Minimally invasive reduction device for intertrochanteric fracture

Abstract

The invention discloses a minimally invasive reducer for femoral intertrochanteric, wherein the lateral clip rests on the lateral side of the proximal femur and the medial clip rests on the bone cortex of the medial side of the proximal femoral intertrochanteric fracture block, and the two clips are lifted to completely close the fracture block, thereby facilitating the next step of fixation; thetwo clamps are respectively slidably fitted on the main arm and the main arm of the plier-shaped mechanism, and the two main arms are hinged together at about the middle position, and the clamps are arbitrarily fixed in the sliding groove of the head of the main arm by bolts; and the chuck is connected with the main arm through a rotating joint, wherein the chuck can be arbitrarily fixed in a sliding groove of the rotating joint through bolts, and the rotating joint is also fixed on the main arm through bolts. A locking mechanism is added to the rear part of the pliers mechanism, so that the clamping position of the chuck and the clamping force can be locked by fixing the relative positions of the two main arms. The whole mechanism has the advantages of simple structure, low cost and strong practicability.

Description

technical field [0001] The invention relates to the field of medical instruments, more specifically, it relates to a minimally invasive resetter for femoral intertrochanteric fractures. Background technique [0002] With the continuous acceleration of the aging process of my country's population and the rapid development of the transportation industry, intertrochanteric fractures are becoming more and more common at this stage, and the incidence rate is on the rise, accounting for about 50% of the total number of hip fractures. [0003] According to the anatomical and biomechanical characteristics of the intertrochanteric femoral intertrochanteric fractures, most intertrochanteric fractures have obvious displacement and unstable fractures. At present, the main method of treating intertrochanteric fractures is surgery and internal fixation. At present, the requirements for the reduction of intertrochanteric fractures are: anatomical reduction, good alignment, and tight struc...

AI Technical Summary

Problems solved by technology

However, these devices for assisting the reduction of intertrochanteric fractures generally have the following disadvantages: because there are many neurovascular bundles in the medial side of intertrochanteric fractures, and the limitation of medial space, these reduction devices are difficult to operate during the reduction process, directly prolonging the operation time and affect surgical outcomes

Secondly, these reset devices require the operator or assistant to fix during the operation, which increases the doctor's workload and intraoperative X-ray radiation.

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