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Pre-subpackaging injector

A syringe and pre-packaging technology, which is applied in the directions of syringes, hypodermic injection devices, infusion sets, etc., can solve the problems of not being able to identify whether the syringe has been used by a straight tube, affecting work efficiency, and troublesome injection operations, and achieving simple structure and improved performance. The effect of safety and easy operation

Inactive Publication Date: 2021-03-09
SHANGHAI CHUANG HONG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing syringes are manually injected, and the liquid medicine is temporarily introduced into the syringe during injection, which makes the injection operation more troublesome and affects work efficiency; moreover, most of the syringes are disposable products, but the existing The syringe does not have a straight tube to identify whether the syringe has been used, so there is a risk of repeated use and cross-infection; especially in the injection process of animal vaccines, it is very inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] as attached figure 1 As shown, a pre-packed syringe provided for an embodiment of the present invention includes a syringe 1 and a piston 2, and the pre-packed syringe also includes:

[0032] An elastic member 4 for pushing the piston 2 to move in the syringe 1, so that the liquid medicine 3 in the syringe 1 is injected; and

[0033] When the elastic member 4 is compressed, the position-limiting assembly 5 that limits the position of the piston 2 .

[0034] Specifically, the syringe 1 is a syringe 1 with a closed bottom, the elastic member 4 is located between the piston 2 and the bottom of the syringe 1 , and the dispensing liquid 3 is located between the piston 2 and the injection end of the syringe 1 . The principle of use of the pre-packed syringe of this embodiment is as follows: by adjusting the limit assembly 5, the piston 2 is in a movable state from the limit of the limit assembly 5. At this time, the compressed elastic member 4 rebounds and pushes the piston....

Embodiment 2

[0046] as attached figure 2 As shown, a pre-packed syringe provided by an embodiment of the present invention, on the basis of the pre-packed syringe in Example 1, the pre-packed syringe also has the following technical characteristics:

[0047] The piston 2 includes:

[0048] The first piston block 21; the first piston block 23 is provided with a piston rod 22;

[0049] The second piston block 23; the second piston block 23 is provided with a piston groove 24 matching the piston rod 22; the second piston block 23 is provided with a negative pressure chamber 25;

[0050] The prepacked syringe also includes a conduction assembly for conducting the negative pressure chamber 25 with the piston groove 25 .

[0051] Specifically, the pre-packed syringe technology provided in Example 1 realizes the automatic injection of the subpackaged medicinal solution 3, while the deposit of the subpackaged medicinal solution 3 needs to be completed with corresponding professional equipment. ...

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Abstract

The invention is suitable for the technical field of pre-subpackaging injectors, and provides a pre-subpackaging injector. The injector comprises a needle cylinder, a needle head, a piston, a sealingsleeve, an elastic piece used for pushing the piston to move in the needle cylinder so as to inject out subpackaged liquid medicine in the needle cylinder, and a limiting assembly used for limiting the position of the piston when the elastic piece is compressed. The injector is simple in structure and convenient to operate; the automatic injection effect can be achieved, so that the workload is reduced; meanwhile, it is guaranteed that the pre-subpackaging injector can only be used once, so that the problem of cross infection caused by misuse of the injector is avoided; secondly, only one-timeliquid medicine adsorption can be realized, so that the use safety of the pre-subpackaging injector is further improved; and moreover, the sealing sleeve can be used for sealing, subpackaging and storing the liquid medicine after the liquid medicine is sucked into the needle cylinder, so that the subpackaged liquid medicine in the pre-subpackaging injector is effectively prevented from being polluted.

Description

technical field [0001] The invention belongs to the technical field of pre-packed syringes, in particular to a pre-packed syringe. Background technique [0002] Syringe is a common medical appliance. As early as the 15th century, Italian Catinel proposed the principle of syringe, which mainly uses a needle to extract or inject gas or liquid. The syringe mainly includes three parts: a syringe, a needle and a push rod, wherein the syringe stores the liquid medicine, the needle penetrates into the blood vessel of the patient, and the push rod pushes the liquid medicine into the body of the patient or animal to achieve injection. [0003] At present, most of the existing syringes are manually injected, and the liquid medicine is temporarily introduced into the syringe during injection, which makes the injection operation more troublesome and affects work efficiency; moreover, most of the syringes are disposable products, but the existing The syringe cannot be straightened to id...

Claims

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Application Information

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IPC IPC(8): A61M5/178A61M5/31
CPCA61M5/178A61M5/1782A61M5/31A61M2005/3114
Inventor 韩相敏谭垂汉沈明志马晶晶高俊锋赖志吴碧清袁娟
Owner SHANGHAI CHUANG HONG BIOTECH
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