CN212913329U - Endoscope injection needle frame and endoscope injection needle using same - Google Patents

Abstract

The utility model relates to an endoscope injection needle frame and applied endoscope syringe needle that has this needle frame, this endoscope injection needle frame uses with the cooperation of endoscope syringe needle, its characterized in that: the endoscope injection needle frame comprises a main body which can be held in the hand of a doctor and is used for fixing a syringe which can provide liquid medicine for the endoscope injection needle, a force application part for applying force to the fingers of the doctor and a transmission part, which can be directly triggered under the action of the force application part corresponding to the fingers when the doctor pushes the injector, so as to switch the endoscope injection needle to the needle inserting state, compared with the prior art, the utility model has the advantages that the endoscope injection needle frame is provided, the endoscope injection needle frame can facilitate a doctor to integrate an injector and an operation part which can remotely control the needle insertion and the needle withdrawal of an endoscope injection needle into a whole, when a doctor pushes the injector, the operating part connected with the operating part is triggered by the action of the force applied to the endoscope injection needle frame corresponding to the pulling of fingers, so that the endoscope injection needle can be easily switched to the needle inserting state.

Description

Endoscope injection needle frame and endoscope injection needle using same

Technical Field

The utility model relates to a syringe needle that inserts use in endoscope's pliers channel especially relates to the endoscope syringe needle frame that is fit for going out the needle operation of doctor one-hand remote control syringe needle.

Background

An endoscope is a tube equipped with light that can enter the stomach transorally or through other natural orifices. Since a lesion which cannot be displayed by X-ray can be seen by an endoscope, it is very useful for a doctor. For example, with the aid of an endoscopist, an ulcer or tumor in the digestive tract can be observed, and an optimal treatment plan can be developed accordingly. As an example of an endoscopic treatment instrument, japanese patent laying-open No. 2001-58006 (patent document 1) discloses an injection needle for injecting a medical fluid into an affected part or the like in a body cavity, in which an elongated insertion part insertable into an endoscope channel and an operation part connected to a proximal end part of the insertion part are provided. The insertion portion includes a double tube having an outer tube and an inner tube inserted into the outer tube so as to be movable forward and backward. The operation part performs an operation of advancing and retreating the inner and outer tubes. An endoscopic instrument such as an endoscopic injection needle or the like, and a double tube for an instrument, in which a hollow needle body is attached to a distal end portion of the inner tube, at least the inner tube and the outer tube of the double tube are made of different types of plastic materials, and the outer tube is made of a material harder than the inner tube: even when the treatment is performed in a state where the insertion portion inserted into the body is bent, the operability such as the needle withdrawing operation is good, and the treatment can be stably performed on the affected part.

However, the above-mentioned injection needle usually has only a simple injection function, and when in use, all the operations of needle insertion and needle withdrawal need to be completed by hand, and the whole process can not be controlled by the hand of the operator, which is laborious and brings inconvenience to the operation. The invention relates to a disposable remote injection needle used under an endoscope, which is a Chinese patent with the patent number ZL201210014952.X (with the publication number CN102551846A), and comprises a needle head, an inner tube, an outer tube and a shell, wherein the needle head is arranged at one end of the inner tube, the inner tube is arranged at the outer tube (the inner tube is connected with the shell), the disposable remote injection needle is characterized by also comprising an injection push rod, one end of the injection push rod extends into the shell and is in sliding connection with the shell, an elastic body is arranged in the shell and is connected with the injection push rod, when in use, a trigger is pressed down by a thumb or a forefinger, a locking plug is inserted into a locking socket and is automatically self-locked and positioned by matching of a check hook and an inverted rack, the needle head can be automatically retracted under the action of the elastic body by pressing a release button with one hand without being pulled back manually, the defect that the existing injection needle needs to be operated by two hands or, the trigger is pressed by a thumb or an index finger to enable the locking plug to be inserted into the locking socket, the needle head is in an extending state, the syringe connected to the tail end of the inner tube can be pushed, and liquid medicine is pushed.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide an endoscope needle holder which is convenient for doctors to control the needle-out operation of the injection needle more freely with one hand in view of the current situation of the prior art.

The second technical problem to be solved in the present invention is to provide an endoscope needle holder capable of better controlling the needle of the injection needle to be in the needle-out state and facilitating the operation of the syringe by the doctor.

The third technical problem to be solved by the present invention is to provide an endoscopic needle with the above endoscopic needle holder in view of the above current state of the art.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: this endoscope syringe needle frame, this endoscope syringe needle frame and endoscope syringe needle cooperation use, its characterized in that: the endoscope injection needle frame comprises:

a main body which can be held in a hand of a doctor and is used for fixing a syringe capable of supplying a liquid medicine to an endoscopic injection needle; the force application part is positioned at the lower part of the main body and is used for applying force to the fingers of a doctor; and

and the transmission part can be directly triggered under the action of applying force to the force application part corresponding to fingers when a doctor pushes the injector so as to switch the endoscope injection needle to a needle inserting state.

To solve the second technical problem, preferably, the transmission part includes:

the transmission rod is arranged along the direction in which the endoscopic injection needle is withdrawn, the front end of the transmission rod corresponding to the direction in which the endoscopic injection needle is withdrawn is provided with a fixing part capable of fixing and controlling an operation part for inserting and withdrawing the endoscopic injection needle, the rear end of the transmission rod corresponding to the direction opposite to the direction in which the needle is withdrawn is provided with a guide seat capable of limiting the transmission rod to move only in the direction of inserting or withdrawing the endoscopic injection needle, and the guide seat is arranged at the bottom of the main body;

and

and the elastic piece is arranged in the guide seat, so that the endoscope injection needle has the tendency of retracting to a needle withdrawing state.

Therefore, when a doctor pushes the injector, the transmission rod is directly driven to move backwards by the action of force application of the force application part corresponding to fingers, the operation part is driven to move backwards, so that the endoscopic injection needle is switched to an injection state, and after the injection of liquid medicine to a patient is completed, the endoscopic injection needle can automatically return to a needle withdrawing state under the action of the elastic piece, so that the injector is suitable for one-hand operation when the doctor controls the injection needle to be withdrawn.

In order to meet the requirement that the time for the doctor to complete the injection of the medical solution to the affected part is sometimes long, it is preferable that the endoscope injection needle further includes a stopper for stopping the transmission part when the transmission part is triggered and the endoscope injection needle is switched to the needle insertion state. Therefore, the endoscope injection needle can be kept in a long needle-out state under the action of the limiting piece.

Furthermore, the limiting part comprises a rear magnet embedded in the rear side wall of the guide seat and a front magnet arranged on the rod body of the transmission rod, the front magnet and the rear magnet are arranged at intervals, the polarities of the rear magnet and the front magnet are opposite, one end of the elastic part abuts against the rear magnet, the other end of the elastic part abuts against the front magnet, and the elastic part enables the rear magnet and the front magnet to always have a tendency of phase separation. When a doctor pushes the injector, the transmission rod is directly driven to move backwards under the action of furling applied to the force application part by corresponding fingers, then the operation part is driven to move backwards so as to switch the endoscopic injection needle to an injection state, at the moment, the elastic part of the transmission rod between the front magnet and the rear magnet is compressed to be in an energy storage state due to the attraction of the magnetism of the front magnet and the rear magnet, and at the moment, the transmission rod does not move so as to keep the endoscopic injection needle in the injection state.

In order to facilitate the finger of the doctor to apply force to the force application part, the force application part is preferably a first finger hole part which is positioned at the lower part of the transmission rod and through which the finger of the doctor can pass. When the doctor pushes the syringe, the index finger can pass through the first finger hole part, and when the index finger applies force to the first finger hole part to pull backwards, the thumb pushes the piston of the syringe forwards, so that the endoscope injection needle is switched to the needle insertion state to inject liquid medicine to a patient.

In order to facilitate the holding of the endoscope needle holder by the doctor's hand, the main body preferably comprises a grip or a ball for holding the hand and a second finger hole part arranged in front of the grip or the ball and allowing fingers to pass through the second finger hole part. The second finger hole part comprises three finger holes for the middle finger, the ring finger and the little finger to pass through, when the endoscope injection needle frame is held, only the middle finger, the ring finger and the little finger need to pass through the three finger holes of the second finger hole part, and the holding rod or the ball body is held at the palm.

For solving the third technical problem, the utility model provides an be applied with as above-mentioned endoscopic injection needle frame's endoscopic injection needle, endoscopic injection needle has insertion portion and operating portion, insertion portion has outer tube and this inner tube of inner tube advance and retreat freely and dispose in this outer tube and be fixed with the needle body at the front end, the operating portion with outer tube fixed connection carries out the needle of advancing and retreating of the needle body of inner tube is operated, the end of inner tube can be connected with the syringe that can provide the liquid medicine to the inner tube detachably, its characterized in that: the upper surface of main part has the fixed part that can fix the terminal of inner tube, the at least part of transmission part is located the below of operating portion. The inner tube of the endoscope injection needle can be directly communicated with the injection needle by fluid through the arrangement of the fixing part of the main body, the tail end of the inner tube is fixed by the fixing part of the endoscope injection needle frame, and the operation part fixedly connected with the outer tube can be pulled, namely, the transmission part can be directly triggered under the action of pulling the abutting part corresponding to fingers when a doctor pushes the injector, so that the endoscope injection needle is switched to the needle inserting state.

In order to facilitate the fixing of the end of the inner tube, the fixing portion is preferably an elastic U-shaped stirrup which always has a tendency to narrow the opening.

Compared with the prior art, the utility model has the advantages of the utility model provides an endoscope injection needle frame, this endoscope injection needle frame can be convenient for the doctor with the syringe and can control the operation portion of the needle of inserting of endoscope syringe needle and withdrawing needle in a long-range centralized an organic whole, the operation portion that is connected with operation portion is directly triggered under the action of the application of force that corresponds on the finger pulling endoscope injection needle frame when the doctor promotes the syringe, can switch over the endoscope syringe needle to the state of inserting needle more easily, the doctor of being convenient for injects the one-hand operation of liquid medicine to the illness.

Drawings

FIG. 1 is a schematic structural view of an endoscopic needle holder according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural view of an endoscope needle holder with a syringe fixed thereon according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1

As shown in FIGS. 1 to 3, the preferred embodiment of the present invention is shown. The endoscope needle holder 1 of the present embodiment is used in cooperation with an endoscope needle 2, and the endoscope needle holder 1 includes a main body 11 which can be held in a hand of a doctor, the main body 11 being used for fixing a syringe 21 which can supply a medical solution to the endoscope needle 2, wherein the main body 11 can be provided at a side portion or a bottom portion of the endoscope needle 2, and further includes a force application portion 13 which is located at a lower portion of the main body 11 and is used for applying a force to a finger of the doctor, and a transmission portion 14 which can be directly triggered in response to an action of applying the force to the force application portion 13 by the finger when the doctor pushes the syringe 21, so as to switch the endoscope needle 2 to a needle insertion state. The endoscope injection needle frame 1 can facilitate a doctor to integrate the injector 21 and the operation part which can remotely control the needle insertion and needle withdrawal of the endoscope injection needle 2, and when the doctor pushes the injector 21, the operation part 22 connected with the operation part is directly triggered under the action of the force application of pulling the endoscope injection needle frame 1 by corresponding fingers, so that the endoscope injection needle 2 can be easily switched to the needle insertion state, and the doctor can conveniently perform the single-hand operation of injecting liquid medicine for diseases.

Specifically, taking the main body 11 disposed at the side of the endoscopic injection needle 2 as an example for description, the transmission part 14 includes a transmission rod 141 disposed along the direction of needle withdrawing of the endoscopic injection needle 2, a fixed part 142 capable of fixing and controlling the needle inserting and needle withdrawing operation part 22 of the endoscopic injection needle 2 is disposed at the front end 1412 of the transmission rod 141 corresponding to the same direction of needle withdrawing, a guide seat 143 capable of limiting the transmission rod 141 to move only in the needle inserting or needle withdrawing direction of the endoscopic injection needle 2 is disposed at the rear end 1411 of the transmission rod 141 corresponding to the opposite direction of needle withdrawing, the guide seat 143 is disposed at the side of the main body 11, an elastic member disposed in the guide seat 143 for making the endoscopic injection needle 2 have a tendency of retracting to the needle withdrawing state, and a stopper 16 for stopping the transmission part 14 when the transmission part 14 is triggered to switch the endoscopic injection needle 2 to the needle inserting state, wherein the stopper 16 includes a rear magnet 161 embedded in the rear side wall of the guide seat 143 and a shaft body 16 disposed at the transmission The front magnet 162, the front magnet 162 and the back magnet 161 are arranged at intervals, the polarities of the back magnet 161 and the front magnet 162 are opposite, one end of the elastic piece is abutted against the back magnet 161, the other end of the elastic piece is abutted against the front magnet 162, and the elastic piece 151 enables the back magnet 161 and the front magnet 162 to always have the tendency of being separated. Therefore, when a doctor pushes the injector 21, the transmission rod 141 is directly driven to move backwards by the action of force application of the force application part corresponding to fingers, and then the operation part 22 is driven to move backwards so as to switch the endoscopic injection needle 1 to the needle insertion state, and after the injection of the liquid medicine to a patient is completed, the endoscopic injection needle 1 can automatically return to the needle withdrawal state under the action of the elastic piece, so that the single-hand operation is very suitable for the doctor to control the one-hand operation when the injection needle is withdrawn. In order to meet the requirement that the time for the doctor to complete the injection of the medical solution to the disease is sometimes long, it is preferable that the medical device further include a stopper 16 for stopping the transmission unit 14 when the transmission unit 14 is triggered to switch the endoscopic injection needle 2 to the needle insertion state, so that the endoscopic injection needle can be kept in the long needle withdrawal state by the stopper 16. In order to facilitate the finger of the doctor to apply force to the force application part 13, the force application part 13 is a first finger hole part 131 which is positioned at the lower part of the transmission rod 141 and through which the finger of the doctor passes, while the index finger applies force to pull the first finger hole part 131 backward, the thumb pushes the piston 211 of the syringe 21 forward, therefore, when the endoscopic injection needle 2 is switched to the needle insertion state, the liquid medicine is injected to the patient, and the endoscopic injection needle holder 1 is convenient for a doctor to hold by hand, the main body 11 comprises a ball body 110 for holding by hand and a second finger hole part 132 arranged in front of the ball body 110 and allowing fingers to pass through, the second finger hole part 132 comprises three finger holes for allowing a middle finger, a ring finger and a little finger to pass through, when the endoscopic injection needle holder is held, only the middle finger, the ring finger and the little finger need to pass through the three finger holes of the second finger hole part 132, the ball body can be held in the palm, and the comfort of holding by the doctor is improved.

The present embodiment also provides an endoscopic injection needle to which the above-described endoscopic injection needle holder is applied, the endoscopic injection needle 2 includes an insertion portion 23 and an operation portion 22, the insertion portion 23 includes an outer tube 231 and an inner tube 232, the inner tube 232 is disposed in the outer tube 231 so as to be movable forward and backward, a needle body is fixed to the distal end portion 1452, the operation portion 22 is fixedly connected to the outer tube 231, needle insertion and needle withdrawal operations of the needle body of the inner tube 232 are performed, a syringe 21 capable of supplying a medical fluid to the inner tube 232 is detachably connected to the distal end of the inner tube 232, the upper surface of the main body 11 has a fixing portion 111 capable of fixing the distal end of the inner tube 232, at least a part of the transmission portion 14 is located below the operation portion 22, and the fixing portion 111 is an elastic U-. The inner tube 232 of the endoscopic injection needle 2 is directly communicated with the injection needle by arranging the fixing part 111 of the main body 11, the end of the inner tube 232 fixed by the fixing part 111 of the endoscopic injection needle holder 1 can be directly triggered by pulling the operating part 22 fixedly connected with the outer tube 231, namely, the transmission part 14 can be directly triggered under the action of pulling the abutting part 13 corresponding to fingers when a doctor pushes the injector 21 so as to switch the endoscopic injection needle 2 to a needle feeding state, the fixing part 111 can be selected in various ways, and from the angle of simple structure, the fixing part 142 for fixing the operating part 22 is a U-shaped stirrup and a screw for fastening the opening of the U-shaped stirrup; and the manner of securing the syringe 21 may be a similar watch buckle arrangement.

The procedure of using the endoscope needle holder 1 and the endoscope needle 2 in cooperation is as follows: firstly, the end of the inner tube 232 of the endoscopic injection needle 2 is connected with the injector 21 which can provide the liquid medicine for the inner tube 232, then the end of the inner tube 232 of the endoscopic injection needle 2 is fixed on the fixing part 111 of the main body 11 of the endoscopic injection needle frame 1, when the doctor needs to finish the operation of injecting the liquid medicine for the diseases, the doctor only needs to hold the ball 110, pass the middle finger, the ring finger and the little finger through the three finger holes of the second finger hole part, pass the index finger through the first finger hole part 132 of the force application part 13, push the piston 211 of the injector 21 forward by the big finger while applying force to the first finger hole part 132 by the index finger and pull backwards, thereby injecting the liquid medicine for the patient when the endoscopic injection needle 2 is switched to the needle insertion;

a. when a doctor needs to perform an operation of injecting a medical solution for a disease, the endoscopic injection needle 2 is in the needle-out state: when the doctor pushes the injector 21, the finger hole 132 is pulled by the index finger to apply a force backwards, so as to drive the transmission rod 141 to move backwards, and then drive the operation part 22 to move backwards, so as to switch the endoscopic injection needle 1 to the needle insertion state, and after the patient finishes the injection of the liquid medicine, the endoscopic injection needle 1 can automatically return to the needle withdrawal state under the action of the elastic element, so that the one-hand operation is very suitable for the doctor to control the injection needle to be withdrawn.

b. When the doctor needs to perform a long-term operation of injecting the medical fluid for the disease, the endoscopic injection needle 2 is kept in the needle-out state: the doctor pulls the index finger backward greatly, that is, the transmission rod 141 drives the operation part 22 to move backward to switch the endoscopic injection needle 2 to the needle insertion state, at this time, the elastic member 151 of the transmission rod 141 between the front magnet 162 and the rear magnet 161 is compressed to be in the energy storage state due to the magnetic attraction of the two, at this time, the transmission rod 141 is not moved to keep the endoscopic injection needle 2 in the needle insertion state;

c. when the doctor does not need to perform the operation of injecting the medical solution into the disease, the endoscopic injection needle 2 is kept in the needle withdrawal state: the transmission rod 141 is directly driven to move forward by the expanding action of the index finger, and then the transmission rod 141 is driven to drive the operation part 22 to move forward by the elastic restoring force of the elastic member 151, so as to switch the endoscopic injection needle 2 to the needle withdrawing state.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: the fixing member 142 fixing the operating portion 22 and the fixing portion 111 fixing the syringe 21 may always have an elastic U-shaped stirrup that reduces the tendency of opening.

Example 3

The structure is basically the same as that of the embodiment 1, and the only difference is that: the urging portion 13 is a bump.

Claims (7)

1. An endoscopic needle holder (1) for use with an endoscopic injection needle (2), characterized in that: the endoscope injection needle holder (1) comprises:

a main body (11) which can be held by a doctor's hand and which fixes a syringe (21) capable of supplying a medical fluid to an endoscopic injection needle (2);

a force application part (13) which is positioned at the lower part of the main body (11) and is used for applying force to the fingers of a doctor; and

the transmission part (14), the transmission part (14) is including following the driving lever (141) that endoscope syringe needle (2) play needle place direction set up, and application of force portion (13) are for being located driving lever (141) lower part, and can supply doctor's finger to pass first finger hole portion (131) to when doctor promotes syringe (21) correspond the finger application of force in under the action of application of force portion (13) can directly be triggered, in order to switch endoscope syringe needle (2) to the state of inserting the needle.

2. The endoscopic needle carrier as defined in claim 1, wherein: the transmission part (14) comprises:

the transmission rod (141), the front end (1412) of the transmission rod (141) corresponding to the same direction of needle withdrawing is provided with a fixing part (142) capable of fixing and controlling the needle inserting and withdrawing operation part (22) of the endoscopic injection needle (2), the rear end (1411) of the transmission rod (141) corresponding to the opposite direction of needle withdrawing is provided with a guide seat (143) capable of limiting the transmission rod (141) to move only in the needle inserting or needle withdrawing direction of the endoscopic injection needle (2), and the guide seat (143) is arranged at the bottom of the main body (11);

and

and an elastic member (151) which is provided in the guide holder (143) and which tends to retract the endoscopic injection needle (2) to a needle withdrawal state.

3. The endoscopic needle carrier as defined in claim 2, wherein: the endoscope injection needle is characterized by further comprising a limiting piece (16) which limits the transmission part (14) when the transmission part (14) is triggered to enable the endoscope injection needle (2) to be switched to the needle inserting state.

4. The endoscopic needle carrier as defined in claim 3, wherein: the limiting piece (16) comprises a rear magnet (161) embedded in the rear side wall of the guide seat (143) and a front magnet (162) arranged on the rod body of the transmission rod (141), the front magnet (162) and the rear magnet (161) are arranged at intervals, the polarities of the rear magnet (161) and the front magnet (162) are opposite, one end of an elastic piece (151) abuts against the rear magnet (161), the other end of the elastic piece abuts against the front magnet (162), and the elastic piece (151) enables the rear magnet (161) and the front magnet (162) to always have a tendency of being separated.

5. The endoscopic needle carrier as defined in claim 4, wherein: the main body (11) comprises a ball body (110) for being held by a hand and a second finger hole part (132) which is arranged in front of the ball body (110) and can be used for allowing fingers to pass through.

6. An endoscopic injection needle to which the endoscopic injection needle holder according to any one of claims 1 to 5 is applied, the endoscopic injection needle (2) comprising an insertion part (23) and an operation part (22), the insertion part (23) comprising an outer tube (231) and an inner tube (232), the inner tube (232) being disposed in the outer tube (231) so as to be able to advance and retreat, and a needle body being fixed to a distal end part (1452), the operation part (22) being fixedly connected to the outer tube (231) to perform an operation of advancing and retracting the needle body of the inner tube (232), and a syringe (21) capable of supplying a liquid medicine to the inner tube (232) being detachably connected to a distal end of the inner tube (232), characterized in that: the upper surface of main part (11) has can fix the terminal fixed part (111) of inner tube (232), transmission portion (14) are located the below of operating portion (22) partially at least.

7. An endoscopic injection needle according to claim 6, wherein: the fixing part (111) is an elastic U-shaped stirrup with a reduced opening tendency all the time.

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