Movement trajectories in laparoscopic tools

Author

Wolpert, S. ; Murray, W. Bosseau ; Gorman, Paul J. ; Bholat, Omar S.

Author_Institution

Penn State Univ.-Harrisburg, Middletown, PA, USA

Volume

2

fYear

1999

fDate

36434

Abstract

In this study, a system was developed to assess quality of movement, as applied to laparoscopic instruments. An instrument is fitted with a variable inductor as part of a Colpitts oscillator. Output frequency is demodulated, sampled, and processed using LabView. In initial studies, this system is used to evaluate velocity and positioning accuracy during insertion and retraction tasks. Data show no significant difference between dominant and non-dominant hands, but velocity for extraction was higher than that of insertion, and marked improvement was seen over a three-day period

Keywords

biomedical equipment; computerised instrumentation; medical computing; surgery; Colpitts oscillator; LabView; dominant hands; hands-on computerized system; insertion task; laparoscopic instruments; movement trajectories; nondominant hands; output frequency; positioning accuracy; quality of movement; retraction task; three-day period; variable inductor; velocity evaluation; Aluminum; Displays; Ergonomics; Frequency; Inductors; Laparoscopes; Minimally invasive surgery; Oscillators; Surgical instruments; Testing;

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.1999.804016

Filename

804016