title: Pattern cutting and ligating loop simulation in Virtual Basic Laparoscopic Skill Trainer (VBLaST.
abstract: This paper presents the pattern cutting and ligating loop simulation in the Virtual Basic Laparoscopic Skill Trainer (VBLaST©). In the simulation, the gauze, tubular foam, and ligating loop thread are modeled by the mass-spring method and constraint projection for the inextensible characteristics. Discrete simulation states defined based on the tool-object interaction types are utilized to efficiently and accurately manages the physics simulation, collision processing, and haptic feedback in real-time. An automated scoring system provides quantitative measurement for evaluation of trainees' skills. The simulation results show advanced visual realism and real-time performances.
authors: Center for Modeling, Simulation and Imaging in Medicine, Rensselaer Polytechnic Institute, Troy, NY, USA.
authors: Woojin
authors: W
authors: Ahn
authors: Tansel
authors: T
authors: Halic
authors: Suvranu
authors: S
authors: De
mesh_terms: D003194:Computer-Assisted Instruction / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D010535:Laparoscopy / Q000193:education* / Q000295:instrumentation*; D008026:Ligation / Q000295:instrumentation; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D014584:User-Computer Interface