Principal considerations for the contemporary high-fidelity endovascular simulator design used in training and evaluation Benjamin A. Eslahpazir, MS,

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Presentation transcript:

Principal considerations for the contemporary high-fidelity endovascular simulator design used in training and evaluation Benjamin A. Eslahpazir, MS, Jerry Goldstone, MD, Matthew T. Allemang, MD, John C. Wang, MD, Vikram S. Kashyap, MD Journal of Vascular Surgery Volume 59, Issue 4, Pages 1154-1162 (April 2014) DOI: 10.1016/j.jvs.2013.11.074 Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 1 Commercially available endovascular simulators: VIST-Lab and VIST-C (reproduced with permission of Mentice AB); ANGIOMentor Ultimate and ANGIOMentor Slim (reproduced with permission of Simbionix USA Corporation); SimSuite Simantha (reproduced with permission of Medical Simulation Company); and CathLab VR (reproduced with permission of CAE Healthcare). Journal of Vascular Surgery 2014 59, 1154-1162DOI: (10.1016/j.jvs.2013.11.074) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 2 Representative concepts of device-simulator interaction. A, Schematic of guidewire and catheter guide assembly typical for endovascular haptic devices. Independent guides for each interventional device, when used simultaneously within a single haptic module, permit independent manipulation of each device without influencing the other. Δzc, Linear degree of freedom for catheter; Δzg, linear degree of freedom for guidewire; ρc, rotational degree of freedom for catheter; ρg, rotational degree of freedom for guidewire. B, Generalized haptic-catheter interface. In active haptics, the active cylinder can be shaft driven by a digitally controlled DC motor for input of added force. Journal of Vascular Surgery 2014 59, 1154-1162DOI: (10.1016/j.jvs.2013.11.074) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 3 Information exchange between physical and virtual reality. Force input from the surgeon drives physical catheter, guidewire, or sheath through the haptic device (a). Encoder-defined digital inputs from haptic device are delivered to the virtual physics model to compute a reactive collision force (b). Virtual collision force command is dispatched back to the haptic device (c). Passive or active haptic drive generates forces applied to the physical device for reconstructing the theoretical tactile response (d). Fi, Input force; Fv, virtual collision force; Sf, feedback signal; Fo, output force. Journal of Vascular Surgery 2014 59, 1154-1162DOI: (10.1016/j.jvs.2013.11.074) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 4 Simulator assembly for Mentice devices. A, Single linear module that includes three separate haptic carriages per module. Each carriage independently operates its own haptic unit (crosshatched fill). B, VIST-Lab containing two equivalent linear modules (crosshatched fill) typically concealed within a protective encasement. Journal of Vascular Surgery 2014 59, 1154-1162DOI: (10.1016/j.jvs.2013.11.074) Copyright © 2014 Society for Vascular Surgery Terms and Conditions