Osteotomy device and distal femur osteotomy block thereof

Abstract

According to the osteotomy device and the distal femur osteotomy block thereof, the distal femur osteotomy block comprises a main body part, a first osteotomy part and a second osteotomy part, the main body part is provided with a first side face and a second side face which are arranged oppositely, the first osteotomy part extends towards the side where the first side face is located, and the second osteotomy part extends towards the side where the second side face is located, the first osteotomy part comprises a first positioning boss and a first osteotomy groove, the first osteotomy groove is located in the side, opposite to the main body part, of the first positioning boss, the second osteotomy part comprises a second positioning boss and a second osteotomy groove, and the second osteotomy groove is located in the side, opposite to the main body part, of the second positioning boss; and the distance h2 from the second osteotomy groove to the second positioning boss is larger than or smaller than the distance h1 from the first osteotomy groove to the first positioning boss, so that osteotomy guidance of various osteotomy quantities is met by utilizing the first osteotomy groove and the second osteotomy groove, the number of osteotomy tools which are operated and replaced is reduced, and the osteotomy operation is simplified.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an osteotomy device and a distal femoral osteotomy block. Background technique [0002] In unicondylar knee replacement surgery, the distal femoral osteotomy block is usually fixed and matched with the distal femoral osteotomy positioning tool to perform the distal femoral osteotomy. The thickness of the distal femoral osteotomy is generally consistent with the thickness of the distal end of the femoral condyle prosthesis of various manufacturers, that is, when the distal end of the femoral condyle prosthesis has different thicknesses, the distal femoral osteotomy blocks with different osteotomy thicknesses need to be used to complete the alignment. Osteotomy of the distal femur. [0003] However, the traditional distal femoral osteotomy block, after being positioned relative to the femur by the distal femoral osteotomy positioning tool, can only provide a single osteoto...

AI Technical Summary

Problems solved by technology

Due to the varying degree of wear of the distal femur and the size gap between different prostheses, to achieve accurate osteotomy of the femur, at least two distal femoral osteotomy blocks and supplementary osteotomy blocks of different sizes are required, so that not only It is not conducive to the storage of osteotomy tools, and the operator needs to change tools frequently, which is extremely inconvenient to operate

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