CN219090591U

CN219090591U - Double-tube injection device

Info

Publication number: CN219090591U
Application number: CN202222875278.6U
Authority: CN
Inventors: 武美娜
Original assignee: Xixian New Area Zhima Conversion Medical Technology Co ltd
Current assignee: Xixian New Area Zhima Conversion Medical Technology Co ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-05-30
Anticipated expiration: 2032-10-29

Abstract

The utility model discloses a double-tube injection device, and belongs to the technical field of medical injectors. The device comprises a pipe body, wherein a partition plate A is arranged in the pipe body, the partition plate A divides the pipe body into a first cavity and a second cavity, piston rods are arranged in the first cavity and the second cavity, the end parts of the piston rods extend to the outer side of the pipe body, and limiting assemblies are arranged at the end parts of the two piston rods; the utility model respectively sends gel liquid and gel forming liquid into the first cavity or the second cavity, and the two piston rods simultaneously move during injection through the arrangement of the limiting component, so that the gel liquid and the gel forming liquid simultaneously enter an injection position, gel is formed at the injection position, and waste caused by the difference of temperature and time when the gel liquid and the gel forming liquid are respectively injected is avoided.

Description

Double-tube injection device

Technical Field

The utility model relates to the technical field of medical syringes, in particular to a double-tube injection device.

Background

Syringes are a common medical device. The syringe can be used for injecting or extracting gas or liquid by a needle, and can also be used for injecting medical equipment, containers, such as scientific instruments in chromatography, through a rubber diaphragm, but the current syringes are mostly single barrels, and synchronous injection administration cannot be realized for medicines and gels with two components.

When injecting gel solution and gel forming solution, the two injection sites need to be injected simultaneously, if two needle tubes are used for injection respectively, the gel solution or the gel forming solution is easy to waste due to the difference of temperature and time, and the injection effect is poor, so we propose a double-tube injection device.

Disclosure of Invention

The present utility model is directed to a double injection device for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the double-tube injection device comprises a tube body, wherein a partition plate A is arranged in the tube body, the partition plate A divides the tube body into a first chamber and a second chamber, piston rods are arranged in the first chamber and the second chamber, the end parts of the piston rods extend to the outer side of the tube body, and limit assemblies are arranged at the end parts of the two piston rods;

the medicine discharging needle is arranged at the bottom of the tube body, a partition board B is arranged in the medicine discharging needle, the partition board B divides the interior of the medicine discharging needle into two medicine discharging channels, and the two medicine discharging channels are respectively communicated with the first cavity and the second cavity.

Preferably, the end part of the medicine outlet needle is provided with a sealing plug B matched with the medicine outlet needle, medicine inlet pipes are arranged at the bottoms of the first cavity and the second cavity and positioned at the two sides of the medicine outlet needle, and the medicine inlet pipes are provided with sealing plugs A matched with the medicine inlet pipes.

Preferably, the limiting component comprises a telescopic rod, one end of the telescopic rod is rotationally connected with the top of one piston rod, a limiting block is arranged on the top of the other piston rod, and the telescopic rod is clamped with the limiting block.

Preferably, the telescopic link includes connecting rod A and connecting rod B, the installation chamber has been seted up to connecting rod A one side, be provided with the spring in the installation chamber, connecting rod B be located the one end of installation intracavity with spring coupling, connecting rod B outside tip is provided with the fixture block, stopper one side seted up with the draw-in groove that the fixture block matches.

Preferably, the piston rod comprises a connecting rod portion and a piston portion, the connecting rod portion extending to the outside of the tube, the two piston portions being mated with the first and second chambers respectively.

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

according to the utility model, the gel liquid and the gel forming liquid are respectively sent into the first cavity or the second cavity through the two medicine feeding pipes, the two piston rods are simultaneously moved through the arrangement of the limiting component, the telescopic rod is separated from the limiting block when medicine is injected into the shell, the telescopic rod is rotated to be clamped with the limiting block after the medicine is injected, a certain tensile force is provided for the connecting rod B through the arrangement of the spring, the clamping block is tightly contacted with the clamping groove on one side of the limiting block, the stability of connection is improved, and then the telescopic rod is downwards pressed, so that the two piston rods can be simultaneously moved downwards, the gel liquid and the gel forming liquid are simultaneously moved into the injection position, and the gel is formed at the injection position, so that the waste caused by the difference of temperature and time when the gel liquid and the gel forming liquid are respectively injected is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the utility model at A;

FIG. 4 is an enlarged schematic view of the present utility model at B.

The reference numerals in the figures illustrate: 1. a tube body; 101. a first chamber; 102. a second chamber; 2. a partition plate A; 3. a piston rod; 4. a limit component; 401. a telescopic rod; 402. a limiting block; 403. a connecting rod A; 404. a connecting rod B; 405. a clamping block; 5. a medicine outlet needle; 6. a partition board B; 7. a sealing plug A; 8. a sealing plug B; 9. a medicine feeding tube.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-4, a double-tube injection device comprises a tube body 1, wherein a partition board A2 is arranged in the tube body 1, the partition board A2 divides the tube body 1 into a first chamber 101 and a second chamber 102, the first chamber 101 and the second chamber 102 are respectively used for placing gel solution and gel forming solution, piston rods 3 are arranged in the first chamber 101 and the second chamber 102, the end parts of the piston rods 3 extend to the outer side of the tube body 1, limit components 4 are arranged at the end parts of the two piston rods 3, and the limit components 4 are used for enabling the two piston rods 3 to move downwards simultaneously;

the bottom of the tube body 1 is provided with a medicine outlet needle head 5, a partition board B6 is arranged in the medicine outlet needle head 5, the partition board B6 divides the interior of the medicine outlet needle head 5 into two medicine outlet channels, the two medicine outlet channels are respectively communicated with the first cavity 101 and the second cavity 102, the two medicine outlet channels are formed in the medicine outlet needle head 5 through the arrangement of the partition board B6, so that gel liquid and gel forming liquid are respectively output at the same time, the gel liquid and the gel forming liquid can not be contacted in the medicine outlet process, and the gel liquid and the gel forming liquid can be contacted to form gel after entering an injection position.

According to the utility model, the end part of the medicine outlet needle 5 is provided with the sealing plug B8 matched with the medicine outlet needle, when the medicine outlet needle 5 is not used, the medicine outlet needle is sealed through the sealing plug B8, air is prevented from entering, medicine inlet pipes 9 are arranged at the bottoms of the first cavity 101 and the second cavity 102 and positioned at two sides of the medicine outlet needle 5, the medicine inlet pipes 9 are provided with the sealing plug A7 matched with the medicine inlet pipes, when the medicine inlet pipes 9 are not used, the medicine inlet pipes 9 are sealed through the sealing plug A7, when medicines are required to be injected into the first cavity 101 and the second cavity 102, the sealing plug A7 is removed, and the medicines are fed into the first cavity 101 or the second cavity 102 through the medicine inlet pipes 9.

According to the utility model, the limiting component 4 comprises the telescopic rod 401, one end of the telescopic rod 401 is rotationally connected with the top of one piston rod 3, the top of the other piston rod 3 is provided with the limiting block 402, the telescopic rod 401 is clamped with the limiting block 402, when medicines are injected into the shell 1, the telescopic rod 401 is stretched, then the telescopic rod 401 is rotated to be separated from the limiting block 402, the two piston rods 3 can be independently moved, when gel liquid and gel forming liquid are simultaneously injected, the telescopic rod 401 is clamped with the limiting block 402, and then the telescopic rod 401 is downwards pressed, so that the two piston rods 3 can be simultaneously moved downwards, and the gel liquid and the gel forming liquid simultaneously enter an injection position.

According to the utility model, the telescopic rod 401 comprises a connecting rod A403 and a connecting rod B404, one side of the connecting rod A403 is provided with a mounting cavity, a spring is arranged in the mounting cavity, one end of the connecting rod B404 positioned in the mounting cavity is connected with the spring, the end part of the outer side of the connecting rod B404 is provided with a clamping block 405, one side of the limiting block 402 is provided with a clamping groove matched with the clamping block 405, and a certain tensile force is provided for the connecting rod B404 through the arrangement of the spring, so that the clamping block 405 is in close contact with the clamping groove on one side of the limiting block 402, and the stability of connection is improved.

In a possible embodiment, the top of the clamping block 405 is provided with an adjusting screw, so that the height of the clamping block 405 can be adjusted, and when a small difference exists in the height between the piston rods 3, the height of the clamping block 405 is adjusted, so that the clamping block can be accurately clamped with the limiting block 402.

In the present utility model, the piston rod 3 includes a connecting rod portion extending to the outside of the tube body 1 and a piston portion respectively mated with the first chamber 101 and the second chamber 102.

Working principle: when the device is used, gel liquid and gel forming liquid are respectively sent into the first cavity 101 or the second cavity 102 through the two medicine feeding pipes 9, the telescopic rod 401 is separated from the limiting block 402 when medicine is injected into the first cavity 101 or the second cavity 102, the telescopic rod 401 is rotated to be clamped with the limiting block 402 after the medicine is injected, a certain tensile force is provided for the connecting rod B404 through the arrangement of a spring, the clamping block 405 is tightly contacted with a clamping groove on one side of the limiting block 402, the stability of connection is improved, then the telescopic rod 401 is downwards pressed, and the two piston rods 3 can simultaneously downwards move, so that the gel liquid and the gel forming liquid simultaneously enter an injection position, gel is formed at the injection position, and waste caused by the difference of temperature and time when the gel liquid and the gel forming liquid are respectively injected is avoided.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Double injection device comprising a tube body (1), characterized in that: a partition plate A (2) is arranged in the pipe body (1), the partition plate A (2) divides the pipe body (1) into a first chamber (101) and a second chamber (102), piston rods (3) are arranged in the first chamber (101) and the second chamber (102), the end parts of the piston rods (3) extend to the outer side of the pipe body (1), and limiting assemblies (4) are arranged at the end parts of the two piston rods (3);

the medicine discharging needle is characterized in that a medicine discharging needle head (5) is arranged at the bottom of the tube body (1), a partition board B (6) is arranged in the medicine discharging needle head (5), the partition board B (6) divides the interior of the medicine discharging needle head (5) into two medicine discharging channels, and the two medicine discharging channels are respectively communicated with the first cavity (101) and the second cavity (102).

2. A double injection device according to claim 1, characterized in that: the end part of the medicine outlet needle head (5) is provided with a sealing plug B (8) matched with the medicine outlet needle head, medicine inlet pipes (9) are arranged on two sides of the medicine outlet needle head (5) at the bottoms of the first cavity (101) and the second cavity (102), and sealing plugs A (7) matched with the medicine inlet pipes are arranged on the medicine inlet pipes (9).

3. A double injection device according to claim 1, characterized in that: the limiting component (4) comprises a telescopic rod (401), one end of the telescopic rod (401) is rotationally connected with the top of one piston rod (3), a limiting block (402) is arranged on the top of the other piston rod (3), and the telescopic rod (401) is clamped with the limiting block (402).

4. A double injection device according to claim 3, characterized in that: the telescopic rod (401) comprises a connecting rod A (403) and a connecting rod B (404), wherein an installation cavity is formed in one side of the connecting rod A (403), a spring is arranged in the installation cavity, one end of the connecting rod B (404) located in the installation cavity is connected with the spring, a clamping block (405) is arranged at the outer side end of the connecting rod B (404), and a clamping groove matched with the clamping block (405) is formed in one side of the limiting block (402).

5. A double injection device according to claim 1, characterized in that: the piston rod (3) comprises a connecting rod part and a piston part, the connecting rod part extends to the outer side of the pipe body (1), and the two piston parts are matched with the first chamber (101) and the second chamber (102) respectively.