Title :
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
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;
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.1999.804016
