Biomimetic finger control by filtering of distributed forelimb pressures

D J Curcie; J A Flint; W Craelius

doi:10.1109/7333.918278

Biomimetic finger control by filtering of distributed forelimb pressures

IEEE Trans Neural Syst Rehabil Eng. 2001 Mar;9(1):69-75. doi: 10.1109/7333.918278.

Authors

D J Curcie¹, J A Flint, W Craelius

Affiliation

¹ Orthotic and Prosthetic Laboratory, Department of Biomedical Engineering, Rutgers University, Piscatway, NJ 08854, USA.

PMID: 11482365
DOI: 10.1109/7333.918278

Abstract

A linear filter was developed for decoding finger commands from volitional pressures distributed within the residual forelimb. Filter parameters were based on dynamic pressures recorded from the residual limb within its socket, during specific finger commands. A matrix of signal features was derived from eight-dimensional (8-D) pressure vectors, and its pseudoinverse comprised the filter parameters. Results with amputees showed that the filter could discriminate specific finger flexion commands, suggesting that pressure vector decoding (PVD) can provide them with biomimetic finger control.

Publication types

Clinical Trial
Research Support, U.S. Gov't, P.H.S.

MeSH terms

Adult
Aged
Amputees / rehabilitation*
Arm / physiopathology*
Biomechanical Phenomena
Computer Systems*
Equipment Design
Fingers / physiopathology*
Humans
Male
Muscle, Skeletal / physiopathology
Prostheses and Implants
Reproducibility of Results
Robotics
Tendons / physiopathology
Volition / physiology