High-shape-adaptability bionic cooperation joint between shin bone and ankle bone

Abstract

The invention discloses a high-shape-adaptability bionic cooperation joint between shin bone and ankle bone. The upper part of the cooperation joint (1) is a shin bone cooperation surface (2) cooperating with a shin bone joint surface, the lower part of the cooperation joint is an ankle bone cooperation surface cooperating with an ankle bone joint surface, the shin bone cooperation surface (2) isa concave globular arc surface designed through imitating human body biomechanics, and a lower convex V-shaped fin (4) cooperating with the ankle bone joint surface is arranged on the ankle bone cooperation surface (3). The high-shape-adaptability bionic cooperation joint between shin bone and ankle bone is designed based on the human body biomechanics principle, so that the whole and the cooperation surfaces of the bionic cooperation joint conform to the characteristics of an original bone structure; and besides, the situations that the cooperation of the bionic cooperation joint with the shin bone, the ankle bone or replacement components is proper, sliding is smooth and round, and the stability is better are guaranteed, so that long-term stable work of the bionic cooperation joint afterreplacement is maintained, and pain of a surgery recipient is reduced. The high-shape-adaptability bionic cooperation joint between shin bone and ankle bone disclosed by the invention is convenient in clinical use, and is convenient to popularize and apply, the postoperative functions of the patient is well restored, and the safe use period is greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of orthopedic instruments, and in particular relates to a highly conformable tibial-talus bionic fitting joint which conforms to the biomechanical structure of the human body and is easy to install and low in cost. Background technique [0002] In the process of daily production and life, people will inevitably be injured by accidental fractures. For example, sprained feet, or tibial and talus fractures caused by sprained feet are very common. Simple fractures are easier to deal with, and can be reset and fixed. However, if the end surface of the bone joint is defective due to a fracture at the joint site, sometimes the entire joint and the associated bones are severely damaged and have to be replaced. The articular defect between the lower end surface of the tibia and the talus is repaired with the replaceable prosthesis of the prior art, not only the initial stability is not good, but also the long-term ...

AI Technical Summary

Problems solved by technology

However, if the end surface of the bone joint is defective due to a fracture at the joint site, sometimes the entire joint and associated bones are severely damaged and have to be replaced

The articular defect between the lower end of the tibia and the talus is repaired with the replaceable prosthesis of the prior art, not only the initial stability is not good, but also the long-term bone growth is not good, and the long-term stability is not good

Especially, when the joint needs to be replaced, if the prior art artificial joint is replaced together with the end prosthesis of the talus, then the aforementioned disadvantages will become more prominent.

The reason is that the conformity of the articular surface of the prosthesis is poor, and the connection structure of the mating surface is unreasonable, which leads to the occurrence of the above adverse effects

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