Multifunctional femur osteotomy positioner

Abstract

The invention relates to the field of medical instruments, in particular to a multifunctional femur osteotomy positioner. The positioner comprises an osteotomy connecting mechanism for determining theosteotomy position of the femur, a positioning mechanism and an auxiliary mechanism for stabilizing and measuring the size of the femur, wherein the osteotomy connecting mechanism is located betweenthe positioning mechanism and the auxiliary mechanism; the positioning mechanism is located above the femur; the osteotomy connecting mechanism is located at the end of the femur; and the osteotomy connecting mechanism is movably connected with the positioning mechanism and the auxiliary mechanism. The positioner has the advantages that osteotomy positioning and femur measuring are comprehensivelyused, the osteotomy connecting mechanism and the auxiliary mechanism are adopted as the benchmark, the composition of an instrument is simplified, the utilization rate of the instrument is increased,the number of instruments is reduced, the osteotomy positioning precision and measuring precision in an operation process are improved, the operation risk is reduced, and the operation time is shortened.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a multifunctional femoral osteotomy positioner. Background technique [0002] Knee arthroplasty is currently one of the commonly used surgical methods in the clinical treatment of knee osteoarthritis, traumatic arthritis, rheumatoid and other diseases, and the postoperative effect is good. In total knee replacement surgery, it is necessary to perform multi-plane and multi-angle osteotomy on the femoral side in order to install the femoral prosthesis. First, it is necessary to perform osteotomy on the distal femur of the knee joint, and then use this osteotomy plane as the reference plane to measure The parameters of the femoral condyle were determined, and the position of the osteotomy module was determined in the next step. The measurement of the parameters of the femoral condyle is mainly to determine the distance between the posterior femoral condyle and the anterior ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the femoral osteotomy module and the measuring device are separate operating instruments. During use, the operation steps are complicated and the cost of the instrument is high. The replacement of the entire instrument during the operation will affect the positioning accuracy of the osteotomy, and at the same time increase the The operation steps of the operation are shortened, the operation time is prolonged, and the risk of the operation is also increased, which greatly limits the operation and accuracy of the operation.

[0004] In view of the related technologies mentioned above, the inventor believes that during the operation, the replacement of two independent operating machines will affect the positioning accuracy and measurement accuracy of the osteotomy, increasing the risk of the operation

Images