A finite element model of the left atrium, incorporating detailed anatomical features and realistic material characteristics, was built to investigate the interaction of heart tissue and surgical instruments. This model was used to facilitate the design of an endoscopically deployable atrial retractor for use in minimally invasive, robotically assisted (MIRA) mitral valve repair. The left atrial geometry was imported directly from MRI data of an explanted porcine heart, and material properties were derived from experimental testing of cardiac tissues. Model accuracy was verified by comparing simulated cardiac wall deflections to those measured by MRI. Finite element analysis was shown to be an effective tool for analyzing instrument/tissue interactions and for designing surgical instruments.
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ASME 2007 2nd Frontiers in Biomedical Devices Conference
June 7–8, 2007
Irvine, California, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4266-5
PROCEEDINGS PAPER
Finite Element Modeling of the Left Atrium to Facilitate the Design of an Endoscopic Atrial Retractor
S. R. Jernigan,
S. R. Jernigan
North Carolina State University, Raleigh, NC
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G. D. Buckner,
G. D. Buckner
North Carolina State University, Raleigh, NC
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J. W. Eischen,
J. W. Eischen
North Carolina State University, Raleigh, NC
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D. R. Cormier
D. R. Cormier
North Carolina State University, Raleigh, NC
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S. R. Jernigan
North Carolina State University, Raleigh, NC
G. D. Buckner
North Carolina State University, Raleigh, NC
J. W. Eischen
North Carolina State University, Raleigh, NC
D. R. Cormier
North Carolina State University, Raleigh, NC
Paper No:
BioMed2007-38014, pp. 7-8; 2 pages
Published Online:
February 24, 2009
Citation
Jernigan, SR, Buckner, GD, Eischen, JW, & Cormier, DR. "Finite Element Modeling of the Left Atrium to Facilitate the Design of an Endoscopic Atrial Retractor." Proceedings of the ASME 2007 2nd Frontiers in Biomedical Devices Conference. ASME 2007 2nd Frontiers in Biomedical Devices. Irvine, California, USA. June 7–8, 2007. pp. 7-8. ASME. https://doi.org/10.1115/BioMed2007-38014
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