CN2553742Y

CN2553742Y - S-shaped arc skull chisel

Info

Publication number: CN2553742Y
Application number: CN 02268508
Authority: CN
Inventors: 朱琦; 王萍; 朱爱莲; 亓洪德; 谢学升; 陈爱梅
Original assignee: 朱琦
Priority date: 2002-07-26
Filing date: 2002-07-26
Publication date: 2003-06-04
Anticipated expiration: 2012-07-26

Abstract

The utility model discloses an S shape skull chisel consisting of a bone chisel handle 1, a bone chisel head component 2 and a blade component 3; wherein, the bone chisel head component 2 takes an S shape; the bending curvature of the S-shaped blade terminal is equivalent to the radian of a corresponding chiseled cotyle; and the blade plane of the blade component 3 is positioned in the bending side of the S shape. The S shape skull chisel has a simple structure and is easy to be operated, avoids to take out uncompleted cotyle and to penetrate the cotyle wall, can reset the cotyle and has perfect operation effect, thus can be widely applied in acetabular osteotomy of a patient who has a dysplasia of hip.

Description

" S " arc skull cutter

This utility model relates to the improvement of osteotome, and specifically a kind of " S " arc skull cutter is applicable to osteotomy around acetabular dysplasia patient's the acetabular bone.

Acetabular dysplasia is the orthopaedics commonly encountered diseases, because of malpractice often causes hip joint subluxation so that dislocation is the common cause of disabling in the joint, can influence patient's joint motion and orthobiosis.Present Therapeutic Method is to adopt the acetabular bone shelf operation, promptly gradually deeply with ordinary straight skull cutter, cut a hole on one side, turn over osteotomy on one side, at the space interplantation that cuts piece to the marrow, make lid to finish acetabular bone, it is stable to make the femoral head of dislocation be added a cover the back, this shelf operation, because hip joint still is in the dislocation state, be blocked after just adding a cover and prevented the continuation dislocation, promptly add a cover and only play barrier effect, but not articulation structure, so it is more serious to capital wearing and tearing, patient's hip joint has obvious pain, is prone to early stage traumatic arthritis, and patient's joint motion is restricted.In addition, be difficult for accurately grasping because of osteotome advances to cut a hole direction, to the acetabular bone bottom, very easily cutter is worn acetabular bone or the osteotomy piece that fractures, and the acetabular bone integrity is suffered damage, and influences surgical effect especially.

The purpose of this utility model be to provide a kind of simple to operate, osteotomy is complete, can rebulid " S " arc skull cutter of acetabular bone and good operation effect.

This utility model be achieved in that this " S " arc skull cutter be adopt complete acetabular bone by along around osteotomy screw out acetabular bone and will cover femoral head again after its rotation, thereby reach principle that hip joint function rebuilds and improved.Should be made of osteotome handle, osteotome head, blade by " S " arc skull cutter, its osteotome head is " S " sigmoid, and the sword end bending curvature of " S " sigmoid is with consistent by the radian of cutter acetabular bone corresponding site, and the sword plane of blade is in " S " arc-shaped bend side.Should establish three by " S " arc skull cutter, the respectively corresponding acetabular bone periphery of its blade bending curvature radian, acetabular bone waist radian and acetabular bone bottom radian are so that osteotome can be complied with the complete osteotomy of the radian of acetabular bone itself.When using this utility model, can use earlier and the true periphery of opening acetabular bone of acetabular bone periphery radian corresponding " S " arc skull, reuse and acetabular bone waist radian corresponding " S " arc skull cutter gradually deeply, use at last with at the bottom of radian at the bottom of the acetabular bone corresponding " S " the arc skull cutter section acetabular bone, one by one the acetabular bone internal skeleton is dug out, build up new acetabular bone.

The utility model has the advantages that: simple in structure, easy operation, avoided acetabular bone to screw out phenomenon imperfect or that cutter is worn the mortar wall, can rebulid acetabular bone, surgical effect is good, not only plays barrier effect, the more important thing is the effect of acetabular bone.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 looks sketch map respectively with by consistent " S " arc skull cutter structure master of the radian of cutter acetabular bone corresponding site for this utility model.

Fig. 2 is this utility model application state sketch map.

Make this utility model with reference to accompanying drawing 1,2.Should cut a hole by " S " arc skull, be made of osteotome handle 1, osteotome head 2, blade 3, its osteotome head 2 is " S " sigmoid, and the sword end bending curvature of " S " sigmoid is with consistent by the radian of cutter acetabular bone corresponding site, and blade 3 sword planes are in " S " arc-shaped bend side." S " arc skull cutter is established three, the respectively corresponding acetabular bone periphery of its blade 3 bending curvatures radian, acetabular bone waist radian and acetabular bone bottom radian.

Claims

1, a kind of " S " arc skull cutter, constitute by osteotome handle (1), osteotome head (2), blade (3), it is characterized in that osteotome head (2) is " S " sigmoid, the sword end bending curvature of " S " sigmoid is with consistent by the radian of cutter acetabular bone corresponding site, and blade (3) sword plane is in " S " arc-shaped bend side.

2, " S " according to claim 1 arc skull cutter is characterized in that " S " arc skull cutter establishes three, the respectively corresponding acetabular bone periphery of its blade (3) bending curvature radian, acetabular bone waist radian and acetabular bone bottom radian.