Outer fixing frame experiment table capable of detecting axial stress condition of skeleton

Abstract

The invention discloses an outer fixing frame experiment table capable of detecting the axial stress condition of a skeleton, and the outer fixing frame experiment table comprises a Taylor outer fixing frame, a pressurization mechanism, a rack, a skeleton model, an upper skeleton fixing part and a lower skeleton fixing part, the pressurization mechanism is fixed on the rack, and the output end ofthe pressurization mechanism is connected with the upper end of the skeleton model through the upper skeleton fixing part. The lower end of the skeleton model is fixed to the rack through the lower skeleton fixing part, and the Taylor outer fixing frame is fixed to the outer side of the skeleton model and fixed to the skeleton model through a steel needle. According to the device, the healing process of the broken bone under the condition that the Taylor outer fixing frame is installed can be simulated in a laboratory environment, the stress condition of each connecting rod of the external fixing frame when axial force is applied to the broken bone in the healing process is detected, and axial mechanical monitoring of the healing process of the bone provided with the Taylor outer fixing frame is achieved in the laboratory environment.

Description

technical field [0001] The invention relates to the field of axial mechanical testing of a Taylor frame, and more specifically relates to an external fixator test bench capable of detecting the axial force of bones. Background technique [0002] In the process of orthopedic surgery, external fixators have been widely used, which cause less trauma, fast recovery of patients, and good orthopedic rehabilitation effects. Currently commonly used external fixators include single-arm external fixator, ilizarov external fixator, Taylor external fixator and so on. Wherein the single-arm external fixator fixes the bone on the single arm through steel needles, and can only heal fractures, but cannot perform bone correction. The Ilizarov external fixator is composed of multiple fixing rings and six flexible connecting rods. The fixing rings are fixed on the bone through Kirschner wires. By adjusting the length of the six connecting rods, the direct relative position of the fixing rings...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the combination of the existing external fixator and the sensor system is not suitable for the Taylor external fixator, and the sensor installation of the Taylor external fixator is difficult. Detect the force on the connecting rod of the external fixator, propose an external fixator test bench that can detect the axial force of the bone, simulate the healing process of the broken bone in the laboratory environment when the Taylor frame is installed, and detect The stress of each connecting rod of the external fixator when it is subjected to axial force during the healing process realizes the monitoring of the axial mechanics of the bone healing process with the Taylor frame installed in the laboratory environment

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