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A Sensor-Based Decision Support System for Transfemoral Socket Rectification
Article

Development of Prototype Low-Cost QTSS™ Wearable Flexible More Enviro-Friendly Pressure, Shear, and Friction Sensors for Dynamic Prosthetic Fit Monitoring

1
RISE Research Institutes of Sweden, Argongatan 30, 431 53 Mölndal, Sweden
2
Lusstech, NETpark, Thomas Wright Way, Sedgefield TS21 3FD, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Roger Jagdish Narayan
Sensors 2021, 21(11), 3764; https://doi.org/10.3390/s21113764
Received: 6 April 2021 / Revised: 12 May 2021 / Accepted: 18 May 2021 / Published: 28 May 2021
(This article belongs to the Special Issue Increasing Prosthetic Comfort through Sensor Technology)
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. View Full-Text
Keywords: Quantum Technology Supersensors™; QTSS™; quantum materials; quantum tunnelling conduction; composite materials; pressure sensor; shear sensor; loss of friction sensor; flexible sensor; wearable sensor Quantum Technology Supersensors™; QTSS™; quantum materials; quantum tunnelling conduction; composite materials; pressure sensor; shear sensor; loss of friction sensor; flexible sensor; wearable sensor
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MDPI and ACS Style

Dejke, V.; Eng, M.P.; Brinkfeldt, K.; Charnley, J.; Lussey, D.; Lussey, C. Development of Prototype Low-Cost QTSS™ Wearable Flexible More Enviro-Friendly Pressure, Shear, and Friction Sensors for Dynamic Prosthetic Fit Monitoring. Sensors 2021, 21, 3764. https://doi.org/10.3390/s21113764

AMA Style

Dejke V, Eng MP, Brinkfeldt K, Charnley J, Lussey D, Lussey C. Development of Prototype Low-Cost QTSS™ Wearable Flexible More Enviro-Friendly Pressure, Shear, and Friction Sensors for Dynamic Prosthetic Fit Monitoring. Sensors. 2021; 21(11):3764. https://doi.org/10.3390/s21113764

Chicago/Turabian Style

Dejke, Valter, Mattias P. Eng, Klas Brinkfeldt, Josephine Charnley, David Lussey, and Chris Lussey. 2021. "Development of Prototype Low-Cost QTSS™ Wearable Flexible More Enviro-Friendly Pressure, Shear, and Friction Sensors for Dynamic Prosthetic Fit Monitoring" Sensors 21, no. 11: 3764. https://doi.org/10.3390/s21113764

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