Paper Info
Title
Modeling of the Lap-Band® for Laparoscopic Adjustable Gastric Banding Operation
Abstract
This paper presents a physics-based model of the Lap-bandreg (Inamed Health) system for simulation of laparoscopic gastric banding (LAGB) operation. The Lap-bandreg has different mechanical properties along the centerline due to different thickness and curvature which makes the task of simulating its dynamics in a stable manner within a multimodal virtual environment rather challenging. A hybrid modeling technique is adopted with a mass-spring model being used for the less stiff portion and a quasi-static articulated rigid link model for the stiffer and relatively more inextensible portion. To allow the trainee for interactive bimanual manipulation of the Lap-bandreg with two graspers, we propose an efficient method to compute exact constraint forces based on velocity constraint in the quasi- static articulated rigid link systems. The performance of the proposed method is compared with the penalty force approach. The virtual Lap-bandreg model has been implemented into a complete graphics-haptics-physics-based system with two PHANToM Omni devices (from Sensible Technologies) being used for real-time bimanual interaction with force feedback.
Year
DOI
Venue
2008
10.1109/HAPTICS.2008.4479988
HAPTICS
Keywords
DocType
ISBN
mechanical property,multimodal virtual environment,rigid link model,i.3.6 [computer graphics]: methodology and techniques-interaction techniques,physics-based model,quasi-static articulated rigid link model,complete graphics-haptics-physics-based system,interactive bimanual manipulation,virtual reality,i.6.3 [simulation and modeling]: applications,mass-spring model,dexterous manipulators,lap-band,lap-bandâ®,laparoscopic surgery,biomedical equipment,hybrid modeling technique,inamed health system,phantom omni devices,laparoscopic adjustable gastric banding operation,velocity constraint,i.3.7 [three-dimensional graphics and realism]: animation,virtual lap-bandreg model,gastric banding,real-time bimanual interaction,force feedback,different thickness,haptic interfaces,laparoscopic adjustable gastric banding,exact constraint,efficient method,haptics,modeling,different mechanical property,phantoms,surgery,graphics,constraint forces,graphics-haptics-physics-based system,virtual environment,real time,shape,interaction technique,computer graphics,medical simulation,computer graphic
Conference
978-1-4244-2005-6
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Woojin Ahn12010.02
D. B. Jones200.34
Doo Yong Lee325234.35
Suvranu De421934.31