Artificial total knee proximal tibia integrated making tool

Abstract

The invention belongs to the field of tools for medical operations in orthopedics department, in order to reduce steps of doctors in an artificial total knee arthroplasty operation and to improve operation efficiency on the basis of keeping stability; the artificial total knee proximal tibia integrated making tool provided by the invention comprises a sleeve and a main nail which is driven into anincision bone substance, wherein the main nail and the sleeve are in inserted clearance fit connection; a wing-shaped bone knife is arranged at the front end of the main nail; the wing-shaped bone knife comprises a knife drum, and a plurality of wing plates which are arranged at two sides of the outer wall of the knife drum and correspond to the wing-shaped structure of a tibial prothesis; the knife drum is of a hollow structure, and a hollow hole is a recovered hole that a columnar bone substance is incised; and linear grooves, which are used fr accommodating and expanding the wing plates, are correspondingly formed in the sleeve wall of the front section of the sleeve. With the application of the tool, conventional four-step artificial total knee arthroplasty can be shortened to be within 1h, so that operation efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of tools for orthopedic medical operations, and in particular relates to an integrated tool for preparing the bone bed at the proximal end of the tibia in artificial total knee joint surface replacement. Background technique [0002] With the aging of the population, changes in people's lifestyles, and higher requirements for quality of life, the number of artificial total knee resurfacing for the treatment of knee osteoarthritis has doubled, while the corresponding orthopedic surgeons are very talented. Therefore, it is urgent to simplify the operation steps as much as possible and improve the operation efficiency. Artificial total knee arthroplasty is exquisitely designed, but the steps are cumbersome and the operation is complicated, especially in the preparation of the proximal tibial bone bed, it is necessary to place a suitable type of tibial trial mold successively, nail two fixation screws, trephine open the p...

AI Technical Summary

Problems solved by technology

Artificial total knee arthroplasty is exquisitely designed, but the steps are cumbersome and the operation is complicated, especially in the preparation of the proximal tibial bone bed, it is necessary to place a suitable type of tibial trial mold successively, insert two fixation screws, trephine open the pulp, and pterygium bone. It takes at least 4 steps to open the bone grooves on both sides, and when fixing the nails, since the two nails need to be fixed one after another, the position of the trial mold is easily deflected during the process, resulting in the final position deviation of the prosthesis

Due to its complex design and many defects, it is in urgent need of improvement

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