EMG controlled air-operated soft body rehabilitative mechanical hand

Abstract

The invention discloses an EMG controlled air-operated soft body rehabilitative mechanical hand. The mechanical hand can help a stroke patient or a patient suffering from hand disability conduct hand rehabilitation activity. Different from a traditional rigid body type mechanical hand, every finger of the soft body mechanical hand is a hollow cavity structure composed of soft materials (super-elastic materials like silicone rubber and the like), a fiber and a limit strained layer is arranged on the periphery, soft body fingers are designed by combining structures of bending distortion, extending distortion, distortion, torsional and extending distortion, and motion distortion is achieved through air-operated driving. The EMG controlled air-operated soft body rehabilitative mechanical hand can achieve multi-section type bending similar to human's fingers, drives bending and stretching of stroke fingers, and restores a patient's athletic ability. The air-operated soft body rehabilitative mechanical hand has the advantages of low rigidity, high safety, high comfort, low weight, low noise and the like, has more remarkable superiority compared with current traditional mechanical rigid body type rehabilitative hand, and has very wide application prospect in the field of rehabilitation.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of medical and health care equipment rehabilitation robots and industrial grippers, and especially designs an EMG-controlled pneumatic software rehabilitation manipulator, which is suitable for rehabilitation training and assisting grasping for elderly people with symptoms such as hand dysfunction caused by stroke patients. [0003] 【Background technique】 [0004] According to the statistics of the World Health Organization, 1 out of every 6 people in the world may suffer from a stroke; every 6 seconds, 1 person dies from a stroke; every 6 seconds, 1 person is permanently disabled due to a stroke... …Among the 30 million cerebral apoplexy patients in the world, China accounts for about 1 / 3, and cerebral apoplexy has become the number one cause of death and disability in my country. 70% of stroke patients suffer from physical disabilities of varying degrees. Patients with upper limb disabilities, espe...

AI Technical Summary

Problems solved by technology

Patients with upper limb disabilities, especially those with hand disabilities, can affect their normal life more, because daily activities, including dressing, eating, drinking, etc., must be completed by hands, so hand rehabilitation is also particularly important. Since the 1960s , developed a series of mechanical rehabilitation hands that can be worn on the patient's hand, including motor-driven, cable-driven, etc., but they are all rigid bodies, and the stiffness is greater than that of finger joints. When the mechanical bending angle exceeds When the bending angle of the finger joints can bear, this mechanical rehabilitation hand will oppress and restrain the fingers, causing pain to the patient. Therefore, this mechanical rehabilitation hand is very dangerous; and for different patients , the bending angles that the fingers can bear vary greatly, so this kind of manipulator cannot be widely popularized, and the adjustment is also very inconvenient; its cost and price are too high, and ordinary consumers cannot afford it at all; mechanical Generally heavy, so it is not convenient to carry, limiting the patient's range of motion

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