caa a22 4500 475779304 CHVBK 20180406123639.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/s004640000165 doi (NATIONALLICENCE)springer-10.1007/s004640000165 Puncture forces of solid organ surfaces [Elektronische Daten] [F. J. Carter, T. G. Frank, P. J. Davies, A. Cuschieri] Background: 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. Methods: 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. Results: 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. Conclusion: The higher puncture force and displacement of spleen, as compared with liver, is probably due to its higher elastin content. Springer-Verlag New York Inc., 2000 Key words: Liver — Puncture force — Spleen — Surgical technique nationallicence Carter F. J. Department of Surgery and Molecular Oncology, University of Dundee, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, Scotland, Scotland aut Frank T. G. Department of Surgery and Molecular Oncology, University of Dundee, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, Scotland, Scotland aut Davies P. J. Department of Mathematics, University of Strathclyde, Livingstone Tower, 26 Richmond Street, Glasgow G1 1XH, Scotland, Scotland aut Cuschieri A. Department of Surgery and Molecular Oncology, University of Dundee, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, Scotland, Scotland aut Surgical Endoscopy Springer-Verlag 14/9(2000-09-01), 783-786 0930-2794 14:9<783 2000 14 464 https://doi.org/10.1007/s004640000165 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s004640000165 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Carter F. J. Department of Surgery and Molecular Oncology, University of Dundee, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, Scotland, Scotland aut NATIONALLICENCE 700 1- Frank T. G. Department of Surgery and Molecular Oncology, University of Dundee, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, Scotland, Scotland aut NATIONALLICENCE 700 1- Davies P. J. Department of Mathematics, University of Strathclyde, Livingstone Tower, 26 Richmond Street, Glasgow G1 1XH, Scotland, Scotland aut NATIONALLICENCE 700 1- Cuschieri A. Department of Surgery and Molecular Oncology, University of Dundee, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, Scotland, Scotland aut NATIONALLICENCE 773 0- Surgical Endoscopy Springer-Verlag 14/9(2000-09-01), 783-786 0930-2794 14:9<783 2000 14 464 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer