Multi-degree-of-freedom knee joint fixing support in knee joint arthroplasty

Abstract

The invention relates to the technical field of medical instruments, in particular to a multi-degree-of-freedom knee joint fixing support in knee joint arthroplasty. The multi-degree-of-freedom knee joint fixing support in the knee joint arthroplasty comprises a bottom support, an X-axis direction moving mechanism, a Z-axis direction rotating mechanism, a foot support mechanism and an X-axis direction rotating mechanism, the X-axis direction moving mechanism is arranged at the upper end of the bottom support and can move at the upper end of the bottom support in the X-axis direction, the Z-axis direction rotating mechanism is connected with the X-axis direction moving mechanism, the X-axis direction rotating mechanism is connected with the Z-axis direction rotating mechanism, and the foot support mechanism is connected with the X-axis direction rotating mechanism. The multi-degree-of-freedom knee joint fixing support can move in the X-axis direction and rotate in the X-axis direction and the Z-axis direction, multi-angle adjustment is achieved, the situation that a doctor adjusts and protects the soft tissues and ligaments of the knee joint through a retractor is replaced, and the problem of knee joint exposure can be well and stably solved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a multi-degree-of-freedom knee joint fixation bracket in knee joint replacement. Background technique [0002] At present, to reconstruct the mechanical axis, realize the ideal joint space balance, and restore the maximum range of motion through traditional knee arthroplasty still requires complex preoperative planning and meticulous operation techniques. [0003] With the development of science and technology, robot-assisted knee replacement surgery has begun to take shape, and will be widely used in hospitals to serve patients in the future. The advantage of the robot is that it can improve the accuracy of osteotomy, and can record the knee joint model through preoperative three-dimensional scanning, provide the best osteotomy plan, and the best artificial anatomical force line. [0004] However, the shortcomings of the robot are also obvious. In knee joint surgery, th...

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Problems solved by technology

[0004] However, the shortcomings of the robot are also obvious. In knee joint surgery, the exposure of the femoral condyle and tibial plateau needs to be constantly changed, manpower is required to fiddle with the position of the patient. There is a deviation in the bone, and the doctor must hold the retractor to protect the soft tissue and ligaments of the knee joint during the operation, which to some extent loses the advantages of robot-assisted technology

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