SHAPE MEMORY ALLOY ENDOPROSTHESIS DELIVERY SYSTEM
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United States of America Patent
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Jun 12, 2008
filing date -
Jun 17, 2003
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Abstract
In accordance with embodiments of the present invention, a method for preparing a shape memory alloy endoprosthesis, displaying strain induced martensite phenomenon, for delivery includes inserting a shape memory alloy endoprosthesis into a delivery device, inducing a first strain within a first region of the shape memory alloy endoprosthesis, inducing a second strain within a second region of the shape memory alloy endoprosthesis, and sterilizing the delivery device while maintaining the first strain and the second strain induced within the shape memory alloy endoprosthesis. In accordance with other embodiments of the present invention, an apparatus for delivering a shape memory alloy endoprosthesis includes an inner core having a first diameter, an outer body having a second diameter greater than the first diameter, and a calibrated endcap attached to the inner core. The outer body surrounds the inner core, and the calibrated endcap includes a roof section having a third diameter greater than the first diameter and less than the second diameter.
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