Interaction phenomena between a cuff of an artificial urinary sphincter and a urethral phantom.
artificial urinary sphincter
inflation tests
numerical analysis
occlusive pressure
urethral phantom
Journal
Artificial organs
ISSN: 1525-1594
Titre abrégé: Artif Organs
Pays: United States
ID NLM: 7802778
Informations de publication
Date de publication:
Sep 2019
Sep 2019
Historique:
received:
12
11
2018
revised:
25
01
2019
accepted:
08
03
2019
pubmed:
15
3
2019
medline:
6
2
2020
entrez:
15
3
2019
Statut:
ppublish
Résumé
Male urinary incontinence is highly prevalent, leading to a miserable quality of life. The artificial urinary sphincter (AUS) is the device that closely simulates the function of the biological urinary sphincter. The precise evaluation of occlusion mechanisms and of interaction phenomena occurring between AUS cuff and urethral duct is fundamental for more reliable design. The action induced in the interaction with urethral duct under a specific pressure depends on its constitutive material and structural characteristics. The methods of experimental and computational bioengineering are exploited to investigate mechanical functionality of the coupled system, as AUS and urethral duct. Experimental tests are developed to investigate the response when the AUS is inflated around a urethral phantom. Numerical model of the cuff is developed mimicking the experimental tests for the validation. Subsequently, numerical models are exploited to interpret the interaction of the cuff with urethral phantoms considering the influence of urethral size and of tissues mechanical behavior, mimicking healthy and degraded configurations. The investigation provides useful information on the behavior of AUS cuff with urethral duct evaluating the action induced and represents a support for planning an extension of experimental tests on animal and human urethral samples.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
888-896Informations de copyright
© 2019 International Center for Artificial Organs and Transplantation and Wiley Periodicals, Inc.
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