Spherical universal joint and adjustable bionic external fixator for bone external fixator

Abstract

The invention relates to a spherical universal joint for an external bone fixator and a regulating type bionic external bone fixator. The spherical universal joint for the external bone fixator comprises a spherical head, a sleeve, a sleeve cover, a ball slot, a ball bowl, a locking shaft and a locking slide block, wherein the spherical head comprises a joint ball and a threaded type spherical universal joint connector A arranged on the joint ball, the joint ball is arranged on the inner side of the sleeve, the side of the joint ball close to the threaded type spherical universal joint connector A is contacted with the arc-shaped surface of the sleeve, the threaded type spherical universal joint connector A extends out of one end of the sleeve, the sleeve cover is fixedly connected with the other end of the sleeve, the outer side face of the sleeve cover is provided with a threaded type spherical universal joint connector B, and the inner side face of the sleeve cover is provided with a groove for arrangement of the locking slide block. The regulating type bionic external bone fixator with the spherical universal joint has the advantages of simple structure, light weight, low cost, regulating capability and flexible operation, and targeted and personalized combination and regulation can be realized.

Description

technical field [0001] The invention relates to a joint arranged on an external bone fixator and an external bone fixator. Background technique [0002] In the process of modernization of medical technology, the material and structure of bone external fixator have made great progress. The outstanding one is undoubtedly the hole ring type external fixator invented by Russian medical expert Ilizarov, the hole ring type external fixator and fine steel The needle stretching technology has changed the texture of the mechanical action mode and mechanical biological properties of the original external fixator, improved the regulation performance, and expanded the indications. It is a major advancement in the field of external fixator technology. Ilizarov's technology has also stimulated countless orthopedic surgeons' interest in learning, researching and applying external bone fixation technology. Later, Dror Paley in the United States compiled "Principles of Orthopedic Surgery", c...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a spherical universal joint for external fixator and control bionic external fixation that can meet the requirements of strong fixation in the early stage of fracture, elastic fixation with axial and comprehensive stress stimulation in the middle stage, and balanced fixation in the later stage. To solve the problem of compatibility between mechanical energy (mechanical environment) and biological energy (tissue regeneration) (the rationality of the mechanobiological environment), and to solve the problems of high manufacturing cost and expensive use of traditional bone external fixators

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