Non-injury neurosurgery dura mater crochet needle

Abstract

A non-injury neurosurgery dura mater crochet needle comprises a needle body, the needle body is of a crescent structure, the head of the needle body is sharp, and the tail end of the needle body is connected with a pulling and holding part. A limiting part is arranged on the inner side of the needle body, the limiting part is of a crescent structure which is parallel to the arc of the needle body at intervals, the head of the limiting part is round and blunt, and the tail end of the limiting part is fixedly connected with the needle body; the distance between the head of the limiting part and the head of the needle body is smaller than the thickness of the dura mater, and the distance between the limiting part and the needle body is smaller than the thickness of the dura mater. When the head of the needle body is used for puncturing and lifting the dura mater, on one hand, the head of the limiting part can stop and limit the dura mater to prevent the head of the needle body from puncturing the dura mater to damage brain tissues below, and on the other hand, the distance between the limiting part and the needle body is smaller than the thickness of the dura mater to prevent the dura mater from being damaged. Part of the dura mater after puncture can enter the space between the needle body and the limiting part, the dura mater can be thoroughly prevented from being punctured, and the purpose of protecting the brain tissue below is achieved.

Description

Technical field: [0001] The invention relates to a medical instrument, in particular to a non-invasive neurosurgery dura mater hook. Background technique: [0002] When incising the dura mater in traditional neurosurgery, a sharp knife is generally used to cut the surface of the dura mater, and the brain tissue is below the dura mater. The neurosurgeon uses a certain force to incise the dura mater according to the feel of the hand, and then uses a small hemostatic forceps to clamp the incision One side is opened, the dura mater is lifted upward, and then the dura mater is cut with meningeal scissors. During the operation, the sharp knife often penetrates the dura mater and directly damages the brain tissue. Therefore, in the clinical process, doctors usually use tail threading sutures first. The dura mater is suspended with a needle, and then the suture is lifted to lift the dura mater locally so that there is a certain gap between the dura mater and the brain tissue. Due t...

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a non-invasive neurosurgery dura mater hook, which solves the problem that the sharp knife often penetrates the dura mater and directly damages the brain tissue in the previous operation process, and solves the problem that the suture needle penetrates the dura mater in the past. Meninges damage brain tissue problems

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