Prosthesis locking assembly for tibia and artificial knee joint prosthesis

Abstract

The invention provides a prosthesis locking assembly for tibia and an artificial knee joint prosthesis, which relate to the technical field of medical instruments, the prosthesis locking assembly comprises a tibia platform, a tibia liner and a fixing part; the tibia liner is clamped on the tibia platform, the movement of the tibia liner is limited, the tibia liner is prevented from moving away from the tibia platform; meanwhile, the fixing part is inserted into a fixing groove defined between the tibia platform and the tibia liner; resistance for preventing the tibia liner from rotating relative to the tibia platform is formed; the tibia liner is fixed on the tibia platform, the problem that in the prior art, a locking structure between a tibia support and the tibia liner is complex is solved. The thin wall and the thin groove can weaken the connection firmness between the tibia support and the tibia liner, abrasion can be caused after long-time use, connection is not firm, and the service life is short are solved, and the technical effects that the locking structure between the tibia platform and the tibia liner is simplified, the connection firmness is improved, and the service life of the tibia prosthesis is effectively prolonged are achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a tibial prosthesis locking assembly and an artificial knee joint prosthesis. Background technique [0002] At present, knee replacement surgery is the most fundamental treatment plan for knee joint diseases and injuries in the world. In replacement surgery, a joint prosthesis, also known as an artificial knee joint, is implanted into the human body to replace the natural knee joint of the human body. ;With the gradual advancement of science and technology, the further requirements for artificial knee joints and replacement surgery are getting higher and higher. People not only hope to reduce pain, but also hope to improve the service life, and hope that the postoperative recovery effect will be better, and even hope to achieve normal health. Human level, for this reason, various artificial knee joints come out gradually, and various ideas and assumptions are put forward ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a tibial prosthesis locking assembly and artificial knee joint prosthesis to alleviate the complex locking structure between the tibial tray and the tibial liner existing in the prior art, and the thin walls and fine grooves will weaken The firmness of the connection between the tibial tray and the tibial liner, long-term use will cause wear and tear, resulting in a weak connection and a technical problem of poor service life

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