Open Source Sensor Interface for Soft Detectors in Surgical Simulators

Surgical simulation is an emerging area of research and development, making new developments especially hybrid simulators highly relevant. In this context, soft sensors enable low-cost position or force detection in haptically realistic synthetic tissue imitations to link the physical virtual components a patient phantom. To accelerate facilitate development such simulators, open-source sensor interface module optimized for use with carbon black silicone composite based presented. The can measure complex voltages impedances between multiple measurement channels at various frequencies. This enables up three-dimensional tool tracking conductive surgical instruments phantoms as well deformation relevant structures. Several application scenarios are Disruptive influences on minimized by evaluating signals discrete Fourier transform. Higher frequency signal coupling avoids contacting problems sensors, which often piezoresistive. Compensation functions favorable structures largely avoid influence parasitic capacitances, particularly prevalent electronics. universally applicable provides all necessary electronics, including firmware software subsequent processing computer. handy offers 17 measuring digital inputs outputs operated via USB. addition evaluability types simulation, electroimpedance tomography also supported, demonstrated examples.