File handle and file for total hip replacement arthroplasty

Abstract

The invention provides a file handle for total hip replacement arthroplasty. The file handle comprises a handle body, wherein the handle body is provided with a connecting portion connected with a file, a handholding portion, and a transition portion arranged between the connecting portion and the handholding portion, and scale marks for calibrating the position of the center of a ball of a hip prosthesis are arranged on the transition portion. When the file is inserted into the femoral medullary cavity through the file handle and the corresponding scale mark is aligned with the vertex of the greater trochanter of the human femur, the center of the ball of the hip prosthesis which is about to enter the femoral medullary cavity can be aligned with the vertex of the greater trochanter of the human femur. The position of the center of the ball of the hip prosthesis is predetermined by means of the scale marks arranged on the transition portion, and the insertion depth of the file into the femoral medullary cavity is controlled, so that surgery efficiency is improved and surgery precision is improved.

Description

technical field [0001] The invention belongs to the technical field of surgical instruments, in particular to a file handle for total hip replacement and a file including the file handle. Background technique [0002] As a relatively mature technology, total hip replacement has been widely used in the treatment of various diseases of the hip joint. Whether the most suitable type of total hip artificial joint head and neck prosthesis can be selected during the operation is related to a series of problems after the operation. However, currently on the market, the depth of penetration into the femoral medullary cavity is judged based on the section of the femoral neck osteotomy. The osteotomy is performed at a position 10-15 cm above the lesser trochanter, and the file can be driven into the osteotomy. [0003] However, the anatomical characteristics of the human femur are diverse. The position of the osteotomy at 10-15 cm above the lesser trochanter is used as the insertion p...

AI Technical Summary

Problems solved by technology

[0003] However, the anatomical characteristics of the human femur are diverse. The position of the osteotomy at 10-15 cm above the lesser trochanter is used as the insertion point of the femoral rasp, which cannot accurately determine the height of the center of the femoral head, which seriously affects the effect of postoperative human activities. , affecting the adjustment of the length of the lower limbs, so that the equal length of the lower limbs on both sides and the appropriate tightness of the ligaments cannot be unified

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