Friction Behavior of Esophageal Mucosa Under Axial and Circumferential Extension
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There are serious friction damage problems that few studies have focused on when conveying endoscope to the lesion locations. In this paper, the friction behavior between endoscope and esophageal mucosa tissue which stretched in different directions was studied by using a UMT-II Micro-Tribometer. Results show that the friction coefficient and energy dissipation decreased with the increasing circumferential strain, and enhanced with the increasing axial strain. The difference in friction behaviors was related to the structural and mechanical anisotropy of the esophageal tissue. The tearing degree on the mucosal surface gradually increased with the increasing normal force. Lidocaine could effectively reduce the friction dissipation and damage. The results can provide the basic data for safety operation and damage control during endoscopy.
KeywordsEsophageal mucosa Friction behavior Axial extension Circumferential extension Lidocaine mucilage
This work was supported by National Natural Science Foundation of China (No. 51675447 and No. 51290291).
- 9.Wang, X., Meng, M.Q.H.: Study of frictional properties of the small intestine for design of active capsule endoscope// ieee/ras-embs international conference on biomedical robotics and biomechatronics. IEEE. 124–129: (1996)Google Scholar
- 11.Wang, X., Meng, M.Q.H., Chan, Y.: Physiological factors of the small intestine in design of active capsule endoscopy//Engineering in Medicine and Biology Society, 2005, IEEE-EMBS 2005, 27th Annual International Conference of the. IEEE. 2942–2945: (2006)Google Scholar
- 12.Wang, X., Meng, M.Q.H.: An experimental study of resistant properties of the small intestine for an active capsule endoscope, Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 224, 107–118: (2010)Google Scholar
- 16.Accoto, D., Stefanini, C., Phee, L., et al.: Measurements of the frictional properties of the gastrointestinal tract. World Tribol. Congr. 3, 7 (2001)Google Scholar
- 21.Gao, P., Yan, G., Wang, Z., et al.: A robotic endoscope based on minimally invasive locomotion and wireless techniques for human colon. Int J Med Robot Comput Assist Surg. 7, 256–267 (2011)Google Scholar
- 31.Fung, Y.: Biomechanics: mechanical properties of living tissues, 2 edn. Springer, New York (2013)Google Scholar
- 33.Stachowiak, G., Batchelor, A.W.. Engineering tribology. Butterworth Heinemann, Oxford (2013)Google Scholar
- 37.Moore, D.F.: The friction and lubrication of elastomers. Pergamon Press, Oxford (1972)Google Scholar
- 38.Wolfram, L.J.: Friction of skin. JSCC 34, 465 (1983)Google Scholar