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Disposable self-destroyable syringe

A self-destructing, disposable technology used in syringes, hypodermic devices, infusion sets, etc.

Active Publication Date: 2008-02-13
WUXI YUSHOU MEDICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this patent also has some deficiencies, as the self-destructing syringe can also be disassembled and reinstalled in a certain way, although it will cause water leakage during use, it feels like it can be used again, and it cannot be said that it has really achieved completeness. Disposable use, its structure needs to be further improved

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0024] With reference to the accompanying drawings, the disposable self-destructing syringe of the present invention comprises a needle point (1), a barrel (2), a core rod (3), a non-return member (7), a sealing plug (10) and a needle cover ( 14), it is provided with a ratchet slot (4), a limit-return step (5), a mounting hole (6), repetitive movement parts (11), (12) and a broken part (13) on the core rod (3) (See Figure 1), the non-return member (7) is provided with non-return stabs (8) and ratchets (9), and when assembled, the non-return member (7) enters the return-limiting step (5) through the mounting hole (6), There are ratchets (9) to withstand the back-limiting step (5), and then the sealing plug (10) is pushed into the bottom of the cylinder (2) (see Fig. 1 and Fig. 2).

[0025] When in use, pull back the core rod (3) to extract a small amount of l...

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Abstract

The present invention relates to a disposable self-destroying injector, which can pump full medicine liquid only for once. More particularly, after pumping full medicine liquid, a self-destroying part starts working during the course of injection, which can only be pushed forward and can never be pulled back. The disposable self-destroying injector cannot be used again by any manner. The disposable self-destroying injector includes a tip (1), a cylinder (2), a core rod (3), a nonreturn part (7), a seal plug (10) and a needle guard (14). The disposable self-destroying injector is characterized in that the core rod (3) is provided with a ratchet groove (4), return-limit steps (5), an installing hole (6), repeatedly motioning parts (11) and (12) and a destroying and breaking part (13); the nonreturn part (7) is provided with nonreturn spurs (8) and ratchets (9). The present invention is more applicable to a microinjection, a vaccination injection and an insulin injection which all have little residues. The operation of the present invention is simple and convenient, and the present invention can do self destroy just after one injection.

Description

technical field [0001] The invention relates to a medical syringe, more specifically to a disposable self-destructing syringe. Background technique [0002] At present, in order to prevent the cross-infection of iatrogenic diseases at home and abroad, the use of disposable self-destructing syringes has been required to achieve self-destructing effect structurally. For example, some self-destructing syringes known at home and abroad are mostly in the form of destroying the piston and core rod when the syringe is finished injecting the liquid medicine (that is, as long as there is a little liquid medicine), the piston cannot be destroyed and can be repeated. use. In June 2003, in order to improve the deficiencies of the above technologies, the company designed a disposable self-destructing syringe that self-destructs and takes effect from the beginning of injecting the medicinal solution, that is (a disposable self-destructing syringe that can only extract the medicinal solut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/50A61M5/31A61M5/178
Inventor 冯忠
Owner WUXI YUSHOU MEDICAL APPLIANCES
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