CN202821509U - Square osteotome - Google Patents

Abstract

The utility model relates to a square osteotome which is composed of a handle part and a head part. The handle part is in a long rod shape. The head part is in a square shape. An angle of 90 degrees is formed between knocking and chiseling acting surfaces of the osteotome handle part and the head part, so that convenience is brought for knocking. The upper surface of the osteotome head part is smooth. A cutting edge acting surface of the lower surface of the osteotome head part is in a rectangular shape. The square osteotome has the advantages that the angle of 90 degrees is formed between the knocking and chiseling acting surfaces of the osteotome handle part and the head part, so that the convenience is brought for the knocking, the osteotome head part is in a square shape, the upper surface of the osteotome head part is smooth and the cutting edge acting surface of the lower surface of the osteotome head part is in a rectangular shape.

Description

A kind of square osteotome

[technical field]

This utility model relates to the surgical medical equipment technical field, specifically, is a kind of square osteotome.

[background technology]

In posterior spinal operation, when needs are processed intervertebral disc, hyperosteogeny etc., usually cut fibrous ring with stylet annular, exhaust fibrous ring and vertebral pulp fragment with nucleus pulposus clamp, to sting except hyperosteogeny etc. with rongeur, its step is various.

Chinese patent application numbers 94241496.9 relates to a kind of whole abnormal osteotome of tooth that is exclusively used in, it is by chisel grip, with the integrant cutter bar of chisel grip, the section of chisel grip is rectangle, cutter rod end head be used be applicable to laterally arc line shaped chisel edge or the linear chisel edge of the disconnected alveolar bone of cutter and the disconnected alveolar bone of vertical cutter, when doing the whole abnormal operation of tooth, the osteotome of the osteotome of arc line shaped chisel edge and linear chisel edge is used, operation wound is light, bone wound gap is little, easy damaged is not close to the root of the tooth tissue, being conducive to the healing of postoperative and reducing post-operative complication, is for the whole abnormal comparatively desirable apparatus of tooth.

Chinese patent application number 02268508.1 relates to " S " arc skull cutter, consisted of by osteotome handle 1, osteotome head 2, blade 3, its 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 planes are in " S " arc-shaped bend side.Should cut a hole by " S " arc skull, simple in structure, easy operation has avoided acetabular bone to screw out phenomenon imperfect or that cutter is worn the mortar wall, can rebulid acetabular bone, and surgical effect is good, can be widely used in the Periacetabular osteotomy to the acetabular dysplasia patient.

Chinese patent application numbers 200820068200.0 relates to a kind of osteotome, comprises handle, cutter bar, cutter pier and chisel head, and the termination of cutter bar is L shaped chisel head, and chisel head is smooth, blunt rounded without sword.This utility model has solved prior art when carrying out complexity or the sclerite reattachment surgery about two weeks, need the interior spinal cord of excessive tractive canalis spinalis or cauda equina nerve just can carry out the operation of sclerite reattachment surgery, easily cause spinal cord injury to increase the weight of, and then the deficiency that causes paralysing and increase the weight of.When using this utility model to implement spinal operation; under the nerve dissector protection; osteotome of the present utility model arrives vertebral body along canalis spinalis both sides radian; because chisel edge and cutter bar are 90 degree; do not need excessive tractive canalis spinalis; chisel edge can push up mutually with displacement bone piece, and slight hammering displacement bone piece can reset and spinal cord and cauda equina nerve are disturbed seldom.Compared with prior art, this utility model convenient operation, less, safe and reliable to spinal cord and cauda equina nerve interference, effectively avoided iatrogenic injury.

Chinese patent application 200920224539.X relates to a kind of Improvement type osteotome, comprises osteotome blade, osteotome body, osteotome shank, silicon rubber cup and silicon rubber cup top, and it is characterized in that: the osteotome shank is cube, its transverse section is rectangle, long 0.8cm, wide 0.7cm, osteotome shank art end is provided with silicon rubber cup, silicon rubber cup is the uncovered box-like, interior path length 0.7cm, wide 0.6cm, high 2.0cm, thickness 0.3cm, there is rough anti-skidding microgroove on the silicon rubber cup top.This utility model has increased contact area and the frictional force of osteotome, effectively avoided the slippage of bone hammer, reduced the sound of metal percussion, alleviated patient's fear, reduce simultaneously the probability in the powder contaminated operation district of metal bump generation, had advantage rational in infrastructure, with low cost, easy to use.

[utility model content]

The purpose of this utility model is to provide a kind of square osteotome, can be used for easily and effectively the excision of the tissues such as Via Posterior Spinal Approach art fibrous ring and hyperosteogeny.

The purpose of this utility model is achieved through the following technical solutions:

A kind of square osteotome is made of handle portion and head; The handle portion elongated rod shape, head is square; The cutter acting surface that strikes of osteotome handle and head is 90 °, conveniently knocks; Smooth above the osteotome head, below the cutting edge acting surface be rectangle.

Compared with prior art, good effect of the present utility model is:

(1) osteotome handle and head strike the cutter acting surface be 90 °, conveniently knock.

(2) the osteotome head is square, above smooth, below the cutting edge acting surface be rectangle.

[description of drawings]

Fig. 1 this utility model sketch map;

Being labeled as in the accompanying drawing: 1, head, 11, top smooth, 12, following chisel acting surface, 2, handle portion.

[specific embodiment]

The specific embodiment of a kind of square osteotome of this utility model below is provided.

Embodiment 1

Accompanying drawing 1 is this utility model sketch map.This utility model is made of handle portion 2 and head 1; Handle portion 2 elongated rod shape, head 1 is square; Osteotome handle 2 strikes the cutter acting surface with head 1 and is 90 °, conveniently knocks; 11 is smooth above the osteotome head 1, below cutting edge acting surface 12 be four edges, rectangular.

The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection domain of the present utility model.

Claims (3)

1. a square osteotome is made of handle portion and head; It is characterized in that, the handle portion elongated rod shape, head is square.

2. a kind of square osteotome as claimed in claim 1 is characterized in that, the cutter acting surface that strikes of described osteotome handle and head is 90 °.

3. a kind of square osteotome as claimed in claim 1 is characterized in that, and is smooth above the described osteotome head, below the cutting edge acting surface be rectangle.

Images