Insulin infusion remaining needle

Abstract

The invention relates to the technical field of medical instruments, in particular to an insulin infusion remaining needle. A first safety structure and a second safety structure are arranged on a needle assisting device, and a third safety structure is arranged on a puncture needle assembly. During use, a needle-assisting device shell can push the puncture needle assembly and a remaining needle assembly to penetrate into the human body through a second connecting piece after being separated from a first safety device, then the needle-assisting device shell can press a needle-assisting piece in a protective shell after being separated from a second safety device, and the needle-assisting piece drives a needle base to move relative to the protective shell and be separated from a third safety device. The needle base retracts relative to the protective shell under the pushing of an elastic piece, automatic needle pulling operation is achieved, the first safety and the second safety can be sequentially separated by pressing the pressing shell during operation, secondary operation is not needed, simplicity and convenience are achieved, a retracted puncture steel needle is hidden in the protective shell, reliability is good, and the puncture steel needle is prevented from being exposed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an insulin infusion indwelling needle. Background technique [0002] In today's clinical treatment, it is often encountered that some diseases need to be given uninterrupted timing and quantitative administration to patients during the treatment process. For example, when treating diabetic patients, insulin needs to be injected regularly and quantitatively. The existing insulin There are many structure types of indwelling needles for infusion, mainly including manual needle withdrawal and automatic needle withdrawal structures. Among them, the structure of manual needle withdrawal is to manually remove the puncture steel needle from the indwelling needle after the injection is completed and the needle aid is removed. It is inconvenient to pull out the hose and the human body, and the puncture steel needle exposed outside is likely to cause secondary injury and medical pol...

AI Technical Summary

Problems solved by technology

[0002] In today's clinical treatment, it is often encountered that some diseases need to be given uninterrupted timing and quantitative administration to patients during the treatment process. For example, when treating diabetic patients, insulin needs to be injected regularly and quantitatively. The existing insulin There are many structure types of indwelling needles for infusion, mainly including manual needle withdrawal and automatic needle withdrawal structures. Among them, the structure of manual needle withdrawal is to manually remove the puncture steel needle from the indwelling needle after the injection is completed and the needle aid is removed. It is inconvenient to pull out the hose and the human body, and the puncture steel needle exposed outside is likely to cause secondary injury and medical pollution. However, the existing automatic needle pullout structure has a mechanism that triggers the needle pullout during the injection process, which is reliable. Poor performance, easy to cause accidents and other problems

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