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Non-Invasive, Temporally Discrete Feedback of Object Contact and Release Improves Grasp Control of Closed-Loop Myoelectric Transradial Prostheses
Umeå universitet, Medicinska fakulteten, Institutionen för integrativ medicinsk biologi (IMB), Fysiologi.
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2016 (engelsk)Inngår i: IEEE transactions on neural systems and rehabilitation engineering, ISSN 1534-4320, E-ISSN 1558-0210, Vol. 24, nr 12, s. 1314-1322Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Human grasping and manipulation control critically depends on tactile feedback. Without this feedback, the ability for fine control of a prosthesis is limited in upper limb amputees. Although various approaches have been investigated in the past, at present there is no commercially available device able to restore tactile feedback in upper limb amputees. Based on the Discrete Event-driven Sensory feedback Control (DESC) policy we present a device able to deliver short-lasting vibrotactile feedback to transradial amputees using commercially available myoelectric hands. The device (DESC-glove) comprises sensorized thimbles to be placed on the prosthesis digits, a battery-powered electronic board, and vibrating units embedded in an arm-cuff being transiently activated when the prosthesis makes and breaks contact with objects. The consequences of using the DESC-glove were evaluated in a longitudinal study. Five transradial amputees were equipped with the device for onemonth at home. Through a simple test proposed here for the first time-the virtual eggs test-we demonstrate the effectiveness of the device for prosthetic control in daily life conditions. In the future the device could be easily exploited as an add-on to complement myoelectric prostheses or even embedded in prosthetic sockets to enhance their control by upper limb amputees.

sted, utgiver, år, opplag, sider
2016. Vol. 24, nr 12, s. 1314-1322
Emneord [en]
Haptic interface, sensory substitution, upper limb prosthetics, virtual eggs test, wearable technology
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-130466DOI: 10.1109/TNSRE.2015.2500586ISI: 000390559600005PubMedID: 26584497Scopus ID: 2-s2.0-84973534490OAI: oai:DiVA.org:umu-130466DiVA, id: diva2:1068028
Tilgjengelig fra: 2017-01-24 Laget: 2017-01-20 Sist oppdatert: 2025-02-10bibliografisk kontrollert

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