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Flexible helical stent having different helical regions
专利权人:
Brian P. Baillargeon
发明人:
Brian P. Baillargeon,Ramesh Marrey
申请号:
US13196475
公开号:
US08961590B2
申请日:
2011.08.02
申请国别(地区):
US
年份:
2015
代理人:
摘要:
The present invention relates to tubular stents that are implanted within a body lumen. The stent has a cylindrical shape defining a longitudinal axis and includes a proximal helical section, a distal helical section and an intermediate ring section there between. Each of the proximal and distal helical sections has of a plurality of longitudinally oriented strut members and a plurality of circumferentially oriented hinge members connecting circumferentially adjacent strut members to form a band, the band being wrapped about the longitudinal axis in a substantially helical manner to form a plurality of helical windings, wherein the distal helical section is wound about the longitudinal axis in the opposite direction from the proximal helical section. The intermediate ring section includes a plurality of longitudinally oriented strut members and a plurality of circumferentially oriented hinge members connecting circumferentially adjacent strut members to form an endless ring.
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