Intelligent adjustable foot-drop rehabilitation orthotic device

Abstract

The invention discloses an intelligent adjustable foot-drop rehabilitation orthotic device which comprises a foot fixing component, a leg fixing component and a control unit. The control unit is used for controlling the foot fixing component to rotate relative to the leg fixing component through a pulling mechanism to make the foot fixing component in one of an initial state, a dorsiflexion state and a toe flexion state relative to the leg fixing component. The foot fixing component comprises a foot holder, the leg fixing component comprises a leg supporting rod, and the foot holder and the leg supporting rod are connected through an elastic part and capable of rotating in opposite directions under the action of the elastic part. The bottom of the foot fixing component is provided with a rope wheel corresponding to a forefoot position, a pulley is arranged at the rear end of the foot holder, and one end of a rope part is fixed to the leg fixing component while the other end of the rope part is connected with the rope wheel through the pulley. A power end of a driving motor is connected with the rope wheel, and the rope wheel is driven to rotate by the driving motor to adjust a relative position of the foot holder to the leg supporting rod. The intelligent adjustable foot-drop rehabilitation orthotic device has advantages that switching between dorsiflexion and toe flexion states of a foot can be automatically adjusted according to walking states of a user.

Description

technical field [0001] The invention relates to a foot drop rehabilitation training device, in particular to an intelligent adjustment type foot drop rehabilitation orthosis. Background technique [0002] Foot drop is one of the signs of orthopedic surgery, generally refers to the natural hanging of the foot, in a state of plantar flexion, unable to actively dorsiflexion and varus and valgus. The foot drop rehabilitation orthosis is an effective method and auxiliary device for the treatment of foot drop. It makes the foot and calf show dorsiflexion through auxiliary fixation and force, so as to continuously stimulate and promote the recovery of the corresponding disease. [0003] At present, foot drop orthosis is mainly divided into the following three types: [0004] The first type is the traditional foot support, which is made of resin plastic or carbon fiber as a whole, which can keep the foot and the calf in a nearly vertical position. When using it, you only need to we...

AI Technical Summary

Problems solved by technology

[0007] To sum up, several orthotics currently available can play a certain role in rehabilitation training and walking assistance for patients with foot drop, but they all have the following disadvantages: On the one hand, they cannot automatically adjust the foot according to the walking state of the person. On the other hand, the foot plate is designed as a whole, without considering that the human foot is composed of forefoot and rear foot, and there are multiple degrees of freedom between the front and rear feet. Patients with foot drop are often accompanied by forefoot and rear foot axes In the process of stretching, walking, and rehabilitation training, it is impossible to guarantee the foot condition of normal people, which is not conducive to the treatment of related diseases

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