A Da Vinci Virtual Reality Simulator With Continuum Tools for Robot-Assisted Open Spina Bifida Repair

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Izdano u:ProQuest Dissertations and Theses (2025)
Glavni autor: Nimal, Nillan
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ProQuest Dissertations & Theses
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045 2 |b d20250101  |b d20251231 
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100 1 |a Nimal, Nillan 
245 1 |a A Da Vinci Virtual Reality Simulator With Continuum Tools for Robot-Assisted Open Spina Bifida Repair 
260 |b ProQuest Dissertations & Theses  |c 2025 
513 |a Dissertation/Thesis 
520 3 |a Open Spina Bifida (OSB) is a congenital neural tube defect, and traditional open surgery poses significant risk to both mother and baby. The recent development of 2mm Da Vinci continuum tools provides a minimally invasive alternative, enabling robotic in-utero OSB repair through small uterine ports. However, the complex bending behavior of these continuum tools makes precise control challenging. Consequently, this work presents a high-fidelity Da Vinci OSB repair virtual reality simulator with continuum tools for surgeon training. The simulator integrates soft body physics for tissue deformation, a plugin for handling suture interactions, and haptic virtual fixtures to enhance spatial awareness. Evaluation experiments demonstrated virtual tool accuracy with end-effector trajectory errors of 2.07mm, 3.10mm, and 3.25mm for pure bending, figure-eight tracing, and helix tracing tasks, respectively. A user study with four expert surgeons supports the simulator’s feasibility, with positive feedback received on realism and training value. 
653 |a Engineering 
653 |a Robotics 
653 |a Computer science 
653 |a Mechanical engineering 
773 0 |t ProQuest Dissertations and Theses  |g (2025) 
786 0 |d ProQuest  |t ProQuest Dissertations & Theses Global 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3276840358/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3276840358/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch