Investigation of Polymer Thick-film Piezoresistors for Medical Wrist Rehabilitation and Artificial Knee Load Sensors
Readily-available and low-cost commercial polymer-based composite materials, such as standard epoxy-fibreglass printed circuit board (PCB) substrates and resin-carbon thick-film piezoresistors, were evaluated as a solution for medical force sensors, such as a wrist rehabilitation device and an implantable wireless artificial knee force sensor. We show that such materials have high sensitivity, and sufficient short-term stability – provided careful mechanical design and materials selection are made - to allow fabrication of low-cost, robust sensors, with low processing temperatures compatible with electronics integration. Example load- sensing applications are a multi-axis wrist rehabilitation device and a knee prosthesis.
Keywords: Couches épaisses ; Thick-film technology ; PTF ; Couches épaisses polymères ; Polymer thick films ; Résistances résine-carbone ; Resin-carbon resistors ; Capteurs piézorésistifs ; Piezoresistive sensors ; Capteurs de force ; Force sensors ; Circuits imprimés organiques ; Organic printed circuit boards ; PCB ; Dérive ; Drift ; Réhabilitation ; Rehabilitation ; Genou ; Knee
Record created on 2015-01-05, modified on 2016-08-09