{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Show Me The Evidence","title":"From Physics-Based Simulation to Surgical Robots| Show Me The Evidence E8- Dr Dwight Meglan","html":"","width":"100%","height":180,"duration":3684,"description":"Show Me the Evidence, Episode 8\nGuest: Dr Dwight Meglan Topic: Physics-Based Simulation, Surgical Robotics and Why Simulators Still Don't Measure What Matters\n\nEpisode Summary\nIn this episode, Professor Tony Gallagher is joined by Dr Dwight Meglan, the engineer who developed one of the first physics-based virtual reality simulators for endovascular procedures in the late 1990s, and who has spent the last two decades building surgical robots. Together they trace 30 years of simulation-based training and ask why so little has changed: simulators are still not verified against real-world physics, the field still measures process rather than skill, and device manufacturers, not educators, still set the agenda. The conversation ranges from haptics and instrumented torquers to Likert scales, credentialing committees, telesurgery risk, and why autonomous surgical robots are a regulatory and financial impossibility rather than a technical one. It closes with the evidence for Proficiency-Based Progression (PBP) and the leadership needed to adopt it.\n\nKey Topics Covered\n1. Building the first physics-based VR simulators | 0:00\nMeeting at Medicine Meets Virtual Reality in the late 1990s\nReal-time physics of tool and tissue interaction, fluoroscopy and haptic feedback\nWhy the goal was to replicate reality, not design a user experience\nPhysics tests to verify simulator correctness still do not exist, 25 years on\n2. Who really drives simulation: the device manufacturers | 2:24\nManufacturers pay for simulation, so manufacturers shape it\nTraining to use the device versus training to perform the procedure\nSimulators in exhibition booths: marketing tools first, training tools second\n3. Haptics and the sensory threshold problem | 3:55\nThe instrumented torquer: measuring what cardiologists actually feel\nJust noticeable difference thresholds vary between clinicians\nStill no published datasets on the forces a cardiologist feels during catheterisation\nClinicians praising the haptics on...","thumbnail_url":"https://img.transistorcdn.com/JPxx16guuIWtjNqUkS-VeCJVeP1R-gkQQ7xD4SsyqqM/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9lZGMy/MjkyM2UxYTkzZmM5/ZjVkMmI4MzAzOTM0/YTIzYi5wbmc.webp","thumbnail_width":300,"thumbnail_height":300}