Computing stable contact interface for customized surgical jigs

Xiaoting Zhang, Ka Chun Chan, Charlie C.L. Wang, Kwok Chuen Wong, Shekhar Madhukar Kumta

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This 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.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Robotics and Automation (ICRA)
PublisherIEEE
Pages6160-6166
Number of pages7
ISBN (Electronic)978-1-4799-6923-4
DOIs
Publication statusPublished - 2 Jul 2015
Event2015 IEEE International Conference on Robotics and Automation, ICRA 2015 - Seattle, United States
Duration: 26 May 201530 May 2015

Publication series

NameIEEE International Conference on Robotics and Automation. Proceedings
PublisherIEEE
ISSN (Print)1050-4729

Conference

Conference2015 IEEE International Conference on Robotics and Automation, ICRA 2015
Country/TerritoryUnited States
CitySeattle
Period26/05/1530/05/15

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