Anterior dynamic ankle and foot rehabilitation orthosis

Abstract

The invention provides a front dynamic ankle rehabilitation orthotics device. The front dynamic ankle rehabilitation orthotics device comprises a wearing module, a brushless servo direct current motor, a motor driver, an ARM (advanced RISC (reduced instruction set computer) machine) controller, a battery and a composite transmission module, wherein the wearing module is fixed on a shank of a human body through a nylon adhesive fastener; a main shank support is correspondingly attached to the shank of the human body; a foot handle and a foot support are correspondingly attached to an ankle of the human body; the brushless servo direct current motor realizes the functions of reducing rotating speed and improving torque by improving the speed reducing ratio of harmonic assemblies in a harmonic speed-reducing transmission unit; the harmonic speed-reducing transmission unit is connected with a bevel gear transmission unit; a transmission reversing effect is achieved through a bevel gear, damping and buffering effects are achieved through a trapezoidal tooth synchronous belt, and power is transmitted to a simulative ankle joint position finally, so that the plantar flexion and dorsal flexion movement of an ankle joint can be realized; by arranging a limiting switch at the simulative ankle joint position, the ankle joint is prevented from moving at an over-large angle. The front dynamic ankle rehabilitation orthotics device can be used for assisting a patient suffering from an ankle injury in functional rehabilitative training, and is high in portability and high in control accuracy.

Description

technical field [0001] The invention relates to an orthosis, in particular to a front-mounted dynamic ankle-foot rehabilitation orthosis, which belongs to the technical field of rehabilitation medical devices. Background technique [0002] Comprehensive domestic and foreign research found that ankle-foot rehabilitation orthosis is mainly divided into three types: fixed ankle-foot rehabilitation orthosis, dynamic ankle-foot rehabilitation orthosis and dynamic ankle-foot rehabilitation orthosis. Among them, once the fixed ankle-foot orthosis is formed, its shape and size are generally not adjustable, and the force cannot be controlled according to the degree of injury of the patient. Therefore, the fixed ankle-foot orthosis has obvious disadvantages: it hinders normal ankle joint movement, and the gait is stiff , Long-term wear leads to a decline in local muscle function; it limits the kicking action when the foot is off the ground, and reduces the forward power during walking...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects that the fixed ankle-foot orthosis and the dynamic ankle-foot rehabilitation orthosis cannot provide auxiliary torque for the patient, and the existing dynamic ankle-foot orthosis has heavy weight, poor portability and low control precision, the present invention provides A front-mounted dynamic ankle-foot rehabilitation orthosis that uses motor drive to provide patients with auxiliary torque, good portability, and high control accuracy, to help patients with ankle-foot injuries perform ankle-foot functional rehabilitation training

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