Development of prototype low-cost qtss™ wearable flexible more enviro-friendly pressure, shear, and friction sensors for dynamic prosthetic fit monitoringShow others and affiliations
2021 (English)In: Sensors, E-ISSN 1424-8220, Vol. 21, no 11, article id 3764Article in journal (Refereed) Published
Abstract [en]
There is a current healthcare need for improved prosthetic socket fit provision for the masses using low-cost and simple to manufacture sensors that can measure pressure, shear, and friction. There is also a need to address society’s increasing concerns regarding the environmental impact of electronics and IoT devices. Prototype thin, low-cost, and low-weight pressure, shear, and loss of friction sensors have been developed and assembled for trans-femoral amputees. These flexible and conformable sensors are simple to manufacture and utilize more enviro-friendly novel magnetite-based QTSS™ (Quantum Technology Supersensor™) quantum materials. They have undergone some initial tests on flat and curved surfaces in a pilot amputee trial, which are presented in this paper. These initial findings indicate that the prototype pressure sensor strip is capable of measuring pressure both on flat and curved socket surfaces in a pilot amputee trial. They have also demonstrated that the prototype shear sensor can indicate increasing shear forces, the resultant direction of the shear forces, and loss of friction/slippage events. Further testing, amputee trials, and ongoing optimization is continuing as part of the SocketSense project to assist prosthetic comfort and fit. © 2021 by the authors
Place, publisher, year, edition, pages
MDPI AG , 2021. Vol. 21, no 11, article id 3764
Keywords [en]
Composite materials, Flexible sensor, Loss of friction sensor, Pressure sensor, QTSS™, Quantum materials, Quantum Technology Supersensors™, Quantum tunnelling conduction, Shear sensor, Wearable sensor, Artificial limbs, Costs, Environmental impact, Friction, Magnetite, Manufacture, Shear flow, Curved surfaces, Low costs, Prosthetic fits, Prosthetic sockets, Quantum technologies, Shear force, Wearable sensors
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:ri:diva-54358DOI: 10.3390/s21113764Scopus ID: 2-s2.0-85106744334OAI: oai:DiVA.org:ri-54358DiVA, id: diva2:1568904
Note
Funding details: Horizon 2020 Framework Programme, H2020, 825429; Funding text 1: Funding: This work is part of th SocketSense Project that has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under the grant agreement No 825429.
2021-06-182021-06-182024-08-12Bibliographically approved