000057732 001__ 57732
000057732 005__ 20170911124959.0
000057732 0247_ $$2doi$$a10.1155/2013/370582
000057732 0248_ $$2sideral$$a82351
000057732 037__ $$aART-2013-82351
000057732 041__ $$aeng
000057732 100__ $$0(orcid)0000-0002-3613-4209$$aPuértolas, S.$$uUniversidad de Zaragoza
000057732 245__ $$aStudy of the Behavior of a Bell-Shaped Colonic Self-Expandable NiTi Stent under Peristaltic Movements
000057732 260__ $$c2013
000057732 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057732 5203_ $$aManaging bowel obstruction produced by colon cancer requires an emergency intervention to patients usually in poor conditions, and it requires creating an intestinal stoma in most cases. Regardless of that the tumor may be resectable, a two-stage surgery is mandatory. To avoid these disadvantages, endoscopic placement of self-expanding stents has been introduced more than 10 years ago, as an alternative to relieve colonic obstruction. It can be used as a bridge to elective single-stage surgery avoiding a stoma or as a definitive palliative solution in patients with irresectable tumor or poor estimated survival. Stents must be capable of exerting an adequate radial pressure on the stenosed wall, keeping in mind that stent must not move or be crushed, guaranteeing an adequate lumen when affected by peristaltic waves. A finite element simulation of bell-shaped nitinol stent functionality has been done. Catheter introduction, releasing at position, and the effect of peristaltic wave were simulated. To check the reliability of the simulation, a clinical experimentation with porcine specimens was carried out. The stent presented a good deployment and flexibility. Stent behavior was excellent, expanding from the very narrow lumen corresponding to the maximum peristaltic pressure to the complete recovery of operative lumen when the pressure disappears.
000057732 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000057732 590__ $$a0.0$$b2013
000057732 591__ $$aMEDICINE, RESEARCH & EXPERIMENTAL
000057732 591__ $$aBIOTECHNOLOGY & APPLIED MICROBIOLOGY
000057732 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000057732 700__ $$0(orcid)0000-0002-1732-2941$$aBajador, E.$$uUniversidad de Zaragoza
000057732 700__ $$0(orcid)0000-0002-3125-5802$$aPuértolas, J.A.$$uUniversidad de Zaragoza
000057732 700__ $$0(orcid)0000-0003-2378-7187$$aLópez, E.$$uUniversidad de Zaragoza
000057732 700__ $$0(orcid)0000-0003-0785-4132$$aIbarz, E.$$uUniversidad de Zaragoza
000057732 700__ $$0(orcid)0000-0001-7944-9625$$aGracia, L.$$uUniversidad de Zaragoza
000057732 700__ $$0(orcid)0000-0002-8643-7558$$aHerrera, A.$$uUniversidad de Zaragoza
000057732 7102_ $$11004$$2830$$aUniversidad de Zaragoza$$bDepartamento de Cirugía, Ginecología y Obstetricia$$cTraumatología y Ortopedia
000057732 7102_ $$11007$$2610$$aUniversidad de Zaragoza$$bDepartamento de Medicina, Psiquiatría y Dermatología$$cMedicina
000057732 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDepartamento de Ingeniería de Diseño y Fabricación$$cExpresión Gráfica de la Ingeniería
000057732 7102_ $$15004$$2605$$aUniversidad de Zaragoza$$bDepartamento de Ingeniería Mecánica$$cMec. de Medios Contínuos y Teor. de Estructuras
000057732 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDepartamento de Ciencia y Tecnología de Materiales y Fluidos$$cCiencia de los Materiales e Ingeniería Metalúrgica
000057732 773__ $$g2013 (2013), 370582 [10 pp]$$pBioMed res. int.$$tBioMed Research International$$x2314-6133
000057732 8564_ $$s11316224$$uhttp://zaguan.unizar.es/record/57732/files/texto_completo.pdf$$yVersión publicada
000057732 8564_ $$s94393$$uhttp://zaguan.unizar.es/record/57732/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000057732 909CO $$ooai:zaguan.unizar.es:57732$$particulos$$pdriver
000057732 951__ $$a2017-09-11-12:21:28
000057732 980__ $$aARTICLE