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Conf Proc IEEE Eng Med Biol Soc. 2011;2011:1121-4. doi: 10.1109/IEMBS.2011.6090262.

Haptic interface protocol for FEM-based deformable model and effects on fineness of force feedback and perceived hardness.

Author information

1
Graduate School of Engineering Science, Osaka University, Toyonaka 5608531, Japan. ykuroda@bpe.es.osaka-u.ac.jp

Abstract

The remote haptic collaboration system between operating and assistant surgeons causes both shift and step delays of force feedback, and then makes users feel coarse reaction forces and different hardness of the object. In this study, we propose a haptic interface protocol for finite-element-method based deformable objects, in order to achieve a high update rate of force calculation. The method exports the necessary information for calculation of reaction forces from the simulation loop to the haptic loop. The experimental results indicated that the proposed method improved the fineness of force feedback and subjective hardness significantly.

PMID:
22254511
DOI:
10.1109/IEMBS.2011.6090262
[Indexed for MEDLINE]

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