Nitinol - Material with Unusual Properties
نویسنده
چکیده
Nitinol (Nickel-Titanium) alloys exhibit a combination of properties which make these alloys particularly suited for self-expanding stents. Some of these properties cannot be found in engineering materials used for stents today. The paper describes the fundamental mechanism of shape memory and superelasticity. Material properties and device characteristics like elastic deployment, thermal deployment, kink resistance, constancy of stress, dynamic interference, biased stiffness, MRI compatibility, radiopacity and biocompatibility are discussed.
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