WO2009141003A1

WO2009141003A1 - Device for administering an injectable product with a dispensing counter

Info

Publication number: WO2009141003A1
Application number: PCT/EP2008/056203
Authority: WO
Inventors: Fritz Kirchhofer; Anjan Selz
Original assignee: Tecpharma Licensing Ag
Priority date: 2008-05-20
Filing date: 2008-05-20
Publication date: 2009-11-26

Abstract

The invention relates to an administering device with a dispensing counter, comprising: f) a housing (1, 2) with a receptacle for a product for administration, g) a piston rod (11), which may be moved for dispensing a product dose in a forwards direction (V), h) a pump body (14), which can carry out a dispensing movement in the forwards direction (V) and a filling movement in opposing the forwards direction (V), i) the pumping body (14) being coupled to the piston rod (11) such that at least a part of the filing stroke is carried out relative to the piston rod (11) and the dispensing stroke is carried out in the movement of the piston rod (11) in the forwards direction (V), j) and a dispensing counter for counting the executed dispensed doses with a counting body (50; 60) moving in a counting direction, coupled to the drive body (14) such that the carrying out of a dispensing stroke brings about a counting stroke of the counting body (50; 60) in the counting direction.

Description

Device for administering an injectable product with a distribution counter

The invention relates to a device for administering an injectable product with a distribution counter. The destruction is preferably an injection device, but in principle may also be an infusion device. The invention is directed to a use in the area of self-administration, that is, to applications in which the respective user administers the product himself. However, the invention is also advantageous for administration by medically trained personnel and is not limited to self-administration.

In the self-administration I still have to be assured that the product is given in a simple way and in the correct dosage when administered by medically trained Peissal. In diabetes therapy, for example, self-administration of insulin is common. It should be remembered that the skill of the self-proclaimers fluctuates widely. If the product is administered again and again over a longer period of time, for example in diabetes therapy, an exercise effect is established. In other therapies with sometimes only a few administrations, such a training effect can not be established. All the more it is important to a simple and safe operation of the respective device. "The Pioblematik is aggravated if the dose of product to be administered should be changeable, be it that a doctor presets the product dose for a particular Selbstabreicher or self-pollinator even selects the Pioduktdosis ,

From WO 03/057285 A2 a Voπichtυng with a counting direction for injections is known. The counter comprises a counting ring with a counter scale on weekdays, so is limited to use in therapies with one administration per day.

The counting ring is coupled to a dosing device of the device so that the counting ring each time the dose selection is moved on a weekday. The distribution of the set dose has no influence on the counting ring.

US 2006-0153693 A1 discloses an administering device with a lifetime determining device. The device is for use over an extended period of time and a large number of administrations, including many

Ampullenwechse! designed. With the life-determining device to the

Use period of the device are limited to avoid erroneous administration due to damage or unavoidable wear. Described is a counter for counting the ampoule change. On alternatively the count of the

Distributions will be noted. The end of the life is displayed.

It is an object of the invention to count the number of actually executed distributions in a simple and secure manner in order to obtain a reliable indication of the number of distributions.

The subject of the invention is an apparatus for administering an injectable product which comprises a housing with a receptacle for the product and a conveying device for conveying a product dose. The housing may directly form a reservoir for the product, but more preferably a receptacle received or receivable in the receptacle of the housing forms the product reservoir. Such a container may in particular be formed as an ampoule. Such containers are known from different therapies, such as diabetes therapy. The product is conveyed by means of a piston, which is movably received in the reservoir in a Vorlriebsrichtung. If a product container is inserted into the receptacle of the housing ¹ or itself forms the receiving reservoir, the piston is part of the conveyor. The conveyor comprises a piston rod for such a piston, which is movable in the advancing direction for the distribution of the product dose. The piston rod is preferably a stabfoπnige, inherently rigid structure. It is preferably made in one piece, but may in principle also be composed of several parts, for example, from chain-like movably connected push members. It must be able to transmit a force acting in the advancing direction on the piston. The device allows in voi teilhaften versions the setting of the product dose. It may be designed for adjustment by a treating physician presetting a particular product dose not variable to the patient, or for adjustment by the user himself, ie a dose individually adjustable for each administration. In embodiments with dose selection capability, the device comprises Dosiergtied for adjusting the product dose, which is adjustable for setting different product doses relative to the housing in unteischiediiche selection positions.

The conveying device further comprises a conveying member that can carry out a winding stroke and a pouring action into the feeding direction against the feeding device relative to the casing, preferably also relative to the optional metering member. The delivery member is coupled to the piston rod so as to rest the inflation stroke relative to the piston rod and to cause the piston rod to move in the direction of delivery during its delivery stroke. Voi preferably, the piston rod and the conveyor member are coupled together so that the conveyor member is moved relative to the piston rod at each Aufziehhub a little further against the Vortriebsiichtung and thereby the length of the piston rod, measured between a Voitriebsrichtung front end of the piston rod and a coupling engagement dei Piston rod, preferably a coupling engagement with directly the conveyor member is increased, Aufziehhub and Ausschütthub can always be the same length. In the preferred embodiments with dosing, the delivery member can perform the Aufziehhub up to a predetermined dose position by means of the dosing, from which it executes the discharge stroke in the discharge. Preferably, however, the dosing member may be coupled to the delivery member in such a way that movement of the dosing member occurring upon selection of the dose causes kinematically coupled movement of the delivery member. Bevoizugter is the dosing member, however, decoupled from the conveyor member and specifies the length of Aufziehhubs only by stop contact.

According to the invention, the device comprises a Ausschüttuπgszähler for counting dei executed distributions, The Ausschüttungszählei comprises a Zähfglied that in a

Counting direction is movable and coupled to the conveying member so that the execution of a

Ausschütthubs each causes a counting stroke of the counter in the counting direction. Since the Metering stroke is bound to the Aiisscliütthub the conveyor member is actually only paid if product is distributed. It is therefore ensured that the payout and not any other operation is counted.

In preferred embodiments, a reversing member is provided which is formed by the counting member or additionally arranged. The Reversiergüed is movably mounted so that it carries out a stroke in a first direction and a Reversierhub in an opposite second direction. The first direction can in particular be the Voitriebsrichtung, so that the reversing in such embodiments performs a reversing stroke movement in and against the Vortπebsrichtung. The reversing member couples the counting member to the conveying member, the coupling is preferably such that the conveying member acts to effect the counting stroke directly on the reversing member and the reversing member directly on the counting member or forms the counting member itself. In principle, however, it is also possible that the conveyor member via one or more intermediate member (s) is coupled to the reversing member or the reversing member via one or more intermediate member (s) with the counter member or are. The word "or" is always understood by the invention in the usual logical sense, i. H. as "inclusive or", and therefore includes both the meaning of "either., or" as well as the meaning of "and", as far as the respective concrete context does not exclusively result in a limited meaning. With reference to the coupling of conveying member and counting member, this means, for example, that the conveying member via one or more intermediate member (s) on the reversing member and this directly on the counting member or instead the conveying member directly to the reversing member and this via one or more intermediate member (s) on the counting member, in yet another alternative, that the conveying member via one or more intermediate member (s) can act on the reversing member and the Reversiergüed via one or more intermediate member (s) on the counting member and in yet a preferred, already mentioned alternative, that the conveyor link can act directly on the reversing member and the reversing member directly on the counting member.

The coupling of conveying member and reversing member is designed so that one of Aufzäehhub and Ausschütthub the conveying member causes the stroke of the reversing member in the first direction and the other from Aufziehhub and Ausschütthub the Reversierhub permits or causes. Of the

Aufziehhub the conveyor member can cause the Reversierhub, for example in a Carrier Entry In such an embodiment, a return member may be arranged to cause the travel of the reserve member in the first direction and the delivery member to allow this stroke. However, the coupling is more preferably designed so that the winding stroke only permits the reversing stroke of the reversing member, while the Ausschiitthub causes the stroke in the first direction. In these preferred variants, the device has a restoring member which acts in the second direction, preferably against the driving direction, on the reversing member. The return member is preferably a spring member and may be formed as a pneumatic spring or preferably as a mechanical spring, particularly preferably as a compression spring. However, the return member may also be provided in other embodiments, for example, supportive of said driving intervention.

It is advantageous if the reversing member performs a reversing stroke movement of a respective predetermined length, preferably always the same length. The specification of the length of the reversing stroke movement is suitably carried out by stops, a stop for the first direction and a stop for the second direction. Such a pair of stops may in particular be formed by the housing or a component fixedly connected to the housing with respect to the reversing stroke movement of the reversing element. In preferred first embodiments, the stops are immovable relative to the housing in all respects. In a particularly preferred second embodiment, one of the stops, preferably a stop acting against the advancing direction, is formed by a residual quantity member of a residual quantity indicator. This residual quantity member is preferably immovably connected to the housing in and against the first direction of the reversing stroke movement and preferably connected movably thereto in quenching in order to display a variable residual quantity, preferably to display itself or by means of an additional display element. The Reservierglied reaches in at least one of the two directions of Hubbeweglichkeit itself in the stop contact. In the other direction, the length of the stroke or Reservierhubs is also determined by stop contact of the Reservierglieds or instead of the conveyor member.

As already mentioned, the reversing member is movable in and against the advancing direction in preferred embodiments, so that the lifting movement of the conveying member and the reversing reciprocating movement of the reversing member are rectified. This allows a Coupling means Anschlagkontakl in a particularly simple and safe for counting manner, the conveyor member takes the Reveisierglied preferably in contact with the stop. Although it is possible that the stop contact against the Voilriebsrichtung, ie causes the Reversierhub the Reversierglieds. However, the stop contact is more preferably in the advancing direction. In particular, in Ausfünυngen where the stroke of the Föiderglieds may have a variable length, because the device allows the selection of different product doses, it is advantageous if between the conveyor member and the reversing member by the Ausschütthub or more preferably by the Aufziehhub a clearance is created, in the execution of the other hub, the conveyor member travels before it comes into abutting contact with the reversing member. Thus, the conveyor member can get in its Aufziehhub in the AnschJagkoπtakt and take the reversing to then allow Auszustihrung the Ausschütthubs the stroke of the Reversierglieds in the first direction, preferably in the Vortiiebsrichtung, this stroke of the reversing would be effected by means of said return member. However, more preferably, the conveyor member reaches its stop stroke in the stop contact and presses the reversing member in the Voitiebsiichtung. In these preferred embodiments, said return member causes the Reversierhub against the advancing direction,

In preferred first embodiments, the reversing member is provided in addition to the counting member and coupled to the counting member so that it is the Reversierhub relative to the

Counter performs and the counter member takes in the stroke in the first direction. In such embodiments, it is further preferred that one of the counting member and

Reversing member, voizugsweise the counting member, a counted line of

Has engagement elements, which may be formed in particular as a row of teeth odei example, as a row of holes or series of Verliefungen or Abragungen other

Shape. The first direction of the Hubbeweglichkeit the Reversierglieds agrees in such

Embodiments coincide with the Zähllichtung, so that the reversing member in its stroke in the first direction in engagement of a counter-engagement element in the series of

Engagement elements entrains the counter in the counting direction. It is particularly advantageous if the reversing member and the counter member are directly in the driving engagement with one another, that is to say the engagement counterpart element with respect to the first direction or with respect to the first Counting direction immovably connected to the reversing member or, more preferably, is formed in one piece with the Reveisierglied.

In the first embodiments with a counting member and a separate reversing member thereof, it is preferred if the counting member is elongate in the counting direction in a rod-shaped manner. A counting member can be provided in such a form particularly space-saving in devices that leave little room for the installation of a counting member. With regard to the arrangement, it is advantageous if the counting member protrudes in Zählrichtυng into the receptacle formed by the housing for the product, Advantageously, a remaining between the housing and a receptacle recorded in the receptacle radial gap is grooved for the counting member remains such a gap not free from home, it can be created by appropriate shaping of the housing, for example, by a uniform expansion over the circumference or a local widening or oval cross-sectional shape.

The counting member, in particular a counting member different from the reversing member, is guided linearly in preferred embodiments in the counting direction. A linear guide required for this purpose can be formed, in particular, by the housing.

In preferred second embodiments, in which the reversing member can also be movable in and against the advancing direction, the counting direction of the counting member transversely to the advancing direction, such a reversing member can advantageously even form the counting member. The counter member, which is movable in such embodiments transverse to the direction of advance in the Tough, advantageously around a translation axis along which the conveyor member performs the Aufziehhub and the Ausschülthub be rotatable, the counting direction, in such embodiments in the circumferential direction of the rotatable counter member. It is advantageous if the movement of the reversing member against the advancing direction in a first guide engagement of a first guide element and a first engagement element a ver part of the Zählhubs and the movement of the Reversierglieds in the VorUϊebsrichtung in a second guide engagement of a second Führungselemenls and a second engagement element the remaining second Part of the Zählhubs effected. The reversing member can in particular the first engagement element and the form second engagement element directly. The first guide member and the second filling member are preferably non-movable relative to the housing in and against the counting direction, and more preferably are not movable in and against the advancing direction. In embodiments in which the counter member simultaneously forms the Reversiergüed, the reversiei lifting movements and the Zählhub are thus carried out by the same part, being understood as part of a unit that performs in their entirety the respective movement. The part or unit may be composed of a plurality of parts, but the plurality of parts are preferably immovably connected with each other with respect to the count clearing and the direction of the reversing stroke. More preferably, the counting and reversing member is formed in one piece. In particular, it can be formed as a tooth.

The number of distributions made is displayed on a display, in the following payout counter. The display comprises a countiska, which is preferably formed by a series of natural numbers rising in the counting direction. Preferably, these are natural numbers which increase in value in the counting direction with the value zero, preferably "0", starting in one's shoulder. In this way, the user or a treating physician can unmistakably read the number of distributions. The display further includes a marker whose position relative to the counter scale indicates the number of payouts. The Maiker may, for example, form an arrow or a stroke maize or, preferably, a window, in which the number of the counter scale appears, which corresponds to the number of counts paid and actually made on the basis of the invention.

The invention prefers a direct display, a direct display indicator is that the counting member has either the marker of the display or its counter scale. If the counting member is provided with the counter scale, as is preferred, in particular the housing may form the marker or be provided with the marker. It is apparent from the filling stations for indicating the counter display that it is particularly preferable to have a display in which the counting menu with the counting scale and the housing with the markings formed by a viewing window are visible. This will make the ad unambiguous to the user created. Through the viewing window only the Zahleπwert the meter scale is visible, which corresponds to the number of actually made distributions.

The payout counter can in particular be combined with a residual meter display. A remainder quantity indication, which indicates a residual amount of the product still available after one or more distributions, enables control of the correctness of the administration in combination with the payout counter according to the invention or the payout meter display. In particular, the control can be carried out by a treating physician. For the control by the user or a doctor, as far as accompanying Äiztliche care is provided, the device can be designed with advantage so that the number of distributions and the remaining amount at a glance without further manipulation can be read. For this purpose, it is advantageous if the residual quantity display and the distribution counter display are arranged at a distance from each other along a longitudinal axis of the device, such that both displays can be detected at a glance without rotational movement of the device. The two displays are in such embodiments on the same longitudinal side of the device or the housing, i. in terms of the circumferential direction on the same page, readable. Preferably, there are no other displays or attention-grabbing other signs between the two displays. As an alternative to an axially aligned or at least substantially aligned double display, the displays can also be close to one another in the circumferential direction or optionally offset by up to 180 ° to one another, preferably at the same axial height,

If the product quantity remaining in the reservoir after execution of one or more delivery strokes is greater or at least as large as the product dose set with the current metering stroke, the remaining quantity indicator preferably shows the set quantity

Product dose. Alternatively, however, it may also be designed such that it merely signals to the user, preferably visually, that one more is still available for the administration of the set one

Product dose sufficient amount of product is available in the reservoir. The residual amount indicator has a dose scale that may be formed with a single or multiple symbolic dosage mark (s), such as a plain color display with, for example, a green color mark. When using only color marks is However, an indication of the remaining amount only makes sense if only a few choices regarding the dose are given or only a single dose is preset by a doctor. However, the quantity of product still available is preferably displayed as a numerical value, especially as dose-wide in dosage units. If the quantity of product still available falls short of the set product dose, the residual amount indicator indicates this, for example in the form of a warning signal. The warning signal can be output acoustically or vibrationally, it is preferably optically output or comprises at least one optical output. An optical warning signal may be output in the visualization of a plain color mark, such as a red mark, in a viewing window. Preferably, however, the still available residual amount is displayed as a numerical value, particularly preferably as a dose value in dosage units.

The remainder quantity display comprises at least two remainder members which are movable relative to one another and which by the position they occupy relative to one another indicate the remaining quantity still available. The at least two remainder quantity members are referred to below as the first remainder member and the second remainder member. The relative mobility may be configured such that each of the remainder members is movable relative to the housing. In preferred embodiments, only the first remainder member is movable relative to the housing, the second remainder member may advantageously be formed by the housing, for example, an outer housing shell, the components surrounds the device. As a housing and mounting parts or attachments are understood such a housing shell. The first remainder member is coupled to the conveyor member so that the pull-up stroke causes movement of the first remainder member in a first direction and the dispensing stroke of the conveyor member causes movement in the opposite direction. One of the remainder quantities has the dose scale with one or preferably several Dosismarken, preferably the first residual limb. The remainder quantities act together so that from the position occupied by the other of the remainder members relative to the dose scale, the remaining amount of product still to be dispensed with the next dispensing stroke is readable. The other residue component forms the marker for the dose scale. The marker can be formed, in particular, as a viewing window, by which the dose mark of the scale, which corresponds to the remaining quantity available, preferably corresponds to a numerical value, can be read. The viewing window is preferably in Housing and there preferably formed as a breakthrough. The Durchbiuch can be open or covered by a transparent disc, the disc can be formed into a magnifying glass weitet. The window of the pouring count indicator is also the same. As already mentioned, the dose scale can be a color scale with few, possibly only two or different colors, for example green and red or green, yellow and red. However, it is preferably a dose scale with dose values given in units of units which increase in value in the first direction of the relapse rate of the first residual quantity member.

The location at which the residual amount is displayed is preferably fixed relative to the housing, ie, the residual amount indication is resistant to the housing. In preferred embodiments, the first residual amount member moved by the metering stroke and the delivery stroke has the dose scale, and the second residue component forms a stationary marker for the dose scale

The Veiabreichungs device can with Vorteü addition to residual quantity display have a dose display that always displays the set product dose The dose scale of the remaining amount display can also form a dose scale for the further dose display. A common for the remaining amount display and the wide dose display dose scale can be most easily realized in such embodiments in which not the movable first residual amount member, but the second residual amount member is provided with the dose scale and is formed by the housing. In preferred embodiments, however, a separate, additional dose scale is provided for the further dose display. A special one! The advantage of displaying the remaining quantity and the set product dose, each with its own dose scale, is the location at which the remaining quantity is displayed and the location at which the set product dose is displayed can be selected. If the two dosage scales are movable relative to the housing, this is particularly advantageous for the readability and thus the simple and secure handling of the dispensing device. Thus, the two displays can in particular be arranged so that they are always simultaneously and at the same place, relative to the dispenser Housing, read and thus eifasst be the same time the two displays are preferably arranged along a parallel to dei propulsion direction axis spaced from each other, so that the two displays can be detected quickly and safely at a glance With the housing stationary, the user may also not have to move the housing, but can hold it with only one hand when selecting the dose and accordingly reading the display. The operation in the dose selection is therefore easy and not least therefore safe. The dose indicator for the adjusted Pioduktdosis also has a marker, dei preferably by a viewing window and bcvoizugt particularly formed by a viewing window of the housing wild. For this view window, the exporations to the window of the remaining quantity display apply mutatis mutandis

In a further development, the administering device in the area of the product receptacle has a further remainder indication, in that the housing is transparent with respect to the receptacle, the transparency being formed by means of a viewing window, so that the view of the product conveying plunger is released. If the housing of the housing is eingeiichtet for receiving a container filled with the product, voizugsweise a voiabgelüutel ampoule with the piston to record, the container is also transparent in such embodiments, or at least beieichsweise transparent to recognize the piston. In the area of the receptacle, a Dosisskaia extends in the direction of the volume, so that the axial position of the piston relative to this dose scale is identifiable in the transparent area and the piston dahei forms a marker for the dose scale whose position on the further dose scale is still from the reservoir Indicates the amount of product that can be distributed. The piston may be marked for the purpose of displaying it. However, in overexpanded simple expansions, an edge of the plunger, preferably an anterior edge in cornealization, serves as a dose scale metering scale. The dose scale is preferably formed of numerical dose values in dose units arranged axially one behind the other and decreasing in the advancing direction along the path of the plunger are. Thus, a further developed administering device includes a remaining amount indication set with each dose selection and reset with the distribution of the set dose, thus indicating the remaining amount to be dispensed with each disbursement, and the remaining quantity indication always indicating the remaining amount remaining in the reservoir Dosage scale fixed in the area of the receptacle preferably covers the total amount of product present in the full reseed reservoir, and extends in such embodiments on the total of the piston maximum zurücklegbaren way. In principle, however, it is also possible that this dose scale corresponds only to the amount of product that can be distributed with a longest delivery stroke of the delivery member. In such embodiments, the dose scale extends only over the last in the Voitiebsrichtung distance, that the piston travels in the reservoir in the course of a maximum delivery for the delivery member Ausschütthubs. In such embodiments, the housing in the region of the receptacle in a length of the maximum Ausschütthubs corresponding axially short section may be transparent, for example, have only one compared to the preferred embodiments correspondingly short viewing window,

In a preferred first variant of the first residual quantity member is connected to the Fördergh ed axially not movably coupled ^', so that it participates whose Aufziehhub. It can be formed with the conveying member in one piece or in particular mounted axially non-movable on the conveyor member. Such a first residue member may advantageously project into the receptacle formed by the housing for the product.

In before zugteren second variants, the first remainder member and the conveyor member are coupled together by means of a transmission, which translates the Aufziehhub and the delivery stroke of the conveyor member with respect to the length. The Aufziehhub and the delivery stroke of the delivery member therefore generate a corresponding to the transmission ratio longer stroke movement of the first residual amount member in the first direction and the second direction. An advantage of such a translation is that the dose scale of the residual quantity indicator, with which preferably the first residual quantity member is provided, but which instead can also be provided for the second residual quantity member, is extended over a greater length than the winding-up and the dispensing stroke. Dosage scale dosing marks may accordingly be located larger or spaced apart from one another than in a dose scale of the length of the dispensing stroke. The first remainder member and the conveying member may constitute the only transmission member of the transmission, as is preferred. However, the transmission can also have one or more gear intermediate links in order to convert the lifting movements of the Fördeiglieds in the strokes of the first residual quantity member. Although a transmission gear is given preference, but should not be ruled out that the Fördeiglied is coupled by means of a reduction gear with the first residual amount member. A reduction gear is most likely then in question, if the Dosisskaia the Restmengenπanzeige only a few Dosismarken, for example Faibmarken, or due to limited space only little leeway for the movements of the first Rastmengeπglieds is available.

The transmission can be designed such that the direction of the lifting movements of the conveying member and the lifting movements of the first Restniengenglieds are parallel to each other. The strokes can be directed in particular the same. However, the strokes of the conveyor link are stocky or preferably translated lengthwise

However, the transmission can be formed particularly advantageously so that the lifting movements of the first residual quantity member have a quenching component to the lifting movements of the conveying element. The strokes of the first residual quantity member can in particular simply be directed transversely to the lifting movements of the conveying member. Particularly preferably, the lifting movements of Fördergiieds be converted by means of the transmission in rotational movements of the first residual amount member. The rotational movement of the most residual remainder member may be superimposed on a translational movement along the axis of rotation, but preferably the first remainder member only rotates about the axis of rotation .. In both embodiments, the axis of rotation may be parallel to a translation axis of the conveyor member, in particular the translational axis of the conveyor and the Be the axis of rotation of the first remainder member identical.

The transmission is designed in preferred embodiments as a cam gear. The cam gear comprises a guide member having a guide cam and an engaging material having an engaging member provided with the guide cam in a guide engagement. The cam mechanism can have a plurality of guide members or a plurality of engagement members, that is to say also a plurality of guide members and a plurality of engagement members, which are each pairwise in a guiding engagement. Preferably, the cam gear converts the movements of the Fördergiieds nui in a single leadership angst in the movements of the first remainder member. In deiartigen versions forms one of the delivery link and the first Restmengenglied the Fühiungsglied and the other the engaging member of the cam gear, Preferably, the ete residual amount member forms the guide member with the guide curve. The guide member and the Eingriffεglied can in particular form a screw joint with each other. The guide curve accordingly extends along a helix about an axis of rotation of the helical joint. The engagement member may be a simple engagement cam or a second guidance curve suitably shaped over a correspondingly longer guide portion with the other guide cam. Advantageously, the helical pitch of the helical joint is so large that no self-locking occurs in the guiding engagement when one of the guide member and engagement member is relative to the other is moved axially or circumferentially. A relative movement in the circumferential direction generates a reference movement in the axial direction, likewise a relative movement in the axial direction generates a relative movement in the circumferential direction. Are the strokes of the conveyor member axial translational movements and the conveyor member and the first remainder member together in the guide engagement, as is preferred, generate the Hubbewegungen the conveyor member therefore Hubdrehbewegungen the first residual quantity member, which is advantageously freely rotatably supported for this purpose.

The coupling of the conveying member and the piston rod can be advantageously formed as a simple driving engagement, so that the conveying member in its movement in the direction of advance, the piston rod 1: 1 entrains or is taken from the piston rod. Preferably, the conveyor member takes with the piston rod, d. H. the power flow extends from the conveyor member to the piston rod.

In preferred embodiments, the piston rod is a rack with at least one row of teeth arranged axially one behind the other. The teeth are shaped so that an engaging in the Zahme series driver, which preferably forms the output member, in the

Movement in the direction of advance on a trailing edge of one of the teeth of the row of teeth and thereby pushes the piston rod in the advancing direction. The teeth of the row of teeth are advantageously shaped so that each sow on their Vorderfianke a lower tendency to Vorlriebsrichlung than on its trailing edge. The trailing edges can in particular point perpendicular to the direction of advance. In training the piston rod as

Rack, the device further comprises a retraction securing, which also in Engagement with the row of teeth or another row of teeth of the piston rod and prevents in this Rückhalleeingriff that the piston rod can move in the Dosiei'hub the conveyor member in the Voitiiebsrichtung. Preferably, the piston length has at least two of the rows of teeth described, and the conveying member and preferably also the retraction securing engage in each of these rows of teeth.

The optional Dosiergläed is in the selection positions the Aufziehhub of the conveyor member, preferably by stop contact, thus limiting the variable Aufziehhub each by a stop contact. The dosing member is preferably rotatable relative to the housing about the translation axis of the piston rod, so that the selection positions are different rotational angular positions. The selection positions may in particular be discretely predetermined Rastpositioneπ. Preferably, the dosing member or the conveying member itself directly forms a stop, particularly preferably forms both the dosing member and the conveying member each one of the stops, which reach each other in the stop contact to limit the Aufziehhubs. The dosing member may in particular be formed as a stair member in the manner of the dosing member of US Pat. No. 6,277,101 B1, which is referred to in this regard. Alternatively, the dosing can form the metering stop for the respective selection position as a spiral continuously rotating stop. An example of such a dosing member is disclosed in US 6,699,224 B2, which is incorporated herein by reference.

In preferred embodiments, the invention includes a second, second conveyor member which, in conjunction with or preferably relative to the optional dosing member, can perform axial strokes between a dump position and a firing position. The stroke of the second conveyor has a different axial length than the take-up or dumping stroke of the other, first conveyor. Beinhallet the device said dosing member, the stroke of the second conveyor member for at least one of the selection positions of the dosing a different axial length than the Aufzieh- or Ausschütthub the first conveyor member. A coupling coupling the first conveying member to the second conveying member is arranged such that the stroke of the second conveying member into the triggering position causes the winding stroke of the first conveying member and the stroke of the second conveying member into the discharging position causes the discharging stroke of the first conveying member. The Coupling thus compensates for the differences in length of the strokes of the second conveyor member and the first Fördeiglieds.

The Ausschüttuπgszähler may be coupled with the second conveyor member instead of the first Fördeiglied, with the comments for coupling with the first conveyor member also apply to this alternative coupling. The conveyor, in particular the co-wiping of the conveyor members in the dose selection and the distribution, wiid in the international patent application "Voπichtung zui administration of an injectable product with length compensation", which the applicant has eingei at the same time with the present application eingei calibrated described. This parallel application will be referred to for particular features of the conveying device. Furthermore, with regard to the remaining quantity indication, the further international application entitled "Device for administering an injectable product with residual quantity indicator", also filed with the same filing date as the present application, is referred to.

Advantageous features are also described in the subclaims and their combinations

In the following, embodiments of the invention will be explained with reference to figures. The features which become apparent in the exemplary embodiments form, individually and in each combination of meymics, the subject-matter of the claims and also the embodiments described above, which expands advantageously.

1 shows a first Ausfühiungsbeispiel ai device according to the invention in a selection state,

2 shows the Voπichtung of Figure 1 in a trigger state,

FIG. 3 shows the device in the state of FIG. 1 in a view,

FIG. 4 shows the device in the state of FIG. 2 in a view,

Figure 5 shows a second exemplary embodiment of a Voirichtung invention in an off wah Izeit

FIG. 6 shows the device of FIG. 5 in a triggering state,

7 shows the Voπichtung of Figure 5 in another longitudinal section, FIG. 8 shows the device of FIG. 5 in a cross section,

9 shows the device of FIG. 5 in the selection state in a side view, FIG.

FIG. 10 shows the device of FIG. 5 in the release state in a side view;

11 shows a first exemplary embodiment of a distribution meter before a first

Distribution,

FIG. 12 shows the payout counter of FIG. 11 after a first payment,

Figure 13 shows the device of Figures 5-12 in a cross section with the

Distribution counters,

FIG. 14 shows the device of FIG. 5 before the first discharge with the

Dividend payable of FIG. 11 and an additional remainder quantity indication,

FIG. 15 shows the diagram of FIG. 14 after the first distribution,

FIG. 16 shows a device derived from the first exemplary embodiment in one embodiment

Selection state with a payout counter of a second

Embodiment,

17 shows the direction of the figure 16 after several distributions in one

Side view on a display of the payout counter,

FIG. 18 shows the payout counter of FIG. 16 in a first state,

Figure 19 shows the Ausschüttungszählei of Figure 16 in a second state and

FIG. 20 shows a device according to the invention with a payout counter of a third one

Export case.

Figure 1 shows in a longitudinal section a presentation for the administration of a product to be injected according to a first embodiment of the invention. The device is an injection device in the form of an injection pen. The device comprises a housing with a distal housing part 1 and a proximal housing part 2, which are connected to each other inseparably, but alternatively can be releasably connected to each other. The housing part 1 forms a receptacle for a container 3 filled with the product to be injected. The receptacle 3 is a prefilled ampule. The receptacle 3 has an outlet at a distal end and becomes fluid-tight by a piston at a proximal end 10 closed. The piston 10 is axially movable in the container 3 in a Vorsiebsrichtung V on the outlet to spill product. In FIG. 1, the device is in a selection state, in which the product dose to be administered is set.

Figure 3 shows the device in a side view also in the selection state. The housing part I is exemplified over most of its axial length as a circular cylindrical sleeve. It has an elongated viewing window 4; which clears the view of the transparent container 3. The viewing window 4 is so long that the piston 10 over its entire distance, which he can travel in the container 3, is visible. On the circumference of the housing part 1 extends next to the Sichlfenster 4 axially a Dosisskala 5 "The piston 10 serves as a marker in Ausftihrungsbeispiel a distal edge of the piston 10, so that on the basis of the axial position of the piston iθ on the Dosisskala 5 still in the container 3 present product quantity, the remaining amount can be read. The device has two further displays, a dose display 6 and a further remaining quantity display 7. The dose display 6 shows the set dose, and the remaining quantity display 7 again displays the available remaining quantity. The displays 6 and 7 are each formed by a viewing window excluded in the housing part 2 and in each case a dose scale, wherein different components of the device serve as carriers of the dose scales. The dose scale of the dose indicator 6 is attached to a circumference of a rotatably connected to the housing part 2 dosing member 25. The user can set the desired product dose by means of a metering rotational movement of the dosing member 25. In the initial state of the device, the dose indicator 6 indicates a minimum dose, in the embodiment "12-5", but the menopausal dose may also be nulidosis.

FIG. 2 shows the device after setting the product dose in a triggering state. The device in the release state is also shown in a side view in Figure 4.

The device comprises a piston rod II, which is movable relative to the container 3 in the Vortiiebsrichtung V and acts in this movement on the piston 10 to propel it in the container 3 The piston rod 11 is secured against movement against the Vortiiebsrichtung V, can be translational So only in the direction of propulsion V to be moved. It is formed as a rack with two formed on opposite longitudinal sides rows of teeth teeth saw teeth 12, in the prevention of movement against the advancing direction V a Rückzugssi rather ung 2a engages. The retraction securing device 2a is molded in one piece with the housing, here for example in one piece with the housing part 2, but could alternatively also be formed separately and connected axially fixedly to the housing 1, 2 ^' .

The apparatus further comprises a first conveyor member 14, hereinafter driven member M ₁ and a second conveyor member 20, hereinafter drive member 20, which together with the piston rod 11, the piston 10 and couplings form a conveyor of the device. The output member 14 is in a Zahneiπgriff with the piston rod 1 J and has for this purpose driver 15, which are preferably, as in Ausiuhrimgsbeispiel, formed at the distal end of the output member 14. The tooth engagement is a Mitnahmeeingiiff, in which the output member with a movement in the direction of advance V, the piston rod 11 entrains. The driving engagement is further designed so that the output member 14 is movable relative to the piston rod 11 against the advancing direction V in order to adjust the product dose to be administered can. To release the entrainment engagement, the drivers 15 are elastically bendable outward from the meshing engagement with the respectively assigned row of teeth 12, so that they can slide in the movement against the advancing direction V over the rows of teeth 12, while the piston rod 11 in the retaining engagement with the retraction securing device 2a in FIG is held in its axial position.

The drive member 20 is axially movable back and forth between a discharge position assumed in the selection state of FIG. 1 and a release position assumed in FIG. The discharge position is specified by stop contact, in the export example, a stop contact in the axial direction. A discharge stop 2b, which determines the discharge position, is formed by the housing part 2. The drive member 20 has a counterpart at a distal end to a stop 21, but only about a flange 16 of the output member 14 and thus indirectly in the discharge position against the discharge stopper 2b suppressed. The flange 16 protrudes from a sleeve portion of the output member 14 radially outward. The triggering position is determined by a Halteeingiiff, in which a Eingiiffselement 24 of the Anlriebsglieds 20 passes when it moves against the advancing direction V to the in Fig. 2 daigestellte triggering position wild in the holding engagement is the Eingiiffselement 24 in the Voitriebsiichtung V by Anschlagkon takl relative to the housing 1, 2 fixed Dej axial stroke of the drive member 20 from the discharge position to the release position regardless of the set Pioduktdosis always the same length,

The Pioduktdosis is mitteis of the dosing member 25 adjustable The Dosieiglied 25 is rotatably connected to the housing part 2 about the longitudinal axis L, but axially relative to the housing part 2 is not movable. The dosing member 2 has an externally accessible sleeve section with an outer pial lining 28 which the user can use to adjust the dose. The dosing member 25 has at a distal end, inside the housing part 2, dosing stops 26 distributed around the longitudinal axis L. which are formed by a distal end face of the Dosieiglieds 25, but alternatively, for example, could protrude further proximally from the peripheral surface of the dosing member 25. The Dosieranschläge 26 run rough as a spiral around the longitudinal axis L, but form in the circumferential direction Tieppenstufen, as esp. In Figiu 2 to know egg, in dei the steps, d. h, the individual metering stops 26, are shown by dashed lines The discreetly formed in this way dosing stops 26 are in accordance with the fineness of the stair staging at different axial heights. The Dosieiglied 25 is set by means of Dosierdiehbewegung in different selection positions, a Auswahlposilion per Dosieranschlag 26. In the individual selection positions are the Dosiejanschlag 26, which is associated with the respective selection position, and formed by the Abtiiebsglied 14 counter-stop 17 axially facing gegenübei. The counter-stop 17 is gefoimt to the flange 16 of the output member 14 and extends it in the radial direction and in the circumferential direction übei a Vei equal to a full round about the longitudinal axis L small Bogcnwinkel. By rotating the Dosieiglieds 25 can successively each dei dosing stops 26 in the counter-stop 17 axially gegenübei lying angular position moved grazing The axial distance between the respective selection position associated Dosieranschlag 26 and the Gegenaπschlag 17 determines the Pioduktdosis, alleidings nui, as long as in the container 3 befindliche Amount of product, the remaining amount, at least as large as the set product dose. The device has a flexible coupling that couples the output member 14 to the anti-fatigue member 20. The flexibility is that the coupling allows for relative movement between the drive member 20 and the output member 14 over at least a portion of the axial stroke of the drive member 20 in each of the select positions of the dosing member 25. However, the coupling causes the stroke of the drive member 20 to move into the Triggering a Dosierhub the output member 14 and the stroke of AπtriebsgUeds 20 in the discharge position causes a Ausschütthüb the output member 14. The axial length of the metering stroke corresponds to the axial length of the delivery stroke, this length being variable and of the adjusted product dose, d, h. from the selection position of the dosing member 25 depends, while the axial length of the stroke of the drive member 20 but is always the same. The Dosierhub is the lifting movement of the driven member 14 against the advancing direction V from the occupied in Figure 1 distal axial position against the set selection position of the dosing 25 associated dosing stop 26, and the Ausschütthub is the lifting movement of the output member 14 in the opposite direction to the Ausschüttanschlag 2b ,

The coupling comprises a coupling element 18 (Figure 2) and a coupling counter-element 22, which are in the dispensing position of the Aniriebsglieds (20) with each other in a clutch engagement. The clutch engagement is an entrainment engagement which, upon axial movement of the drive member 20 toward the trip position, effects the metering stroke of the output member 14 and automatically releases at the end of the metering stroke as the drive member 20 is moved further toward the trip position 27 that the drive member 27 covers a first piece of its stroke together with the output member 14 and a second piece of the stroke without the output member J 4. In the export example, the coupling element 18 is directly 'formed on the output member 14 and the coupling counter-element 22 directly on the drive member 20. In modifications, either the coupling element 18 on an intermediate member or the coupling counter-element 22 on an intermediate member or each of these elements 18 and 22 could be formed on a respective other intermediate member, as long as only the described function of the flexible coupling is met. However, coupling by direct engagement of drive member 14 and take-off member 20 will, in view of the simplicity of construction, and in particular the Ensuring the proper function of the coupling is preferred. The coupling element 18 is formed as a radial recess, optionally a single recess, or preferably as in the embodiment as a circumferential groove or in the form of several discrete recesses. The Kuppliingsgegenelement 22 is in the radial direction with respect to the longitudinal axis L from the clutch engagement elastically deflectable snapper with an engagement cam at the end. In the embodiment, two coupling counter-elements 22 are provided, which are offset by the longitudinal axis L at an angle of 180 ° to each other. The arrangement of recess and elastic snapper can in principle be reversed, d. h, the recess could be provided on AntriebsgHed 20 and the elastic snap on the output member 14. The counter-coupling element 22 is released at the end of the metering stroke in the case of a force which is further exerted on the driving member 20 against the advancing direction V by the coupling counter-element 22 yielding by elastic bending from the coupling engagement.

The releasable coupling is formed in the embodiment with two coupling counter-elements 22, in principle, a single coupling counter-element 22 would suffice. Alternatively, three or even more coupling counter-elements 22 can be provided distributed around the longitudinal axis L and, for example, interact with the same coupling element 18. The coupling counter-elements 22 are formed in the embodiment as elastic snapper. Alternatively, for example, an elastically expandable in its cross-section or elastically expandable ring which spans in the coupling engagement formed as a depression coupling element 18, the only coupling counter-element 22 form. The conditions with respect to the coupling element 18 and the one or more coupling element (s) 22 can also be reversed by the coupling element 18 by one or more snap-action in the manner of the coupling counter-elements 22 or by said ring and the counter-coupling elements 22 by a recess in the Art the coupling element 18 is replaced or become.

The clutch engagement is not only solved when the metering is carried out completely, the output member 14 thus comes into abutting contact with the selection position of the metering member 25 corresponding metering stop 26, but also when the Stroke movement of the output member 14 otherwise duich a resistance is terminated, which exceeds the Haltekraß the clutch engagement. This is the case when the remaining quantity remaining in the container 3 is smaller than the product dose corresponding to the set selection position of the dosing member 25. This condition is shown in FIG. The metering stroke of the output member 14 is then terminated by reaching the metering stop 26 when the piston rod 1 1 comes into an axial stop contact with the output member 14. For this purpose, the piston rod 1 1 at ilirem pioximalen end a residual amount stop 13 and the output member 14 in its distal end portion a residual amount counter-attack 14a.

To automate the distribution of the adjusted dose of Produlctdosis, the device is equipped with a drive spring 30. The Antiiebsfeder 20 acts in the advancing direction V on the drive member 20 and is supported against the advancing direction V on the metering member 25 and thus ultimately on the housing part 2 from. It was tensioned by the movement of the Antiiebsglieds 20 in the release position and causes when triggering the device, the movement of the drive member 20 in the discharge position, d, h in the Voitriebsiichtung V For the support, the drive member 20 at a distal end in the region of Stop 21 gefoimte provided with the same reference numeral shoulder 21 and the metering member 25 at an axial distance a shoulder 29 on. The drive spring 30 is received over a large portion of its axial length in an annular gap that remains between the drive member 20 and a distal sleeve portion of the Dosieiglieds 25. It is claimed to Diuck, is functionally so a compression spring, and shaped as a helical spring.

The output member 14 is made up of two parts, said sleeve portion which forms the coupling element 18 and from which the drivers 14 and the flange 16 are supported, and an end portion 19 which is in the manner of a cap at the proximal end of the sleeve portion of the drive member 14 and firmly connected to the sleeve portion. The sleeve portion and the end portion 19 can be considered as a single piece,

The Anlriebsgiied 20 is also composed of two separately manufactured parts, which may be considered in the assembled state as a single part. In the two parts is a distal sleeve portion, the output member 14th surrounds and in particular the coupling counter-elements 22 and the shoulder 21 forms, at which the drive spring 30 is supported in the Vortiiebsrichtung V, and uni a proximal sleeve portion which protrudes from the dosing member 25 against the Vortiiebsrichtung V and at its end an actuating member 23, at the user can grip the drive member 20 and pull against the advancing direction V in the release position.

In the region of the actuating part 23, the engagement element 24 is formed. The engagement element 24 is a flexurally elastic snapper, which is formed in a recess of the sleeve-shaped actuating part 23 and resiliently biased radially outwardly abuts an inner circumferential surface of the dosing member 25, as long as the drive member 20 is not yet in the release position, Once the AusJöseposition is reached, the Eiπgriffselement 24 snaps into an opening, which is formed in the dosing member 25 and forms an engagement counter-element 27 for the retaining engagement of the drive member 20. In the exemplary embodiment, the drive member 20 in the circumferential direction about the longitudinal axis L two 180 ° offset from one another engagement elements 24 and the dosing member 25 according to two Eingriffsgegenefeniente 27 respectively of the type mentioned.

The device has, as already mentioned, a dose display, at 6, to display the set product dose, a first remainder meter, at 7, to display the distributable with the next delivery stroke product quantity and the remainder indicated above, at 4, the second remainder 4 , The dose display is formed by the dosing member 25 and the housing part 2 by the dosing member 25 in a projecting into the housing part 2 sleeve portion on the outer circumference of a dose scale with in the circumferential direction having successively arranged dose values and the housing part 2 is provided axially at the height of this dose scale with the viewing window 6. Through the viewing window 6, the dose range of the dose scale assigned to the respective selection position can be seen in the selection positions of the dosing member 25.

The first remaining quantity indicator, at 7, comprises a first residual quantity member 40 and the housing part 2 as a second residual quantity member. The first residual quantity member 40 has on an outer circumferential surface, which faces an inner circumferential surface of the housing part 2, a Reslmengen-Dosisskala 42 extending from the longitudinal axis L on dose values. The dose scale 42 of the residual quantity indicator can correspond to the dose scale of the dosing member 25. The dose scale 42 of the residual quantity indicator can be read through the viewing window 7 of the second residual quantity member, the housing part 2. The viewing window thus forms a marker of the remaining quantity display 7, 42.

The first resin charge 40 is coupled to the output member 14. When exporting game, the remainder member 40 and the AbtiiebsgHed 14 are in a leading engagement with each other. They form a cam gear with each other. The metering stroke of the output member 14 is converted into a rotary stroke movement of the first residual quantity member 40 about the longitudinal axis L and the discharge stroke is converted into a reverse rotational movement of the first residual quantity member 40. The leftmost quantity member 40 has a guide curve 41 on an inner peripheral surface facing the output member 14 around the longitudinal axis L forms a helix. The output member 14 forms with its metering counter-stop 17 an engagement element which is in the guide engagement of the cam mechanism with the guide cam 41. The residual quantity member 40 is the transmission link, the guide member, and the output member 14 is the engaging member of the cam gear.

The cam gear is designed as Schiaubgelenk with the longitudinal axis L as a screw axis. The slope of the guide curve 41 is so great that in the guide engagement 17, 41 in the axial strokes of the output member 14 can not occur self-locking, but the first residual amount member 40 freely rotates about the longitudinal axis L according to the direction of the lifting movement of the output member 14 back and forth and the dose scale 42 of the residual amount display 7, 42 passes under the viewing window 7.

As shown in FIGS. 3 and 4, the set product dose at 6 and the amount of product actually delivered at the next dispensing stroke, at 7, can be read side by side at a glance. Due to the arrangement of the respective dose scale on the movable member of the respective display, the Handling the device in the setting of the dose and the reading times increased and ensures the adjustment and administration of the correct dose with higher reliability. The user only has to The housing 1, 2 grab with one hand and can then easily adjust the dose with the other hand and at 6 and 7, the appropriate information - set dose and ausschüftbare dose - read. A further advantage is that the second remaining amount display 4, 5, 10 in the axial alignment or at least substantially in the axial alignment with the two displays at 6 and 7 is arranged so that all three displays without having to turn the device on a look can be read next to each other.

Another advantage of the two independent Dosisskalen, namely the dose display at 6 for the set product dose and the first remaining amount display at 7, is the simple and safe control option As long as the container 3 still available

Remaining amount is at least as large as the set product dose, the two show

Show the same value. The user simply and unequivocally travels to the fact that the set product dose is actually distributed with the next delivery stroke. In particular, there are no further considerations and

Meikvorgänge required in this regard. The same applies if the residual quantity is smaller than the set product dose.

Yet another advantage lies in the fact that the lifting movement of the drive member 20 for all adjustable doses is always the same length and therefore the user additionally has the assurance that he has handled his device correctly when the actuating member 23 of the drive member 20 assumes the triggering position, even if the dose values of the dose display differ at 6 and the remaining quantity display at 7,

The Aπtriebsfeder 30 is also a safety factor, especially in combination with the first remaining amount display at 7. Many Useinin It is already difficult to exercise the required for the distribution pressure for manual distribution to be exercised until the complete export of Ausschütthubs. In the present case, however, the drive spring 30- is concerned. After release, the user can further control the discharge process automated by means of the drive spring 30 by observing the last remaining amount indication, since the first remaining quantity indication 7, 42 due to the coupling of the first Restmengenπglieds 40 is automatically reset with the output member 14 in the distribution.

The second remaining amount indicator, at 5, still provides an additional means of checking the correctness of the first remaining quantity indicator 7, 42,

The handling of the device will now be described with reference to FIGS. 1 and 2, with reference to FIGS. 3 and 4:

The user receives the device in Auswahlzusland, as Figure 1 shows it. The container 3 is filled with the product, the output member 14 takes its distal, predetermined by the Ausschütlanschlag 2b end position and the drive member 20 assumes the discharge position. Displays 6 and 7 each indicate the minimum dose,

In this initial state, the user sets the desired product dose by turning the dosing member 25 by means of metering rotational movement in the desired selection position. In the selection position, the associated metering stop 26 and the counter-stop 17 of the output member 14 are axially opposite. The clear distance between the two stops 17 and 26 corresponds to the axial length of the metering.

After setting the dose, the user engages the drive member 20 on the actuating member 23 and pulls it against the direction of advance V from the housing part 2 and the sleeve-shaped dosing member 25 into the retaining engagement of the engagement elements 24 with the Eingriffsgegenelementen 27 out- in this hub takes that Drive member 20 in the clutch engagement of the Kupplungselemenls 18 and the counter-coupling elements 22, the output member 14 with, until it has performed the Dosierhub, ie the counter-stop 17 comes into abutting contact with the axially opposite in the selection position dosing stop 26. When this stop contact made, the metering is thus completed, and the user continues to pull on the drive member 22, automatically releases the clutch engagement 18, 22 and the drive member 20 sets the remaining distance of its axial stroke without the output member 14 back until it in the in Figure 2 shown triggering position passes in this lifting movement, the drive spring 30 is tensioned. Of the Holding engagement 24, 27 is sufficiently strong, so that he can not solve automatically due to the spring force of the drive spring 30.

In the tensioned state, d. H. with the aspirator 20 in the firing position, the user places the device at a desired injection site, pierces an injection needle located at the distal end of the device through the skin into the subcutaneous tissue, and then releases the device. For the release, the user presses against the engagement elements 24 through the engagement counter-elements 27 shaped as apertures and thereby pushes the engagement elements 24 out of the retaining engagement. Once the retaining engagement is released, the drive spring 30 pushes the drive member 20 in the advance direction V. The drive member 20 pushes due to Spring force in the region of the flange 16 against the Abtriebsgiied 14, so that the drive member 20 wiid with the driven member 14 in the advancing direction V moves. Due to the meshing of the driver 15, the piston rod 1 1 and driven in the sequence of the piston 10 in the container 3 in the advancing direction V. The stroke in the direction of advance V is composed of two phases. In a first phase, only the drive member 20 moves under the spring force in the forward direction V. As soon as the drive member 20 comes into abutment against the output member 14, the drive member 20 and the output member 14 continue to move together until the discharge stop 2b reaches and thereby the Stroke of the drive member 20 and the Ausschütthub the output member 14 is completed.

For the Ausschütthub the drive member 20 presses in its distal region, in the embodiment with its distal end, formed by the flange 16, against the output member 14, also in the region of the distal end of the output member 14. However, the driving engagement may instead be formed at a different location Thus, for example, an in the Voitriebsrichtung V facing inner stop surface of the actuating part 23, for example, the bottom, and a pointing against the Vortiiebsrichtung V end face of the end portion 19 enter into the driving engagement, for example, the end face of the end portion 19. It would be necessary to adjust only the axial distance of the alternative stop surfaces. The driving engagement need not be formed by a stop contact, only on Diuck in the predilection direction V belaslbarei stopconcept is not only for the Ausführungsbei game, but generally preferred.

During the metering stroke and the Ausschütlhub formed by the output member 14 engaging member 17 moves first against and then in the Vortriebsiichtung V. In Fühlungseingriff 17, 41, the axial stroke movement of the output member 14, the ete remainder member 40 in a rotary stroke about the longitudinal axis L, the Dosierhub in the one and the Ausschütthub in the opposite direction of rotation. The remaining amount display 1, 42 is thus reset at each Ausschütthub again.

The set Dosϊs whd of the dose display 6 is displayed. The oilable dose is indicated by the residual amount indicator 7, 42. As long as the deliverable dose is at least equal to the set dose, displays 6 and 7, 42 indicate the same dose levels. This is the case for example in the selection state with filled container 3 shown in FIGS. 1 and 3,

If the amount of product in the container 3 falls below the set dose, a discrepancy occurs between the displays 6 and 7, 42. This state is shown in FIGS. 2 and 4. The set dose whd again displayed by the display 6. Immediately after setting the last product dose by means of Doserglieds 25, d. h, even before the drive member 20 has been moved to the release position, the remaining amount display 7, 42 indicates the minimum dose. If the drive member 20 is now moved into the tripping position, that is to say drawn up, the drive member 20 initially carries the output member 14 a certain distance, which corresponds to the residual quantity of the product remaining in the container 3. As soon as the output member 14 with its residual quantity counter-stop 14a comes into abutment against the residual quantity stop 1 3 of the piston rod I l, wherein the axial stop position of the output member 14 in this case koirespondiert with the veibliebeπen still remaining amount of the product, the ICupplungseingiiff the coupling element 18 and the coupling counter-elements 22, and the Antiiebsgiied 20 moves at weiteiem applying axialei traction alone, without the output member 14 continues into its release position, the displays 6 and 7, 42 now show different product quantities, the display 6 the set product dose and the display 7, 42 the remaining amount available,

In addition, the residual amount is indicated by the axial position of the piston 10 relative to the dose scale 5. The of the second remaining amount display 4, 5, 10 displayed

Remaining amount corresponds to the residual level of the container 3 of the remaining amount displayed by the display 7, 42. As long as the total remaining in the container 3 remaining quantity, however, exceeds the distributable with the next discharge stroke residual amount, the two remaining quantities differ from each other, since the first remaining amount display 7, 42, the distributable by the maximum Ausschütthub amount of product and the second

Remaining quantity display 4, 5, 10 indicates the absolutely still available Resimenge.

FIGS. 5 and 6 show a device of a second exemplary embodiment, FIG. 5 in the selection state and FIG. 6 in the triggered state. The device of the second embodiment differs from that of the first embodiment by the flexible coupling of the output member 14 and drive member 20, but apart from the coupling, it corresponds with respect to the operations of dosing and conveying the device of the first Aisftihrungsbeispiels. For example, the piston rod 1 1 is again formed as a rack and the driving engagement of the output member 14 and the piston rod 11 accordingly a tooth engagement. In Figures 5 and 6, the two rows of teeth 12 of the first exemplary embodiment can not be seen, since the sectional planes of Figures 5 and 6 to those of Figures 1 and 2 have at a right angle. The device has a Ausschültungszähler, which may also be implemented in the first exemplary embodiment. In the following, only the differences from the first exemplary embodiment as well as features not yet described, such as the payout counter, are described for the first exemplary embodiment. The function and largely also the geometry of the same components are provided with the same reference numerals as in the first Ausfühl ungsbeispiel.

The flexible coupling of the second exemplary embodiment comes without ICupplungseingriff. With the flexible coupling of the second embodiment, the same effect as in the first Ausfühiungsbeispiel is achieved, however, with a Ausgrechsfeder 31 instead of the Kupplungseingriffs 18, 22 of the first embodiment. The compensating spring 31 acts in the direction of advance V on the drive member 20 and against the Vortriebsrichümg V on the output member 14. It is exemplary, as preferred, supported in the direction of advance V directly to the drive member 20 and against the advancing direction V directly to the output member 14. Alternatively, however, it could also act only one or more intermediate links on the Anüiebsgüed 20 or the output member 14. However, a direct action by direct support is structurally simpler and also increases the reliability,

The output member 14 has for the support on the outer periphery of a shoulder, which is formed in Ausiuhnmgsbeispiel of the end portion 19, but alternatively, for example, on the sleeve portion of the output member 14 aJs outer circumferential flange could be formed.

The drive member 20 has, as in the first embodiment, the stop 21, the play in the second Ausführungsbei, however, divided into two shoulders 21 a and 21 b. The shoulder 21a, on which, as in the first embodiment, the drive spring 30 is supported, projects from the sleeve portion of the drive member 20 radially outwardly and the shoulder 21b protrudes from the same sleeve portion at the same axial height radially inward and forms within the sleeve portion, the axial support for the compensating spring 30- In this way creates a space-saving concentric nested arrangement of the springs .30 and 31, wherein the drive spring 30 in an outer annular gap between the drive member 20 and the metering member 25 and the balance spring 31 in an inner annular gap between the output member 14 and the Drive member 20 is arranged. Said sleeve portion of the drive member 20 ends in the formation of the two shoulders 21a and 21b seen in longitudinal section in the form of a "T".

The mode of operation of the flexible coupling can be seen with reference to FIGS. 5 and 6. After setting the dose in the initial state of Figure 5, the drive member 20 is moved to the release position, which is shown in Figure 6. At this stroke, the drive member 20 exerts on the balancing spring 31 an axial compressive force. The force is transmitted via the compensating spring 31 to the output member 14, which is thus moved by the spring force ebenfälis against the advancing direction V, as shown in the first exemplary embodiment of the counter-stop 17 against the located in the selection position dosing stop 26 of Dosing member 25 passes and the metering of the output member 15 is terminated by this stop contact. The compensating spring 31 is dimensioned sufficiently strong to completely effect the Dosieihub of the output member 14 by complete stroke of the Antriebgtieds 20. It also has a sufficiently long axial spring travel to compensate for the different axial path lengths of the output member 14 and the drive member 20, namely the variable Dosierhub the output member 14 and always the same Auszäehhub the drive member 20 in the release position. The operation during the dispensing process is the same as in the first embodiment, ie. the drive member 20 presses on the stop 21a, 21b on the flange 16 of the output member 14 and thereby this in the advancing direction V to the Ausschüttanschlag 2b.

The compensating spring 31 may also be provided in the first embodiment. It can rest there in the same way on the output member 14, in particular on the shoulder formed by the end part 19. The drive member 20 of the first exemplary embodiment also has, as can be seen in FIGS. 1 and 2, a shoulder distally of the counter coupling element 22, on which such a compensating spring 31 can be supported in the direction of advance V. By arranging a compensating spring 31 also in the First Ausführungsbeispiei the security is increased that the drive member 14 ausfuhrt the stroke of the drive member 20, the full Dosierhub, a balancing spring 31 is not required in the first embodiment, however.

FIG. 7 shows the device of the second exemplary embodiment in the release state in a longitudinal section perpendicular to the section of FIGS. 5 and 6. The device has a driven-off member 14 coupled, also resettable residual amount display according to a second embodiment. The resettable residual amount display of the second exemplary embodiment comprises a movable first residual quantity member 44, which, unlike the first Ausrührungsbeispiel but not via a transmission, but is fixedly coupled to the output member 14. The residual quantity member 44 is axially non-movable relative to the output member 14, in Ausfühmngsbei game it is firmly connected to the output member 14, aiso relative to this immovable. The residual quantity member 44 protrudes from the output member 14 in the advancing direction V and into the receptacle formed by the housing part 1 for the container 3. Also in the second Ausführungsbeispiei forms the housing 1, 2 a second residual amount of dei remaining amount display by the housing 1 is provided with a viewing window 43 through which a residual dose scale 45 of the movable first residual amount member 44 is read. In the second exemplary embodiment, the dose scale 45 extends axially due to the axial lifting movements of the residual quantity member 44, ie the dose marks of the dose scale 45 are arranged axially one behind the other. As in the first exemplary embodiment, the dosage marks are dose values in numbers of dosage units repeating the dosage units

Figures 9 and 10 show the device of the second embodiment in a respective side view of the dose display 6 and the Restrnengenanzeige 43, 45. In Figure 9, the Voi / treatment is in a selection state, however, was with the

Dosieiglied 25 already set the product dose for the next distribution. She can be in

Sichtfenstei 6 read grazing As long as the drive member 20 still occupies the selection position, as in Figure 9, appears in the viewing window 43, the minimum dose. After pulling the Voirichlung appears in the trip state, the figures 7 and 10 show, with sufficient level of the container 3 dose dose of the set product dose in the viewing window 43 dei remaining quantities display 43, 45, the container 3 still in the remaining amount of product, however, the set Dose, the two displayed differ

Dose values accordingly by the set product dose is displayed through the viewing window 6 and the only remaining small amount available through the viewing window 43

Figure 8 shows the device of the second Ausiuhrungsbeispiels in a Quennitl at the axial height of the viewing window 43. The piston rod 1 1 and the retainer 2a, however, are not shown. The remainder quantity member 44 is stretched long in the longitudinal direction of the V-shape. It is shaped in cross-section to the sleeve-shaped housing part 1 and the container 3, so that it can protrude into the advancing direction V in an annular gap remaining between the container 3 and the housing part 1. In the exemplary embodiment, it has the shape of a circle segment in cross section. The arrangement of the movable residual quantity member 44 in the axial extension of the output member 14 and as in the second exemplary embodiment, preferably over a larger part of its axial length in the receptacle 3 formed by the housing part 1 is advantageous for slim injection devices. distribution counter

The device of the second Ausruhiimgsbeispiels is further equipped with a Eveschüttungszähler an exemplary embodiment with respect to the counter, which counts the number of duichgefühiten distributions, Genaui said carried out by the output member 14 Ausschütthübe and brings to the display.

The payout counter is also eikennbai in Figures 5 and 6. Figures 13 and 14 show the device of the second embodiment in view of a distribution indicator 8, 51 formed by this distribution counter.

Figures 1 1 to 13 show the Ausschüttungszählei the first Auslührungsbeispiels, d. H. the distribution meter of the device according to the second Ausführuπgsbeispiel, in each case an enlarged view in a longitudinal section. Figure 11 shows the payout counter of a first metering stroke of the Abtiiebsgüeds 14, and Figure 12 shows it after the first Dosierhub, but before a first delivery stroke of the output member 14. Figure 13 shows the distribution meter in a cross section

The payout counter comprises a counting member 50 which is in a counting direction, in the embodiment, the Vortiiebsrichtung V, movable and at an outer Umfangslläche a Zählig in the counting direction ersti eck Zählkreis 51 in a continuous Nummeiieiung starting with the number zero. The counting member 50 is arranged so that the counting scale 51 can be read by the Sichtfeπster 8. The counter 50 is in the toughening V between Rastposätionen, d. h from a latching position in the next counting position in V each latching position movable and is held by a latching engagement in the respective latching position. For the latching engagement, the counting member 50 has a latching element 52, which is formed as a resiliently flexible snapper, Zui training of Raεtelements 52, the counting member 50 is provided with a recess 53, in which the latching element 52 voπagt. The housing part 2 is provided with locking counter-elements 54 which are in the counting direction V in a row behind each other and spaced apart angeoidnet The locking counter-elements 54 are on a shell inner surface of the housing part 2 respectively formed as a Rastvei depression. The latching element 52 is in the recess 54 associated with the respective latching position. The locking engagement is solvable by means of a force acting in the counting direction V.

The Ausschüttungszähiei further comprises a reversing member 56 which is movable relative to the housing part 2 in and against the counting direction V and hei and is guided in these strokes from the housing part 2 lineai. The reversing member 56 is acted upon by a return member 58, which is preferably formed as in the exemplary embodiment of a mechanical spring, against the driving and counting direction V with a spring force. The counting member 50 is coupled to the reversing member 56 by means of a direct engagement of these two members 50 and 56. For the direct coupling engagement, the counter member 50 engaging elements 55 in the form of a toothed row in the counting direction V and the reversing member 56 a Eingiiffsgegenelement 57 in the form of a resiliently in and out of the coupling engagement with the engagement member 55 biegbaien snap. The engagement elements 55 are swept teeth, each with a respect to the counting direction V inclined Vordci flank and a steeper trailing edge in comparison. In the case of a stroke of the reversing member 56 against the pretensioning device V, the engagement counter-element 57 slides over the row of teeth formed by the engagement elements 55 into the respectively next tooth engagement. In a stroke in the Voilriebsi direction V, the counter-engagement element 57 presses against the steep trailing edge of the respective engagement member 55 and thus takes the counter 50 in the Vortiiebs- and counting direction V with.

The engagement elements 55 and the locking counter-elements 54 are coordinated. The distances measured in the direction of advance V respectively next to each other engaging elements 55 are as large as the distances between each two next adjacent detent counter 54 The Haltekiaft the latching engagement 52, 54 is such that the Rasteingiiff 52, 54 dissolves when the Reveisierglied 56 the hub in the Propulsion and counting direction V performs, on the other hand, however, the counter member 50 in the respective latching engagement 52, 54 lelaüv immovably to the housing part 2 holds when the Reversieiglied 56 performs the Reveisieihub against the Voitriebsiichtung V, ie the latching engagement 52, 54 holds at Ausfühiung the Reversierhubs of Engagement member 57 was applied to the counting member force. The leversieiende stroke of the Reversierglieds 56 is limited in and against the Vortiiebsrichtung V each by a stop, ie the stroke and the same length Reversierhub have a predetermined constant axial length. The housing part 2 or an axially immovable veibuπdene component forms a leveisiei the end stroke limiting stop 2d. In the reversing stroke, the reversing member 56 arrives with a stop surface 57a against the stop 2d. The length of the reversing stroke is slightly larger than the tooth pitch of the series of Eiπgriffselementen 55, that is about a tooth length, in principle, it would also be possible that the length of the reversing stroke is an integer multiple of the tooth length plus a Toleianzzugabe. The stroke in the biasing direction V is limited by the stop 2b (FIGS. 6 and 7), against which the output member 14 comes into contact with each other. Alternatively, the reflective material 56 could come into abutting contact with the housing part 2 in the direction of delivery V at 2c and thus also limit the delivery stroke of the delivery member 14, but an abutting contact directly with the output member 14 is preferred.

In the selection state shown in FIGS. 5 and 11, the output member 14 presses in the advancing direction V _7, ie in the counting direction, against the reversing member 56. In the example, the output member 14 presses against its end, exemplarily formed as a flange 16 Stop 56a of the Reversierglieds 56th

After selecting the dose, the drive member 20 is moved to the triggering position assumed in FIG. Due to the coupling by means of the compensating spring 31, the output member 14 is nachgefühlt The Reveisierglied 56 leads due to the spring force of the return member 59, the Reversierhub against the Vortiiebsrichtung V to the predetermined by the stop 2d end position. The engagement counter-element 57 engages in the coupling engagement with the next tooth gap of the engagement element 35. This state before triggering the device, Figures 6 and 12, If the device is now triggered, namely by releasing the engagement of the engagement elements 24 and engagement counter-elements 27 (Figure 7) , the output member 14 comes at the end of its Ausschütthubs in abutting contact with the Verveisierglied 56 and presses this in the forward direction V to its front, duich the stop 2c predetermined end position. The reversing member 56 takes in this stroke aufgiund the coupling engagement 55, 57, the counter member 50 in the Vortriebst direction V with. This counting stroke of the counting member 50 has the same length as the stroke of the ReveisiergUeds 56.

FIG. 14 shows the device with the payout meter of the first exemplary embodiment in a side view of the payout counter display 8, 51 formed with the payout meter. The device is in the call-by-picking state of a first payout, ie. H. in the same state as in Figures 5 and 11. In the viewing window 8 therefore appears on the counter scale 51 of the count "0".

Figure 15 shows the device after execution of a total of ten distributions. The Ausschüttuπgs count indicator 8, 51 indicates in its window 8 while the count "10".

The arrangement of FIGS. 14 and 15 corresponds to the embodiment of FIGS. 5 to 10, except for a modification with regard to the indication of the residual quantity. The modification consists in that the direction of supply has a second remainder quantity display 4, 5, 10, which corresponds to the remainder quantity display 4, 5, 10 of the first exemplary embodiment (FIGS. 1-4). The Ausschüttuπgs count indicator 8, 51 and the remaining amount display 4, 5, 10 are axially aligned or at least substantially arranged in an axial alignment, so that conveniently and clearly at a glance, the count of the payout count indicator 8, 51 and the still available residual quantity, here directly at the level of the container 3, can be read. By comparing the displayed residual amount and the indicated number of dispensing operations, an additional possibility of controlling the co-occurrence of the setting and dispensing of the dose and, accordingly, the therapy is provided.

FIG. 16 shows a direction of a third exemplary embodiment with a payout counter of a second exemplary embodiment. The device of the third embodiment is derived from the device of the first embodiment. It has, in addition to the first exemplary embodiment, a payout counter according to a second exemplary embodiment. Apart from this supplement, it is identical to the device of the first embodiment. The payout counter of the second exemplary embodiment comprises a counting element 60, which is moved in a counting direction, which points transversely to the advancing direction V, on each delivery stroke of the output member 14 by one counting stroke in each case. The counting member 60 is rotatable about the longitudinal axis L, the counting stroke is a rotary stroke. The Zählgfied 60 is formed as ZäliJring. It has on an outer peripheral surface on a counter scale 61, which consists of in the counting direction, ie in the circumferential direction, consecutively arranged numbers beginning with "0" in consecutive numbering. In Figure 16, the device enters a selection state before a first dose selection.

FIG. 17 shows the device of FIG. 16 in a side view of the distribution counter display 8, 61 of the second exemplary embodiment, which is formed by means of the ejection counter. In Figure 17, the device is shown after ten dumps. Correspondingly, in the viewing window 8 of the payout count display 8, 61, the count "10" appears on the counter scale 61. Like the devices of FIGS. 14 and 15, the device has a second remainder indication 4, 5, 10. The device of FIG. 17 is modified relative to the device of FIG. 16 with respect to the residual quantity indicator 4, 5, 10. The modification is that the remaining amount display 4, 5, 10 is arranged axially not as in Figure 16 in the extension of the first remaining amount display 7, 42, but in the extension of the payout count display 8, 61, as is preferred. The remaining quantity display 4, 5, 10 corresponds again to the first exemplary embodiment and is arranged relative to the distribution Zählanzeäge 8, 61 as in the apparatus of Figures 14 and 15, so that the two displays can be conveniently and safely read at a glance, d , H. without having to rotate the device between readings.

In Figures 18 and 19, the payout counter of Figure 16 is shown enlarged in two different states. The payout counter differs from the payout counter of Figures 5 to 15 not only in the Zählung of the counting member 60, but also in terms of the reverse ierglieds, which is formed in this exemplary embodiment of the payout counter 60 from the counting member. The counting member 60 is accordingly not only movable in the counting direction, but also in the direction of rever gieren lifting movement, which also coincides in the second exemplary embodiment of the AusschütUmgszähler with the advancing direction V. The counting member 60 leads comparable to the reversing member 56 of the first embodiment, a hub in the Voitriebsrichtung V and a reversing stroke of equal length against the advancing direction V and is moved on in this reversing stroke movement in the Zähllichtung. A first part of each Zählhubs is by the Reversierhub, ie the stroke against the Voitriebsrichtung V, and the remaining second part of each Zählhubs is effected by the stroke in the advancing direction V The Hub in the advancing direction V causes the Abtiiebsglied 14 at each Ausschütthub by with its front end, by way of example the flange 16, in a final phase of the respective Ausschütthubs in a stop contact against a stop 64 of the counting member 60 passes and presses this in stop contact in the Voitriebsrichtung V. The output member 14 is counteracting a return member 69 angeotdnet, which is preferably also in the Ausschültungszähler of the second embodiment as a mechanical Fedei, for example, again as a compression spring formed, the return member 69 acts on the counting member 60 with a force acting against the advancing direction V spring force.

FIG. 18 shows the payout counter in the same state as FIG. 16. The counting member 60 assumes a front end position with respect to the advancing direction V. "If the drive member 20 is moved against the advancing direction V after the dose has been selected, the output member 14 is moved to the release position Coupled 18, 22 taken, leads the counter 60 under the spring force of the return member 69 automatically the Reversierhub to a predetermined by stop contact rear end position. This state of the payout counter with the counting member 60 located in the rear end position is shown in FIG. 19.

The counting member 60 has first engaging elements 62, which come in the hub in the propulsion, V direction with first guide elements 66 in a coupling engagement, which converts the lifting movement of the counting member 60 in a rotary stroke movement in the counting direction. Further, the counting member 60 has second EiπgrifTselemente 63, which arrive at the Reversieihub with second guide elements 67 in a second coupling engagement, dei the stroke movement against the advancing direction V also converts into a rotary stroke in the counting direction. A complete Zählhub, in which the counting member 60 is moved by a Zählei in the Toughening, is composed of the two partial rotation strokes together. The Engagement elements 62 and the cooperating guide elements 66 have zui Vortriebsrichlung V and inclined to the toughening engaging silhouettes with which they slide in Koppeleingiiff aneinandei and thereby convert the conversion of directed into the Vortiiebsiichtung V relative movement of the counting member 60 in the Diehhub in the toughening. Similarly, the engagement members 63 and the cooperating sensing elements 67 are inclined with respect to both the advancing direction V and the toughening direction to similarly convert the reversing stroke of the counting member 60 into the other rotational stroke portion of the counting stroke.

In the exemplary embodiment, the engaging elements 62 and 63 and the guide elements 66 and 61 are each formed by an arrow toothing, the engaging elements 62 and 63 are gefönnt directly on the counting member 60, for example in the manner of a ring gear, d h. The guide elements 66 and 67 are each congruent in shape, the sensing elements 66 on the housing plate 12 and the guide elements 67 on a sensing insert 68, which is exemplarily formed as a guide ring. The Fühiungseinsatz 68 is supported against the Voitiiebsrichtung V on the housing part 2, by way of example by closing contact Anschlim- By function, it could be molded with the housing part 2 in one piece, the separate molding has manufacturing reasons

The reversing stroke of the counting member 60 is limited to stops, in the advancing direction V by a stop of the housing part 2, for example a tooth base 66a of the guide elements 66 or preferably by the stop 2b for the output member 14, and against the driving direction V duich a stop of the guide insert 68th For example, a tooth root 67a of the guide elements 67. The counting member 60 is movable in toggling between locking positions, which are spaced apart in the counting direction of the length of the respective partial rotation stroke. In the detent positions it is felt in and against the Vortiiebsiichtung V. By way of example, the latching engagement is formed in the region of the outer circumference of the counting member 60 at 65.

Fig. 20 shows a device with a conveyor and a remainder quantity display substantially corresponding to those of the first embodiment (Figs. 1-4). The Abtiiebsglied 14 and the drive member 20 are coupled together by means of a coupling which is formed in the same manner as in the former embodiment with a coupling element 18 and coupling counter-elements 22. In FIG. 20, only the coupling element 8 can be seen, the coupling counter-elements 22 are in coupling engagement with the coupling element 18 outside the longitudinal sectional plane of FIG. 20. A difference from the first embodiment is that the drive element 20 bears in sliding contact with the outer circumference of the driven element 14 which makes the device slimmer. The residual amount display 7, 42 differs from the first exemplary embodiment only in that the residual quantity dose scale 42 is arranged in the region of the rear end of the residual quantity member 40, while in the first exemplary embodiment it is located in the front region.

In contrast to the first embodiment, however, the residual quantity member 40 for the payout meter of the third exemplary embodiment fulfills the function of a stop limiting the reversing stroke movement of the reversing member 56. The remainder member 40 itself is only rotatable about the longitudinal axis L as in the first embodiment, but axially immovable relative to the housing 1, 2. It forms with a front end face a stopper 40a, which tends the Reversierhub the Reversierglieds 56 against the Vortiiebsrichtung V. The stroke in the advancing direction V ends the Anschlagkontakl the output member 14 against the stop 2b.

The counting member 50 substantially corresponds to the counting member 50 of the first embodiment (Figures 1 1-13), so that reference is made to the statements there. It is like the first embodiment elongated rod-shaped. It has over its entire length or at least over a larger part of its axial length in cross-section the shape of an arc segment, preferably circular arc segment, as in the first embodiment It also protrudes again into a gap which remains free between the housing part 1 and the container 3. In the third exemplary embodiment, however, such a space is not circulating around the container 3 free, but the housing part 1 in the region of the receptacle for creating the gap for the counter member 50 in cross-section oval shaped, for example elliptical or pear-shaped. A viewing window on the counter scale 51 of the counter 50 is formed in the housing part 1 at 8. It can be a Durchbiuch oline odei act with transparent Veischließelement. Alternatively, the viewing window can be created by means of 2K injection molding technology, which also applies to the other examples.

The ReversieigÜed 56 is also derived from the first Ausfüllungungsbeispiel for the Ausschüttungszählei, in contrast, it surrounds the piston rod IL It is revcrsierend liftable from the housing 1, 2 linearly out. The linear guide of the housing 1, 2 projects centrally into the Reveisierglied 56. The return member 59 is again formed by a mechanical compression spring, which also surrounds the piston rod 1 1 in the third Ausfühiungsbeispiet the distribution meter. The resetting member 59 is accordingly significantly larger than in the first embodiment ^. The size of the reversing member 56 and the return member 59 facilitate removal and assembly compared with the first embodiment of the payout counter, and the design of the return member 59 with respect to its spring characteristic and the interpretation of the Reversieiglieds 56 in view of the elastic compliance of its engagement counter-element 57 and its axial guidance.

Reference numerals:

1 housing part, residual quantity element

2 housing part, residual quantity element

2a withdrawal protection

2b beating stop

2c stop (optional)

2d stop

2e guide, mount

3 container

4 Reshneπgeπanzeige, viewing window

5 dose scale

6 dose display, viewing window

7 Remaining amount display, inspection window

8 Distribution display, inspection window

9 passage

10 pistons

1 1 piston rod

12 rows of teeth

13 residue stop

14 output member, first conveyor member

14a remainder counter-attack

15 drivers

16 flange

17 Metering counter stop, engagement element

18 coupling element

19 end part

20 Anti-member, second conveyor member

21 stop, shoulder

21a shoulder

21b shoulder

22 coupling counter element 23 actuating part

24 engagement element

25 dosing member

26 dose stop

27 entrance counter-element

28 profiling

29 shoulder

30 Antriebfedei

31 equalization fund

32-39 -

40 remainder member

40a stop

41 guiding curve

42 Residual Dosage Scale

43 viewing window

44 remainder member

45 Residual Dosage Scale

46-49 -

50 counter

51 counter scale

52 locking element

53 recess

54 locking counter element

55 input elements

56 Reversing member

56a stop

57 Entrance counter element

57a stop

58 recess

59 Residual member

60 counter

61 ZählerskaYes 62 engagement element

63 input menu

64 counter-attack

65 locking element 66 guide element

66a stop (optional)

67 sensing element

67a stop

68 Guide insert 69 Reset link

L longitudinal axis V propulsion direction

Claims

claims

1, distribution device with discharge meter, the device comprising: a) a housing (1, 2) with a receptacle for a product to be administered, b) a piston rod (1 1), which is movable to dispense a product dose in a propulsion direction (V) , c) a conveyor member (14) which can perform a Ausschütthub in the advancing direction (V) and a Aufziehhub against the advancing direction (V), d) wherein the conveying member (14) with the piston rod (1 1) is coupled so that it executes at least a part of the winding stroke relative to the piston rod (11) and the exhaust stroke controls the movement of the piston rod (11) in the

Vohttήebstichtung (V) causes, e) and a payout counter for counting the executed distributions with a counting direction movable in a counting member (50; 60), which is coupled to the conveying member (14) such that the execution of a Ausschüttthubs one counting stroke of the counting member (50; 60) in the counting direction.

2. Administration device according to the preceding claim, comprising

(i) either in addition to or provided by the counting member (50)

Reversing member (56, 60), (ii) which can execute a stroke in a first direction (V) and a reversing stroke in an opposite second direction (-V), preferably in and against the advancing direction (V),

(iii) and coupled to the conveyor member (14) such that one of lift-up stroke and delivery stroke of the conveyor member (14) effects the stroke of the reverser (56; 60) in the first direction (V) and the other of lift-up stroke and delivery stroke the

Reversing stroke permits or effects.

3, a processing device according to the preceding claim, further comprising a return member (59; 69) acting on the reversing member (56; 60) in the second direction (-V).

4. Veiabreichungsvoπϊchtung according to one of the two preceding claims, characterized in that the reversing member (56; 60) in one of the directions of its Hubbeweglichkeit against a stop (2d; 67a, 40a) is movable and preferably also the lifting movement in the other of the directions is limited by abutment contact, either the conveyor member (14) or the Reservierglieds (56, 60) against a stop (2b).

5, administering device according to one of the three preceding claims and at least one of the following features: the reversing member (56; 60) is movable in and against the advancing direction (V), and the conveying member (14) in the one from Aufziehhub and Ausschütthub in one Stop contact, in which it entrains the reversing member (56; 60), wherein the stopper contact preferably between the Föiderglied (14) and the reversing member (56; 60) consists; the conveyor member (14) has a stop (16) in the one from Aufziehhub and Ausschütthub in a stop contact with a

Counter stop (56a; 64) of the reversing member (56; 60) and to the counter-stop (56a; 64) in the iste direction (V) has a distance, so that the conveying member (14) only a part of the one Aufziehhub and Ausschütthub together with the reversing member (56; 60) executes.

6. administering device according to one of the four preceding claims, characterized in that the reversing member (56) in addition to the counting member (50) and coupled to the counting member (50) is coupled so that the Revetsierglied (56) the Reversierhub relative to the counting member (50) and carries the counting member (50) at the stroke in the first direction (V).

7. administering device according to the preceding claim, characterized in that one of counting member (50) and reversing member (56) in the counting direction (V) extended series of engaging elements (55), the first direction of the lifting movement of the Reversieiglieds (56) Counting direction (V) is and the Reveisierglied (56) at the hub in the first direction (V) in an engagement of a

Entrigegengegenelemeπts (57) in the series of engaging elements (55) the counting member (50) in the counting direction (V) entrained, voizugsweise the reversing member (56) itself forms the engagement counter-member (57).

8. Veiabreichungsvoπϊchtung according to one of the two voi forthcoming Anspiüche and at least one of the following features: the counting member (50) is in the counting direction (V) elongated stabföimig; the counting member (50) projects in the counting direction (V) into the receptacle formed by the housing (1, 2) for the Piodukt, preferably in an iadial between the housing (1, 2) and a receptacle (3) accommodated in the receptacle. remaining gap; the counting member (50) is linearly guided in the counting direction (V), wherein preferably the housing (1, 2) forms a linear guide (2e) for the counting member (50).

9, administering voi direction according to Anspiüche 2 to 5, characterized in that (i) the reversing member (60) in and against the Voitriebsrichtung (V) is movable, preferably the counting member (60) forms, (ii) the counting direction across pointing to the direction of advance (V),

(ii) the movement of the reversing member (60) against the advancing direction (V) in a first guide engagement (62, 66) of a first guide element (66) and a first engagement element (62) forms part of the counting stroke

(iv) and the movement of the reversing member (60) in the advancing direction (V) in a second guide engagement (63, 67) of a second guide member (67) and a second Eingiiffselements (63) causes the remaining part of the Zählhubs.

10. Administration device according to one of the preceding claims and at least one of the following features: the counting member (50; 60) is movable between locking positions (54; 65) in the counting direction; the counting member (60) is movable in the counting direction between detent positions (65), the counting direction is transverse to the advancing direction (V) and the counting member (60) is movable in the detent positions in and against the advancing direction (V),

The device according to any one of the preceding claims and at least one of the following features: the device comprises a marker (8), preferably a viewing window, and the counting member (50; 60) is provided with a counter scale (51; 61) whose position changes on execution of a counting stroke relative to the marker '(8), so that the marker (8) on the counter scale (51; 61) indicates the number of distributions and with the counter scale (51; 61) a distribution counter display (8,51 ; 8, 61); one of housing (1, 2) and counter (50; 60) is provided with a counter scale (51; 61) and the other has a marker (8), preferably a viewing window, for the counter scale (51; and the position that the marker (8) and the counter scale (51; 61) adopt relative to each other changes upon execution of the counting stroke so that the marker (8) on the counting scale (51; 61) indicates the number of dispenses and with the counter scale (51; 61) one

Distribution meter display (8, 51, 8, 61) forms.

12. A delivery device according to the preceding claim, further comprising a remaining quantity indicator (4, 5, 10, 7, 42) for displaying a still distributable residual amount of the product, wherein the distribution counter display (8, 51, 8, 61) and the

Residual amount display (4, 5, 10, 7, 42) either in Umlangsrichtung about the longitudinal axis (L) side by side or preferably along a longitudinal axis (L) on the same longitudinal side of the housing (1, 2) and thus without rotation of the housing (1, 2) are arranged simultaneously visible.

13, administering device according to one of the preceding claims, characterized in that the formation of a residual quantity indicator (4, 5, 10, 7, 42) for displaying a still distributable residual amount of the product

(i) the housing (1, 2) is transparent in the region of the receptacle, preferably has a viewing window (4),

(ii) a residual quantity dose scale (5) extends in the region of the direction of advance (V) (iii) and in the transparent region the position of a product requiring piston

(10) relative to the residual quantity dose scale (5) is recognizable, (iv) so that the piston (10) for the residual dose scale (5) forms a marker on the residual dose scale (5) the still distributable residual amount displays.

14. The delivery device of any one of the preceding claims, further comprising: (i) a dosing member (25) adapted to adjust the dose of product relative to the housing

(1, 2) is adjustable in different selection positions,

(ii) wherein the output member (14) can perform the Aufziehhub into a dose position predetermined by the dosing member (25) and the dispensing stroke from the dose position, (iii) a first residual quantity member (40) coupled to the output member (14) in that the winding stroke causes a rotational movement of the first remainder quantity member (40) about a longitudinal axis (L) parallel to the advancing direction (V) and the dispensing stroke causes a movement in the reverse direction of rotation,

(iv) and a second residual quantity member (2) relative to which the first remainder quantity (40) performs the rotational movements ^' ,

(v) wherein one (40) of the residual quantity members has a dose scale (42) and from the position occupied by the other (2) of the residual quantity members relative to the dose scale (42), the still distributable residual amount of the product is readable, (vi) and wherein preferably the first residual quantity member (40) forms a lifting movement of the Reversieiglieds (56) according to claim 2 limiting stop (40a).

15. administering device according to any one of the preceding claims, characterized in that the piston rod (11) has an axially extended Zahrueϊhe (12) and the conveying member (14) with the piston rod (1 1) duich a tooth engagement is coupled, in which a driver (15) and the row of teeth (32) are located to move the piston rod at the Ausschütthub in the advancing direction (V), wherein the

Driver (15) axially non-movably connected to the conveying member (14), preferably on the conveying member (14) is formed.

16. Administration device according to one of the preceding claims, comprising (i) an output member (14),

(Ii) a drive member (20) which is movable by means of a axiaieπ stroke from a Aussehüttpositioπ into a release position and from this back into the discharge position,

(iii) the drive member (20) performs a longer stroke than the output member (14), preferably over at least a portion of its stroke independent of that

Output member (14) is axially movable,

(iv) and a coupling (18, 22; 31) which couples the output member (14) to the drive member (20) such that the stroke of the drive member (20) in the release position the Aufziehhub and the stroke of the drive member (20) in the discharge position causes the delivery stroke of the output member (14),

(V) wherein one of the output member (14) and Anüϊebsglied (20) forms the conveying member.