CN205924238U - Animal injector - Google Patents

Abstract

The utility model discloses an animal syringe, which comprises an injection tube and a push rod. The left end of the syringe is provided with an injection needle, and the left end of the push rod is provided with a piston matching the injection tube. The left and right sides of the injection tube respectively form a drug injection area and an air cavity. The right end of the injection tube is provided with a sealing plate, and the sealing plate is provided with a hose communicating with the air cavity. Features hand grip airbags. The beneficial effects of the utility model are very obvious: the structure is simple and stable, the cost is low, the installation, disassembly and use are convenient, the work efficiency is high, the safety performance and experimental accuracy are good, and it can be used repeatedly.

Description

an animal syringe

technical field

The utility model relates to the technical field of medical instruments, in particular to a structure of an animal injector.

Background technique

In the process of pathological research, researchers often need animal experiments. Intravenous administration of drugs to animals is a type of pathological research. Currently, researchers generally position the animal with a clamp, and then inject the drug into the animal's muscle tissue through a syringe. In this process, the animal clamps are increased, the cost is high, and the clamping of the animals is a waste of time, and there is also the problem of low work efficiency. However, the structure of the general injection device in the prior art does not effectively solve the above problems. For example, Chinese Patent Announcement No. CN 2039204 U, announced on June 14, 1989, the name of the invention is the airbag type disposable ampoule syringe. The combined innovation of structures such as support ring and air bag replaces the piston structure of the original syringe. The syringe has the characteristics of low cost, but when the patent case is used for intravenous injection in animal experiments, it is still necessary to install the animal first. There are the problems of inconvenient use and low work efficiency due to the location of the clip. Another example is the Chinese patent authorization announcement number CN 102613102 B, the date of the authorization announcement is March 02, 2016. The name of the invention is an animal syringe. This patent case discloses a structure of an animal syringe. The combined innovation of the structure realizes that the animal syringe has the characteristics of low cost, but when the patent case is used for intravenous injection in animal experiments, it is still necessary to clamp and position the animal first, which is inconvenient to use and low in work efficiency The problem. The utility model provides a simple and stable structure, low cost, convenient installation, disassembly and use, high work efficiency, safety performance and experimental High accuracy, animal syringes that can be used repeatedly.

Contents of the invention

The utility model solves the problems that the structure of the general injection device in the prior art does not effectively solve the problems of high cost, low work efficiency and inconvenient use. The combined innovation of the hand-held airbag and other structures realizes that the animal syringe has the characteristics of simple and stable structure, low cost, convenient installation, disassembly and use, high work efficiency, good safety performance and experimental accuracy, and can be used repeatedly.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an animal syringe, including a syringe and a push rod, the left end of the syringe is provided with an injection needle, and the left end of the push rod is provided with a needle suitable for the syringe. The matching piston is characterized in that, on the left and right sides of the piston, the injection tube respectively forms a drug injection area and an air cavity, and the right end of the injection tube is provided with a sealing plate, which is connected with the air cavity. A flexible hose is provided at the end of the hose with a hand-held airbag.

When in use, when the experimental animal is quiet, throw the animal syringe directly to the experimental animal, the injection needle is inserted into the muscle tissue of the animal, the hand-held air bag is compressed, the compressed air enters the air cavity through the hose, and the pressure of the air cavity increases. Push the piston to move to the left, and the liquid drug in the drug injection area is injected into the muscle tissue of the animal through the injection needle. After the drug injection is completed, the injection needle is pulled out, the air bag is released, and the piston resets. During the throwing process of the animal syringe, as long as the length of the hose is long enough, the injection needle will not fall off due to animal stimulation activities. During the injection process, the drug is completely injected into the animal body, and the injection process will not be interrupted. Good stability; the hand-held airbag has a simple structure. After the injection needle is inserted into the animal muscle tissue, the hand-held airbag is compressed to inject the drug into the animal without operating the push rod, which is convenient to use; The utility model adopts the throwing method to insert the injection device into the animal body, avoiding the contact between the researcher and the animal, the safety performance is better, and the clamp and the animal clamping process are also omitted, and the cost is lower and the work efficiency is higher. high feature.

Preferably, the left end of the injection tube is provided with a counterweight connected with the injection needle. The counterweight has a simple structure and increases the weight of the injection device. During the throwing process of the injection device, the inertial force is increased to ensure that the injection needle can pierce the animal's skin tissue and insert into the animal's muscle tissue, improving the disposable The success rate of throwing further improves work efficiency.

Preferably, the weight block is threadedly connected with the injection pipe. The structure has the characteristics of convenient installation and disassembly, realizes that the animal syringe can be used repeatedly, and further reduces the cost.

Preferably, the animal injector further includes a needle seat suitable for the injection needle, and the needle seat is threadedly connected with the counterweight. The needle seat further increases the weight of the injection device, increases the inertial force, and improves the success rate of one-time throwing; at the same time, the threaded connection structure between the needle seat and the counterweight makes it easy to install and disassemble the needle seat and the counterweight.

Preferably, the air cavity of the injection tube is provided with a guide sleeve matched with the push rod. The guide sleeve has a simple structure and has a guiding effect on the push rod to ensure the stability of the injection process.

Preferably, the guide sleeve and the injection tube are integrally structured. This structure saves the installation process of the guide sleeve, further reducing the cost.

Preferably, the air cavity is provided with an elastic airbag connected with the hose, the left end of the elastic airbag is connected with the push rod, and the right end of the elastic airbag is connected with the sealing plate. The elastic airbag has a simple structure and can be a telescopic airbag or a general flexible airbag. The telescopic airbag can increase the guiding effect on the push rod and improve the stability of the injection process; the flexible airbag can gradually fill up the space of the air cavity, and the injection of the injection needle The speed is slower, the stimulation to animals is less, and the accuracy of the experiment is better.

Preferably, the hose is provided with a shut-off valve. After the one-time injection of the medicine is completed, closing the stop valve can prevent the injection needle from withdrawing the medicine or the blood of the animal, and the accuracy of the experiment is better.

Due to the adoption of the above-mentioned technical scheme, the animal syringe provided by the utility model has such beneficial effects: through the combination and innovation of structures such as injection tube, push rod, injection needle, hose and hand-held air bag, a simple and stable structure is provided. , low cost, convenient installation, disassembly and use, high work efficiency, good safety performance and experimental accuracy, and an animal syringe that can be used repeatedly.

Description of drawings

Accompanying drawing 1 is the first structural representation of the utility model;

Accompanying drawing 2 is the second structure schematic diagram of the present utility model.

In the figure: 1-Injection tube, 1.1-Guide sleeve, 2-Push rod, 3-Injection needle, 4-Piston, 5-Drug injection area, 6-Air cavity, 7-Sealing plate, 8-Hose, 9- Holding the airbag, 10-counterweight, 11-needle seat, 12-elastic airbag, 13-stop valve.

detailed description

Referring to the accompanying drawings, the utility model is described in further detail.

Embodiment 1: In conjunction with accompanying drawing 1, a kind of animal syringe comprises injection tube 1, push rod 2 and needle seat 11, and the left end of syringe is provided with injection needle 3, and needle seat 11 is matched with injection needle 3, and push rod 2 The left end of the injection tube 1 is provided with a piston 4 that is compatible with the injection tube 1. On the left and right sides of the piston 4, the injection tube 1 forms a drug injection area 5 and an air cavity 6 respectively. The right end of the injection tube 1 is provided with a sealing plate 7, the sealing plate 7 is provided with a hose 8 communicating with the air cavity 6, the end of the hose 8 is provided with a hand-held airbag 9, and the left end of the injection tube 1 is provided with a counterweight 10 connected with the injection needle 3, and the counterweight 10 It is threadedly connected with the injection tube 1, and the needle base 11 is threaded with the counterweight 10. The air chamber 6 of the injection tube 1 is provided with a guide sleeve 1.1 that is compatible with the push rod 2, and the guide sleeve 1.1 is integrated with the injection tube 1. , The hose 8 is provided with a shut-off valve 13 .

Embodiment 2, in conjunction with accompanying drawing 2, a kind of animal injector, comprises injection tube 1, push rod 2 and needle seat 11, and the left end of syringe is provided with injection needle 3, and needle seat 11 is matched with injection needle 3, and push rod 2 The left end of the injection tube 1 is provided with a piston 4 that is compatible with the injection tube 1. On the left and right sides of the piston 4, the injection tube 1 forms a drug injection area 5 and an air cavity 6 respectively. The right end of the injection tube 1 is provided with a sealing plate 7, the sealing plate 7 is provided with a hose 8 communicating with the air cavity 6, the end of the hose 8 is provided with a hand-held airbag 9, and the left end of the injection tube 1 is provided with a counterweight 10 connected with the injection needle 3, the counterweight 10 It is threadedly connected with the injection tube 1, the needle seat 11 is threaded with the counterweight 10, and the air cavity 6 is provided with an elastic air bag 12 connected with the hose 8, the left end of the elastic air bag 12 is connected with the push rod 2, and the elastic air bag The right end of 12 links to each other with sealing plate 7, and hose 8 is provided with stop valve 13.

The two specific embodiments described above have introduced the utility model in detail. In this paper, specific examples are used to illustrate the principle and implementation of the utility model, and the description of the examples is only used to help understand the core idea of the utility model. It should be pointed out that for those of ordinary skill in the art, on the premise of not departing from the core idea of the utility model, some modifications can also be made to the utility model, such as the technical parameters of the injection tube, push rod and hand-held airbag, etc. Amendments or several combinations of claims should fall within the protection scope of the claims of the present invention.

Claims (8)

1. An animal syringe, comprising an injection tube (1) and a push rod (2), the left end of the syringe is provided with an injection needle (3), and the left end of the push rod (2) is provided with a needle suitable for the injection tube (1). The matched piston (4), is characterized in that, on the left and right sides of the piston (4), the injection tube (1) respectively forms a drug injection area (5) and an air cavity (6), and the injection tube ( 1) There is a sealing plate (7) on the right end, and a hose (8) connected to the air cavity (6) is arranged on the sealing plate (7), and the end of the hose (8) is provided with a hand-held airbag (9). 2 . The animal syringe according to claim 1 , characterized in that, the left end of the injection tube ( 1 ) is provided with a counterweight ( 10 ) connected with the injection needle ( 3 ). 3. The animal injector according to claim 2, characterized in that the weight (10) is threadedly connected with the injection tube (1). 4. The animal injector according to claim 2, characterized in that, the animal injector further comprises a needle seat (11) compatible with the injection needle (3), and the needle seat (11) is compatible with the matching Weight (10) is threaded. 5 . The animal syringe according to claim 1 , characterized in that, the air chamber ( 6 ) of the injection tube ( 1 ) is provided with a guide sleeve ( 1.1 ) matching the push rod ( 2 ). 6. The animal syringe according to claim 5, characterized in that, the guide sleeve (1.1) and the injection tube (1) are integrally structured. 7. The animal syringe according to claim 1, characterized in that, the air cavity (6) is provided with an elastic air bag (12) in communication with the hose (8), and the elastic air bag (12) The left end of the elastic air bag (12) links to each other with the push rod (2), and the right end of the elastic air bag (12) links to each other with the sealing plate (7). 8. The animal injector according to claim 1, characterized in that, the hose (8) is provided with a shut-off valve (13).