Stent having variable properties and method of its use
First Claim
1. An unexpanded stent having a first portion and a second portion, the first and second portions connected one to the other,the first portion comprising a plurality of abutting interconnected serpentine bands of like configuration, the second portion comprising a plurality of spaced serpentine bands of like configuration, spaced serpentine bands which are adjacent one another connected by connectors whose first and second ends are circumferentially and longitudinally offset from one another.
1 Assignment
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.
198 Citations
20 Claims
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1. An unexpanded stent having a first portion and a second portion, the first and second portions connected one to the other,
the first portion comprising a plurality of abutting interconnected serpentine bands of like configuration, the second portion comprising a plurality of spaced serpentine bands of like configuration, spaced serpentine bands which are adjacent one another connected by connectors whose first and second ends are circumferentially and longitudinally offset from one another.
- 7. A stent having a first portion and a second portion, the first portion connected to the second portion, the first portion comprising a plurality of symmetric cells, the second portion comprising a plurality of connected, spaced apart serpentine bands.
Specification