Cranioplasty is a procedure for skull reconstruction after removal of bone defects such as tumors. Recent approaches for cranioplasty involve the use of customized cranial implants (CCIs). A challenge in performing the cranioplasty with CCI is that the actual size/shape is unknown until the tumor is removed. Often the procedure is performed in two stages. After removing the cranial defect, the surgeon works with an implant manufacturer to develop a CCI using computer-aided design and manufacturing (CAD/CAM) techniques. The CCI attachment to the skull will then require a second surgery. We recently proposed a robot-assisted single-stage cranioplasty. For conventional, single-stage CCI, the CCIs are usually made in oversized profiles and require manual intraoperative modification by the surgeon. The challenge, however, is that for complex cases the surgeon may spend a long time reshaping the CCI. This paper presents the development of a 5-axis laser cutting machine that has the capability of automatically shaping CCI profiles during single-stage cranioplasty. Preliminary results indicate a superior fit with only mm size gaps between the implant and the remaining skull.
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ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 6–9, 2017
Cleveland, Ohio, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5811-0
PROCEEDINGS PAPER
Design and Development of 5-Axis Cranial Implant Laser Cutting System
Joshua Liu,
Joshua Liu
Johns Hopkins University, Baltimore, MD
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Jerry Fang,
Jerry Fang
Johns Hopkins University, Baltimore, MD
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Ryan J. Murphy,
Ryan J. Murphy
Johns Hopkins University, Laurel, MD
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Chad Gordon,
Chad Gordon
Johns Hopkins School of Medicine, Baltimore, MD
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Mehran Armand
Mehran Armand
Johns Hopkins University, Baltimore, MD
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Joshua Liu
Johns Hopkins University, Baltimore, MD
Jerry Fang
Johns Hopkins University, Baltimore, MD
Ryan J. Murphy
Johns Hopkins University, Laurel, MD
Chad Gordon
Johns Hopkins School of Medicine, Baltimore, MD
Mehran Armand
Johns Hopkins University, Baltimore, MD
Paper No:
DETC2017-68064, V001T02A051; 7 pages
Published Online:
November 3, 2017
Citation
Liu, J, Fang, J, Murphy, RJ, Gordon, C, & Armand, M. "Design and Development of 5-Axis Cranial Implant Laser Cutting System." Proceedings of the ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 37th Computers and Information in Engineering Conference. Cleveland, Ohio, USA. August 6–9, 2017. V001T02A051. ASME. https://doi.org/10.1115/DETC2017-68064
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