Buckling test as a new approach to testing flexural rigidities of angiographic catheters

Autor:	Derek Emery, Philippe McCracken, Jason P. Carey
Rok vydání:	2005
Předmět:	Materials science Angiographic catheters business.industry Angiography Biomedical Engineering Structural integrity Flexural rigidity Equipment Design Structural engineering Catheterization Biomaterials Compressive load Flexural strength Buckling Tissue damage business Torsional rigidity
Zdroj:	Journal of Biomedical Materials Research Part B: Applied Biomaterials. :211-218
ISSN:	1552-4981 1552-4973
DOI:	10.1002/jbm.b.30358
Popis:	The general design of catheters is bound by many needs. Angiographic catheters must be rigid enough to be torquable and to maintain lumen structural integrity, but also flexible enough to bend with the curves of a blood vessel. They should cause minimal tissue damage; avoid biocompatibility-related complications, and be reliable over time. This study proposes a new testing approach to clearly identify the flexural rigidity of catheters by using a buckling test to evaluate the peak compressive load. This study also tests several angiographic catheters for axial and torsional rigidity. Seven different catheters used for short-term procedures, with and without reinforcement and of various sizes, were evaluated as a preliminary evaluation of test methods for future in vitro testing of catheters; it was found that the buckling test works very well and provides repeatable results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c342346a640c8648896bf30559c50f22 https://doi.org/10.1002/jbm.b.30358 Zobrazit plný text záznamu Plný text