Functional external fixing rack for knee-joint

Abstract

The invention relates to the field of orthopaedics medical appliance, especially an external functional knee joint fixing rack for early knee joint dirigation, which comprises locking pin structure composed of steel ball, C-formed tabular clamping steel ball rolling mechanism, C-formed tabular clamping steel ball slideway, U-formed head wedge steel ball support bar forming steel ball rolling slideway through vertically and horizontally matching, U-shaped rotating wheel comeandgo regulating and stabilizing mechanism, right locking pin mechanism, right adjustable arch form rack mechanism, eccentric shaft, left locking pin mechanism, and left adjustable arch form rack mechanism. The invention combines functional dissection of knee joint and biomechanics principle, is designed according to the traveling track of the unequal semidiameter center point of knee joint center of curvature, and has good stability and safety, good viability and flexibility for performing dirigation. The invention can be used for treating knee joint instability caused by ligamentous injury of knee joint, internal lateral ligament or ligamentum cruciatum anterius damage common in knee fracture, can effectively control crossrange activity of knee joint and promote ligament recovery.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to a functional knee joint external fixator for knee joint early functional exercise activities. Background technique [0002] The physiological anatomy of the knee joint is different from other joints. Its axis of motion is not fixed, and it moves backward or forward as the knee joint flexes or extends. The knee joint is the largest and most complex joint among all the joints in the body, and it is also the most prone to injury joints. Therefore, knee joint injuries and diseases are more common. For supracondylar fractures, intercondylar fractures, and tibial plateau fractures, after plate-bolt fixation, in order to maintain the stability of the fixation, long-leg plaster is often used as a supplementary fixation. It takes 4 weeks for the light one, and more than 6 weeks for the severe one to remove the plaster of the long legs, and then perform the functional ...

AI Technical Summary

Problems solved by technology

Therefore, not performing knee joint functional exercises in the early stage of any knee injury treatment is one of the main reasons for the occurrence of internal and external adhesions of the knee joint, leading to complications such as knee joint mobility impairment and even stiffness, which adds a lot of difficulty to subsequent treatment.

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