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Myoelectric control ability detecting and training method for hand-prosthesis with multiple fingers and multiple degrees of freedom

A technology of myoelectric control and training method, which is applied in prosthesis, medical science, artificial arm, etc., and can solve the problems of no myoelectric control ability detection training method and device, etc.

Inactive Publication Date: 2008-12-10
TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

At present, there are only myoelectric feedback training devices on the market for the installation of myoelectric upper limb prosthetic hands based on threshold control and proportional control, but there is no myoelectric control capability test for the installation of pattern recognition-based myoelectric control multi-finger multi-freedom prosthetic hands Training method and device

Method used

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  • Myoelectric control ability detecting and training method for hand-prosthesis with multiple fingers and multiple degrees of freedom
  • Myoelectric control ability detecting and training method for hand-prosthesis with multiple fingers and multiple degrees of freedom
  • Myoelectric control ability detecting and training method for hand-prosthesis with multiple fingers and multiple degrees of freedom

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Embodiment Construction

[0034] The method and device for detecting and training the ability of myoelectric control of the multi-finger multi-free artificial hand based on the pattern recognition myoelectric control include hardware and software.

[0035] figure 1 Among them, the hardware mainly consists of four source myoelectric electrodes, an A / D data acquisition card and a PC. The function of the active myoelectric electrode is to extract the EMG transmitted from the muscle contraction to the skin surface, amplify and filter it, and then convert it into a digital signal through the A / D data acquisition card and transmit it to the PC. The 4 active myoelectric electrodes were respectively fixed above the muscle bellies of extensor pollicis brevis, extensor digitorum, flexor digitorum superficiale and flexor carpi ulnaris with wrist guards. It should be noted that for amputees with short stumps, depending on the condition of the residual muscles, only 2 or 3 surface electrodes can be selected to be ...

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Abstract

The invention relates to a detecting and training method of EMG controllability which is used for installing a pattern-recognition-based artificial hand with EMG control and hyperdactylia multiple degrees of freedom. The technical proposal of the method comprises procedures as follows: a signal acquisition module is used for collecting the myoelectric signal data of the surface of a stump; a signal analysis module is used for carrying out preliminary analysis for the collected data to determine that the collected myoelectric signal data of the surface of the stump has separability and the feature value of the optimal separability; an off-line recognition module is used for performing network training and recognizing the data to be recognized to the collected myoelectric signal data of the surface of the stump to determine an optimum classifier, the options of the optimal feature values and the selection of specific parameters; and a sufferer can do control training and on-line training by using an on-line recognition module and a control training module according to the determined combination of the optimal classifier and the options of feature values.

Description

technical field [0001] The invention belongs to the field of myoelectric control ability detection method for prosthetic hand, in particular to a multi-finger multi-freedom prosthetic hand used for amputee myoelectric control ability detection and training to improve myoelectric control ability before installing multi-degree-of-freedom myoelectric prosthetic hand Testing training methods with myoelectric control. Background technique [0002] A prosthetic hand is an artificial hand made and assembled to restore the shape and function of the human hand to compensate for the defect caused by amputation. The prosthetic hand is an important upper limb prosthesis. Not only forearm amputee patients need to install a prosthetic hand to compensate for the missing hand function, even the upper limb prosthesis installed by the amputee with a broken upper arm or shoulder also needs to have a prosthetic hand as an end effector. According to the sampling statistics in 2006, there are 24...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/72A61F2/76A61F2/54
Inventor 王人成罗志增郑双喜蔡付文王爱明
Owner TSINGHUA UNIV
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