Nonlinear Tissue Response Modeling for Physically Realistic Virtual Surgery Using PAFF

Authors:
Yi-Je Lim;Suvranu De
Affiliations:
Rensselaer Polytechnic Institute;Rensselaer Polytechnic Institute
Venue:
WHC '05 Proceedings of the First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
Year:
2005

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Physically realistic virtual surgery using the point-associated finite field (PAFF) approach

Presence: Teleoperators and Virtual Environments - Special issue: Virtual heritage

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Abstract

In this paper we present a novel physically realistic scheme based on the point-associated finite field approach (PAFF) for modeling the nonlinear behavior of soft biological tissues in real time during multimodal simulation of laparoscopic procedures using visual and haptic feedback. In this technique the response predicted by an underlying linear model is enhanced in the local neighborhood of the surgical tool-tip by a nonlinear model.