Degree-of-freedom-adjustable ankle-foot orthopedic device for stroke patients

Abstract

The invention discloses a degree-of-freedom-adjustable ankle-foot orthopedic device for stroke patients. The degree-of-freedom-adjustable ankle-foot orthopedic device comprises a shank mechanism, an ankle mechanism, a foot sole mechanism and an elastic tension providing mechanism, wherein the shank mechanism comprises an upper shank and a lower shank which are detachably connected; the ankle mechanism comprises an upper ankle and a lower ankle which are hinged to each other; the upper ankle and the lower shank can be limited by a first limiting mechanism to rotate in the certain angle, and canbe positioned at a limiting position, and the upper ankle and the lower ankle are limited by a second limiting mechanism and positioned at a limiting position; the foot sole mechanism comprises a front foot sole and a back foot sole which are hinged to each other, and the front foot sole and the back foot sole can be limited by a third limiting mechanism to rotate in the certain angle and can bepositioned at a limiting position; the lower end of an elastic tension providing assembly of the elastic tension providing mechanism is hinged to the back foot sole, and the upper end of the elastic tension providing assembly of the elastic tension providing mechanism is hinged to the lower shank through an adjusting assembly. The degree-of-freedom-adjustable ankle-foot orthopedic device for the stroke patients has the advantages that the fixation orthopedic function of the illness initial stage can be met, and gaits of normal persons can also be completely simulated during later rehabilitation training.

Description

technical field [0001] The invention relates to the technical field of rehabilitation medical equipment, in particular to an ankle-foot orthosis with adjustable degrees of freedom for stroke patients. Background technique [0002] Stroke, also known as "stroke" and "cerebrovascular accident", is an acute cerebrovascular disease. It is a group of diseases that cause brain tissue damage due to sudden rupture of blood vessels in the brain or blockage of blood vessels that prevent blood from flowing into the brain. Surveys show that stroke has become the number one cause of death in my country and the leading cause of disability among Chinese adults. Stroke has the characteristics of high morbidity, high mortality and high disability rate. For stroke patients, the activation of the calf anterior muscle group (tibialis anterior muscle) and lateral muscle group (peroneus longus brevis) is insufficient, and the muscles appear disuse muscle atrophy, resulting in difficulty in dorsif...

AI Technical Summary

Problems solved by technology

However, the ankle-foot orthosis in the prior art has a single function and is inconvenient to use, and the entire orthosis has few degrees of freedom. When the patient performs rehabilitation training, it cannot completely simulate the gait of a normal person.

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