Patella fracture reduction guide device

Abstract

The invention discloses a patella fracture reduction guide device. The device comprises a first clamping groove (1) and a second clamping groove (2) which are arc-shaped or broken-line-shaped, concavesurfaces of the first clamping groove (1) and the second clamping groove (2) are close to each other in an XY plane, and the first clamping groove (1) and the second clamping groove (2) are detachably connected; the first clamping groove (1) and the second clamping groove (2) are each provided with at least one protrusion (3) used for supporting patella; and the first clamping groove (1) and thesecond clamping groove (2) are provided with at least two groups of guide holes (4) which correspond to each other and are used for guiding a kirschner wire. The patella fracture reduction guide device is simple in structure, capable of enabling the patella to be accurately reduced and enabling the kirschner wire to be accurately driven into the patella, easy to operate and convenient to apply andpopularize.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a patella fracture reduction and guide device. Background technique [0002] The patella is the largest sesamoid bone in the human body, embedded in the quadriceps tendon, and is an important anatomical structure for straightening the knee joint. Patella fractures account for 1% to 2% of all fractures and are often caused by primary rupture of the quadriceps muscle bond or direct impact on the femur. The former are mostly transverse or longitudinal fractures, while the latter often cause comminuted fractures of the patella. [0003] For patella fracture surgery, accurate and rapid reduction and accurate and rapid penetration of the reset Kirschner wire are the difficulties and the key points of the whole operation. The treatment principles for patella fractures are: reliable reduction, restoration of the smooth properties of the articular surface, strong fixat...

AI Technical Summary

Problems solved by technology

At present, the devices for patella fracture reduction in clinical operations are mainly various fracture reduction forceps, including pointed, curved, flat, and other self-developed reduction forceps devices, but most of the reduction forceps contact the patella with the tip, clamp Hold a small part of the patella, and rely on the experience of the surgeon and intraoperative X-ray irradiation to complete the reduction of the patella fracture, but because the patella is surrounded by soft tendon and soft tissue, the bottom surface is uneven, and the upper part of the patella is a hemispherical raised structure, it is difficult To achieve the ideal reduction condition of the flat articular surface, and the operation is time-consuming and labor-intensive, and the operator is frequently exposed to radiation during the operation

[0005] Moreover, after the fracture reduction is completed, Kirschner wire fixation or screw implantation after Kirschner wire fixation is required. However, the existing patella fracture fixation device has no guiding effect on subsequent Kirschner wire fixation. Most of the surgeons use their personal experience to drive two Kirschner wires to the ideal position of the patella with the help of intraoperative X-rays.

For different operators, the difficulty of operation is quite different, and the satisfaction of reduction is low

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