Memory alloy greater trochanter embracing fixator

Abstract

The invention relates to a memory alloy greater trochanter embracing fixator which comprises a main reinforcement, wherein the main reinforcement is made of a NiTi shape memory alloy plate, the plate surfaces of the main reinforcement are positioned in the left and right vertical directions, the bottom end of the left side edge of the main reinforcement is connected with the right end of a left embracing arm made of the NiTi shape memory alloy plate into a whole, the plate surfaces of the left embracing arm are positioned in the left and right vertical directions, the left embracing arm protrudes towards the upper left, a plurality of left anti-skid disengaging teeth made of the NiTi shape memory alloy plate are uniformly distributed on the side edge of top of the left embracing arm, the plate surfaces of the plurality of left anti-skid disengaging teeth are positioned in the left and right vertical directions, and the bottom side edges of the plurality of left anti-skid disengaging teeth are connected with the side edge of top of the left embracing arm into a whole. The invention aims to provide the memory alloy greater trochanter embracing fixator which has the advantages that a greater trochanter can be reliably and effectively held and fixed, an incision does not need to be excessively extended during an operation, the operation time can be shortened, the amount of bleeding is reduced, the operation is simple and convenient, and a greater trochanter steel plate used in existing hip replacement of patients with intertrochanteric fractures can be effectively replaced.

Description

technical field [0001] The invention relates to a memory alloy large trochanter embracing device. Background technique [0002] Intertrochanteric fracture, also known as intertrochanteric fracture, is clinically more common in elderly patients over 60 years old. Osteoporosis is serious in the elderly, and it is easy to cause fractures. Cases of intertrochanteric fracture trauma in the elderly—intertrochanteric fracture trauma is mostly caused by violence. Such as traffic accident injuries, falls, crush injuries and sudden incidents causing hip fractures caused by direct external forces. It accounts for 4.5% of systemic fractures, of which unstable fractures account for 35% to 40%. In the past, the traditional concept of treating rib fractures was to adopt conservative treatment for intertrochanteric fractures of the elderly. There are many complications with other organs, resulting in increased mortality. With the maturity of artificial joint technology, artificial hip ...

AI Technical Summary

Problems solved by technology

Improper fixation will lead to poor postoperative hip abduction function

At present, according to the patient's fracture line and broken bone fragments, the distal ulna trauma fixation plate or the proximal humerus plate are used for fixation. Because the plate design is not for the fixation of the greater trochanteric fracture, secondary plastic surgery is often required. , although the fixing effect can be achieved, the secondary shaping of the steel plate may cause problems such as low matching degree of steel plate shape and reduced strength

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