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Puncture forces of solid organ surfaces

Carter, F.J. and frank, t g and Davies, Penny and Cuschieri, A. (2000) Puncture forces of solid organ surfaces. Surgical Endoscopy, 14 (9). pp. 783-786. ISSN 1432-2218

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Abstract

In this experimental study, we measured the force needed to puncture the liver (low elastin) and the spleen (high elastin). The surface displacement preceding puncture was also measured. These data are relevant to an understanding of surgical technique and are essential to the development of electronic surgical simulators. Controlled puncture experiments were performed on intact organs harvested from pigs and sheep, as well as on their surface capsules following removal and suspension at zero strain and at three increasing levels of prestrain. The biomechanical data were compared with information obtained from histological studies. The spleen has a higher puncture force than the liver and suffers greater displacement before puncture (p < 0.05). Prestrain decreases displacement before puncture (p < 0.05) but has no effect on puncture force. The higher puncture force and displacement of spleen, as compared with liver, is probably due to its higher elastin content.

Item type: Article
ID code: 34538
Keywords: puncture forces, surgery, surgical simulators, Mathematics
Subjects: Science > Mathematics
Department: Faculty of Science > Mathematics and Statistics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 10 Nov 2011 12:01
    Last modified: 04 Oct 2012 13:58
    URI: http://strathprints.strath.ac.uk/id/eprint/34538

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