Radial force of coronary stents: A comparative analysis
| Autor: | Jean Fuseri, Vincent Garitey, Catherine Masson, Paul Barragan, Pierre O. Roquebert, Régis Rieu, Marc Silvestri |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Comparative test
business.industry medicine.medical_treatment Stent General Medicine Deformation (meteorology) Compression (physics) Long period medicine Generatrix Radiology Nuclear Medicine and imaging Cardiology and Cardiovascular Medicine Radial Force Variation business Pressure gradient Biomedical engineering |
| Zdroj: | Catheterization and Cardiovascular Interventions. 46:380-391 |
| ISSN: | 1522-726X 1522-1946 |
| DOI: | 10.1002/(sici)1522-726x(199903)46:3<380::aid-ccd27>3.0.co;2-j |
| Popis: | High radial force has become an essential feature of new coronary stents. These stents are expected to exhibit sufficient radial force and minimum radial recoil when deployed in atheromatous lesions of various morphologies. The aim of this study was to compare the radial force of 17 coronary stents in vitro (Anglodynamics, ACS Multilink, AVE Micro II and GFX, Bard XT, Biocompatibles PC, Cook GR II, Cordis Crossflex, Hexacath Freedom, Johnson & Johnson PS 153'PS 154, and Crown, Medtronic Wiktor and BeStent BEL-15, Saint-Come SC 1616, Scimed Nir 7 and 9). Two in vitro mechanical tests were performed to assess the stent radial force. The first test measured the deformation of coronary stents in a V-stand by using a deformation controlled by a dynamometer based on a longitudinal generatrix. The precision was of 1 micron. This comparative test highlighted the appreciable variation in behavior of the range of tested stents in terms of resistance to local compression. The line graphs obtained show a very small (and in some cases nonexistent) purely elastic behavior area in the stents, with this result reflecting a small ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text