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Stretchable Optomechanical Fiber Sensors for Pressure Determination in Compressive Medical Textiles
Author(s) -
Sandt Joseph D.,
Moudio Marie,
Clark J. Kenji,
Hardin James,
Argenti Christian,
Carty Matthew,
Lewis Jennifer A.,
Kolle Mathias
Publication year - 2018
Publication title -
advanced healthcare materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.288
H-Index - 90
eISSN - 2192-2659
pISSN - 2192-2640
DOI - 10.1002/adhm.201800293
Subject(s) - materials science , cladding (metalworking) , bandage , pressure sensor , wearable computer , optical fiber , elastomer , composite material , nanotechnology , biomedical engineering , acoustics , mechanical engineering , computer science , surgery , medicine , telecommunications , physics , engineering , embedded system
Medical textiles are widely used to exert pressure on human tissues during treatment of post‐surgical hematoma, burn‐related wounds, chronic venous ulceration, and other maladies. However, the inability to dynamically sense and adjust the applied pressure often leads to suboptimal pressure application, prolonging treatment or resulting in poor patient outcomes. Here, a simple strategy for measuring sub‐bandage pressure by integrating stretchable optomechanical fibers into elastic bandages is demonstrated. Specifically, these fibers possess an elastomeric photonic multilayer cladding that surrounds an extruded stretchable core filament. They can sustain repetitive strains of over 100%, and respond to deformation with a predictable and reversible color variation. Integrated into elastic textiles, which apply pressure as a function of their strain, these fibers can provide instantaneous and localized pressure feedback. These colorimetric fiber sensors are well suited for medical textiles, athletic apparel, and other smart wearable technologies, especially when repetitive, large deformations are required.