Biomechanics of small bowel motility
A biomechanical model and results of numerical simulation of the propagation of electromechanical waves of deformation along the small bowel are presented. The organ is modelled as a soft orthotropic cylindrical biological shell reinforced by orthogonally interwoven smooth muscle elements, embedded...
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| Veröffentlicht in: | Medical engineering & physics 1994-09, Vol.16 (5), p.406-415 |
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| creator | Miftakhov, R.N. Wingate, D.L. |
| description | A biomechanical model and results of numerical simulation of the propagation of electromechanical waves of deformation along the small bowel are presented. The organ is modelled as a soft orthotropic cylindrical biological shell reinforced by orthogonally interwoven smooth muscle elements, embedded in a connective tissue network. The dynamic reaction starts as a response to the propagation of a depolarization wave along the smooth muscle layers. The muscle layers contract independently but in a coordinated way with the generation of active forces. The mechanical properties of the wall are assumed to be nonlinear. Deformations of the bioshell are finite. The governing system of equations is obtained and solved numerically. The finite-difference method of the second order accuracy over the time and space variables was used. The dynamics of strain distribution in the biological shell and shape changes are analysed. |
| doi_str_mv | 10.1016/1350-4533(90)90007-U |
| format | Article |
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The organ is modelled as a soft orthotropic cylindrical biological shell reinforced by orthogonally interwoven smooth muscle elements, embedded in a connective tissue network. The dynamic reaction starts as a response to the propagation of a depolarization wave along the smooth muscle layers. The muscle layers contract independently but in a coordinated way with the generation of active forces. The mechanical properties of the wall are assumed to be nonlinear. Deformations of the bioshell are finite. The governing system of equations is obtained and solved numerically. The finite-difference method of the second order accuracy over the time and space variables was used. The dynamics of strain distribution in the biological shell and shape changes are analysed.</description><subject>Biological and medical sciences</subject><subject>Biomechanical Phenomena</subject><subject>Electric Stimulation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gastrointestinal Motility - physiology</subject><subject>Humans</subject><subject>Intestine, Small - physiology</subject><subject>Intestine. Mesentery</subject><subject>mathematical model</subject><subject>Models, Biological</subject><subject>motility</subject><subject>Muscle Contraction - physiology</subject><subject>Muscle, Smooth - physiology</subject><subject>small bowel</subject><subject>Vertebrates: digestive system</subject><issn>1350-4533</issn><issn>1873-4030</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtKAzEUhoMotVbfQKGLIroYzT2TjaDFGxTc2HXIZM5gZC41mSp9e2fs2KWuzoH_O4efD6FTgq8IJvKaMIETLhi70PhSY4xVstxDY5IqlnDM8H63_yKH6CjG947hXLIRGiktqFR6jGZ3vqnAvdnauzhtimmsbFlOs-YLymnVtL707eYYHRS2jHAyzAlaPty_zp-Sxcvj8_x2kThOVJso66jmAlJKibZQCKcohUwJy9McYycy4kjOJBfSYgXYKpcWRCgORMuUA5ug8-3fVWg-1hBbU_nooCxtDc06GtVVllSLf0EiU01T2YN8C7rQxBigMKvgKxs2hmDTWzS9ItMrMhqbH4tm2Z2dDf_XWQX57mjQ1uWzIbfR2bIItnY-7jBOFRdCdtjNFoNO2qeHYKLzUDvIfQDXmrzxf_f4Bk2qi5I</recordid><startdate>19940901</startdate><enddate>19940901</enddate><creator>Miftakhov, R.N.</creator><creator>Wingate, D.L.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>19940901</creationdate><title>Biomechanics of small bowel motility</title><author>Miftakhov, R.N. ; Wingate, D.L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c417t-7ac2945e82219aef5c722eb75a48d00c5b1c1d36456a07e0a7c8f1574e19684e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Biological and medical sciences</topic><topic>Biomechanical Phenomena</topic><topic>Electric Stimulation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gastrointestinal Motility - physiology</topic><topic>Humans</topic><topic>Intestine, Small - physiology</topic><topic>Intestine. Mesentery</topic><topic>mathematical model</topic><topic>Models, Biological</topic><topic>motility</topic><topic>Muscle Contraction - physiology</topic><topic>Muscle, Smooth - physiology</topic><topic>small bowel</topic><topic>Vertebrates: digestive system</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Miftakhov, R.N.</creatorcontrib><creatorcontrib>Wingate, D.L.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Medical engineering & physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Miftakhov, R.N.</au><au>Wingate, D.L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biomechanics of small bowel motility</atitle><jtitle>Medical engineering & physics</jtitle><addtitle>Med Eng Phys</addtitle><date>1994-09-01</date><risdate>1994</risdate><volume>16</volume><issue>5</issue><spage>406</spage><epage>415</epage><pages>406-415</pages><issn>1350-4533</issn><eissn>1873-4030</eissn><abstract>A biomechanical model and results of numerical simulation of the propagation of electromechanical waves of deformation along the small bowel are presented. 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| ispartof | Medical engineering & physics, 1994-09, Vol.16 (5), p.406-415 |
| issn | 1350-4533 1873-4030 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Biological and medical sciences Biomechanical Phenomena Electric Stimulation Fundamental and applied biological sciences. Psychology Gastrointestinal Motility - physiology Humans Intestine, Small - physiology Intestine. Mesentery mathematical model Models, Biological motility Muscle Contraction - physiology Muscle, Smooth - physiology small bowel Vertebrates: digestive system |
| title | Biomechanics of small bowel motility |
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