Sonomyographic Control of Fiber-Optically Sensorized Prosthetic Fingers for Graded Force Actuation

Sonomyographic Control of Fiber Optically Sensorized Prosthetic Fingers
for Graded Force Actuation
Intelligent Fiber Optic Systems CorporationIFOSCalle del MundoSanta ClaraCAwww ifos com
PROJECT SUMMARY ABSTRACTMAXIMUMLINESIn this Phase I SBIR applicationIFOS and George Mason UniversityGMUpropose an innovative control
system leveraging on two emerging technologiesultrasonic imaging based readout of muscle activity in the
forearmsonomyographyand fiber optically sensorized prosthetic fingersThe proposed solution will enable
fine control of force application as measured by digit specific forearm muscles to support greater freedom of
prosthetic finger movement beyond conventional reliance upon libraries of known gripsReal timefiber opticbased force measurements at the prosthetic finger will ensure that proper actuation force is applied via
feedback to the actuation controllerIFOS and GMU have already demonstrated the feasibility of the two
distinct and innovative technologies and now seek to demonstrate their fusion and optimization for prosthetic
applicationsThe proposed innovation is designed to be commercially viable with considerable impact on the
field of advancedlife like prosthetic replacementIt addresses several current impediments to their widespread adoptionincluding known grips limitationscostsensor functionalitysense of touchand prosthetictissue interface comfort and connectivity Project NarrativeIntelligent Fiber Optic Systems Corporationandapos s optically sensorizedgradedforce actuating prosthetic finger will provide multi modal sensing and feedback while
improving upon existing productsandaposcostcomfortand functionalityThe IFOS prosthetic finger
using innovative sonomyographic muscle readout for actuation commands is aimed at assisting
upper limb amputees regain critical grasping and manipulation functionalityenabling them to
move beyond known grips libraries