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Trephine

A ring saw and sawtooth technology, applied in the field of medical equipment, can solve problems such as patient pain, medical accidents, operation vibration, etc., and achieve the effect of safe operation and convenient use

Inactive Publication Date: 2021-12-21
黄生辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the ring saw tooth is reversed, it is very easy to rub against the adjacent tissue, especially the complex anatomy around the spine, densely packed with nerves and blood vessels, which will cause major medical accidents after injury; and if the handle of the ring saw is not designed properly , it is very likely to cause operation jitter, resulting in reduced resection accuracy, or even wrong cuts, which will cause great pain to the patient, and more serious cases will cause medical accidents

Method used

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Embodiment Construction

[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0019] see figure 1 , a ring saw embodiment of the present invention, comprising a hollow tube 1, the end of the hollow tube 1 one end circumferentially provided with a number of serrations 11, the other end of the hollow tube 1 is concentrically provided with a cylindrical handle 2; The tooth tips of 11 are arranged obliquely in the clockwise or counterclockwise direction, and a number of anti-slip teeth 21 are evenly distributed on the outer circumference of the cylindrical handle 2 . One end of the hollow tube is provided with inclined teeth, and the other end of the hollow tube is concentrically provided with a cylindrical handle, and anti-slip teeth are ...

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Abstract

The invention discloses a trephine. The trephine comprises a hollow circular tube; a plurality of trephine teeth are arranged at one end of the hollow circular tube in a circumferential direction; a cylindrical handle is concentrically arranged at the other end of the hollow circular tube; tooth tips of the trephine teeth are obliquely arranged in a clockwise direction or anticlockwise direction; and a plurality of anti-skid teeth are evenly distributed on the outer side of the cylindrical handle in a circumferential direction. The trephine of the invention has the advantages of being simple in structure and convenient to use and carry, and incapable of damaging other tissues in a working process.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a ring saw. Background technique [0002] Lumbar intervertebral disc herniation is a common and frequently-occurring disease in spinal orthopedics. Traditional surgical treatment involves large trauma, heavy bleeding, and slow postoperative recovery. Foraminal endoscopic technology has emerged as the times require, using trephine to remove bone hyperplasia or other substances. At present, the commonly used excision tool is a circular saw tooth set on a ring saw. When using this saw blade for surgery, the doctor carefully moves the saw blade to the part that needs to be removed, and then turns the ring saw to complete the excision with the saw teeth. Work. However, when the ring saw tooth is reversed, it is very easy to rub against the adjacent tissue, especially the complex anatomy around the spine, densely packed with nerves and blood vessels, which will cause major medical a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/14
CPCA61B17/147
Inventor 黄生辉
Owner 黄生辉