Journal of Japan Society of Computer Aided Surgery
Online ISSN : 1884-5770
Print ISSN : 1344-9486
ISSN-L : 1344-9486
Modeling of Material Properties of Liver Including Viscoelasticity and Nonlinearity
Yo KobayashiJun OkamotoMasakatsu G. Fujie
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2006 Volume 7 Issue 4 Pages 559-565

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Abstract
This research aims to produce an intelligent surgical robot, incorporating the following three techniques, A: visual feedback B: force control C: organ-model base control. This research uses a robot model and a liver for the target object to evaluate organ-model base control. For the purpose of organ-model base control, three experiments were conducted to evaluate the physical properties of the liver for robot control. A dynamic viscoelastic test was then carried out to show the dynamic properties of the liver in the form of a differential equation. The nonlinearity of the liver was supported by the creep test. In addition, the liver model was validated using a constant strain rate test.
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