Stent having variable properties and method of its use
First Claim
1. A stent having a proximal end and a distal end, the stent comprising alternating serpentine bands and connection columns, each serpentine band comprising alternating peaks and valleys, the peaks being located at a proximal end of the serpentine band and the valleys beyond located at a distal end of the serpentine band, the peaks and valleys being circumferentially and longitudinally offset from one another, each connection column comprising a plurality of connections, each connection connecting a valley of one serpentine band and a peak of an adjacent serpentine band, the connection columns comprising a first connection column, and a second connection column, the first connection column comprising less connections than the second connection column.
0 Assignments
0 Petitions
Accused Products
Abstract
A stent and method of its use, the stent in its expanded configuration, exhibiting varying outward radial force along its length. In use, the expanded stent is of a tapered configuration which provides greater force in vessel regions requiring greater force and less force in regions requiring less. In particular the stent is useful in the ostium regions and at areas of bifurcation in vessels. Varying force over the length of the stent is achieved by varying the number of elements, the density of elements, the thickness of the elements making up the stent body, and maintaining a substantially metal to artery ratio in the expanded stent over its length.
101 Citations
19 Claims
- 1. A stent having a proximal end and a distal end, the stent comprising alternating serpentine bands and connection columns, each serpentine band comprising alternating peaks and valleys, the peaks being located at a proximal end of the serpentine band and the valleys beyond located at a distal end of the serpentine band, the peaks and valleys being circumferentially and longitudinally offset from one another, each connection column comprising a plurality of connections, each connection connecting a valley of one serpentine band and a peak of an adjacent serpentine band, the connection columns comprising a first connection column, and a second connection column, the first connection column comprising less connections than the second connection column.
Specification