CN212327112U

CN212327112U - Syringe capable of injecting multiple medicaments

Info

Publication number: CN212327112U
Application number: CN202020257916.6U
Authority: CN
Inventors: 廖广丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2021-01-12
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses an injector which can inject a plurality of medicaments; belongs to the technical field of medical appliances; the technical key points of the device comprise a needle cylinder, wherein one end of the needle cylinder is provided with a first nipple, a push rod is arranged in the needle cylinder, and one end of the push rod, which is close to the first nipple, is provided with a piston; a second nipple which is perpendicular to the needle cylinder is arranged at one end, close to the first nipple, of the needle cylinder, the first nipple is detachably sleeved with a first check valve assembly for preventing external liquid from flowing into the needle cylinder from the first nipple, the first check valve assembly is fixedly connected with a first needle head assembly, the second nipple is detachably sleeved with a second check valve for preventing the liquid in the needle cylinder from flowing out of the outside from the second nipple, and the second check valve assembly is fixedly connected with a second needle head assembly; the utility model aims at providing an injectable multiple medicament's syringe realizes the function of continuing the dosing under the condition of not extracting the syringe needle.

Description

Syringe capable of injecting multiple medicaments

Technical Field

The utility model relates to a belong to medical apparatus technical field, concretely relates to syringe of injectable multiple medicament.

Background

The injector is a common medical appliance and is mainly used for injecting medicine, drawing blood and the like to a patient; the injector in the prior art can only inject one medicine once, and when a single patient needs to inject a plurality of medicines, the patient needs to be penetrated into the skin for a plurality of times, which brings strong discomfort to the patient.

Patent No. CN110680998A discloses an adjustable syringe having the function of injecting a plurality of medicines, but the medicines are mixed and injected, and the method is consistent with the method of extracting medicines in a plurality of medicine bottles by the same syringe in the prior art, and the medicine can not be continuously administered without pulling out a needle.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a syringe capable of injecting a plurality of medicaments, which solves the problems existing in the prior art.

The technical scheme of the utility model is realized like this: an injector capable of injecting various medicaments comprises a needle cylinder, wherein one end of the needle cylinder is provided with a first nipple, a push rod is arranged in the needle cylinder, and one end of the push rod, which is close to the first nipple, is provided with a piston; the one end that the cylinder is close to first nipple is equipped with the second nipple that sets up with the cylinder is perpendicular, first nipple detachably cup joints the first check valve subassembly that is used for preventing external liquid from flowing into the cylinder from first nipple, first check valve subassembly fixedly connected with first needle subassembly, second nipple detachably cup joints and is used for preventing liquid in the cylinder from flowing external second check valve from the second nipple, second check valve subassembly fixedly connected with second needle subassembly.

Preferably, the first check valve assembly comprises a first fixing sleeve, a first ball and a first spring, a first check groove is arranged in the first fixing sleeve, one end of the first check groove is detachably sleeved on the first nipple, the other end of the first check groove is fixedly connected with the first needle assembly, the first ball is located in the first check groove, the first spring is located between the first ball and the other end of the first check groove and provides a force for the first ball to move towards the first nipple direction, and the first ball can break the connection between the first nipple and the first needle assembly; furthermore, the first needle assembly consists of a connecting hose, a needle holding handle and a hollow steel needle which are sequentially connected, the connecting hose, the needle holding handle and the hollow steel needle are communicated with each other, and one end of the connecting hose, which is far away from the needle holding handle, is fixedly connected with the other end of the first check groove and is communicated with the other end of the first check groove; furthermore, the first ball is made of medical silica gel materials.

Preferably, the second check valve assembly comprises a second fixing sleeve, a second ball and a second spring, a second check groove is formed in the second fixing sleeve, one end of the second check groove is detachably sleeved on the second nipple, the other end of the second check groove is fixedly connected with the second needle assembly, the second ball is located in the second check groove, the second spring is located between the second ball and the second nipple and provides a force for the second ball to move towards the other end of the second check groove, and the second ball can break the connection between the second nipple and the second needle assembly; furthermore, the second ball is made of medical silica gel materials.

The utility model adopts the above structure after, its beneficial effect does: realize the function of continuously dosing through the cooperation of first check valve subassembly and two of first check valve subassembly, need not to pull out the syringe needle many times, improved patient's comfort effectively to when needs pour into liquid into the medicine body bag in a plurality of medicine bottles, this utility model can regard as the drawing liquid pump to use, can reduce medical personnel's intensity of labour effectively, and improve work efficiency.

Drawings

The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is an exploded view of the whole structure of the embodiment of the present invention;

fig. 3 is a partial structural sectional view of an embodiment of the present invention.

In the figure: 1-syringe, 2-first nipple, 3-plunger, 4-piston, 5-second nipple, 6-first check valve assembly, 7-first needle assembly, 8-second check valve, 9-second needle assembly, 61-first fixing sleeve, 62-first ball, 63-first spring, 64-first check groove, 71-connecting hose, 72-needle holding handle, 73-hollow steel needle, 81-second fixing sleeve, 82-second ball, 83-second spring, 84-second check groove.

Detailed Description

Referring to fig. 1-3, an injector capable of injecting multiple drugs according to the present invention includes a syringe 1, a first nipple 2 is disposed at one end of the syringe 1, a push rod 3 is disposed in the syringe 1, and a piston 4 is disposed at one end of the push rod 3 close to the first nipple 2; a second nipple 5 which is perpendicular to the needle cylinder 1 is arranged at one end of the needle cylinder 1, which is close to the first nipple 2, the first nipple 2 is detachably sleeved with a first check valve component 6 which is used for preventing external liquid from flowing into the needle cylinder 1 from the first nipple 2, the first check valve component 6 is fixedly connected with a first needle assembly 7, the second nipple 5 is detachably sleeved with a second check valve 8 which is used for preventing the liquid in the needle cylinder 1 from flowing out of the external environment from the second nipple 5, and the second check valve 8 component is fixedly connected with a second needle assembly 9; when in liquid extraction, the second needle assembly 9 is penetrated into the medicine bottle, then the push rod 3 is pulled out for liquid extraction, at the moment, the first check valve assembly 6 is closed, the second check valve assembly 8 is communicated, and the liquid medicine sequentially flows through the second needle assembly 9, the second check valve assembly 8 and the second nipple 5 and then enters the needle cylinder 1; during injection, the first needle assembly 7 is punctured into the subcutaneous part of a patient, then the push rod 3 is pushed in for injection, the second check valve assembly 8 is closed at the moment, the first check valve assembly 6 is communicated, and liquid medicine flows through the first nipple 2, the first check valve assembly 6 and the first needle assembly 7 in sequence and then enters the body of the patient; when the injection needs to be performed again, the first needle assembly 7 does not need to be pulled out, the second needle assembly 9 only needs to be punctured into a new medicine bottle again, then the push rod 3 is pulled to suck new medicine liquid into the needle cylinder 1 again, and the blood of a patient cannot be sucked out due to the arrangement of the first check valve, and similarly, during the injection, the medicine liquid cannot be injected back into the medicine bottle due to the arrangement of the second check valve 8.

Preferably, the first check valve assembly 6 comprises a first fixing sleeve 61, a first ball 62 and a first spring 63, wherein a first check groove 64 is arranged in the first fixing sleeve 61, one end of the first check groove 64 is detachably sleeved on the first nipple 2, the other end of the first check groove 64 is fixedly connected with the first needle assembly 7, the first ball 62 is positioned in the first check groove 64, the first spring 63 is positioned between the first ball 62 and the other end of the first check groove 64, and provides a force for the first ball 62 to move towards the first nipple 2, so that the first ball 62 can disconnect the connection between the first nipple 2 and the first needle assembly 7, the first spring 63 is compressed under the pressure from the first ball 62 during injection, the liquid medicine flows to the first needle assembly 7 from a passage in the first nipple 2, and after the injection is finished, the first spring 63 is restored, pressing the first ball 62 on the channel of the first teat 2, disconnecting the connection channel between the first teat 2 and the first needle assembly 7; furthermore, the first needle assembly 7 is composed of a connecting hose 71, a needle holding handle 72 and a hollow steel needle 73 which are connected in sequence, the connecting hose 71, the needle holding handle 72 and the hollow steel needle 73 are communicated with each other, one end of the connecting hose 71, which is far away from the needle holding handle 72, is fixedly connected with the other end of the first check groove 64, and because a little shaking phenomenon can occur to the needle cylinder 1 in the liquid drawing process and the injection process, unnecessary pain can be brought to a patient easily, therefore, the connecting hose 71 is arranged between the hollow steel needle 73 and the first check valve for communication, the occurrence of the above situation can be avoided, and the needle holding handle 72 can facilitate the hollow steel needle 73 to penetrate into the subcutaneous part of the patient or a medicine bottle, a medicine bag and the like; furthermore, the first ball 62 is made of medical silica gel material, compared with common metal material, the medical silica gel material has certain elasticity and flexibility, and can be simultaneously subjected to the elasticity of the first spring 63 and the negative pressure from the inside of the syringe 1 during liquid pumping, so that deformation is generated, the first ball can be more effectively attached to the first nipple 2, and the backflow prevention effect is better; further, 2 surfaces of first nipple are equipped with the external screw thread, and first check groove 64 internal surface is equipped with the internal thread with 2 looks adaptations of first nipple, the first nipple 2 of first check groove 64 threaded connection, threaded connection's mode can make its installation more stable, first check groove 64 also can directly cup joint through interference fit's mode with first nipple 2.

Preferably, the second check valve 8 assembly comprises a second fixing sleeve 81, a second ball 82 and a second spring 83, a second check groove 84 is formed in the second fixing sleeve 81, one end of the second check groove 84 is detachably sleeved on the second nipple 5, the other end of the second check groove 84 is fixedly connected with the second needle assembly 9, the second ball 82 is located in the second check groove 84, the second spring 83 is located between the second ball 82 and the second nipple 5, and provides a force for the second ball 82 to move towards the other end of the second check groove 84, so that the second ball 82 can disconnect the connection between the second nipple 5 and the second needle assembly 9, negative pressure is generated in the syringe 1 during liquid extraction, the second ball 82 moves the second spring 83 to compress by the negative pressure in the direction of the second spring 83, the liquid medicine flows from the second needle assembly 9 into the syringe 1, and after injection is finished, the second spring 83 is restored, pressing the second ball 82 on the channel of the second needle assembly 9, disconnecting the connection channel between the second nipple 5 and the second needle assembly 9; furthermore, the second ball 82 is made of medical silica gel material, and can be simultaneously subjected to the elastic force of the second spring 83 and the thrust from the inside of the syringe 1 during injection, so that deformation occurs, the second ball can be more effectively attached to the second needle assembly 9, the backflow prevention effect is better, and the second needle assembly 9 and the first needle assembly 7 have the same structure; further, 5 surfaces of second nipple are equipped with the external screw thread, and second check groove 84 internal surface is equipped with the internal thread with 5 looks adaptations of second nipple, second check groove 84 threaded connection second nipple 5, and threaded connection's mode can make its installation more stable, second check groove 84 also can directly cup joint through interference fit's mode with second nipple 5.

Clinically the commonly used large dose liquid is more, need 100ml aidi injection if general a bag of liquid, and the aidi injection is one 10ml, if with ordinary syringe, then need repeat to pierce 10 times in liquid medicine bag and the medicine bottle, 5-fluorouracil more than 150ml of commonly used time, and 5-fluorouracil is one 10ml, consequently need repeat to pierce 15 times in liquid medicine bag and the medicine bottle, can improve medical personnel's intensity of labour like this, if adopt the utility model discloses inject, then only need pierce first syringe needle subassembly 7 in the liquid medicine bag, pierce second syringe needle subassembly 9 in the medicine bottle, then push-and-pull push rod 3 can realize the aversion of liquid medicine, when liquid medicine was taken out in the medicine bottle, only need pierce the second syringe needle subassembly in the new medicine bottle can.

All the above-mentioned preferred schemes can be freely combined for use, the above-mentioned embodiments are the preferred embodiments of the present invention, which are only used for convenient explanation of the present invention, it is not right to make the limitation of the present invention in any form, and any person who commonly knows is in the technical field, if in the scope of the technical features of the present invention, the present invention is utilized to make the equivalent embodiment of local change or modification, and the technical features of the present invention are not separated, and all the technical features of the present invention still belong to the scope of the technical features of the present invention.

Claims

1. An injector capable of injecting various medicaments comprises a needle cylinder (1), wherein one end of the needle cylinder (1) is provided with a first nipple (2), a push rod (3) is arranged in the needle cylinder (1), and one end, close to the first nipple (2), of the push rod (3) is provided with a piston (4); the method is characterized in that: one end that cylinder (1) is close to first nipple (2) is equipped with second nipple (5) that set up perpendicularly with cylinder (1), first nipple (2) detachably has cup jointed and is used for preventing external liquid from flowing into first check valve subassembly (6) of cylinder (1) from first nipple (2), first check valve subassembly (6) fixedly connected with first needle subassembly (7), second nipple (5) detachably has cup jointed and is used for preventing liquid in cylinder (1) from flowing out external second check valve (8) from second nipple (5), second check valve (8) subassembly fixedly connected with second needle subassembly (9).

2. The syringe according to claim 1, wherein said syringe further comprises: first check valve subassembly (6) comprise first fixed sleeve (61), first ball (62), first spring (63), be equipped with first check groove (64) in first fixed sleeve (61), first check groove (64) one end detachably cup joints on first nipple (2), first check groove (64) other end fixed connection first needle subassembly (7), first ball (62) are located first check groove (64), first spring (63) are located between first ball (62) and the first check groove (64) other end, provide a power that moves towards first nipple (2) direction for first ball (62), make first ball (62) can break off being connected between first nipple (2) and first needle subassembly (7).

3. The syringe according to claim 2, wherein: the first needle assembly (7) is composed of a connecting hose (71), a needle holding handle (72) and a hollow steel needle (73) which are sequentially connected, the connecting hose (71), the needle holding handle (72) and the hollow steel needle (73) are communicated with each other, and one end of the connecting hose (71) far away from the needle holding handle (72) is fixedly connected with the other end of the first check groove (64) and is communicated with the other end.

4. The syringe according to claim 2, wherein: the first ball (62) is made of medical silica gel materials.

5. The syringe according to claim 1, wherein said syringe further comprises: the second check valve (8) assembly is composed of a second fixing sleeve (81), a second ball (82) and a second spring (83), a second check groove (84) is formed in the second fixing sleeve (81), one end of the second check groove (84) is detachably sleeved on the second nipple (5), the other end of the second check groove (84) is fixedly connected with the second needle assembly (9), the second ball (82) is located in the second check groove (84), the second spring (83) is located between the second ball (82) and the second nipple (5), a force moving towards the other end of the second check groove (84) is provided for the second ball (82), and the second ball (82) can break off connection between the second nipple (5) and the second needle assembly (9).

6. An injector according to claim 5, wherein: the second ball (82) is made of medical silica gel materials.