knee orthosis

Abstract

The invention discloses a knee joint orthosis, relates to the technical field of orthotics, and solves the problems of single function and poor orthopedic effect of the existing orthosis. The support column is provided with a universal ball, and the inner plate is provided with a universal shell, and the universal ball is movably connected with the universal shell; the inner plate is provided with a limit piece, which includes two connecting rods and a limit ball. The positioning ball is movably connected with the connecting rod; the outer plate is provided with a limit surface for the limit ball to contact and roll; the limit surface includes a convex surface and a concave surface, and the convex surface and the concave surface are arranged alternately; when the thigh and calf are stretched and straightened, the limit ball Located at the center of the convex surface; when the thigh and calf are bent vertically, the limit ball is located at the center of the concave surface; it can not only support the knee joint for extension and flexion, but also support the knee joint for internal and external rotation, and follow the extension and flexion of the knee joint Adaptively change the internal and external rotation performance of the knee joint through movement.

Description

technical field [0001] The present invention relates to the technical field of orthoses, and more particularly, it relates to knee orthoses. Background technique [0002] The knee joint is composed of the lower end of the femur, the upper end of the tibia, and the patella. It is the largest and most complex joint in the human body. It bears a lot of weight and has a large amount of exercise. It belongs to the pulley joint and is the hub of lower limb activities. Therefore, its injury rate ranks first among all joints. Among them, one of the most common diseases is osteoarthritis, which is a chronic joint disease characterized by the degeneration, wear and tear of articular cartilage and bone hyperplasia. Long-term and increased joint load is the main external cause of the disease . At the same time, knee articular cartilage wear, meniscus injury, tibial plateau fracture, and tibial node avascular necrosis are also common diseases of the knee joint, and the occurrence of th...

AI Technical Summary

Problems solved by technology

[0005] However, most of the existing knee orthoses can only support the knee joint for flexion and extension, and are limited by the hinged part of the orthosis, which cannot support the internal and external rotation of the knee joint, which may easily cause damage to the cartilage, meniscus, and auxiliary ligament and other auxiliary functions degenerate during the orthopedic process; while a small number of knee orthoses can manually adjust the hinge to support the internal and external rotation of the knee joint, but the operation is difficult and the flexibility is poor, which can easily lead to knee joint internal and external rotation. Deviation from normal motor performance after external rotation movement correction

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