Tibial plateau support extractor

Abstract

The invention relates to a tibial plateau support extractor which comprises an extractor body and a clamping and embedding mechanism, the clamping and embedding mechanism is fixed to the extractor body, and the clamping and embedding mechanism is used for adjusting the clamping and embedding range of the tibial plateau extractor so as to adapt to tibial plateau supports of different sizes; a sliding groove is formed in the extractor body, the clamping and embedding mechanism comprises a rotating knob, a gear, a rack, a front fixing plate and a rear fixing plate, the rotating knob is rotationally clamped and embedded in the extractor body, the gear is located in the sliding groove and fixed to the rotating knob, the rack is meshed with the gear, and the front fixing plate abuts against the outer wall of the extractor body. The front fixing plate is fixedly connected with the rack, the front fixing plate can be driven by the rack along with rotation of the gear to move in the direction away from or close to the extractor body, and the rear fixing plate is fixed to the outer wall of the extractor body. The tibial plateau extractor has the advantages that the structure of the single tibial plateau extractor can be adjusted according to the sizes of different tibial plateau supports, operation time is shortened, and peripheral bone injuries are reduced.

Description

technical field [0001] The present application relates to the technical field of medical devices, and in particular, to a tibial plateau tray extractor. Background technique [0002] In recent years, artificial knee joint prosthesis replacement has developed rapidly and matured, and more and more patients choose artificial knee joint prosthesis replacement. The tibial plateau bracket is often used in artificial knee joint prosthesis replacement, but patients may experience postoperative complications. Various unexpected circumstances have led to the need for revision surgery on the tibial plateau. [0003] During the research and improvement, the researchers found that in the existing technology, due to the different sizes of the tibial plateau support of patients, it is difficult to adapt the existing tibial plateau extractor to it. The tibial plateau extractor used for the second operation has the defect that a single tibial plateau extractor cannot adjust the structure a...

AI Technical Summary

Problems solved by technology

[0002] In recent years, artificial knee prosthesis has developed rapidly and matured, and more and more patients choose artificial knee prosthesis. In artificial knee prosthesis replacement, tibial plateau support is often used, but patients may experience postoperative Various unforeseen circumstances that lead to the need for revision surgery on the tibial plateau

[0003] During the research and improvement, the research and development personnel found that in the existing technology, due to the different sizes of the tibial plateau brackets of patients, it is difficult to adapt and adjust the existing tibial plateau extractors, and it is necessary to prepare to adapt to this before each revision operation. The tibial plateau extractor for this operation has the defect that a single tibial plateau extractor cannot adjust the structure according to the size of different tibial plateau supports

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