Tubular traction pressurization connecting rod control device and outer-bone fixing device

Abstract

Disclosed are a tubular traction pressurization connecting rod control device and an outer-bone fixing device. The device is composed of a traction pressurization connecting rod, steel needle fixing clamps and steel needles. The traction pressurization connecting rod is composed of a full-thread connecting rod body, at least one sleeve pipe and nuts, wherein the full-thread connecting rod body is sleeved with the at least one sleeve pipe and the nuts are fixed at the positions, at the two ends of the sleeve pipe, of the full-thread connecting rod body. The steel needle fixing clamps are connected to the traction pressurization connecting rod, and the steel needle fixing clamps are composed of steel needle pressing pads, screwed hole gaskets, bases, screws, upper nuts and lower nuts. The screws sequentially penetrate through holes in the centers of the steel needle pressing pads, holes in the centers of the screwed hole gaskets and holes in the centers of the bases, the upper nuts are located on the steel needle pressing pads and connected with the screws through threads, and the lower nuts are located under the bases and connected with the screws through threads. The tubular traction pressurization connecting rod control device and the outer-bone fixing device are flexible to combine and convenient to operate, have the functions of static fixation, mechanical traction and pressurization, have very good fixing, anti-shearing and anti-rotating capacities, are applicable to spiral fractures, oblique fractures and intertrochanteric unstable fractures of shinbones and thighbones, and are especially applicable to outer fixation of comminuted fracture.

Description

technical field [0001] The invention relates to an external bone fixation device used in orthopedic surgery and fixers of different configurations combined with the device. Background technique [0002] Fractures are mostly caused by factors such as daily life, labor, violence, etc., and are more common in young adults and teenagers. For example, after double fractures of the forearm, overlapping, rotation, angulation, and lateral displacement deformities may occur between the broken ends of the bones, and the incidence rate accounts for about 12% of the total number of fractures. The function of the forearm is one of the main characteristics of human evolution. The rotation function is of great significance to increase the dexterity of the upper limbs and hands. Therefore, how to maintain the use function to the maximum extent after the forearm fracture is a crucial element affecting the evaluation of the curative effect. Forearm trauma is mostly open injury, often accompa...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tubular stretching and pressurizing connecting rod control device and an external fixator to solve the technical problems that the existing external fixator is difficult to adjust, does not have the function of stretching and pressurizing, and cannot be assembled in a flexible configuration

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