Smartfit
The smartfit lower limb prosthesis sensor system - comfortable, stable, and sustainable
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We aim to achieve comfortable, stable, and sustainable lower limb prostheses for all users.
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We are working on a multi-sensor system to be used to assure optimal fitting.
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We explore the use of Soft Robotics for a smartfit design that adjusts after demand.
Current Research Questions
- What are the factors and situations resulting in remaining limb-socket movements hindering performance or cause discomfort and injuries?
- What is the amount of socket movement during different activities at different places in the socket?
- How do different suspension systems affect socket movements, comfort and task performance?
- Can we predict prosthesis performance with mock-testing?
About Smartfit
Experimental setup
Multi-sensor system
- Camera on transparent sockets
- Rotation force sensor
- Axial force sensor
- Pressure sensor in socket
Mock testing
User testing
Socket liner movements during walking
Tracing of 3 points during 40 sec walking (yellow) and 4 specific gait cycles
Publications
- Modalsli, Tan, Bakke, Eikevåg, Kohtala, Steinert, Aasland, Roeleveld. Prosthetic socket rotation stability - A mock limb study on different suspension systems. Gait and Posture 90 (S1), pp 154-155, 2021
- Modalsli. Lower Limb Transtibial Prosthetic Socket Transversal Rotation Resistance – Comparison of Five Different Suspension Systems in a Mock Limb’s. Master thesis, NTNU 2021.
- Bakke and Tan. Development of a Proof-of-Concept Testing Rig for Lower-Limb Prostheses. Master thesis NTNU 2021
- Luiten, C. Master thesis, University Groningen, 2022