Study of the Behavior of a Bell-Shaped Colonic Self-Expandable NiTi Stent under Peristaltic Movements
Joint Authors
Herrera, Antonio
Puértolas, Sergio
Bajador, Eduardo
Puértolas, José A.
López, Enrique
Ibarz, Elena
Gracia, Luis
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-06
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Managing 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.
American Psychological Association (APA)
Puértolas, Sergio& Bajador, Eduardo& Puértolas, José A.& López, Enrique& Ibarz, Elena& Gracia, Luis…[et al.]. 2013. Study of the Behavior of a Bell-Shaped Colonic Self-Expandable NiTi Stent under Peristaltic Movements. BioMed Research International،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1004124
Modern Language Association (MLA)
Puértolas, Sergio…[et al.]. Study of the Behavior of a Bell-Shaped Colonic Self-Expandable NiTi Stent under Peristaltic Movements. BioMed Research International No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1004124
American Medical Association (AMA)
Puértolas, Sergio& Bajador, Eduardo& Puértolas, José A.& López, Enrique& Ibarz, Elena& Gracia, Luis…[et al.]. Study of the Behavior of a Bell-Shaped Colonic Self-Expandable NiTi Stent under Peristaltic Movements. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1004124
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1004124