Automatic traction device for femoral fracture setting operation

Abstract

The invention discloses an automatic traction device for a femoral fracture setting operation. A supporting frame has a triangular structure and is used for supporting the lower limbs of a patient toform and keep a leg bending state; the supporting frame comprises a supporting bottom face arranged horizontally, a thigh bearing face and a shank bearing face, wherein the thigh bearing face and theshank bearing face are arranged at the two ends of the supporting bottom face oppositely; the ends of every two adjacent faces are hinged; and the lengths of all the faces can be adjusted and locked through an edge adjusting mechanism. Two thighbone kirschner wire mounting positions are arranged in parallel at an interval and each thighbone kirschner wire mounting position is provided with two thighbone kirschner wire mounting structures arranged on the two sides of the thigh bearing surface respectively. The automatic traction device is stable in operation, the operation difficulty can be reduced, and the broken bone traction reduction quality is improved.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to an automatic traction device for femoral fracture osteosynthesis, which is suitable for osteosynthesis of femoral intramedullary nail implantation and percutaneous bone plate implantation. Background technique [0002] Femoral fracture is a common clinical fracture. Due to the strong muscle strength of the leg, patients with tibial fractures often experience shortening deformity under the pull of the muscle. It is difficult to reset, restore its length and maintain it effectively during the operation. If the anatomical reduction cannot be performed during the operation, complications such as malunion and poor alignment of the lower limbs may occur after the operation, which may lead to traumatic arthritis or osteoarthritis, seriously affecting the limb function and quality of life of the patient. [0003] Intramedullary nailing or percutaneous minimally invasiv...

AI Technical Summary

Problems solved by technology

[0006] 1. The stability of the device is low. In the case of keeping the angle of the bent legs unchanged, the overall height of the device is adjusted by the four jacking bolts at the bottom. It is difficult to adjust the four jacking bolts synchronously, and it is easy to cause the whole device to tilt ;

[0007] 2. The device as a whole is supported by only four jacking bolts and is prevented from being placed on the operating bed. Due to the certain deformability of the surface of the operating bed, the device is placed unstable. During the operation, there is shaking or the jacking bolts sink, causing the device to tilt , affect the accuracy of traction reduction, and then affect the smooth progress of the operation;

[0008] 3. All the adjustments of the traction device of the limb during the operation are manually adjusted, which increases the difficulty of operation for the operator and prolongs the operation time;

[0009] 4. In the limb traction device, it is impossible to correct the deformity of the broken femur in any direction, and there is a blind area in use

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