Title :
A device for viscoelastic assessment of the residual limb bulk soft tissue response to load
Author :
Silver-Thorn, M.B. ; Tonuk, E.
Author_Institution :
Dept. of Biomed. Eng., Marquette Univ., Milwaukee, WI, USA
Abstract :
An extant tissue tester designed for rate-controlled indentation of the bulk soft tissues of lower extremity residual limbs was modified to include force feedback (proportional control) and enable creep testing. This device employs a digital linear actuator and a load cell that measures the reaction force resulting from tissue indentation. The current force value, f, is compared to the target force (ft) prescribed by the user. If the force falls outside of the region: 0.99f tf<1.01ft, the device indents (f<ft ) or retracts (f>ft) proportionally, based on the relative difference between f and ft
Keywords :
artificial limbs; biomedical equipment; biomedical measurement; biorheology; creep testing; force feedback; indentation; viscoelasticity; biorheological tissue properties; digital linear actuator; load cell; medical instrumentation; proportional control; reaction force; residual limb bulk soft tissue load response; target force; tissue indentation; viscoelastic assessment device; Biological tissues; Creep; Elasticity; Extremities; Force feedback; Force measurement; Hydraulic actuators; Proportional control; Testing; Viscosity;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802724
