Stent Having Helical Elements
First Claim
1. An expandable stent comprising a main body, wherein, when the stent is unexpanded, the main body comprises:
- a plurality of expandable helical segments; and
a plurality of main body cylindrical elements having collinear cylindrical axes, the main body cylindrical elements being adjacent to one another and being attached to one another by the helical segments, each main body cylindrical element comprising;
a circumference that is substantially identical to that of an adjacent cylindrical element; and
a plurality of circumferential segments joined together by portions of the helical segments, thereby forming the cylindrical element, and the plurality of circumferential segments comprising a majority of the circumference of each cylindrical element.
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 the comprises at least two 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.
121 Citations
2 Claims
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1. An expandable stent comprising a main body, wherein, when the stent is unexpanded, the main body comprises:
a plurality of expandable helical segments; and a plurality of main body cylindrical elements having collinear cylindrical axes, the main body cylindrical elements being adjacent to one another and being attached to one another by the helical segments, each main body cylindrical element comprising; a circumference that is substantially identical to that of an adjacent cylindrical element; and a plurality of circumferential segments joined together by portions of the helical segments, thereby forming the cylindrical element, and the plurality of circumferential segments comprising a majority of the circumference of each cylindrical element.
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2-42. -42. (canceled)
Specification