Perception of stiffness in laparoscopy - the fulcrum effect.
Identifieur interne : 000C54 ( PubMed/Curation ); précédent : 000C53; suivant : 000C55Perception of stiffness in laparoscopy - the fulcrum effect.
Auteurs : Ilana Nisky [Israël] ; Felix Huang ; Amit Milstein ; Carla M. Pugh ; Ferdinando A. Mussa-Ivaldi ; Amir KarnielSource :
- Studies in health technology and informatics [ 0926-9630 ] ; 2012.
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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.
PubMed: 22357009
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pubmed:22357009Le document en format XML
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<front><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>
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<Abstract><AbstractText>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.</AbstractText>
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<CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>Endoscopy. 1999 Jun;31(5):365-9</RefSource>
<PMID Version="1">10433045</PMID>
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<CommentsCorrections RefType="Cites"><RefSource>Endoscopy. 1998 Sep;30(7):617-20</RefSource>
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</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>J Urol. 1998 Jul;160(1):22-7</RefSource>
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<CommentsCorrections RefType="Cites"><RefSource>Am J Surg. 1993 Jan;165(1):9-14</RefSource>
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<CommentsCorrections RefType="Cites"><RefSource>J Neurophysiol. 2010 Jun;103(6):3017-26</RefSource>
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<CommentsCorrections RefType="Cites"><RefSource>Minim Invasive Ther Allied Technol. 2008;17(1):3-16</RefSource>
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<PMID Version="1">11573048</PMID>
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