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Updated: May 24, 2026

Experimental Methods to Study Human Postural Control
Published on: September 11, 2019
Use of a linear motion stroke potentiometer as a high precision sensor for linear translation in a laparoscopic
Saurabh Dargar1, Ganesh Sankaranarayanan, Suvranu De
1Center for Modeling, Simulation and Imaging in Medicine (CeMSIM), Rensselaer Polytechnic Institute, Troy, New York, USA.
Abstract:
Virtual Basic Laparoscopic Skills Trainer (VBLaST) is a virtual reality trainer that replicates the Fundamentals of Laparoscopic Surgery (FLS) tasks for training in minimally invasive surgery. For the ligation loop task, we have developed a novel hardware interface using a linear motion stroke potentiometer to accurately sense the linear translation of the ligation loop and a mechanism to attach the tool interface to a PHANToM Omni for force feedback. Testing shows that the interface provided a realistic feel and control of the loop similar to the endoloop device used in FLS ligation loop task.
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