A lead needle extractor for orthopedics

Abstract

A lead needle extractor for orthopaedics belongs to the field of orthopaedic medical instruments. The guide needle extractor comprises a sleeve and a holder. The retainer is inserted through the sleeve, and the retainer can slide up and down the sleeve. The sleeve head, the sleeve body and the sleeve tail opening of the sleeve are of an integral hollow tubular structure. A sleeve handle is connected to the barrel wall which is not open at the tail of the sleeve through a sleeve connecting rod. The tube wall gradually thickens from the sleeve body part to the sleeve head part to form a large conical structure with an inward conical structure at the head end. The clamping head of the clamper, the clamping tube body and the clamping tube tail are of an integrated tubular structure. A clampinghandle is connected to one side of the clamping pipe tail through a clamping connecting rod; The clamp head is located at the front end of the clamping pipe body, the shape of the clamp head is openlobed, and the inner wall of the head is threaded. The lead needle extractor has the advantages of realizing the unification of removing the broken guide pin and not increasing the destruction of theadjacent bone, facilitating the better healing of the fracture site, effectively reducing the operation time and reducing the operation risk.

Description

technical field [0001] The invention relates to the field of orthopedic surgery medical instruments, in particular to a guide pin extractor for orthopedics. Background technique [0002] As we all know, cannulated screws are widely used in the fixation of ankle fractures and other fractures. The guide pin is used as a positioning and guiding function, and it is used for the fixation of the hollow screw. Since the guide pin is thin, the guide pin may be broken during repeated use. When the broken part of the guide pin is inside the bone, it is difficult to take it out. Generally, another bone window is used to take out the guide pin. It reduces the risk of fracture and affects the quality of surgery to a certain extent. Contents of the invention [0003] The purpose of the present invention is to provide a guide pin extractor for orthopedics, which solves the problem that the guide pin is broken in the bone and cannot be taken out during orthopedic surgery, reduces the d...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a guide pin extractor for orthopedics, which solves the problem that the guide pin is broken in the bone and cannot be taken out during orthopedic surgery, reduces the damage to the bone again, shortens the operation time, and removes the broken bone more conveniently and quickly. Guide pin

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