Computing stable contact interface for customized surgical jigs
Refereed conference paper presented and published in conference proceedings


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AbstractThis paper presents a framework to compute stable contact interfaces for automatically designing customized jigs used in bone surgeries. Given the surface model of a bone represented by polygonal meshes, we find out a small region on the surface to be used as the interface of a customized jig so that it can be stably fixed on the bone under a directional clamping force. The variation of directions on the clamping force is allowed in our formulation. Moreover, the surface region serves as the interface of stable contact must also be disassemblable so that the jig and the bone can be separated after removing the clamping force. The analysis of stable contact is formulated on a Gaussian map by the common regions of half-spaces according to the motion restrictions. A flooding algorithm is proposed to determine those disassemblable and stable contact interfaces on the surface of a bone, where the contact surfaces are later converted into the solid model of a jig to be fabricated by additive manufacturing. Experimental tests are taken to verify the stable contact between a bone and the jig generated by our approach.
All Author(s) ListXiaoting Zhang, Ka-Chun Chan, Charlie C.L. Wang, Kwok-Chuen Wong, Shekhar-Madhukar Kumta
Name of Conference2015 IEEE Conference on Robotics and Automation (ICRA 2015)
Start Date of Conference26/05/2015
End Date of Conference30/05/2015
Place of ConferenceSeattle
Country/Region of ConferenceUnited States of America
Proceedings Title2015 IEEE Conference on Robotics and Automation (ICRA)
Year2015
PublisherIEEE
Pages6160 - 6166
ISBN978-1-4799-6923-4
LanguagesEnglish-United States

Last updated on 2021-21-01 at 02:15