Serveur d'exploration sur les dispositifs haptiques

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Perception of Stiffness in Laparoscopy – the Fulcrum Effect

Identifieur interne : 001E90 ( Ncbi/Merge ); précédent : 001E89; suivant : 001E91

Perception of Stiffness in Laparoscopy – the Fulcrum Effect

Auteurs : Ilana Nisky [Israël] ; Felix Huang [États-Unis] ; Amit Milstein [Israël] ; Carla M. Pugh [États-Unis] ; Ferdinando A. Mussa-Ivaldi [États-Unis] ; Amir Karniel [Israël]

Source :

RBID : PMC:4102265

English descriptors

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

Links toward previous steps (curation, corpus...)


Links to Exploration step

PMC:4102265

Le document en format XML

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<div type="abstract" xml:lang="en">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.</div>
</front>
</TEI>
</pubmed>
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