Perception of Stiffness in Laparoscopy – the Fulcrum Effect
Identifieur interne : 001A84 ( Pmc/Corpus ); précédent : 001A83; suivant : 001A85Perception of Stiffness in Laparoscopy – the Fulcrum Effect
Auteurs : Ilana Nisky ; Felix Huang ; Amit Milstein ; Carla M. Pugh ; Ferdinando A. Mussa-Ivaldi ; Amir KarnielSource :
- Studies in health technology and informatics [ 0926-9630 ] ; 2012.
Abstract
We explored how the perception of stiffness can be distorted in Minimally Invasive Surgery. We combined a mechanical simulator with a haptic device, and implemented linear springs at the tip of the simulated laparoscopic device. To explore the influence of mechanical advantage on perception, we set different values of the ratio between internal and external length of the tool. We found that a nonsymmetrical ratio causes bias in the perceived stiffness when novice tangential probing is compared to radial probing. In contrast, haptic experts did not show similar perceptual bias.
Url:
PubMed: 22357009
PubMed Central: 4102265
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