An orthopedic joint osteotomy replacement device

Abstract

The invention discloses an orthopedic joint osteotomy and replacement instrument, which is characterized in that it comprises a base, a first support plate, a second support plate and an osteotomy component, the first support plate is used for supporting the thigh, and the second support plate is used for To support the calf position; one end of the first support plate and one end of the second support plate are vertically hinged through a hinge member. The relative angle between the femur and the tibia is relatively fixed, and the osteotomy is fixed on the slider, and the precise position movement can be realized through the axial driving part (screw motor), and at the same time, it is not easy to shift after the position is determined. The two sides of the fixed seat of the osteotomy are connected with the sliders on both sides in a sliding up and down manner and fixed by the fixing piece, which can realize the adjustment of the contact position with the corresponding femur and tibia bone surface, so as to adapt to the size of the femur and tibia of different patients size requirements.

Description

technical field [0001] The invention relates to a medical device, in particular to a device for orthopedic joint osteotomy and replacement. Background technique [0002] Knee replacement is a joint replacement surgery. This surgery is very common in orthopaedic surgery. Simply speaking, it is to replace the damaged cartilage in the knee joint that affects the normal activities of the joint, and the drum surface below it. The artificially designed prosthesis component, the replacement is to perform an osteotomy, implant the prosthesis, and clean the articular surface through surgery. Each of these steps must take into account whether the relevant function will be affected, whether the prosthesis is suitable, and whether it is strong enough after fixation, etc. [0003] At present, knee replacement surgery is generally performed on a conventional operating bed, which has many problems. For example, in knee joint surgery, during the knee flexion operation, the knee cannot wait...

AI Technical Summary

Problems solved by technology

[0003] At present, knee replacement surgery is generally performed on a conventional operating bed, which has many problems. For example, in knee surgery, the knee cannot wait for better support during the operation of knee flexion, which is not conducive to maintaining the position of the bone. Cutting of tissues and placement of prostheses; osteotomes generally need to be positioned by inserting nails, so during the operation, bone tissue defects in non-treatment positions are caused, especially after misoperation of positioning, re-insertion, After implanting at a position close to the original round hole, the osteotomy device will easily be displaced during the operation, resulting in inaccurate positioning and osteotomy volume, resulting in errors in the fit of the prosthesis, affecting postoperative healing and secondary surgery. risks of surgery

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