CN111419357A - Endoscope injection needle frame and endoscope injection needle using same - Google Patents

Abstract

The invention relates to an endoscope injection needle frame and an endoscope injection needle using the needle frame, the endoscope injection needle frame is matched with the endoscope injection needle for use, and the endoscope injection needle frame is characterized in that: the endoscope injection needle frame comprises a main body which can be held in a hand of a doctor, a syringe which can provide liquid medicine for the endoscope injection needle, a control part which is connected to an operation part which can control the needle feeding and needle withdrawing of the endoscope injection needle, a propping part which is used for propping the fingers of the doctor, and a transmission part which can be directly triggered by the action of pulling the propping part corresponding to the fingers when the doctor pushes the syringe so as to switch the endoscope injection needle to a needle feeding state.

Description

Endoscope injection needle frame and endoscope injection needle using same

Technical Field

The invention relates to an injection needle inserted into a forceps channel of an endoscope for use, in particular to an endoscope injection needle frame suitable for a doctor to remotely control the needle outlet operation of the injection needle with one hand.

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, and the endoscopic injection needle is provided with an elongated insertion portion insertable into an endoscope channel and an operation portion connected to a proximal end portion of the insertion portion. 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.

the invention discloses a Chinese invention patent No. Z L201210014. X (with the publication number of CN102551846A), which 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 in the outer tube (the outer tube is connected with the shell), the Chinese invention patent 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 the injection syringe is used, only a thumb or an index finger is used for pressing down a trigger, a locking plug is inserted into a locking socket, the locking plug is automatically self-locked and positioned through the matching of a check hook and a reverse insertion rack, a release button is pressed by one hand, the needle head can be automatically retracted under the action of the elastic body, the manual pull-back is not needed, the defect that the existing syringe needs to be operated by two hands or the operation of the single hand, the operation of the index finger needs to be carried out, the syringe, the defect that the syringe needs to be automatically pulled back, the syringe is still needs to be operated by two hands, the index finger, the syringe is still needs to be in a state that the syringe, the syringe is not to be locked, the syringe is not to be used, the syringe, and the syringe is not to be used, the syringe, the defect that the syringe is still needs to be locked, the syringe.

Disclosure of Invention

The present invention has been made in view of the above-described conventional state of the art, and an object of the present invention is to provide an endoscopic needle holder which facilitates a doctor to control the needle-out operation of an injection needle with one hand more freely.

The second technical problem to be solved by the present invention is to provide an endoscope needle holder which can better control the needle head of the injection needle to be in the needle-out state and simultaneously facilitate the operation of a doctor pushing the injector, aiming at the current state of the prior art.

A third object of the present invention is to provide an endoscopic injection needle to which the above endoscopic needle holder is applied, in view of the above-described state of the art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: 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;

A control unit configured to be connected to an operation unit capable of controlling insertion and withdrawal of the endoscopic injection needle, the control unit being provided on the main body, the control unit further including:

The abutting part is arranged on the main body and used for abutting fingers of a doctor so as to clamp the injector; and

And the transmission part can be directly triggered under the action of the corresponding finger control part when the doctor pushes the injector so as to switch the endoscope injection needle to the needle inserting state.

In order to solve the second technical problem, preferably, the abutting portion includes a holding finger hole portion into which a middle finger and a ring finger of a doctor can be inserted to hold the syringe, the control portion includes an operating finger hole portion into which a forefinger and a little finger of the doctor can be inserted to cooperate with a thumb to push the syringe, and the operating finger hole portion includes an index finger portion and a little finger portion respectively located at the periphery of the holding finger hole portion; the index finger portion and the thumb portion are rotatable relative to the body; therefore, the transmission part can be directly triggered to switch the endoscope injection needle to the needle inserting state under the action of folding the finger hole part corresponding to the index finger and the little finger when a doctor pushes the injector. Because the index finger and the little finger need to be folded towards the palm center when correspondingly folded, in order to improve the operation comfort when a doctor holds the endoscope injection needle frame, the operation finger hole part is preferably capable of rotating within a small angle range, such as 2-15 degrees, along with the folding action of the index finger and the little finger.

Further, the transmission part includes:

The first transmission rod is arranged along the direction of the needle withdrawing of the endoscopic injection needle, the front end of the first transmission rod corresponding to the needle withdrawing direction is provided with a fixing part which can fixedly control the needle inserting and needle withdrawing operation parts of the endoscopic injection needle, the rear end of the first transmission rod corresponding to the needle withdrawing direction is provided with a guide part which can limit the first transmission rod to move only along the needle inserting or needle withdrawing direction of the endoscopic injection needle, and the guide part is arranged at the bottom of the main body;

The second transmission rod is also arranged along the direction of the needle outlet of the endoscope injection needle and is positioned at the downstream of the rear end of the first transmission rod, and the front part of the second transmission rod is provided with a first pivot point for rotating the index finger part of the operation finger hole part;

The third transmission rod is also arranged along the direction of the needle outlet of the endoscope injection needle and is positioned at the downstream of the rear end of the first transmission rod, the third transmission rod and the second transmission rod are respectively arranged at the left side and the right side of the first transmission rod in parallel, and the front end part of the third transmission rod is provided with a second pivot point for the rotation of the small finger part of the operation finger hole part;

And

The first connecting rod is perpendicular to the direction in which the needle of the endoscope injection needle is discharged, is connected to the rear end of the first transmission rod, and is used for connecting the second transmission rod and the third transmission rod; therefore, when a doctor pushes the injector, the second transmission rod and the third transmission rod are directly driven to move backwards under the folding action of the corresponding index finger and the corresponding little finger, and then the first transmission rod is driven to drive the operation part to move backwards, so that the endoscope injection needle is switched to a needle inserting state.

In order to facilitate switching of the endoscopic injection needle to the needle withdrawing state when the doctor performs the operation of injecting the medical solution to the disease, it is preferable that the control unit further includes:

An elastic member disposed in the main body and configured to cause the endoscopic injection needle to have a tendency to retract to a needle withdrawal state; and

And a stopper that stops the transmission unit when the transmission unit is triggered and the endoscopic injection needle is switched to the needle insertion state. The endoscope injection needle can automatically return to the needle withdrawing state under the action of the elastic piece, and in addition, in order to meet the requirement that a doctor needs to take a long time for injecting liquid medicine to a disease, the endoscope injection needle needs to be kept in a long needle withdrawing state under the action of the limiting piece.

The choice of the limiting member can be various, and from the viewpoint of simple structure and convenient processing, preferably, the elastic member is divided into a first elastic member corresponding to the second transmission rod, wherein the rear part of the second transmission rod is provided with a front side wall opening for accommodating a second lock seat of the first elastic piece, the second transmission rod can be inserted in the second lock seat in a sliding way, the limiting piece comprises a first rear magnet embedded in the rear side wall of the second lock seat and a first front magnet arranged on the rod body of the second transmission rod, the first front magnet and the first rear magnet are arranged at intervals, the polarities of the first rear magnet and the first front magnet are opposite, one end of the first elastic piece is abutted against the first rear magnet, the other end of the first elastic piece is abutted against the first front magnet, the first elastic piece enables the first back magnet and the first front magnet to always have the tendency of being separated. When a doctor pushes the injector, the second transmission rod and the third transmission rod are directly driven to move backwards under the furling action of the index finger and the little finger, then the first transmission rod is driven to drive the operation part to move backwards, so that the endoscopic injection needle is switched to the needle insertion state, at the moment, the first elastic piece between the first front magnet and the first back magnet of the second transmission rod is compressed to be in the energy storage state due to the attraction effect of the magnetism of the first front magnet and the magnetism of the first back magnet, the second transmission rod is fixed, the first transmission rod is also kept still, and the first transmission rod drives the operation part to be in the backwards moving state so as to keep the endoscopic injection needle in the needle insertion state.

Similarly, the elastic member is divided into a second elastic member corresponding to the third transmission rod, wherein the rear end of the third transmission rod is provided with a front side wall opening to accommodate a third lock seat of the second elastic member, the third transmission rod is slidably inserted into the third lock seat, the limiting member comprises a second rear magnet embedded in the rear side wall of the third lock seat and a second front magnet arranged on the rod body of the third transmission rod, the second front magnet and the second rear magnet are arranged at intervals, the polarities of the second rear magnet and the second front magnet are opposite, one end of the second elastic member abuts against the second rear magnet, the other end of the second elastic member abuts against the second front magnet, and the second rear magnet and the second front magnet always have a tendency of separation. At the moment, the second elastic piece of the third transmission rod between the second front magnet and the second rear magnet is compressed to be in an energy storage state due to the magnetic attraction of the second front magnet and the second rear magnet, the third transmission rod is still, the first transmission rod is still, and the first transmission rod drives the operation part to be in a backward moving state so as to keep the endoscope injection needle in a needle inserting state.

In order to realize the synchronous movement of the second transmission rod and the third transmission rod, preferably, the rear part of the second transmission rod can penetrate out of the second lock seat, the rear end part of the third transmission rod can penetrate out of the third lock seat, and the rear part of the second transmission rod and the rear end part of the third transmission rod are connected through a second connecting rod.

Furthermore, a fixing seat and a fixing rod are arranged between the second lock seat and the third lock seat and used for connecting the second lock seat and the third lock seat, and the fixing seat is fixed to the bottom of the main body.

In order to satisfy the engineering mechanics of human body and improve the comfort of holding by the doctor, preferably, a ball body which can be matched with the palm center of the hand of the doctor is arranged at the rear part of the fixing seat at the bottom of the main body.

In order to solve the third technical problem, the present invention provides an endoscopic injection needle to which the above-described endoscopic injection needle holder is applied, the endoscopic injection needle including an insertion portion and an operation portion, the insertion portion including an outer tube and an inner tube, the inner tube being disposed in the outer tube so as to be freely advanced and retracted and having a needle body fixed to a distal end portion thereof, the operation portion being fixedly connected to the outer tube, the operation portion performing an insertion and retraction operation of the needle body of the inner tube, and a syringe capable of supplying a drug solution to the inner tube being detachably connected to a distal end of the inner tube, the endoscopic injection needle including: 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.

Compared with the prior art, the invention has the advantages that the endoscope needle holder is convenient for a doctor to integrate a syringe and an operation part which can remotely control the needle insertion and needle withdrawal of the endoscope needle, when the doctor pushes the syringe, the operation part connected with the operation part is directly triggered under the action of controlling the control part on the endoscope needle holder corresponding to fingers, the endoscope needle can be easily switched to the needle insertion state, and the single-hand operation of injecting liquid medicine for the doctor is convenient.

Drawings

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

FIG. 2 is a schematic view showing another angle configuration of an endoscopic needle holder according to embodiment 1 of the present invention;

FIG. 3 is a schematic view showing a further angle of the needle holder of the endoscope in embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of an endoscopic injection needle in embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic structural view of an endoscopic needle holder to which a syringe and an endoscopic needle are fixed according to embodiment 1 of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;

FIG. 8 is a schematic view of the structure at yet another angle of FIG. 6;

FIG. 9 is a cross-sectional view at an angle of FIG. 6;

FIG. 10 is a sectional view showing the state where the syringe of the needle holder of the endoscope in embodiment 1 of the present invention is not required to inject the liquid medicine to the disease;

FIG. 11 is a sectional view showing a state in which a syringe on a needle holder of an endoscope is required to inject a liquid medicine to a disease in example 1 of the present invention;

FIG. 12 is a schematic structural view of an endoscopic needle holder in embodiment 3 of the present invention;

FIG. 13 is an exploded view of FIG. 12;

FIG. 14 is a schematic view showing a structure in which a syringe is fixed to an endoscopic needle holder according to embodiment 3 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 11, 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, the endoscope needle holder 1 includes a main body 11 which can be held in a hand of a doctor, the main body 11 is used for fixing a syringe 21 which can supply a medical fluid to the endoscope needle 2, a control part 12 which is configured to be connected to an operation part 22 which can control needle insertion and needle withdrawal of the endoscope needle 2, wherein the endoscope needle holder 1 further includes a holding part 13 which is used for holding the syringe 21 by a finger of the doctor, and can be directly triggered by an action of the control part 12 corresponding to the finger when the doctor pushes the syringe 21 to switch the endoscope needle 2 to a needle insertion state, the transmission part 14 can switch the endoscope needle 2 to a needle insertion state after being triggered, the endoscope needle holder can facilitate the doctor to integrate the syringe 21 and the operation part 22 which can remotely control needle insertion and needle withdrawal of the endoscope needle 2, when the doctor pushes the syringe 21, the operation part 22 connected to the operation part 22 is directly activated by controlling the operation of the control part 12 of the endoscopic needle holder 1 with fingers, so that the endoscopic needle 2 can be easily switched to the needle insertion state, and the doctor can easily perform the one-hand operation of injecting the liquid medicine for the disease.

Specifically, the holding portion 13 includes a finger-holding hole portion 131 into which the middle finger and the ring finger of the doctor can be inserted to hold the syringe 21, the control portion 12 includes an operating finger hole portion 132 into which the index finger and the small finger of the doctor can be inserted to cooperate with the thumb to push the syringe 21, the operating finger hole portion 132 includes an index finger portion 1321 and a small finger portion 1322 respectively located at the periphery of the finger-holding hole portion 131, and the index finger portion 1321 and the small finger portion 1322 can rotate relative to the main body 11, so that the transmission portion 14 can be directly triggered to switch the endoscopic injection needle 2 to the needle insertion state by the action of the operating finger hole portion 132 being closed by the index finger and the small finger when the doctor pushes the syringe 21. Because the index finger and the little finger need to be folded towards the palm center when being folded correspondingly, in order to improve the operation comfort when a doctor holds the endoscope injection needle frame 1, the operation finger hole part 132 comprises an index finger part 1321 for passing the index finger and a little finger part 1322 for passing the little finger, the index finger part 1321 and the little finger part 1322 are respectively positioned at the periphery of the clamping finger hole part 131, so that the endoscope injection needle 2 is directly triggered under the folding action of the corresponding finger when the doctor pushes the injector 21 to switch the endoscope injection needle to the needle inserting state, and the operation of the index finger part 1321 and the little finger part 1322 can rotate within a small angle range, such as 2-15 degrees, along with the folding action of the index finger and the little finger, so that the hand is in a more comfortable state when the doctor operates. The transmission part 14 of the main body 11 comprises a first transmission rod 141 arranged along the direction of needle withdrawing of the endoscopic injection needle 2, a fixing part 142 capable of fixing and controlling the operation part 22 of needle inserting and needle withdrawing of the endoscopic injection needle 2 is arranged at the front end 1412 of the first transmission rod 141 corresponding to the same direction of needle withdrawing, a guide part 143 capable of limiting the first transmission rod 141 to move only in the needle inserting or needle withdrawing direction of the endoscopic injection needle 2 is arranged at the rear end 1411 of the first transmission rod 141 corresponding to the opposite direction of needle withdrawing, and the guide part 143 is arranged at the bottom of the main body 11; a second transmission lever 144 also provided along the direction in which the endoscopic injection needle 2 is withdrawn, the second transmission lever 144 being located downstream of the rear end 1411 of the first transmission lever 141, and a front portion 1442 of the second transmission lever 144 having a first pivot point 1441 for rotating the index finger portion 1321 of the operation finger hole portion 132; and a third transmission lever 145 also provided along the direction in which the endoscopic injection needle 2 is withdrawn, the third transmission lever 145 being located downstream of the rear end 1411 of the first transmission lever 141 and being provided on the left and right sides of the first transmission lever 141 side by side with the second transmission lever 144, respectively, a front end 1452 of the third transmission lever 145 having a second pivot point 1451 about which the small finger 1322 of the finger hole portion 132 is operated; and a first connecting rod 146 arranged perpendicular to the direction in which the endoscopic injection needle 2 is withdrawn, wherein the first connecting rod 146 is connected to the rear end 1411 of the first driving rod 141 and is used for connecting the second driving rod 144 and the third driving rod 145, so that when the doctor pushes the injector 21, the second driving rod 144 and the third driving rod 145 are directly driven to move backwards by the furling action of the index finger and the little finger, and then the first driving rod 141 is driven to drive the operating part 22 to move backwards, so as to switch the endoscopic injection needle 2 to the needle withdrawing state, otherwise, when the doctor does not need to inject, the second driving rod 144 and the third driving rod 145 are directly driven to move forwards by the expanding action of the index finger and the little finger, and then the first driving rod 141 is driven to drive the operating part 22 to move forwards, so as to switch the endoscopic injection needle 2 to the needle withdrawing state.

In order to make it easier for the endoscope injection needle 2 to switch to the needle withdrawing state when the doctor performs the operation of injecting the medical fluid into the disease, it is preferable that the control unit 12 further includes an elastic member provided in the main body 11, the elastic member being capable of causing the endoscope injection needle 2 to have a tendency of retracting to the needle withdrawing state, and a stopper 16 for stopping the transmission member when the transmission unit 14 is triggered to switch the endoscope injection needle 2 to the needle inserting state, so that the endoscope injection needle 2 can automatically return to the needle withdrawing state by the elastic member as long as the doctor performs the operation of injecting the medical fluid, as long as the index finger and the little finger are expanded forward, and in addition, in order to meet the requirement that the doctor performs the operation of injecting the medical fluid into the disease, the endoscope injection needle 2 can be maintained in the needle withdrawing state by the stopper 16. The choice of the position-limiting member 16 can be various, and from the viewpoint of simple structure and convenient processing, preferably, the elastic member is divided into a first elastic member 151 corresponding to the second transmission rod 144, the rear portion 1443 of the second transmission rod 144 has an opening on the front sidewall to accommodate the second lock seat 152 of the first elastic member 151, the second transmission rod 144 can be slidably inserted into the second lock seat 152, the position-limiting member 16 includes a first rear magnet 161 embedded in the rear sidewall of the second lock seat 152 and a first front magnet 162 disposed on the rod of the second transmission rod 144, the first front magnet 162 and the first rear magnet 161 are disposed at a distance, the polarities of the first rear magnet 161 and the first front magnet 162 are opposite, one end of the first elastic member 151 abuts against the first rear magnet 161, the other end abuts against the first front magnet 162, the first elastic member 151 makes the first rear magnet 161 and the first front magnet 162 always have a tendency to separate from each other, when the doctor pushes the injector 21, the second transmission rod 144 and the third transmission rod 145 are directly driven to move backwards by the furling action of the index finger and the little finger, and then the first transmission rod 141 is driven to drive the operation part 22 to move backwards, so as to switch the endoscopic injection needle 2 to the needle insertion state, at this time, the first elastic part 151 of the second transmission rod 144 between the first front magnet 162 and the first rear magnet 161 is compressed to be in the energy storage state due to the magnetic attraction of the two, at this time, the second transmission rod 144 is not moved, the first transmission rod 141 is also kept still, and the first transmission rod 141 drives the operation part 22 to be in the backwards movement state, so as to keep the endoscopic injection needle 2 in the needle insertion state. Similarly, the elastic member is divided into a second elastic member 153 corresponding to the third transmission rod 145, wherein the rear end 1453 of the third transmission rod 145 has an opening on the front sidewall, a third locking seat 154 for accommodating the second elastic member 153, the third transmission rod 145 is slidably inserted into the third locking seat 154, the stopper 16 includes a second rear magnet 163 embedded in the rear sidewall of the third locking seat 154 and a second front magnet 164 disposed on the shaft of the third transmission rod 145, the second front magnet 164 and the second rear magnet 163 are spaced apart, the polarities of the second rear magnet 163 and the second front magnet 164 are opposite, one end of the second elastic member 153 abuts against the second rear magnet 163, the other end abuts against the second front magnet 164, the second elastic member 153 makes the second rear magnet 163 and the second front magnet 164 have a tendency to separate from each other all the time, at this time, the third transmission rod 145 is attracted by the magnetism of the second elastic member 153 between the second front magnet 163 and the second rear magnet 164, the second elastic member 153 is compressed to be in an energy storage state, at this time, the third transmission rod 145 is not moved, the first transmission rod 141 is also kept, and the first transmission rod 141 drives the operation portion 22 to be in a state of being moved backward, so that the endoscopic injection needle 2 is kept in a needle insertion state. Finally, in order to achieve the synchronous movement of the second transmission rod 144 and the third transmission rod 145, the rear portion 1443 of the second transmission rod 144 can penetrate out of the second lock seat 152, the rear end portion 1453 of the third transmission rod 145 can penetrate out of the third lock seat 154, the rear portion 1443 of the second transmission rod 144 and the rear end portion 1453 of the third transmission rod 145 are connected through a second connecting rod 17, a fixing seat 3 and a fixing rod 4 are further arranged between the second lock seat 152 and the third lock seat 154 to connect the two, and the fixing seat 3 is fixed at the bottom of the main body 11. In order to satisfy the engineering mechanics of human body and improve the comfort of holding by the doctor, the bottom of the main body 11 is provided with a ball 5 which can be matched with the palm center of the hand of the doctor at the rear part 1443 of the fixed seat 3.

The present embodiment also provides an endoscopic injection needle 2 used in combination with the above-described endoscopic injection needle holder 1, wherein the endoscopic injection needle 2 has an insertion part 23 and an operation part 22, the insertion part 23 has an outer tube 231 and an inner tube 232, the inner tube 232 is disposed in the outer tube 231 so as to be freely advanced and retracted, a needle body 20 is fixed to a distal end part thereof, the operation part 22 is fixedly connected to the outer tube 231, the needle body 20 of the inner tube 232 is inserted and retracted, a syringe 21 capable of supplying a medicinal liquid to the inner tube 232 is detachably connected to a distal end of the inner tube 232, a fixing part 111 capable of fixing the distal end of the inner tube 232 is provided on an upper surface of the main body 11, at least a part of the transmission part 14 is located below the operation part 22, the inner tube 232 of the endoscopic injection needle 2 and the injection needle are directly brought into fluid communication with each other by the installation of the fixing part 111 of the main body 11, and the distal end of the inner tube 232 is fixed to the, 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 an injection state, the fixing part 111 can be selected from various types, and from the perspective of simple structure, the fixing part is a U-shaped bayonet with an upward opening, and in addition, the fixing part 142 of the fixing operation part 22 is a U-shaped stirrup and a screwing screw for fastening the opening of the U-shaped stirrup; and the fixing member 142 for fixing the syringe 21 may have a buckle structure.

The procedure of using the endoscope needle holder 1 and the endoscope needle 2 in cooperation is as follows: the end of the inner tube 232 of the endoscopic injection needle 2 is connected with the syringe 21 which can provide the medical liquid to 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 medical liquid injection operation to the diseases, the doctor only needs to correspondingly pass the index finger, the middle finger, the ring finger and the little finger through the index finger part 1321 of the operation finger hole part 132, the little finger part 1322 of the operation finger hole part 132 and the clamping finger hole part 131, and the sphere 5 of the main body 11 is positioned at the palm center position of the doctor's hand;

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 second transmission rod 144 and the third transmission rod 145 are directly driven to move backwards by the furling action of the corresponding index finger and little finger, and then the first transmission rod 141 is driven to drive the operation part 22 to move backwards, so that the endoscopic injection needle 2 is switched to the needle insertion state; the forefinger part 1321 and the little finger part 1322 can rotate within a small angle range, such as 2-8 degrees, along with the folding action of the forefinger and the little finger; after the operation of injecting the liquid medicine is completed, the second transmission rod 144 and the third transmission rod 145 can be directly driven to move forward only by slightly expanding the index finger and the little finger, and then the first transmission rod 141 is driven to drive the operation part 22 to move forward, so that the endoscopic injection needle 2 is switched to the needle withdrawing state;

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 furling action of the doctor corresponding to the index finger and the little finger is larger, and the instant finger 1321 and the little finger 1322 can rotate in a large-angle range, such as 9-15 degrees, along with the furling action of the index finger and the little finger when operated; the index finger portion 1321 of the operation finger hole portion 132 and the small finger portion 1322 of the operation finger hole portion 132 directly drive the second transmission rod 144 and the third transmission rod 145 to move backward corresponding to the folding action of the index finger and the small finger, and then drive the first transmission rod 141 to drive the operation portion 22 to move backward, so as to switch the endoscopic injection needle 2 to the needle insertion state, at this time, the first elastic member 151 is compressed to be in the energy storage state due to the magnetic attraction of the first elastic member 151 between the first front magnet 162 and the first rear magnet 161 of the second transmission rod 144, at this time, the second transmission rod 144 is not moved, the second elastic member 153 between the second front magnet 164 and the second rear magnet 163 of the third transmission rod 145 is in the energy storage state due to the magnetic attraction of the second elastic member 153, at this time, the third transmission rod 145 is not moved, so that the first transmission rod 141 also remains stationary, the first transmission rod 141 drives the operation portion 22 to be in the backward moving state, to hold 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 second transmission rod 144 and the third transmission rod 145 are directly driven to move forward by the expanding action of the corresponding index finger and the little finger, and then the first transmission rod 141 is driven to drive the operation part 22 to move forward by the elastic restoring force of the first elastic member 151 and the second elastic member 153, 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 operation part 22 and the fixing part 111 fixing the tip end of the inner tube 232 may be elastic U-shaped stirrups always having a tendency to narrow the opening.

Example 3

The structure is basically the same as that of the embodiment 1, and the only difference is that: the control part 12 is a first finger hole part 131 located below the main body 11, the holding part 13 is three finger holes of a second finger hole part 132 through which the middle finger, the ring finger and the little finger pass, the index finger passes through the first finger hole part 132, and the thumb pushes the piston rod 211 of the syringe 21 forward while the index finger applies force to pull the first finger hole part 131 backward, so that the endoscope injection needle 2 is switched to the needle insertion state to inject the liquid medicine to the patient.

Claims (10)

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 control unit (12) configured to be connected to an operation unit (22) capable of controlling the insertion and withdrawal of the endoscopic injection needle (2), the control unit (12) being provided on the main body (11), and further comprising:

The abutting part (13) is arranged on the main body (11) and is used for abutting fingers of a doctor to clamp the injector (21); and

And a transmission part (14) which can be directly triggered to switch the endoscope injection needle (2) to an insertion state according to the action of the finger control part (12) when the doctor pushes the injector (21).

2. The endoscopic needle carrier as defined in claim 1, wherein: the supporting part (13) comprises a clamping finger hole part (131) for inserting a middle finger and a ring finger of a doctor to clamp the injector (21), the control part (12) comprises an operating finger hole part (132) for inserting a forefinger and a little finger of the doctor to match with a thumb to push the injector (21), and the operating finger hole part (132) comprises an index finger part (1321) and a little finger part (1322) which are respectively positioned at the periphery of the clamping finger hole part (131); the index finger portion (1321) and the thumb portion (1322) are rotatable relative to the body (11); thereby, the transmission part (14) can be directly triggered to switch the endoscope injection needle (2) to the needle inserting state under the action of the finger hole part (132) which is folded and operated by the index finger and the little finger when a doctor pushes the injector (21).

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

The first transmission rod (141) is arranged along the direction of the needle withdrawing of the endoscopic injection needle (2), a fixing piece (142) capable of fixing and controlling an operation part (22) for needle inserting and needle withdrawing of the endoscopic injection needle (2) is arranged at the front end (1412) of the first transmission rod (141) corresponding to the needle withdrawing direction, a guide piece (143) capable of limiting the first transmission rod (141) to move only along the needle inserting or needle withdrawing direction of the endoscopic injection needle (2) is arranged at the rear end (1411) of the first transmission rod (141) corresponding to the needle withdrawing direction, and the guide piece (143) is arranged at the bottom of the main body (11);

A second transmission lever (144) also provided along the direction in which the endoscopic injection needle (2) is withdrawn, downstream of the rear end (1411) of the first transmission lever (141), the front portion (1442) of the second transmission lever (144) having a first pivot point (1441) for rotating the index finger portion (1321) of the operation finger hole portion (132);

A third transmission lever (145) which is also provided along the direction in which the endoscopic injection needle (2) is discharged, is located downstream of the rear end (1411) of the first transmission lever (141), the third transmission lever (145) and the second transmission lever (144) are provided on the left and right sides of the first transmission lever (141) in parallel, respectively, and a front end portion (1452) of the third transmission lever (145) has a second pivot point (1451) at which the thumb portion (1322) of the operation finger hole portion (132) is rotated;

And

The first connecting rod (146) is perpendicular to the direction in which the endoscopic injection needle (2) is taken out, is connected to the rear end (1411) of the first transmission rod (141), and is used for connecting the second transmission rod (144) and the third transmission rod (145); therefore, when a doctor pushes the injector (21), the second transmission rod (144) and the third transmission rod (145) are directly driven to move backwards under the folding action of the corresponding index finger and the little finger, and then the first transmission rod (141) is driven to drive the operation part (22) to move backwards, so that the endoscopic injection needle (2) is switched to a needle inserting state.

4. An endoscope needle carrier according to any of claims 1 to 3, characterized in that: the control unit (12) further includes:

An elastic member provided in the main body (11) and configured to cause the endoscopic injection needle (2) to have a tendency to retract to a needle withdrawal state; and

And a stopper (16) that stops the transmission unit (14) when the transmission unit (14) is triggered and the endoscopic injection needle (2) is switched to the needle insertion state.

5. The endoscopic needle carrier as defined in claim 4, wherein: the elastic member is divided into a first elastic member (151) corresponding to the second transmission rod (144), wherein the rear part (1443) of the second transmission rod (144) is provided with a front side wall opening and a second lock seat (152) for accommodating the first elastic member (151), the second transmission rod (144) can be inserted into the second lock seat (152) in a sliding manner, the limiting member (16) comprises a first rear magnet (161) embedded in the rear side wall of the second lock seat (152) and a first front magnet (162) arranged on the rod body of the second transmission rod (144), the first front magnet (162) and the first rear magnet (161) are arranged at intervals, the polarities of the first rear magnet (161) and the first front magnet (162) are opposite, one end of the first elastic member (151) abuts against the first rear magnet (161), and the other end of the first front magnet (162) abuts against, the first elastic member (151) makes the first rear magnet (161) and the first front magnet (162) always have a tendency to be separated.

6. The endoscopic needle carrier as defined in claim 5, wherein: the elastic member is divided into a second elastic member (153) corresponding to the third transmission rod (145), wherein the rear end portion (1453) of the third transmission rod (145) has a front side wall opening to accommodate a third lock seat (154) of the second elastic member (153), the third transmission rod (145) is slidably inserted into the third lock seat (154), the limiting member (16) comprises a second rear magnet (163) embedded in the rear side wall of the third lock seat (154) and a second front magnet (164) arranged at the shaft of the third transmission rod (145), the second front magnet (164) and the second rear magnet (163) are arranged at intervals, the polarities of the second rear magnet (163) and the second front magnet (164) are opposite, one end of the second elastic member (153) abuts against the second rear magnet (163), and the other end abuts against the second front magnet (164), the second elastic piece (153) enables the second back magnet (163) and the second front magnet (164) to always have the tendency of being separated.

7. The endoscopic needle carrier as defined in claim 6, wherein: the rear part (1443) of the second transmission rod (144) can penetrate out of the second lock seat (152), the rear end part (1453) of the third transmission rod (145) can penetrate out of the third lock seat (154), and the rear part (1443) of the second transmission rod (144) and the rear end part (1453) of the third transmission rod (145) are connected through a second connecting rod (17).

8. The endoscopic needle carrier as defined in claim 7, wherein: a fixing seat (3) and a fixing rod (4) for connecting the second lock seat (152) and the third lock seat (154) are arranged between the second lock seat and the third lock seat, and the fixing seat (3) is fixed at the bottom of the main body (11).

9. An endoscope needle carrier as described in any of claims 5 to 8, wherein: the bottom of the main body (11) is provided with a ball body (5) which can be matched with the palm center of the hand of a doctor at the rear part (1443) of the fixed seat (3).

10. An endoscopic injection needle to which the needle holder according to any one of claims 1 to 9 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 freely advanced and retracted, and a needle body (20) being fixed to a distal end part thereof, the operation part (22) being fixedly connected to the outer tube (231) to perform an operation of advancing and retracting the needle body (20) 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.

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