Wearable action-assist device, and method and program for...

A - Human Necessities – 61 – H

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Details

A61H 3/00 (2006.01) A61B 5/0488 (2006.01) A61F 2/72 (2006.01) B25J 5/00 (2006.01)

Patent

CA 2559856

A wearable action-assist device which assists or executes an action of a wearer by substituting for the wearer is provided with an action-assist tool 2 having an actuator 201 which gives power to the wearer 1, a biosignal sensor 221 which detects a wearer's biosignal, a biosignal processing unit 3 which acquires from a biosignal "a" detected by the biosignal sensor a nerve transfer signal "b" for operating a wearer's muscular line skeletal system, and a myoelectricity signal "c" accompanied with a wearer's muscular line activity, an optional control unit 4 which generates a command signal "d" for causing the actuator 201 to generate power according to the wearer's intention using the nerve transfer signal "b" and the myoelectricity signal "c" acquired by the biosignal processing unit 3, and a driving current generating unit 5 which generates a current according to the nerve transfer signal b and a current according to the myoelectricity signal "c", respectively, based on the command signal "d" generated by the optional control unit 4, and supplies the currents to the actuator 201.

Cette invention se rapporte à un dispositif portatif d'assistance aux mouvements, servant à assister dans ces mouvements la personne qui le porte, appelée utilisateur, ou à effectuer un mouvement pour l'utilisateur (1) et comprenant à cet effet un instrument portatif (2) d'assistance aux mouvements, comportant un actuateur (201) destiné à conférer à l'utilisateur une force mécanique, un capteur de biosignal (221) servant à détecter un biosignal de l'utilisateur (1), un processeur de biosignal (3) destiné à obtenir, à partir du biosignal (a) détecté par le capteur de biosignal, un signal neurotransmetteur (b) destiné à déplacer le système musculo-squelettique de l'utilisateur (1) et un signal de potentiel musculaire (c) généré lorsqu'une activité musculaire se produit, un moyen de commande volontaire (4) destiné à produire, en utilisant le signal neurotransmetteur (b) et le signal de potentiel musculaire (c) obtenus, un signal d'instruction (d) destiné à générer une force mécanique reflétant les intentions de l'utilisateur (1) dans l'actuateur (201), et un générateur de courant d'excitation (5) destiné à produire, en fonction du signal d'instruction (d), des courants correspondant au signal neurotransmetteur (b) et au signal de potentiel musculaire (c) respectivement et à appliquer ces signaux à l'actuateur (201).

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