Core bar component of injector and injector installing it

A technology of a syringe and a syringe barrel, applied in the field of medical devices, can solve the problems such as the inability to absorb the medicinal liquid again, the inability to solve the problems of multi-person injection, self-destruction, etc., and achieve the effect of being reused
CN101204598AInactive Publication Date: 2008-06-25魏国
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Patent Information

Authority / Receiving Office
CN ¡ China
Patent Type
Applications(China)
Current Assignee / Owner
魏国
Publication Date
2008-06-25
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

The invention relates to an injector core bar component and an injector employed by the component. The core bar component comprises a sealing plug, a sealing plug base, a spring, a push-pull rod (a tail end of the push-pull rod is arranged with a small sealing plug) and an elastic bayonet lock. Under an interaction of the spring and the elastic bayonet lock, the sealing plug base can be steadily combined with the push-pull rod through the compression and bounce of the spring, press and bounce of the elastic bayonet lock and insertion and extraction of the small sealing plug. An effective automatic control on absorption and effluence of parenteral solution can be realized. In the light of an injector nozzle plug (cover), the injector can not be used secondly. The invention not only can automatically control reusage of the injector, but also can provide safety and reliability, rational design, simple structure, convenient operation and low cost, and the invention can be widely popularized.
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Description

technical field

[0001] The invention relates to a commonly used medical device, specifically a syringe plunger assembly and a syringe equipped with the assembly. The syringe equipped with the syringe plunger assembly is suitable for clinical injection in various medical institutions. technical background

[0002] In order to prevent virus cross-infection due to repeated use of syringes, disposable sterile syringes have been widely used. Although the disposable sterile syringes in the prior art are of various types and have different structures, most syringes use After that, it is still intact, which provides some criminals with an opportunity for secondary use. For example, the implementation standard commonly used by various medical institutions is the disposable sterile syringe of GB15810-2001. The syringe itself is intact after use, and each part still has the function of use, so it is very easy to reuse. The first use is realized by relying on the "Supervision and Manag...

Claims

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