Dynamic and static control external fixator for distal radius fracture

Abstract

An activity-inertia combined adjusting control outer fixer for a distal radius fracture is formed by an outer fixer frame body, steel needle fixing clamps connected onto the outer fixer frame body and steel needles clamped in the steel needle fixing clamps; the outer fixer frame body comprises a far end hole arc ring and a near end hole arc ring, which are arranged in parallel, have the same opening directions and are provided with multiple uniformly distributed holes respectively; a first thread connection rod is connected to the far end hole arc ring; the far end hole arc ring and the near end hole arc ring are connected by at least two second thread connection rods penetrating the holes; the far end hole arc ring, the first thread connection rod and the second thread connection rods are connected with the steel needles by the steel needle fixing clamps. The activity-inertia combined adjusting control outer fixer can be used for the reset of the distal radius fracture, and can perform joint-crossing fixing or local fracture fixing according to different treatment periods, thus more according with the anatomic and therapeutical demands of the distal radius fracture. The activity-inertia combined adjusting control outer fixer is suitable for treatment of various radius fractures, particularly, the opening distal radius fracture or a severe comminuted fracture.

Description

technical field [0001] The invention relates to an orthopedic surgical instrument, in particular to a novel external fixator for treating fractures of the distal end of the radius. Background technique [0002] Since Roger Anderson et al first reported the use of external fixators to treat distal radius fractures in 1944, various external fixators have emerged, such as Roger-Anderson external fixators, AO static external fixators, and Hoffman-II external fixators. And Orthofix external fixator, as well as Clyburn external fixator, Shen Yixin distal radius dynamic external fixator, etc. have been applied. Among them, dynamic fixation is to allow the wrist joint to gradually increase the range of motion by loosening the rotating device or removing some components during the fracture healing process, so as to achieve the purpose of early functional exercise. In order to meet the treatment requirements of various complex injuries, in recent years, unilateral dynamic external fi...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a dynamic and static control external fixator for distal radius fractures, to solve the technical problems of joint stiffness and poor reduction during the treatment of distal radius fractures; and to solve the problem of quickly and effectively fixing comminuted fractures

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