Feasibility of generating 90 Hz vibrations in remote implanted magnets

Abstract Limb amputation not only reduces the motor abilities of an individual, but also destroys afferent channels that convey essential sensory information to the brain. Significant efforts have been made in the area of upper limb prosthetics to restore sensory feedback, through the stimulation of...

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Autores principales:	Jordan Montero, Francesco Clemente, Christian Cipriani
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9c97456410ae46eeb88abcfce0815a3b
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spelling	oai:doaj.org-article:9c97456410ae46eeb88abcfce0815a3b2021-12-02T16:25:00ZFeasibility of generating 90 Hz vibrations in remote implanted magnets10.1038/s41598-021-94240-22045-2322https://doaj.org/article/9c97456410ae46eeb88abcfce0815a3b2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94240-2https://doaj.org/toc/2045-2322Abstract Limb amputation not only reduces the motor abilities of an individual, but also destroys afferent channels that convey essential sensory information to the brain. Significant efforts have been made in the area of upper limb prosthetics to restore sensory feedback, through the stimulation of residual sensory elements. Most of the past research focused on the replacement of tactile functions. On the other hand, the difficulties in eliciting proprioceptive sensations using either haptic or (neural) electrical stimulation, has limited researchers to rely on sensory substitution. Here we propose the myokinetic stimulation interface, that aims at restoring natural proprioceptive sensations by exploiting the so-called tendon illusion, elicited through the vibration of magnets implanted inside residual muscles. We present a prototype which exploits 12 electromagnetic coils to vibrate up to four magnets implanted in a forearm mockup. The results demonstrated that it is possible to generate highly directional and frequency-selective vibrations. The system proved capable of activating a single magnet, out of many. Hence, this interface constitutes a promising approach to restore naturally perceived proprioception after an amputation. Indeed, by implanting several magnets in independent muscles, it would be possible to restore proprioceptive sensations perceived as coming from single digits.Jordan MonteroFrancesco ClementeChristian CiprianiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jordan Montero Francesco Clemente Christian Cipriani Feasibility of generating 90 Hz vibrations in remote implanted magnets
description	Abstract Limb amputation not only reduces the motor abilities of an individual, but also destroys afferent channels that convey essential sensory information to the brain. Significant efforts have been made in the area of upper limb prosthetics to restore sensory feedback, through the stimulation of residual sensory elements. Most of the past research focused on the replacement of tactile functions. On the other hand, the difficulties in eliciting proprioceptive sensations using either haptic or (neural) electrical stimulation, has limited researchers to rely on sensory substitution. Here we propose the myokinetic stimulation interface, that aims at restoring natural proprioceptive sensations by exploiting the so-called tendon illusion, elicited through the vibration of magnets implanted inside residual muscles. We present a prototype which exploits 12 electromagnetic coils to vibrate up to four magnets implanted in a forearm mockup. The results demonstrated that it is possible to generate highly directional and frequency-selective vibrations. The system proved capable of activating a single magnet, out of many. Hence, this interface constitutes a promising approach to restore naturally perceived proprioception after an amputation. Indeed, by implanting several magnets in independent muscles, it would be possible to restore proprioceptive sensations perceived as coming from single digits.
format	article
author	Jordan Montero Francesco Clemente Christian Cipriani
author_facet	Jordan Montero Francesco Clemente Christian Cipriani
author_sort	Jordan Montero
title	Feasibility of generating 90 Hz vibrations in remote implanted magnets
title_short	Feasibility of generating 90 Hz vibrations in remote implanted magnets
title_full	Feasibility of generating 90 Hz vibrations in remote implanted magnets
title_fullStr	Feasibility of generating 90 Hz vibrations in remote implanted magnets
title_full_unstemmed	Feasibility of generating 90 Hz vibrations in remote implanted magnets
title_sort	feasibility of generating 90 hz vibrations in remote implanted magnets
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9c97456410ae46eeb88abcfce0815a3b
work_keys_str_mv	AT jordanmontero feasibilityofgenerating90hzvibrationsinremoteimplantedmagnets AT francescoclemente feasibilityofgenerating90hzvibrationsinremoteimplantedmagnets AT christiancipriani feasibilityofgenerating90hzvibrationsinremoteimplantedmagnets
_version_	1718384070935707648

Feasibility of generating 90 Hz vibrations in remote implanted magnets

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