Intelligent myoelectric prosthetic hand device

Abstract

The invention discloses an intelligent myoelectric prosthetic hand device. The device comprises a palm component, an arm component, a waist hanging battery, and a myoelectric signal induction bracelet. The myoelectric signal induction bracelet comprises a myoelectric electrode, a myoelectric signal acquisition module, and a bluetooth module. A control chip is provided with a motor driving module,a bluetooth module, and a signal processing module. The control chip also comprises a buffer circuit, a pre-amplification circuit, a filter circuit, a rear-level amplification circuit, and an analog-digital conversion circuit. The intelligent myoelectric prosthetic hand device is simple in structure, convenient in use, low in cost, and light in weight. The device can complete high-precision control on five fingers and a wrist joint, and the prosthetic hand can be comfortably worn and used for relatively long time, and meanwhile the prosthetic hand can complete different operation, multi-freedom-degree natural control of the myoelectric prosthetic hand is realized. The myoelectric prosthetic hand is nimble in movement, and mental burden of a user is reduced.

Description

technical field [0001] The invention belongs to the field of intelligent handicapping aids, in particular to an intelligent myoelectric prosthetic hand device. Background technique [0002] At present, an important problem in the field of prosthetic hand research is to design a multi-freedom prosthetic hand that satisfies light weight, small size, large output force, and flexible movement. The research on the driving mode of intelligent prosthetic hands is mainly to accurately reproduce various movements of the hand through complex mechanical structures such as gear sets. The advantages of this method are high precision and rich movements, but at the same time, the disadvantages are high failure rate, heavy weight, and high cost. Among them, the two disadvantages of heavy weight and high cost are especially difficult for ordinary prosthetic hand users to accept. . [0003] The other direction is to manipulate the motion of the finger joints through the motor-driven pull wi...

AI Technical Summary

Problems solved by technology

The switch of "mode" is realized by "contracting" a pair of muscles at the same time or adding a switch, which makes the use of myoelectric prosthesis very difficult. This myoelectric prosthesis control method cannot directly realize the control of myoelectric prosthesis, causing muscle The clumsy movement of the electric prosthesis increases the mental burden of the user of the myoelectric prosthesis

The error of the acquisition equipment of the myoelectric information source is large, so that the prosthesis cannot be recognized and the corresponding action cannot be completed

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