STENT HAVING HELICAL ELEMENTS
First Claim
1. An expandable stent having an unexpanded state, the unexpanded stent comprising:
- a body defining a cylindrical axis, the body including a helical segment having a substantially S-shaped portion defining at least one generally linear portion being angled with respect to the cylindrical axis.
3 Assignments
0 Petitions
Accused Products
Abstract
An expandable stent comprised of a plurality of helical segments is disclosed. In one embodiment, the stent is generally cylindrical in shape having a cylindrical axis, and comprises a first and second set of helical segments. The helical segments in the first set are substantially parallel and have a first pitch forming a first helical angle with respect to the cylindrical axis. The helical segments in the second set are also generally parallel to each other and form a second pitch that differs from the first pitch, thereby forming a second helical angle with respect to the cylindrical axis. In an alternative embodiment, the stent comprises one set of helical segments and a plurality of circumferential elements that are joined together by the helical segments to form a plurality of cylindrical elements which are joined together to form a stent body. The stent may also have endzones.
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Citations
13 Claims
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1. An expandable stent having an unexpanded state, the unexpanded stent comprising:
a body defining a cylindrical axis, the body including a helical segment having a substantially S-shaped portion defining at least one generally linear portion being angled with respect to the cylindrical axis. - View Dependent Claims (2, 3)
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4. An expandable stent having an unexpanded state, the unexpanded stent comprising:
a cylindrical main body defining a cylindrical axis, the main body including a plurality of helical segments, each helical segment including a substantially S-shaped segment defining at least one generally linear portion being angled with respect to the cylindrical axis. - View Dependent Claims (5, 6, 7, 8, 9)
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10. An expandable stent having an unexpanded state, the unexpanded stent comprising:
a main body defining a cylindrical axis, the main body including a helical segment including a substantially S-shaped segment and a substantially H-shaped segment, the S-shaped segment defining at least one generally linear portion nonparallel to the cylindrical axis. - View Dependent Claims (11, 12, 13)
Specification