CN201469357U

CN201469357U - Bone rongeur for laminectomy

Info

Publication number: CN201469357U
Application number: CN2009203099969U
Authority: CN
Inventors: 刘忠军; 刘晓光; 孙正杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-09
Filing date: 2009-09-09
Publication date: 2010-05-19
Anticipated expiration: 2019-09-09

Abstract

The utility model relates to a medical instrument, especially a bone rongeur for laminectomy, which comprises a fixed rongeur handle, an upper rongeur piece, a lower rongeur piece, an opening spring and a pin; the rongeur handle comprises a front rongeur handle and a rear rongeur handle; hinging holes are formed correspondingly on the front end of the front rongeur handle and the rear rongeur handle, and are hinged with pins. The bone rongeur is characterized in that: mutually engaged saw teeth structures are formed on the engagement surfaces of the upper rongeur piece and the lower rongeur piece; the engagement surfaces of the upper rongeur piece and the lower rongeur piece are tooth bar shped, is convenient for processing, cleaning and increasing the engagement force between the upper and lower rongeur piece. In operation, the mutually engaged saw teeth structures on the engagement surfaces of the upper rongeur piece and the lower rongeur piece increases the friction coefficient between the upper and lower rongeur piece and human tissues, thereby, the two rongeur pieces can hold the human tissue firmly; and avoids the human tissue from sliding off from the rongeur pieces in drawing process. The utility model achieves the advantages of simple structure, convenient operation, short operation time, low operation risk, less ache and good treatment effect.

Description

Laminectomy rongeur

Technical field:

This utility model relates to a kind of medical apparatus, particularly a kind of easy to operate, pull-type laminectomy rongeur that result of use is good.

Background technology:

As everyone knows, laminectomy rongeur is by the fixation clamps handle, the adjustable clamp handle, under clamp sheet, upper pliers plate, opening spring and bearing pin forms, existing laminectomy rongeur is the pushing-type structure, fixation clamps handle and following pincers sheet are connected as a single entity, adjustable clamp handle and upper pliers plate are connected as a single entity, the fixation clamps handle is corresponding with the upper end of adjustable clamp handle to be provided with hinge hole and to be hinged by bearing pin, during use, the fixation clamps handle keeps relative transfixion, the adjustable clamp handle moves to fixation clamps handle direction around its upper end bearing pin, makes upper pliers plate realize vertebrae plate resection with clamping the sheet interlock down, and upper pliers plate is relative static with lower plier handle in the following pincers sheet interlock process, upper pliers plate moves forward, laminectomy rongeur is operation in the body surface otch generally, and when its deficiency was operation technique, upper pliers plate pushed away before the direction in the human body body, can draw also lateral movement in human body of surrounding tissue, thereby its hetero-organization of inside of human body is formed compressing, and inconvenient operation is brought certain risk to operation, particularly when operative site was in body weight for humans and wants the position, risk was bigger.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of laminectomy rongeur easy to operate, safe in utilization is provided.

This utility model can reach by following measure:

A kind of laminectomy rongeur, comprise fixation clamps handle, adjustable clamp handle, down clamp sheet, upper pliers plate, open spring and bearing pin, it is characterized in that the fixation clamps handle is connected with upper pliers plate, the adjustable clamp handle is connected with following pincers sheet, and the fixation clamps handle is corresponding with the upper end of adjustable clamp handle to be provided with hinge hole and to be hinged by bearing pin.

During this utility model surgical operation, by original upper pliers plate travel forward change into down pincers sheet backward (human vitronectin direction) motion, make down pincers sheet and upper pliers plate interlock realize vertebrae plate resection, thereby its hetero-organization of inside to human body does not form compressing, made things convenient for operation technique, reduce operation risk, had simple in structure, easy to operate, the right to use with advantages such as safety, therapeutic effect are good.

Description of drawings:

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

The specific embodiment:

Below in conjunction with accompanying drawing this utility model is further described:

As shown in drawings, a kind of laminectomy rongeur, comprise fixation clamps handle 1, adjustable clamp handle 2, under clamp sheet 3, upper pliers plate 4, open spring 5 and bearing pin, fixation clamps handle 1, adjustable clamp handle 2, under clamp sheet 3, upper pliers plate 4, the structure of opening spring 5 is same as the prior art, this does not give unnecessary details, the fixation clamps handle 1 that is characterised in that of the present utility model is connected with upper pliers plate 4, adjustable clamp handle 2 is connected with following pincers sheet 3, the leading section of fixation clamps handle 1 and adjustable clamp handle 2 is corresponding to be provided with hinge hole and to be hinged by bearing pin, during this utility model surgical operation, by original upper pliers plate travel forward (human body body in direction) change into down the pincers sheet backward (human vitronectin direction) move, make down pincers sheet and upper pliers plate interlock realize vertebrae plate resection, thereby its hetero-organization of inside to human body does not form compressing, made things convenient for operation technique, reduced operation risk, had simple in structure, easy to operate, right to use safety, advantages such as therapeutic effect is good.

Claims

1. laminectomy rongeur, comprise fixation clamps handle, adjustable clamp handle, down clamp sheet, upper pliers plate, open spring and bearing pin, it is characterized in that the fixation clamps handle is connected with upper pliers plate, the adjustable clamp handle is connected with following pincers sheet, and the fixation clamps handle is corresponding with the upper end of adjustable clamp handle to be provided with hinge hole and to be hinged by bearing pin.