Femoral lesser trochanter fracture reduction and fixation guider

Abstract

The invention relates to a femoral lesser trochanter fracture reduction and fixation guider. The guider comprises a two claw hook used for grasping lesser trochanter fracture blocks, a moving device,a screw and a hollow guider; the two claw hook comprises a first center part, a two claw part and a first connecting part; the moving device comprises a second center part, a second connecting part and a one claw part; the interior and the two ends of the hollow guider are hollow, a thread is arranged on the outer wall, a screw hole is formed in the one claw part, the hollow guider is screwed intothe screw hole of the one claw part, a Kirschner wire penetrates through one end of the hollow guider, then penetrates out of the other end of the hollow guider and then penetrates through a center notch of the two claw part. Accordingly, due to the fact that few parts are adopted, and no precision process exists, the cost is low; the linking relation between the structures is reasonable in design, and convenience is brought to use; the guider is applicable to reduction and fixation to the lesser trochanter fracture blocks in intertrochanteric fracture.

Description

technical field [0001] The invention relates to a medical device, in particular to a guider for reducing and fixing fractures of the lesser trochanter of the femur. Background technique [0002] In clinical practice, intertrochanteric fracture is one of the most common hip fractures in middle-aged and elderly people, and it is also called the last fracture of the elderly in the West. Intertrochanteric fractures with lesser trochanter fractures, that is, type III and type IV fractures with defects on the medial side of the proximal femur and displacement of the lesser trochanter, are relatively complicated to deal with. The lateral side of the lesser trochanter is the pressure bone trabecula, which maintains the normal neck-shaft angle. Good reduction and fixation of the lesser trochanter fracture can significantly increase the stability of the fracture end, which is beneficial to the healing of intertrochanteric fractures in the later stage, avoiding coxa varus, maintaining ...

AI Technical Summary

Problems solved by technology

It is difficult to ensure that it is in place at one time based on the operator’s experience alone, and there will inevitably be deviations in the exit point of the drill bit, and repeated drilling is required to achieve the ideal exit point. As a result of repeated drilling, it is difficult to avoid the fragmentation of the lesser trochanter bone , making the operation more difficult, and if there is neurovascular damage, the operation time will be prolonged

In order to fix the lesser trochanter fracture, it is not conducive to shortening the operation time, reducing bleeding and complications, increasing the risk of postoperative infection, and increasing the perioperative risk of the patient

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