In-Vivo and In-Situ Compressive Properties of Porcine Abdominal Soft Tissues

Brown, J. D. and Rosen, J. and Kim, Y. S. and Chang, L. and Sinanan, M. and Hannaford, B. (2003) In-Vivo and In-Situ Compressive Properties of Porcine Abdominal Soft Tissues. Studies in Health Technology and Informatics - Medicine Meets Virtual Reality, 94. pp. 26-32.

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Accurate biomechanical characteristics of tissues are essential for developing realistic virtual reality surgical simulators utilizing haptic feedback. Surgical simulation technology has progressed rapidly but lacks a comprehensive database of soft tissue mechanical properties with which to incorporate. Simulators are often designed purely based on what "feels right; "quantitative empirical data are lacking. A motorized endoscopic grasper was used to test abdominal porcine tissues in-vivo and in-situ with cyclic and static compressive loadings. An exponential constitutive equation was fit to the resulting stress-strain curves, and the coefficients were compared for various conditions. Stress relaxation for liver and small bowel were also examined. Differences between successive squeezes and between in-vivo and in-situ conditions were found.

Item Type: Article
Subjects: C Surgical Robots > C Surgical Robots(General)
C Surgical Robots > CC Preventing Tissue Damage
Divisions: Department of Electrical Engineering
Depositing User: Nava Aghdasi
Date Deposited: 12 Aug 2015 20:15
Last Modified: 12 Aug 2015 20:15

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