CN216629334U

CN216629334U - Injection gun with single injection and quantification functions

Info

Publication number: CN216629334U
Application number: CN202122893580.XU
Authority: CN
Inventors: 刘兵; 莫小龙
Original assignee: Nanjing Yunyida Industrial Design Co ltd
Current assignee: Nanjing Yunyida Industrial Design Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-31
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses an injection gun with a single-injection quantitative function, relates to the technical field of medical injectors, and aims to solve the problems that in the prior art, an injection gun used in a common hospital has poor control precision on the dosage of a medicament, and the dosage is easy to deviate during single injection. The inside of injection tube is provided with main medicament district and vice medicament district respectively, and main medicament district and vice medicament district all set up structure as an organic whole with the injection tube, the inside in main medicament district is provided with first piston, and first piston and injection tube sliding connection, the inside in vice medicament district is provided with the second piston, and second piston and injection tube sliding connection, the connecting rod is installed to the top of first piston, and connecting rod and first piston fixed connection, the top of connecting rod is provided with first pressure head, and first pressure head and connecting rod set up structure as an organic whole.

Description

Injection gun with single injection and quantification functions

Technical Field

The utility model relates to the technical field of medical injectors, in particular to an injection gun with a single-injection quantitative function.

Background

Syringes are a common medical device, primarily for drawing or injecting gas or liquid with a needle, and syringes may also be used for injecting through rubber septa in medical equipment, containers, scientific instruments such as in some chromatography.

Most of the existing injection guns used in hospitals are of a single-tube structure, when single quantitative injection is needed, a doctor completely controls the force, the medicine in a single tube is injected into a patient body, the medicine quantity is controlled very trouble, the accuracy degree is not high enough, so that the condition of excessive medicine is easily caused during single injection, and the use is not convenient enough; therefore, the market urgently needs to develop an injection gun with a single-injection quantitative function to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an injection gun with a single-injection quantitative function, and aims to solve the problems that the injection gun used in a common hospital in the background technology has poor control precision on the dosage of a medicament and the dosage is easy to deviate during single injection.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an injection gun with single injection ration function, includes the injection tube, the inside of injection tube is provided with main medicament district and vice medicament district respectively, and just main medicament district and vice medicament district all set up structure as an organic whole with the injection tube, the inside in main medicament district is provided with first piston, and first piston and injection tube sliding connection, the inside in vice medicament district is provided with the second piston, and second piston and injection tube sliding connection.

Preferably, a connecting rod is installed above the first piston and is fixedly connected with the first piston, a first pressure head is arranged above the connecting rod, and the first pressure head and the connecting rod are arranged into an integral structure.

Preferably, the sleeve pipe is installed to the top of second piston, and sleeve pipe and second piston fixed connection, sheathed tube top is provided with the second pressure head, and the second pressure head sets up structure as an organic whole with the sleeve pipe.

Preferably, a compression hopper is arranged below the injection tube, the compression hopper and the injection tube are arranged into an integral structure, a connecting plate is arranged inside the compression hopper, and the connecting plate and the compression hopper are arranged into an integral structure.

Preferably, the top of injection tube is provided with the handle, and the handle sets up structure as an organic whole with the injection tube, the outside of injection tube is provided with first scale and second scale respectively, and first scale and second scale all set up structure as an organic whole with the injection tube.

Preferably, a needle seat is installed below the compression hopper and is in threaded connection with the compression hopper, a needle head is arranged below the needle seat, and the needle head and the needle seat are arranged into an integral structure.

Compared with the prior art, the utility model has the beneficial effects that:

1. The utility model discloses a setting through main medicament district and vice medicament district, a large amount of medicaments are stored to main medicament district inside, a small amount of medicament is stored to vice medicament district inside, when initial injection, first piston and second piston sink simultaneously, inject the medicament to the patient, when the injection dosage of the single dose that will arrive soon, first piston will no longer remove, only inject the medicament of vice medicament district inside to the patient this moment, the medicament of vice medicament district inside is a small amount, during the injection, the control of dose is got up more conveniently, thereby the dose that injects out can accurate control, avoid the excessive condition of medicament to take place, make this injection gun use more reliably, it is more convenient.

2. The utility model discloses a through the setting of first scale and second scale, first scale is used for observing the stroke that first piston removed, and the second scale is used for observing the stroke that the second piston removed to can carry out audio-visual observation to first piston and second piston, make main medicament district and vice medicament district all can carry out independent injection work, and audio-visual observation piston removes, improves this injection gun's use convenience.

Drawings

FIG. 1 is a front elevation view of an injection gun of the present invention having a single shot dosing capability;

FIG. 2 is a cross-sectional view of a single shot dosing syringe of the present invention;

fig. 3 is an enlarged schematic view of the utility model at a.

In the figure: 1. an injection tube; 2. a compression hopper; 3. a needle seat; 4. a needle head; 5. a first scale; 6. a second scale; 7. a sleeve; 8. a connecting rod; 9. a first ram; 10. a second ram; 11. a handle; 12. a primary medicament region; 13. a secondary agent region; 14. a first piston; 15. a second piston; 16. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides an injection gun with single injection ration function, includes injection tube 1, and the inside of injection tube 1 is provided with main medicament district 12 and vice medicament district 13 respectively, and main medicament district 12 and vice medicament district 13 all set up structure as an organic whole with injection tube 1, and the inside in main medicament district 12 is provided with first piston 14,

first piston

14 and 1 sliding connection of injection tube, and the inside in vice medicament district 13 is provided with second piston 15,

second piston

15 and 1 sliding connection of injection tube.

Further, a connecting rod 8 is installed above the first piston 14, the connecting rod 8 is fixedly connected with the first piston 14, a first pressure head 9 is arranged above the connecting rod 8, the first pressure head 9 and the connecting rod 8 are of an integrated structure, the main medicament area 12 where the first piston 14 is located is large in stored medicament amount and used for main injection work, and during initial injection work, the medicament in the main medicament area 12 can be extruded through the first piston 14 to perform large-dose injection.

Further, sleeve pipe 7 is installed to second piston 15's top, sleeve pipe 7 and second piston 15 fixed connection, sleeve pipe 7's top is provided with second pressure head 10, second pressure head 10 sets up structure as an organic whole with sleeve pipe 7, the vice medicament district 13 storage and when the dose is little that second pressure head 10 belongs to, will use supplementary injection work, when a small amount of syringe needle at last, the inside medicament of vice medicament district 13 of accessible second piston 15 extrusion, carry out the microinjection, improve quantitative injection's precision.

Further, a compression hopper 2 is arranged below the injection tube 1, the compression hopper 2 and the injection tube 1 are arranged into an integral structure, a connecting plate 16 is arranged inside the compression hopper 2, the connecting plate 16 and the compression hopper 2 are arranged into an integral structure, and the connecting plate 16 is used for connecting the main medicament area 12 and the auxiliary medicament area 13, so that the injection tube 1 forms an integral structure.

Further, the top of injection tube 1 is provided with handle 11, and handle 11 sets up to a body structure with injection tube 1, and the outside of injection tube 1 is provided with first scale 5 and second scale 6 respectively, and first scale 5 and second scale 6 all set up to a body structure with injection tube 1, and first scale 5 is used for observing the stroke that first piston 14 removed, and second scale 6 is used for observing the stroke that second piston 15 removed.

Further, needle file 3 is installed to the below of compression fill 2, and needle file 3 and 2 threaded connection of compression fill, and the below of needle file 3 is provided with syringe needle 4, and syringe needle 4 sets up structure as an organic whole with needle file 3, connects needle file 3 and compression fill 2 through threaded connection's mode, improves the leakproofness and the firm degree of junction.

The working principle is as follows: when the injection syringe is used, firstly, the medicine is pumped into the main medicine area 12 and the auxiliary medicine area 13 through the first piston 14 and the second piston 15, the required medicine amount is obtained, then the injection is performed on a patient through the needle 4, at the moment, the first pressure head 9 and the second pressure head 10 are pressed simultaneously, the first piston 14 and the second piston 15 sink simultaneously, the moving stroke distance of the first piston 14 and the second piston 15 is observed through the first scale 5 and the second scale 6, when the injected medicine amount is up to the quantitative medicine amount, the first piston 14 does not move any more, at the moment, the second piston 15 is pressed downwards through the second pressure head 10 only, the medicine in the auxiliary medicine area 13 is extruded out, a small amount of slow injection is performed, the injection precision is improved, and the excessive injected medicine amount is avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An injection gun with single-shot dosing function, comprising an injection cartridge (1), characterized in that: the injection device is characterized in that a main medicament area (12) and an auxiliary medicament area (13) are respectively arranged in the injection tube (1), the main medicament area (12) and the auxiliary medicament area (13) are both integrated with the injection tube (1), a first piston (14) is arranged in the main medicament area (12), the first piston (14) is connected with the injection tube (1) in a sliding mode, a second piston (15) is arranged in the auxiliary medicament area (13), and the second piston (15) is connected with the injection tube (1) in a sliding mode.

2. An injection gun with single injection dosing function as claimed in claim 1, wherein: connecting rod (8) are installed to the top of first piston (14), and connecting rod (8) and first piston (14) fixed connection, the top of connecting rod (8) is provided with first pressure head (9), and first pressure head (9) and connecting rod (8) set up structure as an organic whole.

3. An injection gun with single injection dosing function as claimed in claim 1, wherein: sleeve pipe (7) are installed to the top of second piston (15), and sleeve pipe (7) and second piston (15) fixed connection, the top of sleeve pipe (7) is provided with second pressure head (10), and second pressure head (10) and sleeve pipe (7) set up structure as an organic whole.

4. An injection gun with single injection dosing as claimed in claim 1 wherein: the injection device is characterized in that a compression hopper (2) is arranged below the injection tube (1), the compression hopper (2) and the injection tube (1) are arranged into an integral structure, a connecting plate (16) is arranged inside the compression hopper (2), and the connecting plate (16) and the compression hopper (2) are arranged into an integral structure.

5. An injection gun with single injection dosing as claimed in claim 1 wherein: the top of injection tube (1) is provided with handle (11), and handle (11) and injection tube (1) set up structure as an organic whole, the outside of injection tube (1) is provided with first scale (5) and second scale (6) respectively, and first scale (5) and second scale (6) all set up structure as an organic whole with injection tube (1).

6. An injection gun with single injection dosing function as claimed in claim 4, wherein: needle file (3) are installed to the below of compression fill (2), and needle file (3) and compression fill (2) threaded connection, the below of needle file (3) is provided with syringe needle (4), and syringe needle (4) and needle file (3) set up structure as an organic whole.