Oval corrugated pipe bending actuator and wearable finger flexion and extension rehabilitation device

Abstract

The invention discloses an oval corrugated pipe bending actuator and a wearable finger flexion and extension rehabilitation device. The oval corrugated pipe bending actuator comprises an oval corrugated pipe and a joint fixer, wherein the oval corrugated pipe is provided with a closed end and an open end, and the open end is suitable for being connected to inflation equipment, so that the oval corrugated pipe is inflated through the inflation equipment; the cross section of the oval corrugated pipe is elliptical, so that the oval corrugated pipe is bent around the axis of a long axis which isapproximately parallel to the ellipse when being inflated; and the joint fixer is arranged on the oval corrugated pipe and is suitable for being fixed to a wearing carrier. According to the oval corrugated pipe bending actuator and the wearable finger flexion and extension rehabilitation device provided by the embodiment of the invention, the single bending direction is achieved under the condition that external constraints are not adopted, the flexibility is better, and the rehabilitation training effect is better. Besides, due to the fact that external constraint is not needed, the structureis simplified, fingers can bend freely in the narrow space of the hand, and interference and other problems do not occur.

Description

technical field [0001] The invention relates to a rehabilitation treatment device, in particular to an elliptical bellows bending actuator and a wearable finger flexion and extension rehabilitation device. Background technique [0002] Stroke has the characteristics of high morbidity, high mortality and high disability rate. According to statistics, there are about 15 million stroke patients in China. At present, stroke is one of the main causes of hand function failure. After stroke, patients may experience a variety of neurological deficit symptoms, among which hemiplegia and movement disorders are the most common, which are specifically manifested in the excessive activation of flexor muscles and insufficient strength between antagonistic muscle groups. The hand and wrist caused by balance are always in a flexed state, and the fingers and wrist cannot be extended. [0003] Clinical studies have shown that compulsory exercise therapy is an effective means of neurorehabil...

AI Technical Summary

Problems solved by technology

In the related art, according to the principle of hand joint function, the finger flexion and extension actuator is used to make the patient's hand muscles perform mandatory movements under constraints. However, the inventor found that the finger flexion and extension actuator in the related art has insufficient flexibility. Difficulty fitting into tight spaces for hands, etc.

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