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![Intestinal fluid flow velocity distribution and intestinal stress distribution of the CE under the condition of λ=0.1Pa·s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\lambda = 0.1{\text{ Pa}} \cdot {\text{s}}$$\end{document},γ=25mm\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\gamma = 25{\text{ mm}}$$\end{document}. a Flow velocity distribution and intestinal stress distribution of the round CE in the curved intestine. b Flow velocity distribution and intestinal stress distribution for the oval CE in the curved intestine](profile/Hongbo-Sun-12/publication/374555206/figure/fig4/AS:11431281208524381@1701416260946/Intestinal-fluid-flow-velocity-distribution-and-intestinal-stress-distribution-of-the-CE.png)
Intestinal fluid flow velocity distribution and intestinal stress distribution of the CE under the condition of λ=0.1Pa·s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\lambda = 0.1{\text{ Pa}} \cdot {\text{s}}$$\end{document},γ=25mm\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\gamma = 25{\text{ mm}}$$\end{document}. a Flow velocity distribution and intestinal stress distribution of the round CE in the curved intestine. b Flow velocity distribution and intestinal stress distribution for the oval CE in the curved intestine
Source publication
The capsule endoscope (CE) is widely used in the inspection of digestive tract diseases. Due to the tortuosity and complexity of the intestinal tract, the CE is difficult to move during the intestinal examination. Therefore, establishing a reliable intestinal model to analyze the stress on the CE is very important. A fluid–structure coupling model...
Context in source publication
Context 1
... Fig. 4, the results show that in the curved intestine, the maximum flow velocity near the round CE is 43.806 mm/s at 0.4 s, and the maximum flow velocity near the oval CE is 48.172 mm/s at 0.4 s. The maximum stress caused by the CE on the intestinal wall is 14.843 kPa (Round CE) and 15.963 kPa (Oval CE). Researchers experimentally test that ...Citations
The magnetically controlled capsule endoscope (MCCE) is a user-friendly device widely used in intestine examinations; however, maintaining its flexible movement through the intestine is still challenging. In this paper, three different permanent magnet structures within the MCCE are evaluated. The magnetic forces and torques on the different permanent magnet structures in three dimensions are analyzed through finite element simulations. Experimental comparison of pressure, controllable degrees of freedom, and speed of movement of the MCCE with different permanent magnet structures on the intestine under static and dynamic conditions. The results showed that the MCCE with a combined permanent magnet structure performed well in shortening the examination time and reducing the pressure on the intestine. These studies provide a reference for the design of permanent magnets.
