Comparing the mechanical properties of a self‐expandable metallic stent for colorectal obstruction: Proposed measurement method of axial force using a new measurement machine
Objectives Colorectal stenting is widely performed using self‐expandable metallic stents (SEMSs), but the mechanical properties have not been evaluated. Therefore, we conducted an in vitro study to evaluate the mechanical properties of colorectal SEMSs. Methods Eighteen individual types and sizes of...
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| Veröffentlicht in: | Digestive endoscopy 2021-01, Vol.33 (1), p.170-178 |
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| container_title | Digestive endoscopy |
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| creator | Sasaki, Takashi Ishibashi, Rei Yoshida, Shuntaro Fujisawa, Toshio Shinagawa, Hiroki Gon, Chimyon Nakai, Yousuke Sasahira, Naoki Saida, Yoshihisa Isayama, Hiroyuki |
| description | Objectives
Colorectal stenting is widely performed using self‐expandable metallic stents (SEMSs), but the mechanical properties have not been evaluated. Therefore, we conducted an in vitro study to evaluate the mechanical properties of colorectal SEMSs.
Methods
Eighteen individual types and sizes of uncovered SEMSs were evaluated for their mechanical properties. Radial force was measured using a measurement machine. Axial force (AF) was measured by two methods: a conventional manual method and a new method using a measurement machine. The correlation of these two methods was evaluated. We also proposed an “AF zero border” that was defined as the angle at which the torque force disappeared.
Results
Radial force versus diameter curves and AF versus angle curves were influenced by the structure and the size of each stent. There was excellent correlation of AFs measured by the new and conventional manual method (y = 21.434x, R = 0.881, P |
| doi_str_mv | 10.1111/den.13671 |
| format | Article |
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Colorectal stenting is widely performed using self‐expandable metallic stents (SEMSs), but the mechanical properties have not been evaluated. Therefore, we conducted an in vitro study to evaluate the mechanical properties of colorectal SEMSs.
Methods
Eighteen individual types and sizes of uncovered SEMSs were evaluated for their mechanical properties. Radial force was measured using a measurement machine. Axial force (AF) was measured by two methods: a conventional manual method and a new method using a measurement machine. The correlation of these two methods was evaluated. We also proposed an “AF zero border” that was defined as the angle at which the torque force disappeared.
Results
Radial force versus diameter curves and AF versus angle curves were influenced by the structure and the size of each stent. There was excellent correlation of AFs measured by the new and conventional manual method (y = 21.434x, R = 0.881, P < 0.0001). Colorectal SEMSs could be categorized into five subgroups according to the mechanical properties. Most hook‐wired SEMSs had the AF of zero border.
Conclusions
This is the first report to evaluate the mechanical properties of colorectal SEMSs, and these data may provide useful information for the clinical use and development of colorectal SEMS. Furthermore, the new measurement machine might standardize the measuring method of AF.</description><identifier>ISSN: 0915-5635</identifier><identifier>EISSN: 1443-1661</identifier><identifier>DOI: 10.1111/den.13671</identifier><identifier>PMID: 32196766</identifier><language>eng</language><publisher>Australia</publisher><subject>axial force ; colorectal obstruction ; mechanical property ; radial force ; self‐expandable metallic stent</subject><ispartof>Digestive endoscopy, 2021-01, Vol.33 (1), p.170-178</ispartof><rights>2020 Japan Gastroenterological Endoscopy Society</rights><rights>2020 Japan Gastroenterological Endoscopy Society.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4151-725805ea291c3040a6083915013198bdbf854779666ec1764040855d4c2d45c33</citedby><cites>FETCH-LOGICAL-c4151-725805ea291c3040a6083915013198bdbf854779666ec1764040855d4c2d45c33</cites><orcidid>0000-0001-7109-9835 ; 0000-0001-7411-1385 ; 0000-0002-9437-9132</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fden.13671$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fden.13671$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32196766$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sasaki, Takashi</creatorcontrib><creatorcontrib>Ishibashi, Rei</creatorcontrib><creatorcontrib>Yoshida, Shuntaro</creatorcontrib><creatorcontrib>Fujisawa, Toshio</creatorcontrib><creatorcontrib>Shinagawa, Hiroki</creatorcontrib><creatorcontrib>Gon, Chimyon</creatorcontrib><creatorcontrib>Nakai, Yousuke</creatorcontrib><creatorcontrib>Sasahira, Naoki</creatorcontrib><creatorcontrib>Saida, Yoshihisa</creatorcontrib><creatorcontrib>Isayama, Hiroyuki</creatorcontrib><title>Comparing the mechanical properties of a self‐expandable metallic stent for colorectal obstruction: Proposed measurement method of axial force using a new measurement machine</title><title>Digestive endoscopy</title><addtitle>Dig Endosc</addtitle><description>Objectives
Colorectal stenting is widely performed using self‐expandable metallic stents (SEMSs), but the mechanical properties have not been evaluated. Therefore, we conducted an in vitro study to evaluate the mechanical properties of colorectal SEMSs.
Methods
Eighteen individual types and sizes of uncovered SEMSs were evaluated for their mechanical properties. Radial force was measured using a measurement machine. Axial force (AF) was measured by two methods: a conventional manual method and a new method using a measurement machine. The correlation of these two methods was evaluated. We also proposed an “AF zero border” that was defined as the angle at which the torque force disappeared.
Results
Radial force versus diameter curves and AF versus angle curves were influenced by the structure and the size of each stent. There was excellent correlation of AFs measured by the new and conventional manual method (y = 21.434x, R = 0.881, P < 0.0001). Colorectal SEMSs could be categorized into five subgroups according to the mechanical properties. Most hook‐wired SEMSs had the AF of zero border.
Conclusions
This is the first report to evaluate the mechanical properties of colorectal SEMSs, and these data may provide useful information for the clinical use and development of colorectal SEMS. Furthermore, the new measurement machine might standardize the measuring method of AF.</description><subject>axial force</subject><subject>colorectal obstruction</subject><subject>mechanical property</subject><subject>radial force</subject><subject>self‐expandable metallic stent</subject><issn>0915-5635</issn><issn>1443-1661</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kc1u1DAUhS0EaoehC16g8hIWaX3jnyTdoWn5kSrooqwjx7lhjBw7tRO13fEIPArPxJPg6ZRKLPDGkvWdT9Y5hLwGdgL5nPboT4CrCp6RFQjBC1AKnpMVa0AWUnF5SF6m9J0xKBshDsghL6FRlVIr8msTxklH67_ReYt0RLPV3hrt6BTDhHG2mGgYqKYJ3fD7x0-8m7Tvded28Kyds4amGf1MhxCpCS5ENPmdhi7NcTGzDf6MXmVZSNjnjE5LxHEXyPlt6B_sdzYnssAgXdLuM5p6vP2X1mZrPb4iLwbtEh493mvy9f3F9eZjcfnlw6fNu8vCCJBQVKWsmURdNmA4E0wrVvNcBwMOTd313VBLUVWNUgoNVEpkppayF6bshTScr8mbvTf3cLNgmtvRJoPOaY9hSW3Ja1ClErneNXm7R00MKUUc2inaUcf7Fli7G6jNA7UPA2X2-FG7dCP2T-TfRTJwugdurcP7_5va84vPe-Uf7pSdsA</recordid><startdate>202101</startdate><enddate>202101</enddate><creator>Sasaki, Takashi</creator><creator>Ishibashi, Rei</creator><creator>Yoshida, Shuntaro</creator><creator>Fujisawa, Toshio</creator><creator>Shinagawa, Hiroki</creator><creator>Gon, Chimyon</creator><creator>Nakai, Yousuke</creator><creator>Sasahira, Naoki</creator><creator>Saida, Yoshihisa</creator><creator>Isayama, Hiroyuki</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-7109-9835</orcidid><orcidid>https://orcid.org/0000-0001-7411-1385</orcidid><orcidid>https://orcid.org/0000-0002-9437-9132</orcidid></search><sort><creationdate>202101</creationdate><title>Comparing the mechanical properties of a self‐expandable metallic stent for colorectal obstruction: Proposed measurement method of axial force using a new measurement machine</title><author>Sasaki, Takashi ; Ishibashi, Rei ; Yoshida, Shuntaro ; Fujisawa, Toshio ; Shinagawa, Hiroki ; Gon, Chimyon ; Nakai, Yousuke ; Sasahira, Naoki ; Saida, Yoshihisa ; Isayama, Hiroyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4151-725805ea291c3040a6083915013198bdbf854779666ec1764040855d4c2d45c33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>axial force</topic><topic>colorectal obstruction</topic><topic>mechanical property</topic><topic>radial force</topic><topic>self‐expandable metallic stent</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sasaki, Takashi</creatorcontrib><creatorcontrib>Ishibashi, Rei</creatorcontrib><creatorcontrib>Yoshida, Shuntaro</creatorcontrib><creatorcontrib>Fujisawa, Toshio</creatorcontrib><creatorcontrib>Shinagawa, Hiroki</creatorcontrib><creatorcontrib>Gon, Chimyon</creatorcontrib><creatorcontrib>Nakai, Yousuke</creatorcontrib><creatorcontrib>Sasahira, Naoki</creatorcontrib><creatorcontrib>Saida, Yoshihisa</creatorcontrib><creatorcontrib>Isayama, Hiroyuki</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Digestive endoscopy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sasaki, Takashi</au><au>Ishibashi, Rei</au><au>Yoshida, Shuntaro</au><au>Fujisawa, Toshio</au><au>Shinagawa, Hiroki</au><au>Gon, Chimyon</au><au>Nakai, Yousuke</au><au>Sasahira, Naoki</au><au>Saida, Yoshihisa</au><au>Isayama, Hiroyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparing the mechanical properties of a self‐expandable metallic stent for colorectal obstruction: Proposed measurement method of axial force using a new measurement machine</atitle><jtitle>Digestive endoscopy</jtitle><addtitle>Dig Endosc</addtitle><date>2021-01</date><risdate>2021</risdate><volume>33</volume><issue>1</issue><spage>170</spage><epage>178</epage><pages>170-178</pages><issn>0915-5635</issn><eissn>1443-1661</eissn><abstract>Objectives
Colorectal stenting is widely performed using self‐expandable metallic stents (SEMSs), but the mechanical properties have not been evaluated. Therefore, we conducted an in vitro study to evaluate the mechanical properties of colorectal SEMSs.
Methods
Eighteen individual types and sizes of uncovered SEMSs were evaluated for their mechanical properties. Radial force was measured using a measurement machine. Axial force (AF) was measured by two methods: a conventional manual method and a new method using a measurement machine. The correlation of these two methods was evaluated. We also proposed an “AF zero border” that was defined as the angle at which the torque force disappeared.
Results
Radial force versus diameter curves and AF versus angle curves were influenced by the structure and the size of each stent. There was excellent correlation of AFs measured by the new and conventional manual method (y = 21.434x, R = 0.881, P < 0.0001). Colorectal SEMSs could be categorized into five subgroups according to the mechanical properties. Most hook‐wired SEMSs had the AF of zero border.
Conclusions
This is the first report to evaluate the mechanical properties of colorectal SEMSs, and these data may provide useful information for the clinical use and development of colorectal SEMS. Furthermore, the new measurement machine might standardize the measuring method of AF.</abstract><cop>Australia</cop><pmid>32196766</pmid><doi>10.1111/den.13671</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-7109-9835</orcidid><orcidid>https://orcid.org/0000-0001-7411-1385</orcidid><orcidid>https://orcid.org/0000-0002-9437-9132</orcidid></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | axial force colorectal obstruction mechanical property radial force self‐expandable metallic stent |
| title | Comparing the mechanical properties of a self‐expandable metallic stent for colorectal obstruction: Proposed measurement method of axial force using a new measurement machine |
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