Technical Brief

A Finite Element Method Simulation of the Interaction of Intestinal Tissue and Tissue Attachment Mechanism1

[+] Author and Article Information
Wanchuan Xie

Department of Mechanical and Materials Engineering,
University of Nebraska-Lincoln,
Lincoln, NE 68508
e-mail: xieche23@gmail.com

Benjamin S. Terry

Department of Mechanical and Materials Engineering,
University of Nebraska-Lincoln,
Lincoln, NE 68508
e-mail: bterry2@unl.com

DOI: 10.1115/1.4033846Manuscript received March 1, 2016; final manuscript received March 17, 2016; published online August 1, 2016. Editor: William Durfee.

J. Med. Devices 10(3), 030910 (Aug 01, 2016) (3 pages) Paper No: MED-16-1124; doi: 10.1115/1.4033846 History: Received March 01, 2016; Revised March 17, 2016

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Koulaouzidis, A. , Rondonotti, E. , and Karargyris, A. , 2013, “ Small-Bowel Capsule Endoscopy: A Ten-Point Contemporary Review,” World J. Gastroenterol., 19(24), pp. 3726–3746. [CrossRef] [PubMed]
Xie, W. , Kothari, V. , and Terry, B. S. , 2015, “ A Bio-Inspired Attachment Mechanism for Long-Term Adhesion to the Small Intestine,” Biomed. Microdevices, 17(4), pp. 1–9. [CrossRef] [PubMed]
Terry, B. S. , Lyle, A. B. , Schoen, J. A. , and Rentschler, M. E. , 2011, “ Preliminary Mechanical Characterization of the Small Bowel for In Vivo Robotic Mobility,” ASME J. Biomech. Eng., 133(9), p. 091010. [CrossRef]
Kim, J.-S. , Sung, I.-H. , Kim, Y.-T. , Kwon, E.-Y. , Kim, D.-E. , and Jang, Y. H. , 2006, “ Experimental Investigation of Frictional and Viscoelastic Properties of Intestine for Microendoscope Application,” Tribol. Lett., 22(2), pp. 143–149. [CrossRef]


Grahic Jump Location
Fig. 1

Two-dimensional deformation of tissue under 0.04 MPa and 0.02 MPa vacuum pressure: (a) 0.04 MPa and (b) 0.02 MPa

Grahic Jump Location
Fig. 2

Three-dimensional deformation of tissue under 0.04 MPa vacuum pressure: (a) stress plot and (b) strain plot

Grahic Jump Location
Fig. 3

(a) Three-dimensional simulation setup and (b) maximum Mises stress in 3D simulation appears in the wrinkles of tissue

Grahic Jump Location
Fig. 4

Material model test data fitting: (a) uniaxial data fitting and (b) biaxial data fitting



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