DE102009060967A1 - Plaster system for adjustment of e.g. cannula, on skin of patient, has free plaster section dimensioned and formed such that plaster sections are section-wise connected with region of recess in unfolded condition - Google Patents

Abstract

The system (1) has a plaster base element (1c) provided with two plaster sections (1a, 1b) that are connected with each other by a bar-like connecting section (7) such that the base element comprises a recess (6) between the plaster sections. The plaster base element comprises a free foldable plaster section connected with base element such that the free plaster section is transferable from a folded condition into an unfolded condition. The free plaster section is dimensioned and formed such that the plaster sections are section-wise connected with a region of recess in the unfolded condition. The system exhibits a bar-like connecting element with a protective plastic film.

Description

The present invention relates to a plaster system for fixing a venous or arterial access to the skin of a patient, wherein the plaster system has a plaster base element with two sections which are connected in one of their areas via a web-like connecting portion such that the pavement base element between the two patch sections has at least one indentation, in the region of which the two patch portions are not connected to each other, and wherein the plaster base element has a first surface with an adhesive surface over which the plaster system is fixed on the skin, and a second surface facing away from the adhesive surface.

Such plaster systems are known in the art and are used in particular for the fixation of cannulas or catheters, that is to say of probes via which access to blood vessels is to be created. Since such access is to be used in many interventions over a longer period on the patient, for example, to supply medication or blood or to take blood, it is necessary to fix this access stable and effective on the patient to accidental slipping or slipping to avoid access from the blood vessel.

A plaster system of the type mentioned is, for example. From the German utility model 9106513U known. It describes an adhesive bandage made of a backing material that has a self-adhesive layer on its underside and a removable protective cover for this self-adhesive layer. The adhesive bandage also has an incision which partially separates it. The dividing line of the protective cover should thereby parallel to the incision, but offset from this, so that better handling should be achieved.

Furthermore, from the DE 10 2007 038 993 A1 a Fixierpflaster known, which consists of a multi-layered carrier material, which in turn has a first carrier layer, a second carrier layer and an adhesive layer. The fixing plaster consists of a base member and two associated with this fixing strips, which are formed by a cut in the base element.

Although numerous different embodiments of the documents cited above are known in the prior art, they all have the disadvantage that rapid and effective fixing of accesses can often not be achieved. Especially in handling, the fixing plasters known in the prior art prove to be problematic because - especially when protective gloves are worn - a removal of the protective films from the plasters is difficult. Their adhesive sides often stick together when they are peeled off with the gloves or the fingers of the operator, so that the danger exists that the fixing plaster - and thus also the access - will slip or dislocate.

Therefore, there is still a great need in the art for fixatives which are easy to handle, quick to apply and effective in fixation. Against this background, it is an object of the present invention to provide an alternative fixation plaster, with which the disadvantages of the prior art can be overcome.

According to the invention, this object is achieved by a further development of the above-mentioned plaster system, in which the plaster base element additionally has on at least one of the plaster part sections a free foldable plaster section with a self-adhesive surface which is connected to the plaster base element in such a way that it reaches a first folded state, in which the access is received in the indentation, in a second unfolded state can be transferred, wherein the patch portion is dimensioned and formed such that the patch portions are connected in the unfolded state of the foldable patch section in sections over the unfolded patch portion in the region of the indentation.

The problem underlying the invention is thereby completely solved. By additionally provided on the pavement system according to the invention foldable paving element or section is achieved that the access, which is introduced into the recess provided in the paving indentation, formed by a folding out of the patch portion and thereby caused connecting the patch sections, in the middle of the indentation can be fixed safely and quickly, without the need for additional fixation for access. At the same time, the puncture site of the access is covered and this is securely fixed to the skin of the patient. For fixation of access to a blood vessel of a patient thus projecting from the skin surface access is introduced into the recess of the plaster system according to the invention and placed the foldable patch portion with its adhesive surface over the indentation that a kind of second bridge is placed over this, whereby the two patch sections are connected to each other, and the access is thus fixed between the web-like connecting portion and the unfolded and bonded foldable patch portion. This will ensures that the access even in a further fixing and handling of the plaster system is securely held in the space formed by the web-like connecting portion, the two patch portions and the foldable patch portion.

Advantageously, the plastering system is thereby guided and fixed in the "stitching direction" of the laid access via the access, whereby a displacement of the access in or even out of the blood vessel is avoided. The plaster systems known in the art are usually introduced contrary to the stitch direction due to their construction, which often has the disadvantage that the access is thereby displaced or slipped unintentionally. This is advantageously avoided with the plaster system according to the invention.

"Accesses" or "access" is understood to mean any cannula or catheter or tube which is used for introduction or removal of blood and blood products and / or liquids, in particular liquids with pharmaceutical ingredients, for intravenous or arterial administration, or the serve as a probe for example, the blood gas analysis.

In the present case, "plaster system" is understood to mean any one-part or multi-part plaster or dressing or fixing element which as a rule has an adhesive surface with which the access to the patient is fixed.

The "adhesive" or "self-adhesive" surface of the plaster base element, the patch portions and the foldable patch portion in the present case comprises a self-adhesive, which is preferably tolerated by the skin and moisture, d. H. which does not lose its adhesive power even after contact with fluids and liquids such as saliva or sweat.

The foldable patch portion is therefore formed as a second web-like connection, however, in contrast to the web-like connecting portion connecting the two patch portions has a releasable end which can be placed over the indentation. It will be appreciated that, depending on the application and need, another or more such foldable patch sections may / may be provided via which further means, either part of the access or attached separately therefrom, may also be fixed to the patient.

In a preferred embodiment of the plaster system, it is provided that the foldable plaster portion is an integral portion of the plaster base element. This embodiment has the advantage that the foldable pavement section forms a structural unit with the pavement base element and is formed so to speak in one piece with it.

In another embodiment, it is preferred that the foldable patch portion is a first portion of another paving member fixedly secured via a second portion on at least one of the patch portions of the patch base member, between the second portion fixed to the patch portion and the first deployable portion formed fold, so the fold, facing the indentation. In this embodiment, a kind of further plaster in the form of a folding plaster is provided on at least one of the subsections of the plaster base element, wherein the fold of the folding plaster facing the recess and wherein a part of the folding plaster is fixedly mounted on the patch portion and the other part freely on the Fold unfolded and can be glued on or with the other section. This embodiment has the advantage that, if necessary, the folding plaster can be formed from a different or the same material as the pavement base element.

It can also be provided in this embodiment that the plastering system has a plurality of foldable patch sections and thus folding plasters.

In a further development of the mentioned embodiments, it is preferred if the plaster base element comprising the patch section sections and the web-like connecting section between them and the foldable patch section have at least one peelable protective film on their self-adhesive surface before fixing the access to the patient, with particular preference being given to this when the patch portions of the web-like connecting portion and the foldable patch portion separately formed and separately peelable protective films that cover the respective adhesive surfaces of the sections.

This embodiment has the advantage that the protective films of the individual sections of the plaster system can each be removed separately so that the individual sections of the plaster system can be fixed one after the other on the patient. This offers the advantage that the individual sections can possibly be fixed even more flexibly on the patient.

It is preferred in a development of the plaster system according to the invention, when the peelable protective films of the patch portions and the web-like connecting portion are dimensioned such that they protrude beyond the outer edge of the plaster base element.

This embodiment has the advantage that, by means of the protective films projecting beyond the outer edge of the plaster base element, it is not necessary to lift the once placed plaster system; the plaster system can thereby be handled easily, wherein a contact of the operator with the adhesive surfaces is simultaneously avoided, and the plaster system can be easily and quickly glued to the puncture site and the access thereby fixed. The protruding over the edges of the plaster base element protective film sections therefore form Abziehgriffe over which the protective films can be handled and quickly removed. Furthermore, the plaster system offers the advantage of infection protection, since the plaster system according to the invention for fixing on the patient does not need to be raised and because contact with the adhesive surfaces is avoided by the protruding protective films. In the conventional patch systems known in the art, it is necessary to raise the patches for fixation, whereby a contact with the adhesive surfaces - and thus also with the puncture site and its environment is done, which is a risk of infection for the person laying the access , The plaster system of the invention advantageously avoids this risk of infection.

In a further embodiment, it is provided that the protective film of the foldable plaster section is dimensioned such that it projects beyond the surface of the foldable plaster section, preferably in the direction of the indentation. As a result, this section can also be glued selectively and separately, wherein the handling of this section by the indentation, d. H. To Knickfalte out protruding Abziehgriff is facilitated. It is understood, however, that the protective film for the adhesive surface of the foldable patch portion may also project beyond it on one of its other sides or in addition to the fold side, as this may be desirable in certain applications.

The length at which the protective films protrude beyond the respective edges of the sections may vary; however, for a secure grip, it is preferred that they protrude beyond the respective margins / sections by at least about 0.2 cm, 0.5 cm, 08 cm, or at least 1 cm or more, since with this length there is a tangible one Handling section is formed. It will be clear to those skilled in the art that deviations from the stated dimensions are also possible, but they are still within the scope of protection, since the purpose of the invention can still be achieved with deviations from the stated dimensions.

In the present case, "protective film" is understood to mean any material which is suitable for being applied detachably or detachably on an adhesive / self-adhesive surface in order to protect it against premature or undesired coming into contact with a surface. The protective film may in this case comprise or consist of any material suitable for this purpose, and represents an adhesive-repellent material, such as, for example, silicone-coated films or siliconized paper.

According to a further embodiment, the plaster system may also have one or more wound dressings, which are dimensioned on the first surface of the plaster base element in such a way that adhesive surfaces remain free on the first surface, preferably on the peripheral edge of the plaster base element. The wound dressing is preferably provided in the foldable patch section.

In this case, "wound dressing" is understood to mean any non-woven material, preferably fiber material, which can preferably absorb fluids and can be brought into contact with wounds or punctures or the like. The material is preferably kind to the skin. Suitable materials for the wound dressing are, for example, nonwoven fabrics of polyester fibers, polyethylene fibers, polypropylene fibers, polyamide fibers, viscose fibers, or mixtures thereof. The wound dressing can also be loaded, for example, with anti-inflammatory agents.

The plaster system is preferably made of a skin-compatible, tear-resistant, thin, elastic, preferably air and water vapor permeable material, such as. From a corresponding film, fabric or fleece. Suitable materials are known in the art, for example, polyurethane foils of elastic, thermoplastic polyurethanes, and may be transparent or opaque. The skilled person will be clear in this context which materials or material mixtures must and can be used to ensure the operation of the plaster system of the invention.

It is understood that the presently mentioned and hereinafter to be explained features not only in the particular combination given, but also in isolation or in other combinations can be used without departing from the scope of the present invention.

Further advantages will become apparent from the following description and the accompanying drawings. Show it:

1 : A schematic representation of an embodiment of a plaster system according to the invention in a plan view;

2 : a schematic representation of the embodiment of 1 in a view from below;

3 FIG. 2: a schematic representation of the same embodiment as in FIGS 1 and 2 in a view from behind;

4 FIG. 2: a schematic representation of the same embodiment as in FIGS 1 to 3 in a side view;

5 a schematic representation of an exemplary intravenous access in supervision;

6 : a schematic representation of one in the indentation in the 1 to 4 embodiment shown introduced in supervision;

7 : a schematic representation of the in 6 shown arrangement in view from behind.

8th : a schematic representation of the in the 6 and 7 shown arrangement in rear view, wherein the protective film of the foldable patch section is removed;

9 : a schematic representation of the in 8th shown arrangement in plan view, thus after pasting the indentation by the foldable patch section;

10 : a schematic representation of the in 8th and 9 shown arrangement from the rear, wherein the removal of the protective films of the patch portions is indicated;

11 : a schematic representation of the in the 8th to 10 shown arrangement in plan view, wherein the protective films of the patch portions are removed and the removal of the protective film of the web-like connecting portion is indicated;

12 : a schematic representation of the in the 8th to 11 shown arrangement in plan view, with all the protective films are removed; and

13 a schematic representation of the in 12 shown state in view from behind.

In 1 is with 1 Overall, an embodiment of a plaster system according to the invention shown with two patch sections 1a and 1b and a plaster base element 1c , The patch parts 1a and 1b are partially, in the example shown in the figures in the front area to over the average width of the plaster base element 1c , through a recess 6 separated from each other and are in a rear portion by a web-like connecting portion 7 connected with each other. In 1 are also partially protective films 3 shown pointing to the right and left over the outer edge of the pavement primitive 1c protrude. In the 1 shown embodiment of the plaster system according to the invention further comprises a foldable patch section 2 up in the in 1 shown representation with a protective film 4 covered in the direction of the indentation 6 , and thus in the direction of the fold of the pavement section 2 , survives. Further, the at the rear edge of the plaster base element 1c protruding protective film 5 the web-like connecting element 7 shown.

2 shows the in 1 shown embodiment from below, ie with a view on the covering the adhesive surface of the plaster base element protective films 3 and 5 , As also described in the following 3 to 13 are in 2 the same reference numerals have been used to designate like features.

The indentation 6 in this case has a length L _E , which is dimensioned such that a in the indentation 6 introduced access 8th (see, for example. 5 ) with his cap 12 to the web-like connecting portion 7 encounters (see, for example. 6 ), and at the same time the puncture site 13 from the foldable pavement section 2 can be covered, as well as the wings 10 of access 8th from the patch sections 1a and 1b ,

3 shows the view of the embodiment of the 1 and 2 in a lateral view, it can be seen here that the foldable pavement section 2 in the embodiment shown in this figure, a kind of additional plaster on the plaster base element 1c , or more precisely on the patch part section 1a represents which with a part 2a stuck on the patch section 1a attached, and the free part 2 B folded so that the fold 2c to the dent 6 points. On this free, folded part, or on its upwardly facing surface is the protective film 4 intended.

Although in the illustrated embodiment, the foldable pavement section 2 as an additional paving element - ie as a folding plaster - on the pavement base element 1c is attached, it may also be provided in other embodiments, that the foldable pavement section 2 an integral part of the plaster base element 1c or a wing part of the patch part section 1a or 1b represents, which can be unfolded accordingly.

The size of the foldable patch portion depends on the size of the space to be formed, which after unfolding the foldable patch section 2 between this, the web-like connecting portion 7 and the two inner edges of the patch sections 1a , and 1b in the dent 6 is formed. At least the width B _{fP of} the foldable pavement section may 2 (please refer 9 ) be no greater than the length L _{E of} the indentation (see 1 ); the length L _{fP of} the foldable pavement section 2 (please refer 9 ) is sized so that, depending on the fixation of the foldable patch section 2 on the patch section 1a or 1b , the dent 6 spans.

In 4 is a side view of the in the 1 to 3 shown embodiments, here for reasons of clarity, the protective films 3 the patch portions have been omitted.

In 5 is an example of an intravenous access 8th shown with plastic wings 10 which are stored on the skin of the patient. The reference number 12 denotes a cap for an inlet over which liquids can be injected, and with 13 is the puncture site of access 8th or the cannula shown.

About this access 8th will, as in 6 shown in plan view, the plaster system according to the invention 1 in its indentation 6 pushed. The plaster system 1 is thereby advanced until the access 8th with his cap 12 to the web-like connecting portion 7 pushes, as by the arrow 15 indicated.

7 shows this position in a lateral view, ie before removing the protective films 3 , In 7 For reasons of clarity, the peel-off film of the web is not shown. In 7 is also with 11 the connection for the infusion line (Luer-Lock).

8th now shows the first step of the sequence of fixation of access 8th : As by the arrow 16 indicated, the protective film of the foldable pavement section was deducted from the self-adhesive surface, and thus the foldable patch section on the indentation 6 and thus on the patch section 1b guided and glued over its self-adhesive surface.

In 9 is a view shown after the in 8th described step is completed, and the puncture site 13 with the foldable plaster section 2 covered or glued.

Following this, as in 10 shown the protective films 3 the patch sections 1a and 1b withdrawn to the right and left outside, by gripping the by the over the edges of the plaster base element protruding peel off the protective film; see the arrows 17 and 18 , By removing the protective films of the patch sections 1a and 1b may be the self-adhesive surface of the plaster base element 1c be in contact with the skin of the patient and glued to it. Advantageously, a lifting of the plaster system for this purpose is not necessary, just because the protective films have Abziehgriffe that are formed by the survival of the protective film over the edge of the plaster system.

In a next step, the protective film 5 the web-like connecting portion 7 withdrawn to the rear, as indicated by the arrow 19 indicated, and the self-adhesive surface of this section also connected to the skin of the patient (see 11 ).

The final position of the glued plaster system and the fixed access 8th is in 12 from above and in 13 shown from behind.

It is understood that the size of the plaster system as a whole, as well as its constituent patch sections and foldable patch section can be provided in coordination with each particular operations and requirements, especially with regard to the access to be fixed. It will be clear to the person skilled in the art how these specific requirements must be taken into account when determining the size of the plaster system. Furthermore, in this context, the materials to be used in each case will be known to him, which can also be matched with regard to the fixation purpose and the patient.

It is understood that the above-mentioned embodiment is for illustrative purposes only and not restrictive, and within the scope of the appended claims numerous other alternative embodiments are conceivable, which fall within the scope of the claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 9106513 U [0003]
• DE 102007038993 A1 [0004]

Claims (10)

Plaster system ( 1 ) for fixing a venous or arterial access ( 8th ) on the skin of a patient, wherein the plaster system ( 1 ) a pavement primitive ( 1c ) with two sections ( 1a ; 1b ), which in one of their areas via a web-like connecting portion ( 7 ) are connected together in such a way that the pavement base element ( 1c ) between the two patch sections ( 1a ; 1b ) at least one indentation ( 6 ), in whose area the two patch sections ( 3 ; 3a ) are not interconnected, and wherein the pavement primitive ( 1c ) has a first surface with an adhesive surface, by means of which the plaster system is fixed on the skin, and a second surface facing away from the adhesive surface, characterized in that the plaster base element ( 1c ) on at least one of the patch sections ( 1 ; 1b ) a free foldable patch section ( 2a ) in such a way with the plaster base element ( 1c ) is connected by a first folded state in which the access ( 8th ) in the indentation ( 6 ), is convertible into a second unfolded state, wherein the patch section ( 2a ) is dimensioned and formed such that the patch sections ( 1a ; 1b ) in the unfolded state sections over the unfolded patch section ( 2a ) in the region of the indentation ( 6 ) are interconnected. Plaster system ( 1 ) according to claim 1, characterized in that the foldable pavement section ( 2a ) an integral portion of the pavement primitive ( 1c ). Plaster system ( 1 ) according to claim 1, characterized in that the foldable pavement section ( 2a ) a first part of another paving element ( 2 ), which via a second section on at least one of the patch sections ( 1a ; 1b ) of the plaster base element ( 1c ) is firmly fixed, wherein the between the on the patch portion ( 1a ; 1b ) fixed second portion and the first foldable portion formed fold of the indentation ( 6 ) is facing. Plaster system ( 1 ) according to one of the preceding claims, characterized in that it comprises a plurality of foldable plaster sections ( 2a ) having. Plaster system ( 1 ) according to one of the preceding claims, characterized in that the pavement base element ( 1c ) and the foldable pavement section ( 2a ) before fixing the access ( 8th ) each have on their adhesive surface at least one peelable protective film. Plaster system ( 1 ) according to claim 5, characterized in that the patch sections ( 1a ; 1b ), the web-like connecting section ( 7 ) and the foldable pavement section ( 2a ) on their adhesive surface each separate peelable protective films ( 3 ; 4 ; 5 ) exhibit. Plaster system ( 1 ) according to claim 6, characterized in that the peelable protective films ( 3 ; 5 ) of the patch sections ( 1a ; 1b ) and the web-like connecting portion ( 7 ) are dimensioned such that they protrude beyond the outer edge of the plaster base element. Plaster system ( 1 ) according to one of claims 5 to 7, characterized in that the protective film ( 5 ) of the foldable pavement section ( 2a ) is dimensioned such that it over the surface of the foldable patch section ( 2a ) in the direction of the indentation ( 6 protrudes). Plaster system ( 1 ) according to one of claims 7 or 8, characterized in that the protective films ( 3 ; 4 ; 5 ) protrude with at least approx. 1 cm. Plaster system ( 1 ) according to any one of the preceding claims, characterized in that it comprises a wound dressing which rests on the first surface of the plaster base element ( 1c ) is dimensioned such that adhesive surfaces remain free on the first surface.

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