Self-destructive safety medical needle

Abstract

The invention discloses a self-destructive safety medical needle, which comprises a protective housing (10) which is provided with an inner cavity (12), a needle seat (20) which can move in the inner cavity (12) in a reciprocating mode and is provided with a needle tube (22), and a catheter seat (28) which is mutually fastened with the needle seat (20), wherein stopping claw bodies (120) and retaining steps (122) are arranged on the protective housing (10); the retaining steps (122) are arranged on the wall of the inner cavity (12) of the protective housing (10); and limiting grooves (24), which are matched with the stopping claw bodies (120) in an abutting mode, and retaining end faces (26), which are matched with the retaining steps (122) in a mutually-locked mode, are correspondingly arranged on the needle seat (20). The self-destructive safety medical needle provided by the invention is exquisite in structure, and the self-destructive safety medical needle is high in intensity and firm in implementation of self-destructive pull-out preventing and push-out preventing; and in addition, both the protective housing and the needle seat are relatively simply structured and can be integrally molded, so that production is quite simplified, production difficulty is greatly reduced, cost is saved and the construction period is shortened, and a low defective percentage is guaranteed.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a self-destruction safety medical needle. Background technique [0002] Medical needles, which are used for infusion or blood collection, are commonly used medical devices. Ordinary medical infusion needles can be reused. If they are not effectively cleaned and disinfected, they will easily cause cross-infection among patients. In order to solve this problem, disposable Infusion needles have been widely used, but this disposable infusion needle is only required at the management system level to be used in a single use. At the same time, in order to avoid the secondary use of infusion needles and the stabbing of staff after use or in the process of destruction, causing serious consequences of virus cross-infection, safety infusion needles have been widely used in the medical field, and the medical regulations of many countries have more clearly stipulated Safety infusion needle...

AI Technical Summary

Problems solved by technology

[0002] Medical needles, which are used for infusion or blood collection, are commonly used medical devices. Ordinary medical infusion needles can be reused. If they are not cleaned and disinfected effectively, it is easy to cause cross-infection among patients. In order to solve this problem, disposable Infusion needles are widely used, but this kind of disposable infusion needle is only required to be used once at the management system level

At the same time, in order to avoid the secondary use of infusion needles and the stabbing of staff after use or in the process of destruction, causing serious consequences of virus cross-infection, safety infusion needles have been widely used in the medical field, and the medical regulations of many countries have more clearly stipulated Safety infusion needles must be used

In recent years, people have developed many kinds of disposable safety infusion needles with automatic destruction devices, which can only be used once at a technical level. high

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