Function type Colles's fracture combined fixator

Abstract

The invention relates to the technical field of orthopedic medical devices, in particular to a functional combined fixer for distal radius fractures. The ball joint spring structure composed of screwing in the spring ball head, screwing in the spring rod, spring, internal and external threaded ball head bowl, lock pin slider with chute on both sides and ball top wire is a multi-directional and multi-angle wrist joint. The range of motion and flexibility provide the conditions. The outer hexagonal bowl, the bowl fastening cap, the bowl rod, the open lock needle wire, etc. are combined with the T-shaped lock needle structure and applied to the second metacarpal longitudinally through two threaded needles. Or make the best choice between the second metacarpal and the third metacarpal through a threaded needle in the horizontal direction. The hemispherical tooth surface bolt, the hemispherical tooth surface left and right screw nut, the left and right thread adjustment rod, the left and right rotation The angle-adjusting stable structure composed of screw nut bolts and left-right screw thread nuts can fix the wrist joint at a certain angle according to clinical needs, and it can be easily fixed with the angle to achieve a stable fixing effect, which greatly facilitates operation and Early functional mobility 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 structure, and its functional range of motion and flexibility have great limitations, especially the limitations of the locking pin structure. to greater difficulty

In the early stage of fracture healing, the best opportunity for functional activities is lost, which will lead to dysfunction of the wrist joint, which will add a lot of difficulty to the subsequent recovery of joint function, bring pain and economic burden to the patient, so it needs to be improved

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