This research presents an experimental study evaluating stomach suturing using a precurved nickel–titanium (NiTi) guidewire for an endoscopic minimally invasive obesity treatment. Precise path planning is critical for accurate and effective suturing. A position measurement system utilizing a hand-held magnetic sensor was used to measure the shape of a precurved guidewire and to determine the radius of curvature before and after suturing. Ex vivo stomach suturing experiments using four different guidewire tip designs varying the radius of curvature and bevel angles were conducted. The changes in radius of curvature and suturing force during suturing were measured. A model was developed to predict the guidewire radius of curvature based on the measured suturing force. Results show that a small bevel angle and a large radius of curvature reduce the suturing force and the combination of small bevel angle and small radius of curvature can maintain the shape of guidewire for accurate suturing.
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April 2015
Research-Article
Study of Insertion Force and Deformation for Suturing With Precurved NiTi Guidewire Available to Purchase
Yancheng Wang,
Yancheng Wang
State Key Lab of Fluid Power Transmission
and Control,
Department of Mechanical Engineering,
e-mail: yanchwang@zju.edu.cn
and Control,
Department of Mechanical Engineering,
Zhejiang University
,Hangzhou 310027
, China
e-mail: yanchwang@zju.edu.cn
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Roland K. Chen,
Roland K. Chen
Mem. ASME
Mechanical Engineering,
Ann Arbor, MI 48109
e-mail: krchen@umich.edu
Mechanical Engineering,
University of Michigan
,1043E HH Dow, 2300 Hayward St.
,Ann Arbor, MI 48109
e-mail: krchen@umich.edu
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Bruce L. Tai,
Bruce L. Tai
Mem. ASME
Mechanical Engineering,
Ann Arbor, MI 48109
e-mail: krchen@umich.edu
Mechanical Engineering,
University of Michigan
,1043A HH Dow, 2300 Hayward St.
,Ann Arbor, MI 48109
e-mail: krchen@umich.edu
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Kai Xu,
Kai Xu
UM-SJTU Joint Institute,
e-mail: k.xu@sjtu.edu.cn
Shanghai Jiao Tong University
,Shanghai 200240
, China
e-mail: k.xu@sjtu.edu.cn
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Albert J. Shih
Albert J. Shih
Fellow ASME
Mechanical Engineering
and Biomedical Engineering,
Ann Arbor, MI 48109
e-mail: shiha@umich.edu
Mechanical Engineering
and Biomedical Engineering,
University of Michigan
,3001E EECS, 2350 Hayward St.
,Ann Arbor, MI 48109
e-mail: shiha@umich.edu
Search for other works by this author on:
Yancheng Wang
State Key Lab of Fluid Power Transmission
and Control,
Department of Mechanical Engineering,
e-mail: yanchwang@zju.edu.cn
and Control,
Department of Mechanical Engineering,
Zhejiang University
,Hangzhou 310027
, China
e-mail: yanchwang@zju.edu.cn
Roland K. Chen
Mem. ASME
Mechanical Engineering,
Ann Arbor, MI 48109
e-mail: krchen@umich.edu
Mechanical Engineering,
University of Michigan
,1043E HH Dow, 2300 Hayward St.
,Ann Arbor, MI 48109
e-mail: krchen@umich.edu
Bruce L. Tai
Mem. ASME
Mechanical Engineering,
Ann Arbor, MI 48109
e-mail: krchen@umich.edu
Mechanical Engineering,
University of Michigan
,1043A HH Dow, 2300 Hayward St.
,Ann Arbor, MI 48109
e-mail: krchen@umich.edu
Kai Xu
UM-SJTU Joint Institute,
e-mail: k.xu@sjtu.edu.cn
Shanghai Jiao Tong University
,Shanghai 200240
, China
e-mail: k.xu@sjtu.edu.cn
Albert J. Shih
Fellow ASME
Mechanical Engineering
and Biomedical Engineering,
Ann Arbor, MI 48109
e-mail: shiha@umich.edu
Mechanical Engineering
and Biomedical Engineering,
University of Michigan
,3001E EECS, 2350 Hayward St.
,Ann Arbor, MI 48109
e-mail: shiha@umich.edu
Manuscript received July 7, 2014; final manuscript received November 20, 2014; published online February 5, 2015. Assoc. Editor: Pasquale Vena.
J Biomech Eng. Apr 2015, 137(4): 041004 (7 pages)
Published Online: April 1, 2015
Article history
Received:
July 7, 2014
Revision Received:
November 20, 2014
Online:
February 5, 2015
Citation
Wang, Y., Chen, R. K., Tai, B. L., Xu, K., and Shih, A. J. (April 1, 2015). "Study of Insertion Force and Deformation for Suturing With Precurved NiTi Guidewire." ASME. J Biomech Eng. April 2015; 137(4): 041004. https://doi.org/10.1115/1.4029311
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