Abstract:
:This paper presents a fiber Bragg grating (FBG)-instrumented prosthetic silicone liner that provides cushioning for the residual limb and can successfully measure interface pressures inside prosthetic sockets of lower-limb amputees in a simple and practical means of sensing. The liner is made of two silicone layers between which 12 FBG sensors were embedded at locations of clinical interest. The sensors were then calibrated using a custom calibration platform that mimics a real-life situation. Afterward, a custom gait simulating machine was built to test the liner performance during an amputee's simulated gait. To validate the findings, the results were compared to those obtained by the commonly used F-socket mats. As the statistical findings reveal, both pressure mapping methods measured the interface pressure in a consistent way, with no significant difference (P-values ≥0.05). This pressure mapping technique in the form of a prosthetic liner will allow prosthetics professionals to quickly and accurately create an overall picture of the interface pressure distribution inside sockets in research and clinical settings, thereby improving the socket fit and amputee's satisfaction.
journal_name
J Biomed Optjournal_title
Journal of biomedical opticsauthors
Al-Fakih E,Arifin N,Pirouzi G,Mahamd Adikan FR,Shasmin HN,Abu Osman NAdoi
10.1117/1.JBO.22.8.087001subject
Has Abstractpub_date
2017-08-01 00:00:00pages
1-8issue
8eissn
1083-3668issn
1560-2281pii
JBO-170221Rjournal_volume
22pub_type
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