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Effects of an inserted endoscope on chyme movement in small intestine – a theoretical model. (English) Zbl 1175.92031
Summary: The flow of chyme is induced by a progressive wave of area contraction along the length of the intestinal wall under long wavelength approximation. It is found that the chyme movement is significantly influenced due to the presence of the endoscope. The pressure drop assumes lower values for higher values of the endoscope radius for small flow rates, but the property reverses with increasing flow rates. The friction forces at the intestinal wall and the endoscope possesses a character similar to the pressure drop for any given set of parameters. The friction force at the intestinal wall is found much higher than at the endoscope.

92C50 Medical applications (general)
92C35 Physiological flow
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