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

Volume

1

fYear

1999

fDate

1999

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 (f_t) prescribed by the user. If the force falls outside of the region: 0.99f _tf<1.01f_t, the device indents (f<f_t) or retracts (f>f_t) proportionally, based on the relative difference between f and f_t

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;

fLanguage

English

Publisher

ieee

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

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802724

Filename

802724