A multi-degree-of-freedom thumb rehabilitation training device for hemiplegic patients

Abstract

The invention discloses a thumb rehabilitation training device with multiple degrees of freedom for hemiplegic patients. The device includes a supporting base, a driving sensing mechanism I and a driving sensing mechanism II, wherein the driving sensing mechanism I and the driving sensing mechanism II are fixed on the supporting base, and composed of optical-electricity encoders, direct-current torque motors, magnetorheological fluid dampers and torque sensors; the output end of the driving sensing mechanism I is connected to one end of an arc-shaped guiding rail through a coupler I, and the other end of the arch-shaped guiding rail is fixed on a supporting plate I successively through a connecting rod I, a connecting rod II and a connecting rod III; the connecting rod III is fixed on the supporting plate I through a bearing I, and the supporting plate I is fixed on the supporting base; the output end of the driving sensing mechanism II is connected to a driving shaft of a finger training mechanism through a coupler II, the finger training mechanism includes a training rod, a front finger sleeve, a rear finger sleeve, a driving connector and the driving shaft, and the driving shaft is connected with a training rod in a transmission mode through the driving connector; the front end of the training rod is embedded into the arc-shaped guiding rail and slides along the arc-shaped guiding rail.

Description

technical field [0001] The invention relates to a multi-degree-of-freedom thumb rehabilitation training device for hemiplegic patients, belonging to the technical field of medical devices. Background technique [0002] "Stroke" (cerebralstroke), commonly known as "stroke" or "cerebrovascular accident" (cerebralvascularaccident, CVA), 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 prevents blood from flowing into the brain. It is the leading cause of disability in Chinese adults, and severe cases can cause death. By investigating the medical records of "stroke" patients in major hospitals, it can be found that even if the patients can survive, a large part of them still have disabilities, especially the sequelae of hand disabilities. The hand is a complex and very flexible part of the human body. In daily life, the hand is an indispensable tool...

AI Technical Summary

Problems solved by technology

However, most rehabilitation devices have restrictions on the rehabilitation training actions performed by the fingers, such as only holding and clapping, especially for the movement of the thumb, and because of the reasons of the training institution, it is impossible to achieve good training actions, which greatly affects the rehabilitation effect

Ordinary people's thumb has two joints to control its movements. Among them, the metacarpophalangeal joints simultaneously produce inward flexion and abduction and thumb-to-palm movements. Many dexterous movements in life require the production of thumb-to-palm movements. However, existing Few finger rehabilitation equipment can assist the thumb to produce this movement

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