CN2304368Y

CN2304368Y - Casing of intervertebral disc cutter

Info

Publication number: CN2304368Y
Application number: CN97239805U
Authority: CN
Inventors: 雷高; 宋宜明
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-07
Filing date: 1997-08-07
Publication date: 1999-01-20
Anticipated expiration: 2007-08-07

Abstract

The utility model discloses an outer casing of intervertebral disc cutter. A ruler 2 provided with a scale line 1 is arranged on a casing handle 3, and the zero position of the scale line 1 is aligned to the end face of the casing handle 3. The outer casing is matched with corresponding surgical instruments, at the time of the operations of cervical intervertebral disc and lumbar intervertebral disc, the guidance of X ray is needless, and the cutting of the cervical intervertebral disc and the lumbar intervertebral disc can be carried out under direct vision. The cervical intervertebral disc and the lumbar intervertebral disc can also be cut and sucked by percutaneous puncture. The utility model can accurately master the entering depth of a cutting knife, etc., into the intervertebral disc, having the advantages of exact positioning and safety.

Description

Intervertebral disc cutter trocar sheath

This utility model relates to a kind of trocar sheath of intervertebral disc cutter.

Cervical spondylosis and prolapse of lumbar intervertebral disc are modal surgical diseasess, though most patient can be in early days made remission through non-operative treatment as physical method such as traction, massage and Drug therapy, still have many patients finally also need adopt operative treatment.When cervical operation, its degree of depth was difficult to grasp when the most tangible weak point was cut a hole bone exactly and struck off intercalated disc, and is careless slightly or exert oneself very easily to cause spinal cord injury when excessive and lead to grave consequences.During as the multi-segmental prolapse of cervical intervertebral disc, extract intercalated disc and too much be easy to cause the cervical vertebra shakiness and cause future trouble.And the percutaneous puncture cervical intervertebral disk is cut in the suction art, guide pin must could be located under the guiding of x line during puncture, by just, the side biplane fluoroscopy adjusts the inserting needle direction and the degree of depth, requirements of operation is very high, the operator will have suitable experience, and tool bears the character of much blindness and randomness.In addition, this class operation also needs auxiliary facilities such as x line machine, display etc., the equipment complexity, and cost is higher, and general hospital is difficult to possess these conditions.

The purpose of this utility model is exactly for overcoming the deficiency described in the background technology, and propose a kind of simple in structure, can be under direct-view accurate localized intervertebral disc cutter trocar sheath.

The technical solution that realizes above-mentioned purpose is: this intervertebral disc cutter trocar sheath comprises pipe handle and sleeve pipe, and it mainly is to be provided with a scale that has a graduation mark on the pipe handle.With the both sides of the scale that fixes of pipe handle graduation mark is arranged all.Graduation mark on the scale is metric system and/or English unit.The zero-bit of graduation mark is concordant with the end face of pipe handle.

Accompanying drawing is a structural representation of the present utility model.

Now in conjunction with the accompanying drawings structure of the present utility model being done one describes in detail.

As shown in drawings, this trocar sheath is made of hollow bushing 4 and pipe handle 3, fixes the scale 2 that one or both sides all have graduation mark 1 on pipe handle 3.This graduation mark 1 can be metric system or English unit, also can be that metric system and English unit mark simultaneously, and wherein, the zero-bit of graduation mark 1 (promptly 0) is concordant corresponding with the end face of pipe handle 3.

When concrete operation is used, locate by guide pin earlier, cut fibrous ring with trepan, put into pipe handle 3 again and have the trocar sheath 4 of scale 2, and in trocar sheath 4, put into corresponding operating theater instruments such as dissimilar cutters such as inside and outside rotary-cut cutter, circular knife, bone drill, sander, curet.

In operation process, the bone drill of the various models of adapted can excise cervical intervertebral disk under direct-view, but simultaneously also percutaneous get ilium, directly finish the intervertebral bone-graft fusion; Adapted sander, circular knife etc. are handled vertebral body trailing edge hyperosteogeny, the nerve root of loosening, excision calcification intercalated disc, are enlarged nerve root canal or intervertebral foramina etc. under the protection of trocar sheath 4; The adapted curet can with discectomy clean more thoroughly.

This utility model is owing to adopted at the pipe handle tail and fixed a this unique design of scale that has a graduation mark, when neck, lumbar intervertebral disc operation, need not the guiding of x line, can under direct-view, carry out the excision of neck, lumbar intervertebral disc, also but percutaneous puncture is cut and is inhaled neck, lumbar intervertebral disc, can grasp the degree of depth that apparatuses such as cutter enter intervertebral disc exactly, accurate positioning, blindness when having solved percutaneous puncture to a great extent and randomness.Cooperate corresponding operating theater instruments also to be applicable to when neck, lumbar surgery and give prominence to intercalated disc through the excision of forward and backward road, and the excision of intercalated disc bulging and calcification intercalated disc.Have advantages such as simple in structure, accurate positioning, operation easily, function be more, safe and reliable.

Claims

1, a kind of intervertebral disc cutter trocar sheath comprises pipe handle (3) and sleeve pipe (4), it is characterized in that being provided with a scale (2) that has graduation mark (1) on the handle (3) managing.

2, intervertebral disc cutter trocar sheath as claimed in claim 1 is characterized in that and all there is graduation mark (1) both sides of the scale (2) that pipe handle (3) fixes.

3, intervertebral disc cutter trocar sheath as claimed in claim 1 or 2 is characterized in that the graduation mark (1) on the scale (2) is metric system and/or English unit.

4, intervertebral disc cutter trocar sheath as claimed in claim 1 is characterized in that the zero-bit of graduation mark (1) is concordant with the end face of pipe handle (3).