| Paper#05 | |
MMVR17 |
Sergei Kurenov, Sukitti Punak, Jörg Peters, Constance Lee, and Juan Cendan, “Development and Initial Validation of a Virtual Reality Haptically Augmented Surgical Knot-Tying Trainer for the Autosuture™ ENDOSTITCH™ Instrument” Proceedings of Medicine Meets Virtual Reality (MMVR) 17, pp. 145-147, 2009. January 19 – 22, 2009 |
| Paper#04 | |
 Full Text from IOS Press Books Online |
Sukitti Punak, Minho Kim, Ashish Myles, Juan Cendan, Sergei Kurenov and Jörg Peters, “Fatty Tissue in a Haptic Illustration Environment” Proceedings of Medicine Meets Virtual Reality (MMVR) 16, pp. 384-386, 2008. Abstract Modeling soft tissue for surgery simulation is a challenging task due to the complex way that the tissue can deform and interact with virtual surgical tools manipulated by user. One soft tissue that is ubiquitous but often not modeled, is fatty tissue. Here we present a novel fatty tissue model based on the mass-spring system on the Graphics Processing Unit (GPU) as part of our Toolkit for Illustration of Procedures in Surgery (TIPS). The user can interact with the fatty tissue in real time via a handheld haptic stylus that represents a virtual surgical tool in TIPS environment. The currently available interactions are palpation, grasp, and cut.
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| Paper#03 | |
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Sergei Kurenov, Sukitti Punak, Minho Kim, Jörg Peters and Juan Cendan “Simulation for Training with the Autosuture Endo Stitch Device” Surgical Innovation 13(4), pp. 1-5, 2006. Abstract The rapid development and deployment of novel laparoscopic instruments present the surgical educator and trainee with a significant challenge. Several useful instruments have been particularly difficult to teach the novice. We have developed a platform that allows the combination of the actual instrument handle with a virtual re-creation of the instrument tip. We chose the Autosuture Endo Stitch device as the prototypical instrument because it satisfies our subjective experience of "useful, but hard to teach." A software package was developed to support the re-creation of the needle and suture that accompany the device. The apparatus has haptic capabilities and collision detection so that the needle driver is "aware" of suture and instrument contact. The developed virtual environment allows re-creation of the necessary motion to simulate the instrument, the trainee can use the actual instrument handle, and the system can be altered to accommodate other instruments. |
| Paper#02 | |
  Full Text from The ACM Digital Library |
Sukitti Punak and Jörg Peters, “Localized Volume Preservation for Simulation and Animation,” Research Poster presented at SIGGRAPH 2006, abstract in Proceeding of SIGGRAPH 2006. Abstract Exact physical behavior of objects can enhance the realism of animations and reduce the animators work by suggesting a default behavior. As illustrated in the Figure above, preserving the volume under constraints can be an intriguing addition to the animator’s tool chest. Here we show how to keep some geometry of a deformable (two-manifold, water-tight) object fixed and have other parts of the object move without changing its volume. |
| Paper#01 | |
 Full Text from IOS Press Books Online |
Minho Kim, Sukitti Punak, Juan Cendan, Sergei Kurenov and Jörg Peters, “Exploiting Graphics Hardware for Haptic Authoring” Proceedings of Medicine Meets Virtual Reality (MMVR) 14, pp. 255-260, 2006. Abstract Real-time, plausible visual and haptic feedback of deformable objects without shape artifacts is important in surgical simulation environments to avoid distracting the user. We propose to leverage highly parallel stream processing, available on the newest generation graphics cards, to increase the level of both visual and haptic fidelity. We implemented this as part of the University of Florida's haptic surgical authoring kit. |