Orthopedic joint osteotomy replacement instrument

Abstract

The invention relates to an orthopedic joint osteotomy replacement instrument, which is characterized in that the orthopedic joint osteotomy replacement instrument comprises a base, a first supporting plate, a second supporting plate and an osteotomy component, the first supporting plate is used for supporting a thigh part, and the second supporting plate is used for supporting a shank part; one end of the first supporting plate and one end of the second supporting plate are longitudinally hinged by a hinge component, an external positioning structure is adopted, due to the fact that the thigh and the shank are supported by the first supporting plate and the second supporting plate, the relative angle of the thigh and the relative angle of the tibia are relatively fixed, the osteotomy device is fixed to the sliding block, accurate position movement can be achieved through an axial driving component (a lead screw motor), meanwhile, displacement is not prone to occurring after the position is determined, the two sides of a fixing base of the osteotomy device are connected with sliding blocks on the two sides in an up-down sliding mode respectively and fixed through fixing pieces, and adjustment of the bone surface contact positions of the thighbone and the tibia can be achieved; and therefore, the requirements of sizes of thighbones and tibia parts of different patients are met.

Description

technical field [0001] The invention relates to a medical device, in particular to an orthopedic joint osteotomy and replacement device. Background technique [0002] Knee replacement is a joint replacement operation. This operation is very common in orthopedic surgery. Simply put, it is to replace the damaged cartilage in the knee joint that affects the normal movement of the joint, and the drumhead below it. The artificially designed prosthetic components for adults need to be replaced by surgery, osteotomy, implantation of the prosthesis, and cleaning of the articular surface. Each of these steps must consider whether the relevant functions will be affected, whether the prosthesis is suitable, and whether it is firm 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 surgery, the knee cannot wait for better support during the operation of knee flexi...

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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