Back to Search
Start Over
An Inductive Sensing System to Measure In-Socket Residual Limb Displacements for People Using Lower-Limb Prostheses
- Source :
- Sensors, Vol 18, Iss 11, p 3840 (2018), Sensors (Basel, Switzerland), Sensors, Volume 18, Issue 11
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- The objective of this research was to assess the performance of an embedded sensing system designed to measure the distance between a prosthetic socket wall and residual limb. Low-profile inductive sensors were laminated into prosthetic sockets and flexible ferromagnetic targets were created from elastomeric liners with embedded iron particles for four participants with transtibial amputation. Using insights from sensor performance testing, a novel calibration procedure was developed to quickly and accurately calibrate the multiple embedded sensors. The sensing system was evaluated through laboratory tests in which participants wore sock combinations with three distinct thicknesses and conducted a series of activities including standing, walking, and sitting. When a thicker sock was worn, the limb typically moved further away from the socket and peak-to-peak displacements decreased. However, sensors did not measure equivalent distances or displacements for a given sock combination, which provided information regarding the fit of the socket and how a sock change intervention influenced socket fit. Monitoring of limb&ndash<br />socket displacements may serve as a valuable tool for researchers and clinicians to quantitatively assess socket fit.
- Subjects :
- 030506 rehabilitation
Computer science
Acoustics
0206 medical engineering
Measure (physics)
Artificial Limbs
Biosensing Techniques
Walking
residual limb displacements
02 engineering and technology
Prosthesis Design
lcsh:Chemical technology
Sitting
Biochemistry
Article
pistoning
Lower limb
Analytical Chemistry
03 medical and health sciences
Amputees
Transtibial amputation
Humans
lcsh:TP1-1185
Electrical and Electronic Engineering
prosthetic socket
Instrumentation
Tibia
Amputation Stumps
amputee
Prosthetic socket
equipment and supplies
socket fit
sensor design
020601 biomedical engineering
Atomic and Molecular Physics, and Optics
body regions
prosthetic socks
Joints
Stress, Mechanical
Prosthetic Socks
0305 other medical science
Sensing system
Residual limb
Subjects
Details
- ISSN :
- 14248220
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Sensors
- Accession number :
- edsair.doi.dedup.....74a9c073fe3625142a34acfe7455370b