Medical device applied for patella fracture repair

Abstract

The present invention provides a medical device applied for patella fracture repair. The medical device applied for the patella fracture repair comprises a rotating mechanism, a tensioning device anda power source arranged at a bottom part of the rotating mechanism and for providing power for the tensioning device, the tensioning device comprises a single wire head tensioning mechanism for tightening single head wire, a double wire head tensioning mechanism for tightening double head wire, and a tensioning control mechanism used for receiving the power by the power source and transmitting tothe single wire head tensioning mechanism / double wire head tensioning mechanism, the single wire head tensioning mechanism is located at one end of the rotating mechanism, the double wire head tensioning mechanism is located at the other end of the rotating mechanism, the single wire head tensioning mechanism is located in a working position, the double wire head tensioning mechanism is in an idleposition, the tensioning control mechanism can be arranged in a combining state and a separating state with the single wire head tensioning mechanism and double wire head tensioning mechanism in an inter-switchable manner, and under an initial state, the tensioning control mechanism is combined with the single wire head tensioning mechanism and separated with the double wire head tensioning mechanism.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical device applied to patella fracture repair. Background technique [0002] The patella is also known as the kneecap. The patella protects the knee joint and prevents the quadriceps tendon from rubbing against the cartilage surface of the femoral condyle. It transmits the power of the quadriceps and participates in the formation of the knee extension device. It also maintains the knee joint in a half-squat position. The stability of the knee joint can prevent excessive adduction, abduction, and extension and flexion of the knee joint, and the function of the car chain can increase the rotation ability of the knee joint. Patients with patellar fractures are often treated in clinical medicine. In severe cases, patellar fractures must be passed Repair surgery is performed. Firstly, the main body of the patella and the fractured part are reset, and then multiple steel ...

AI Technical Summary

Problems solved by technology

[0002] The patella is also known as the kneecap. The patella protects the knee joint and prevents the quadriceps tendon from rubbing against the cartilage surface of the femoral condyle. It transmits the power of the quadriceps and participates in the formation of the knee extension device. It also maintains the knee joint in a half-squat position. The stability of the knee joint can prevent excessive adduction, abduction, and extension and flexion of the knee joint, and the function of the car chain can increase the rotation ability of the knee joint. Patients with patellar fractures are often treated in clinical medicine. In severe cases, patellar fractures must be passed Repair surgery is performed. Firstly, the main body of the patella and the fractured part are reset, and then multiple steel nails are used to connect the main body of the patella to the fractured part. Arranged in an array in the circumferential direction. Finally, use steel wires to pass through multiple steel nails and tighten, cut, and tie them tightly. In the process of tightening the steel wires, it is often necessary to use tightening equipment to operate. Divided into two situations, one is single-thread extension, and the other is double-thread extension. At present, two different and independent tightening devices are used for single-thread tightening and double-thread tightening. This not only wastes the medical cost, but also affects the convenience of the doctor's operation. Therefore, our team has designed a smart structure, convenient operation, and reduced medical costs. A medical device capable of tightening applied to patella fracture repair

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