CN202699234U

CN202699234U - Osteotome with boot-shaped chisel head

Info

Publication number: CN202699234U
Application number: CN 201220231718
Authority: CN
Inventors: 于凤宾; 陈德玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2013-01-30
Anticipated expiration: 2022-05-22

Abstract

The utility model discloses an osteotome with a boot-shaped chisel head. The osteotome is composed of three parts of a chisel handle (1), a chisel head (2) and a chisel blade (3), wherein the chisel head (2) is boot-shaped, the tail portion of the boot-shaped chisel head is connected with the chisel handle, the chisel handle (1) is similar to a common osteotome, the bottom of the boot-shaped chisel head is the chisel blade (3), and two ends of the chisel blade are smooth. The osteotome has a simple structure and is convenient to operate. The boot-shaped chisel head can stretch into a front middle part of a spinal canal through a gap between a dural sac deep layer and a fiber ring, and thus hyperplastic osteophyte at the center of the rear edge of a centrum or a calcified intervertebral disc can be effectively removed, and the risks of damaging dural sacs and nervous tissue during operation are reduced. The osteotome with the boot-shaped chisel head is suitable for removing hyperplastic osteophyte at the center of the rear edge of the centrum or calcified intervertebral disc tissue in the posterior lumbar decompression operation.

Description

A kind of boot-shaped skull cutter

Technical field

This utility model relates to a kind of osteotome, belongs to the spinal surgery instrument.

Background technology

In the lumbar vertebral posterior decompression operation, when hitting exactly before the close canalis spinalis of vertebral body trailing edge hypertrophy hyperosteogeny or calcification disc tissue position, if with it removal, need with dural sac to the side tractive, use again the apparatuses such as osteotome, nucleus pulposus clamp with it removal.But because distance drawn is larger, significantly increase the risk of dural sac, nerve root and cauda equina injury.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to operate osteotome, solves the deficiencies in the prior art.

This utility model is that the technical scheme that the above-mentioned deficiency of solution is taked is:

It is comprised of chisel grip, chisel head and three parts of chisel edge, and its chisel head is boot-shaped, and the boot-shaped head-tail links to each other with chisel grip, and chisel grip is similar to osteotome commonly used, and boot-shaped head bottom is chisel edge, and the chisel edge two ends are level and smooth.

This utility model adopts said structure.In use, in the situation that not tractive dural sac and nerve root, the boot-shaped chisel head can be sent into the canalis spinalis front middle part through the gap of dural sac deep layer and fibrous ring, then knock osteotome handle bottom with bone hammer, can cut a hole disconnected and taking-up vertebral body trailing edge central part hypertrophy hyperosteogeny or calcification disc tissue; Owing to having avoided the tractive of dural sac and nervous tissue, can significantly reduce the risk of damaging dural sac and nervous tissue in the art.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Each position label among the above figure: 1, chisel grip; 2, boot-shaped chisel head; 3, chisel edge.

The specific embodiment

In order to understand better technique scheme of the present invention, below by the specific embodiment, and by reference to the accompanying drawings, this utility model is described in further detail.

Chisel head 2 of the present utility model is boot-shaped, and the boot-shaped head-tail links to each other with chisel grip 1, and boot-shaped head bottom is chisel edge 3, and the chisel edge two ends are level and smooth.

Chisel head 2 is boot-shaped, can be in the situation that tractive dural sac and nervous tissue do not send chisel head into the canalis spinalis front middle part.

The chisel edge two ends are level and smooth, can avoid puncturing dura mater and nervous tissue.

In use, the patient can send the boot-shaped chisel head into vertebral body trailing edge central part through the gap of dural sac deep layer and fibrous ring, and bone hammer knocks osteotome handle bottom, can effectively remove vertebral body trailing edge central part hypertrophy hyperosteogeny or calcification intervertebral disc; Owing to having avoided the tractive of dural sac and nervous tissue, can significantly reduce the risk of damaging dural sac and nervous tissue in the art.This utility model simplicity of design, safe and convenient to use, be easy to grasp.

Claims

1. osteotome that is exclusively used in bone surgery, it is characterized in that: it is comprised of chisel grip, chisel head and three parts of chisel edge, and its chisel head is boot-shaped, and the boot-shaped head-tail links to each other with chisel grip, and boot-shaped head bottom is chisel edge, and the chisel edge two ends are level and smooth.