Laparoscopic surgery is a Minimally Invasive Surgery (MIS) procedure which is performed in the abdominal cavity. In this paper, the spleen tissue and a laparoscopic surgical grasper were modeled using ABAQUS software to investigate the tool-tissue interaction, considering large deformations for the spleen tissue. The spleen tissue was modeled as a hyper-elastic material. The laparoscopic grasper includes three gripping jaws that always remain parallel. The sliding can occur between the gripping jaws and the spleen tissue. It was found that the relationship between the pinch forces and push forces keeps its linearity in different values of friction coefficient (0–0.3). The pushing force varies from 0 (N) in pinch force of 1 (N) and the frictionless situation to 6.125 (N) in pinch force of 6 (N) and the friction coefficient equal to 0.3. Changing the shape of jaws can increase the pushing force up to 100%. The results could help surgeons to predict the correlation between grasping conditions and applied forces for a safe grasping procedure in the laparoscopic operations.
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ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
July 12–14, 2010
Istanbul, Turkey
Conference Sponsors:
- International
ISBN:
978-0-7918-4918-7
PROCEEDINGS PAPER
Finite Element Modeling of Spleen Tissue to Analyze Its Interaction With a Laparoscopic Surgery Instrument Available to Purchase
Mojdeh Tirehdast,
Mojdeh Tirehdast
Sharif University of Technology; Tehran University of Medical Science, Tehran, Iran
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Alireza Mirbagheri,
Alireza Mirbagheri
Sharif Universityof Technology; Tehran University of Medical Science, Tehran, Iran
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Farzam Farahmand,
Farzam Farahmand
Sharif University of Technology; Tehran University of Medical Science, Tehran, Iran
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Mohsen Asghari
Mohsen Asghari
Sharif University of Technology, Tehran, Iran
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Mojdeh Tirehdast
Sharif University of Technology; Tehran University of Medical Science, Tehran, Iran
Alireza Mirbagheri
Sharif Universityof Technology; Tehran University of Medical Science, Tehran, Iran
Farzam Farahmand
Sharif University of Technology; Tehran University of Medical Science, Tehran, Iran
Mohsen Asghari
Sharif University of Technology, Tehran, Iran
Paper No:
ESDA2010-24546, pp. 103-107; 5 pages
Published Online:
December 28, 2010
Citation
Tirehdast, M, Mirbagheri, A, Farahmand, F, & Asghari, M. "Finite Element Modeling of Spleen Tissue to Analyze Its Interaction With a Laparoscopic Surgery Instrument." Proceedings of the ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 4. Istanbul, Turkey. July 12–14, 2010. pp. 103-107. ASME. https://doi.org/10.1115/ESDA2010-24546
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