Stent and method for manufacturing the stent
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United States of America Patent
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app pub date -
Aug 31, 2005
filing date -
Sep 1, 2004
priority date (Note) -
Abandoned
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Abstract
A stent includes a stent body with a diameter of between approximately 4 and 12 mm and a length of between approximately 10 and 250 mm. S-shaped struts are disposed helically about the circumference along helical turns. The struts have straight portions and curved portions connecting respectively adjacent ones of the straight portions. Bridges connect the struts in adjacent ones of the turns. The bridges include connecting bridges and a given number of sacrificial bridges before being expanded, and the connecting bridges and less than the given number of the sacrificial bridges after being at least partially expanded. A method for manufacturing a helical stent includes the steps of providing a stent body with struts disposed about the circumference thereof in turns and with bridges connecting the struts in adjacent turns. The stent body is expanded and, thereafter, some of the bridges, in particular, sacrificial bridges, are removed.
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