Active type knee-hyperextension lower-limb rehabilitation exoskeleton device

Abstract

The invention belongs to the technical field of rehabilitation orthotics, and discloses an active type knee-hyperextension lower-limb rehabilitation exoskeleton device. The active type knee-hyperextension lower-limb rehabilitation exoskeleton device comprises a back-part assembly, a right-side waist-part control assembly, a left-side waist-part control assembly, a right-side knee joint motion execution assembly and a left-side knee joint motion execution assembly, wherein the right-side waist-part control assembly and the left-side waist-part control assembly are respectively arranged on the back-part assembly in a symmetric mode; and the right-side waist-part control assembly and the left-side waist-part control assembly are correspondingly connected with the right-side knee joint motionexecution assembly and the left-side knee joint motion execution assembly. The exoskeleton device provided by the invention has the characteristics of comfort in wearing, compactness in structure, reliability in positioning, long endurance time and large bearing capacity, can effectively reinforce autonomous control of a patient suffering from knee hyperextension, reduces the weight of a motion execution assembly at the knee joint of the patient and local stress of the lower limbs of the patient in the wearing process, and does not affect the functional activities of the patient at the same time.

Description

technical field [0001] The invention belongs to the related technical field of rehabilitation orthoses, and more specifically relates to an active knee hyperextension lower limb rehabilitation exoskeleton device. Background technique [0002] Stroke is one of the diseases with high morbidity and disability rate. About 80% of patients are accompanied by functional impairments such as limbs, speech, and consciousness, and 40% to 68% of patients have knee hyperextension. Studies have shown that patients with knee hyperextension have poor control over body balance, especially lack of control over knee extension from 0° to 15°, and patients often cannot achieve normal femur-tibia alignment during walking, which interferes with Normal body alignment during the stance phase, which in turn prevents the patient from flexing the knee before the swing phase begins. [0003] The traditional rehabilitation exoskeletons for knee hyperextension are mostly passive orthoses, typically such ...

AI Technical Summary

Problems solved by technology

The Swedish knee hyperextension orthosis is likely to cause excessive pressure on the patient's knee, resulting in poor blood circulation in the entire patient's lower limbs or side effects such as obvious pain

At the same time, it has no knee joint setting, which will also affect functional activities such as standing up, sitting down, and going up and down stairs to a certain extent.

Due to poor knee control in stroke patients, AFO correction may not be ideal for patients with more hyperextended knees

The weight of KAFO is heavy for hemiplegic patients, which will affect the patient's walking ability, increase energy consumption, and easily cause fatigue, etc.

In terms of commonality, most traditional passive orthoses lack relevant settings to enhance the patient's active movement control ability, and cannot effectively enhance the patient's ability to control knee extension within a specific angle, and most patients need one-on-one external assistance from doctors during the rehabilitation process , greatly increased social pressure

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