Stent for knee arthroplasty

Abstract

The invention discloses a stent for knee arthroplasty. The stent comprises a support bracket A, a fixing bracket, a support bracket B and a fixing rod, wherein, the support bracket A and the support bracket B are portal frames, and a plurality of clamping grooves are arranged on a cross beam A and a cross beam B; The two ends of the fixing bar are respectively clamped on the cross beam A and the cross beam B, and the fixing bracket is sleeved on the fixing bar, wherein; The fixing bracket comprises a cross bar A, a snap ring, clip A, a cross bar B, slot plate, a collar A, a bottom plate, a collar B, a clip A, a clip B, a collar A and a collar B are fixed on both sides of the bottom of the groove plate, a bottom plate is arranged between the bottom of the collar A and the collar B, one endof the cross bar A is fixed on the collar A, one end of the cross bar B is fixed on the collar B, two ends of the clamp ring are clamped on the cross bar A, and the cross bar B is clamped and fixed byclips A and clips B respectively. The invention has the advantages of short operation time, less bleeding, less medical personnel required and convenient use.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a bracket for knee joint replacement. Background technique [0002] At present, in the total knee arthroplasty (TKA) operation, it is necessary to keep the knee joint flexed during the osteotomy operation in order to expose the required osteotomy surface of the femur and tibia, especially during the osteotomy of the femur and tibia and the installation of the prosthesis The knee joint needs to be bent and be perpendicular to the bed surface. During this operation, an assistant needs to fix the affected limb with bare hands. Due to the long operation time, bare hands are prone to fatigue, and unreliable fixation of the affected limb may cause deviation of the femoral or tibial osteotomy. This affects the installation of the femoral and tibial prosthesis side of the knee joint and the correction of the force line of the affected limb, which eventually leads to s...

AI Technical Summary

Problems solved by technology

It can be seen that the patient's legs cannot be fixed and will move during the operation, and the patient's legs cannot be adjusted to move left and right according to the needs of the operation, and the telescopic angle of the thigh and calf cannot be adjusted and fixed, resulting in long operation time and excessive bleeding. Many medical staff are required, and it is inconvenient to use

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