Durable biomimetic alloy knuckle replacing member

Abstract

The invention discloses a durable biomimetic alloy knuckle replacing member. The knuckle replacing member comprises a joint body (1) and an in-marrow connector (2), wherein the joint body (1) is a biomimetic knuckle component designed according to human body biological mechanics; the in-marrow connector (2) is arranged at the bottom end of the joint body (1), adopts an integrated marrow cavity imitating structure, and is in biological merging and cooperation with a marrow lumen; the joint body (1) comprises a near end joint body and a joint main body; a fin cooperating structure or a slot cooperating structure is arranged on the top surface of the near end joint body and the top surface of the joint main body; and the near end joint body and the joint main body are in functional cooperation. The durable biomimetic alloy knuckle replacing member is based on the human body biological mechanics principle, the shape adaptability of developed biomimetic metacarpophalangeal joint replacing components is better, and combination of a binding surface and an osteotomy surface is firmer. The knuckle replacing member disclosed by the invention conforms to the human body biological mechanics structure, the mechanical cooperation performance is good, the cost is low, the clinical applicability is good, the postoperative functional rehabilitation of a patient is good, and the safety probationis greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of orthopedic instruments, and in particular relates to a durable bionic alloy knuckle replacement part with reasonable structure and convenient assembly. Background technique [0002] In the course of daily production and life, it is unavoidable for people to be injured by fractures in the palms and fingers caused by accidents, or due to diseases such as rheumatism, the movement of the palms and knuckles is limited, and even the normal physiological functions are lost. Conventional technical means is artificial prosthesis for joint replacement. However, repairing with the replaceable prosthesis of the prior art not only has poor initial stability, but also poor long-term bone growth and long-term stability. Especially in the case of full joint replacement, the aforementioned disadvantages are more prominent with the prior art artificial joint. The reason is that the conformability of the articular surface ...

AI Technical Summary

Problems solved by technology

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

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