Expert subjective comparison of haptic models for bone–drill interaction

Abstract

Purpose A haptic algorithm to simulate the interaction between a surgical drill and bone using a constraint-based algorithm has been previously demonstrated. However, there has been no blinded study to determine if this algorithm is preferred by professionals who commonly use this type of system Methods Fourteen otologic surgeons were presented with a spring-damper model and a constraint-based model of drill-bone interaction rendered on a low-cost haptic device with only linear feedback. The participants were blinded as to what algorithm they were using. They then answered survey quesitons about their opinions of the models. Results The surgeons overwhelmingly prefered the constraint-based model. They generally prefered the constraint-based model in the individual questions as well. Conclusions Follow-up work can be done to fine-tune the parameters in the model, but this study shows that a sophisticated algorithm can make a significant difference even on a low-fidelity haptic device.

Patient‐specific Virtual Temporal Bone Simulation Based on Clinical Cone‐beam Computed Tomography

“…This can have most likely be explained by the haptic device responding and feeling different than the real-life otosurgical drill as also found in a previous study. 19 Regardless, the haptic experience is an important aspect of temporal bone surgical simulation and can be related to both the software programming and the capabilities of the haptic device itself. 20 Cheaper, commercially available haptic devices can provide less force feedback and have limited degrees of freedom compared with more expensive devices and therefore a less accurate translation of physical forces in the human-interface interaction.…”