Memory alloy femur fracture setting plate

Abstract

The invention relates to a memory alloy femur fracture setting plate which is a double-beam fracture setting plate. Rectangular holes are uniformly arranged in the surface of the double-beam fracturesetting plate along the length direction, surrounding arms in pairs are distributed on two sides of the double-beam fracture setting plate, and each pair of the surrounding arms form an open-ring-shaped structure which extends along one end of the length of the double-beam fracture setting plate to form a bent pressurizing hook. The fracture setting plate and the pressurizing hooks are integrallyformed, and a main structure of the fracture setting plate is formed by adopting double beams, so that surrounding force and bending resistance of the fracture setting plate can be improved effectively. The memory alloy femur fracture setting plate is reasonable in structure, safe, effective, simple and convenient to operate and convenient for femur fracture inside fixing and prosthesis second-time fracture restoration after total hip replacement.

Description

technical field [0001] The invention belongs to the technical field of medical device manufacturing, and in particular relates to a memory alloy femoral bone plate used for revision of femur fracture in orthopedic surgery and secondary fracture of prosthesis after hip joint replacement. Background technique [0002] With my country's population aging, proximal femoral fractures, such as femoral neck fractures in the trochanter, femoral intertrochanteric fractures, and femoral subtrochanteric fractures, are common serious injuries. Especially due to the anatomical particularity of the femoral neck, once a fracture occurs, its reduction and fixation are very difficult, and fracture nonunion and avascular necrosis of the femoral head often occur, so the number of artificial hip replacements also increases accordingly. Osteoporosis exists in different degrees in the elderly, and bed rest after joint replacement will aggravate osteoporosis, so minor postoperative trauma often lea...

AI Technical Summary

Problems solved by technology

[0005] 1. After the screw is installed in the threaded hole of the fixed steel plate, as time goes by, the screw will often loosen, which will affect the fixing effect

[0006] 2. The locked steel plate has technical problems such as complex structure, weak bending strength, and insufficient installation

[0008] 1. There is no suitable bone adapter for femoral neck fractures and secondary fractures after hip replacement

[0009] 2. At present, the shape memory alloy embracing device is a single-beam structure, and the embracing force after implantation is small, resulting in unreliable fixation or unstable prosthesis, which is the main complication of secondary fractures after surgery

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