Measuring forces in liver cutting: new equipment and experimental results
We are interested in modeling the liver cutting process as accurately as possible by determining the mechanical properties experimentally and developing a predictive model that is self-consistent with the experimentally determined properties. In this paper, we present the newly developed hardware an...
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| Veröffentlicht in: | Annals of biomedical engineering 2003-12, Vol.31 (11), p.1372-1382 |
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| creator | Chanthasopeephan, Teeranoot Desai, Jaydev P Lau, Alan C W |
| description | We are interested in modeling the liver cutting process as accurately as possible by determining the mechanical properties experimentally and developing a predictive model that is self-consistent with the experimentally determined properties. In this paper, we present the newly developed hardware and software to characterize the mechanical response of pig liver during (ex vivo) cutting. We describe the custom-made cutting apparatus, the data acquisition system, and the characteristics of the cutting force versus displacement plot. The force-displacement behavior appears to reveal that the cutting process consists of a sequence of intermittent localized crack extension in the tissue on the macroscopic scale. The macroscopic cutting force-displacement curve shows repeating self-similar units of localized linear loading followed by sudden unloading. The sudden unloading coincides with observed onset of localized crack growth. This experimental data were used to determine the self-consistent local effective Young's modulus for the specimens, to be used in finite element models. Results from finite element analyses models reveal that the magnitude of the self-consistent local effective Young's modulus determined by plane-stress and plane-strain varies within close bounds. Finally, we have also observed that the local effective Young's modulus determined by plane stress and plane strain analysis decreases with increasing cutting speed. |
| doi_str_mv | 10.1114/1.1624601 |
| format | Article |
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In this paper, we present the newly developed hardware and software to characterize the mechanical response of pig liver during (ex vivo) cutting. We describe the custom-made cutting apparatus, the data acquisition system, and the characteristics of the cutting force versus displacement plot. The force-displacement behavior appears to reveal that the cutting process consists of a sequence of intermittent localized crack extension in the tissue on the macroscopic scale. The macroscopic cutting force-displacement curve shows repeating self-similar units of localized linear loading followed by sudden unloading. The sudden unloading coincides with observed onset of localized crack growth. This experimental data were used to determine the self-consistent local effective Young's modulus for the specimens, to be used in finite element models. Results from finite element analyses models reveal that the magnitude of the self-consistent local effective Young's modulus determined by plane-stress and plane-strain varies within close bounds. Finally, we have also observed that the local effective Young's modulus determined by plane stress and plane strain analysis decreases with increasing cutting speed.</description><identifier>ISSN: 0090-6964</identifier><identifier>EISSN: 1573-9686</identifier><identifier>DOI: 10.1114/1.1624601</identifier><identifier>PMID: 14758928</identifier><language>eng</language><publisher>United States: Springer Nature B.V</publisher><subject>Animals ; Computer Simulation ; Data acquisition ; Diagnostic Techniques, Surgical ; Dissection - instrumentation ; Equipment Design ; Liver - surgery ; Mechanical properties ; Microtomy - instrumentation ; Microtomy - methods ; Models, Theoretical ; Prediction models ; Strain ; Studies ; Swine ; Time Factors</subject><ispartof>Annals of biomedical engineering, 2003-12, Vol.31 (11), p.1372-1382</ispartof><rights>Biomedical Engineering Society 2003</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-91c9283adb0c5e7edf9712bd9bb058c0894734dfa0211befb45e03c374c099603</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14758928$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chanthasopeephan, Teeranoot</creatorcontrib><creatorcontrib>Desai, Jaydev P</creatorcontrib><creatorcontrib>Lau, Alan C W</creatorcontrib><title>Measuring forces in liver cutting: new equipment and experimental results</title><title>Annals of biomedical engineering</title><addtitle>Ann Biomed Eng</addtitle><description>We are interested in modeling the liver cutting process as accurately as possible by determining the mechanical properties experimentally and developing a predictive model that is self-consistent with the experimentally determined properties. In this paper, we present the newly developed hardware and software to characterize the mechanical response of pig liver during (ex vivo) cutting. We describe the custom-made cutting apparatus, the data acquisition system, and the characteristics of the cutting force versus displacement plot. The force-displacement behavior appears to reveal that the cutting process consists of a sequence of intermittent localized crack extension in the tissue on the macroscopic scale. The macroscopic cutting force-displacement curve shows repeating self-similar units of localized linear loading followed by sudden unloading. The sudden unloading coincides with observed onset of localized crack growth. This experimental data were used to determine the self-consistent local effective Young's modulus for the specimens, to be used in finite element models. Results from finite element analyses models reveal that the magnitude of the self-consistent local effective Young's modulus determined by plane-stress and plane-strain varies within close bounds. Finally, we have also observed that the local effective Young's modulus determined by plane stress and plane strain analysis decreases with increasing cutting speed.</description><subject>Animals</subject><subject>Computer Simulation</subject><subject>Data acquisition</subject><subject>Diagnostic Techniques, Surgical</subject><subject>Dissection - instrumentation</subject><subject>Equipment Design</subject><subject>Liver - surgery</subject><subject>Mechanical properties</subject><subject>Microtomy - instrumentation</subject><subject>Microtomy - methods</subject><subject>Models, Theoretical</subject><subject>Prediction models</subject><subject>Strain</subject><subject>Studies</subject><subject>Swine</subject><subject>Time Factors</subject><issn>0090-6964</issn><issn>1573-9686</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkU1Lw0AQhhdRbK0e_AOyeFA8pO5kv7LepPhRqHjRc0g2E0lJk3Q38ePfm9CA4EFPwwzPvMO8LyGnwOYAIK5hDioUisEemYLUPDAqUvtkyphhgTJKTMiR92vGACIuD8kEhJaRCaMpWT5h4jtXVG80r51FT4uKlsU7Omq7tu3nN7TCD4rbrmg2WLU0qTKKnw26YmiTkjr0Xdn6Y3KQJ6XHk7HOyOv93cviMVg9PywXt6vAcg1tYMD2h3mSpcxK1JjlRkOYZiZNmYwsi4zQXGR5wkKAFPNUSGS83xWWGaMYn5HLnW7j6m2Hvo03hbdYlkmFdefjiANoxU3Ykxd_khpkCNrof0EY3JKh6MHzX-C67lzVvxtrqTSXQg1nr3aQdbX3DvO46b1K3FcMLB7yiiEe8-rZs1GwSzeY_ZBjQPwbK1SOJQ</recordid><startdate>20031201</startdate><enddate>20031201</enddate><creator>Chanthasopeephan, Teeranoot</creator><creator>Desai, Jaydev P</creator><creator>Lau, Alan C W</creator><general>Springer Nature B.V</general><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>3V.</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>H8G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L6V</scope><scope>L7M</scope><scope>LK8</scope><scope>L~C</scope><scope>L~D</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7X8</scope></search><sort><creationdate>20031201</creationdate><title>Measuring forces in liver cutting: new equipment and experimental results</title><author>Chanthasopeephan, Teeranoot ; Desai, Jaydev P ; Lau, Alan C W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-91c9283adb0c5e7edf9712bd9bb058c0894734dfa0211befb45e03c374c099603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Animals</topic><topic>Computer Simulation</topic><topic>Data acquisition</topic><topic>Diagnostic Techniques, Surgical</topic><topic>Dissection - instrumentation</topic><topic>Equipment Design</topic><topic>Liver - surgery</topic><topic>Mechanical properties</topic><topic>Microtomy - instrumentation</topic><topic>Microtomy - methods</topic><topic>Models, Theoretical</topic><topic>Prediction models</topic><topic>Strain</topic><topic>Studies</topic><topic>Swine</topic><topic>Time Factors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chanthasopeephan, Teeranoot</creatorcontrib><creatorcontrib>Desai, Jaydev P</creatorcontrib><creatorcontrib>Lau, Alan C W</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ProQuest Biological Science Collection</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>MEDLINE - Academic</collection><jtitle>Annals of biomedical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chanthasopeephan, Teeranoot</au><au>Desai, Jaydev P</au><au>Lau, Alan C W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measuring forces in liver cutting: new equipment and experimental results</atitle><jtitle>Annals of biomedical engineering</jtitle><addtitle>Ann Biomed Eng</addtitle><date>2003-12-01</date><risdate>2003</risdate><volume>31</volume><issue>11</issue><spage>1372</spage><epage>1382</epage><pages>1372-1382</pages><issn>0090-6964</issn><eissn>1573-9686</eissn><abstract>We are interested in modeling the liver cutting process as accurately as possible by determining the mechanical properties experimentally and developing a predictive model that is self-consistent with the experimentally determined properties. In this paper, we present the newly developed hardware and software to characterize the mechanical response of pig liver during (ex vivo) cutting. We describe the custom-made cutting apparatus, the data acquisition system, and the characteristics of the cutting force versus displacement plot. The force-displacement behavior appears to reveal that the cutting process consists of a sequence of intermittent localized crack extension in the tissue on the macroscopic scale. The macroscopic cutting force-displacement curve shows repeating self-similar units of localized linear loading followed by sudden unloading. The sudden unloading coincides with observed onset of localized crack growth. This experimental data were used to determine the self-consistent local effective Young's modulus for the specimens, to be used in finite element models. Results from finite element analyses models reveal that the magnitude of the self-consistent local effective Young's modulus determined by plane-stress and plane-strain varies within close bounds. Finally, we have also observed that the local effective Young's modulus determined by plane stress and plane strain analysis decreases with increasing cutting speed.</abstract><cop>United States</cop><pub>Springer Nature B.V</pub><pmid>14758928</pmid><doi>10.1114/1.1624601</doi><tpages>11</tpages></addata></record> |
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| subjects | Animals Computer Simulation Data acquisition Diagnostic Techniques, Surgical Dissection - instrumentation Equipment Design Liver - surgery Mechanical properties Microtomy - instrumentation Microtomy - methods Models, Theoretical Prediction models Strain Studies Swine Time Factors |
| title | Measuring forces in liver cutting: new equipment and experimental results |
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