Stent configurations
First Claim
1. A stent of generally cylindrical shape and having a longitudinal axis comprising interconnected regularly arranged curvilinear bodies, the curvilinear bodies providing individual closed expansion cells, the cells having relatively wide end portions joined by a relatively narrow center portion, the end portions of a cell longitudinally displaced from one another, the cells being arranged end portion to end portion longitudinally with respect to the longitudinal axis of the stent, the curvilinear bodies being interconnected by one or more interconnecting elements which extend from one curvilinear body to another.
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Accused Products
Abstract
Improved stent configurations exhibiting limited recoil, resistance to compression and improved longitudinal flexibility.
94 Citations
19 Claims
- 1. A stent of generally cylindrical shape and having a longitudinal axis comprising interconnected regularly arranged curvilinear bodies, the curvilinear bodies providing individual closed expansion cells, the cells having relatively wide end portions joined by a relatively narrow center portion, the end portions of a cell longitudinally displaced from one another, the cells being arranged end portion to end portion longitudinally with respect to the longitudinal axis of the stent, the curvilinear bodies being interconnected by one or more interconnecting elements which extend from one curvilinear body to another.
- 10. A stent of generally cylindrical shape and having a longitudinal axis comprising interconnected separate regularly arranged curvilinear bodies, the curvilinear bodies providing individual closed expansion cells, the cells having relatively wide end portions joined by a relatively narrow center portion and being arranged end to end longitudinally with respect to the longitudinal axis of the stent, the curvilinear bodies being interconnected by one or more rotational elements which extend from one curvilinear body to another, each rotational element having a first end and a second end, which rotate on expansion of the stent.
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12. A stent of generally cylindrical shape and having a longitudinal axis comprising:
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a plurality of curvilinear bodies providing closed expansion cells, the cells being formed of relatively wide end portions and narrow center portions and being arranged end to end longitudinally along the longitudinal axis of the stent;
rotational interconnecting elements interconnecting the end portions of adjacent cells, each rotational element having a first end and a second end, which rotate on expansion of the stent; and
circumferentially extending members which extend between the narrow center portions of cells which are circumferentially adjacent one another. - View Dependent Claims (13, 14)
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15. A stent comprising:
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a plurality of interconnected cells including a first cell and a second cell longitudinally displaced from the first cell, an element extending between the first cell and the second cell, the element having a first end and a second end longitudinally and circumferentially offset from the first end, the element having at least one turn. - View Dependent Claims (16, 17)
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- 18. An unexpanded stent comprising a plurality of cells and a plurality of intercellular elements having turns, the intercellular elements extending between the cells, the intercellular elements having first ends and second ends which are longitudinally and circumferentially displaced from the first ends.
Specification