| Autor: |
T. Duerig, D. Stoeckel, A. Pelton |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
Shape Memory Alloys for Biomedical Applications ISBN: 9781420079661 |
| DOI: |
10.1201/9781439829219.ch10 |
| Popis: |
Self-expanding Nitinol stents have revolutionized the treatment of peripheral vascular disease. Nitinol stents are manufactured to a size slightly larger than the target vessel size and delivered constrained in a delivery system. After deployment, they position themselves against the vessel wall with a low, ‘chronic’ outward force. They resist outside forces with a significantly higher radial resistive force. This unique behaviour can be directly attributed to the unusual properties of Nitinol, particularly its stress/strain hysteresis. How these material properties relate to the characteristic performance of self-expanding stents is explained. Biocompatibility and corrosion resistance of Nitinol stents are critically reviewed, as well as durability and fatigue. Commercially available stents are listed and differentiated. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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