Function type Colles's fracture combined fixator

Abstract

The present invention relates to the field of orthopedic medical device technology, in particular to a functional distal radius fracture combined fixator. A spherical joint spring structure, which consists of a circumflex spring ball end, a circumflex spring rod, a spring, an internal and external threaded ball end bowl, a lock-pin sliding block with a sliding slot on the two sides and a ball bowl top wire, provides the conditions for the wrist joint multi-directional and multi-angle moving range and the flexibility; the combined application of an external hexagonal ball bowl, a ball bowl fastening cap, a ball bowl rod and an open lock pin with a T-shaped lock pin structure provides the conditions for the optimal selection between the longitudinal penetration of two screw threaded pins into a second metacarpus or the horizontal penetration of one screw threaded pin into a second metacarpus and a third metacarpus; an angle-regulating stable structure, which comprises a semispherical geared latch, a semispherical geared left and right wire nut, a left and right screw threaded adjusting rod, a left and right wire nut pin and a left and right threaded nut can fix the wrist joint in a certain angle according to the clinical needs, thus greatly facilitating the angle-oriented fixation, achieving the stable fixing effect and bringing a lot of convenience to the operation and preliminary function activities of the wrist joint.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to a functional combined fixer for distal radius fractures. Background technique [0002] Distal radius fractures account for about 11% of systemic fractures and about 75% of forearm fractures, mostly in the elderly. Traditionally, the methods for treating distal radius fractures are manual reduction, plaster or splint external fixation. This type of therapy cannot carry out early functional activities; for closed fractures, open reduction and plate internal fixation will cause iatrogenic injury, the range of early functional activities is limited, and there is pain; the current application of unilateral multifunctional external fixation The device does not have the function of early mobilization; the dynamic external fixator for distal radius fractures adopts a simple ball joint structure, and its functional range of motion and flexibility have great limitations...

AI Technical Summary

Problems solved by technology

This kind of therapy cannot carry out early functional activities; for closed fractures, open reduction and plate internal fixation will cause iatrogenic injury, the range of early functional activities is limited, and there is pain; the current application of unilateral multifunctional external fixation The device does not have the function of early mobilization; the dynamic external fixator for distal radius fractures adopts a simple ball joint structu

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