Active type safety syringe and safety injection needle

Abstract

The invention relates to a safe injector with automatic self-destruction function and a safe inject needle. The front end of a cross support of a push rod is provided with a trigging rod. The front end of the rod is in V-shaped expansion and is provided with vertical slotting matched and fitted with a rubber plug provided with an opening. An inner hole of a conehead of an outer barrel has a contract and narrow step which can be interlocked with the expansion end in front of the trigging rod. The releasing state of a spring is in the same length with a limited cable, and the spring is fixed between the front end of a needle seat and a needle tip protection casing, and they are all compressed and fixed in the inner space of the needle protection casing. The space between the needle seat and an outer Ruhr interface is sealed by a sealing ring. The outer Ruhr interface is rotatably and fixedly connected to the conehead of the safe injector. After injected according to a conventional injection operation, the push rod is pressed forcedly, meanwhile the needle seat and the needle tip protection casing are together pressed down and separated from the outer Ruhr interface. The spring resets and protects the needle tip in the needle protection casing. At the same time the expansion end of the trigging rod enters the contract and narrow step of the inner hole of the conehead and locks the push rod and the outer barrel, thereby realizing the self-destruction brake and safety of the safe injector and the active protection and abandon of the safe injector.

Description

technical field [0001] The invention relates to a medical injection device, in particular to a safety syringe with an active self-destruction function. technical background [0002] The injection device of the present invention mainly refers to the device used for medical purposes, through acupuncture technology, to inject medicinal liquid into tissues, subcutaneous, blood vessels, and muscles. It involves various syringes and injection (puncture) needles that we use every day. A syringe is a container and a push injection tool that can extract the liquid medicine into its inner cavity, while an injection (puncture) needle is a liquid that infuses the liquid medicine into the site after accurately puncturing the injection site. Channel puncture and liquid flow path. The two cooperate to jointly realize the injection function of the medicinal liquid. They play a huge role in the process of human clinical diagnosis and treatment of diseases. It is an indispensable therapeu...

AI Technical Summary

Problems solved by technology

[0005] 3. Most of the schemes are complex in structure and different in processing, resulting in different safety syringe parts that cannot be replaced with each other, which increases the manufacturing cost of the enterprise and makes it difficult to manufacture molds

It is difficult for the country and enterprises to fully and effectively use the existing resources to disposable safety injection equipment that is safe, reliable, cheap, easy to manufacture, and conforms to the routine and usage habits of clinical medical injection operations.

[0006] At present, there is no domestic technical solution for a disposable safety syringe with active self-destruct function that can meet the above requirements.

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