External fixator for bone rehabilitation

Abstract

The invention discloses an external fixator for bone rehabilitation. According to the main points of the technical scheme, the external fixator comprises fixing ring members and telescopic link members, wherein rotational corner connectors are arranged on the circumferential outer side walls of the fixing ring members; each rotational corner connector comprises a fixing ring connecting rod and a link connecting rod; one end of each fixing ring connecting rod is used for being axially and rotationally connected with one corresponding fixing ring member; the other end of each link connecting rodis used for being connected with one corresponding telescopic link member; the rotation axis of rotational connection of each fixing ring connecting rod and the corresponding fixing ring member is kept consistent with the length direction of the fixing ring connecting rod; the length direction of each link connecting rod is set in perpendicular to that of the corresponding fixing ring connectingrod; each telescopic link member comprises link mounting elements which are used for being detachably and fixedly connected with the corresponding link connecting rods; each link mounting element andthe corresponding link connecting rod are in slipping detachable and fixed connection; and the slipping direction between each link mounting element and the corresponding link connecting rod is the length direction of the link connecting rod. The fixator can effectively improve the flexibility when mounted.

Description

technical field [0001] The invention relates to the technical field of orthopedic correction and rehabilitation equipment, and more specifically relates to an external fixator for bone rehabilitation. Background technique [0002] Fixation devices are indispensable in surgical orthopedic treatment. Traditional fixation methods generally use internal fixation with steel plates, and now there are also external fixation methods with less trauma. Commonly used external fixation devices are mainly Ilizarov external fixator and Taylor skeleton. The Ilizarov technique uses multiplanar thin Kirschner wires to penetrate the limb and bone tissue and connect to a ring fixator. Dr. Taylor improved the Ilizarov external fixation system by connecting six telescopic extension rods obliquely to the proximal and distal rings, and they can rotate around the rotation axis at the connection points. Just adjust the length of one of the extension rods, one The ring changes position relative to ...

AI Technical Summary

Problems solved by technology

[0003] However, the two ends of the existing extension rod are respectively connected to the end faces of the proximal ring and the distal ring, so that the extension rod can only rotate around one rotation axis on the ring, resulting in the need for multiple fine-tuning of the existing fixing frame during installation. , it is even difficult to achieve the best installation effect, thus greatly reducing the flexibility of the fixing frame during installation

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