Hybrid stent and method of making
First Claim
Patent Images
1. A stent, comprising:
- a plurality of longitudinally spaced metallic rings aligned along a stent longitudinal axis, none of the metallic rings being connected by a metallic component;
a plurality of links arranged to connect a metallic ring to an adjacent metallic ring;
an outer layer of a first polymeric material covering an outer surface of the metallic rings; and
an inner layer of a second polymeric material covering an inner surface of the metallic rings;
wherein all of the links are formed by the outer layer and the inner layer, said outer layer and inner layer are directly joined to one another to form each link, each link is devoid of any metallic component and an entirety of the inner surface and outer surface of the stent is covered by the first and second polymeric materials.
2 Assignments
0 Petitions
Accused Products
Abstract
A stent is formed by encasing or encapsulating metallic rings in an inner polymeric layer and an outer polymeric layer. At least one polymer link connects adjacent metallic rings. The stent is drug loaded with one or more therapeutic agent or drug, for example, to reduce the likelihood of the development of restenosis in the coronary arteries. The inner and outer polymeric materials can be of the same polymer or different polymer to achieve different results, such as enhancing flexibility and providing a stent that is visible under MRI, computer tomography and x-ray fluoroscopy.
-
Citations
46 Claims
-
1. A stent, comprising:
-
a plurality of longitudinally spaced metallic rings aligned along a stent longitudinal axis, none of the metallic rings being connected by a metallic component; a plurality of links arranged to connect a metallic ring to an adjacent metallic ring; an outer layer of a first polymeric material covering an outer surface of the metallic rings; and an inner layer of a second polymeric material covering an inner surface of the metallic rings; wherein all of the links are formed by the outer layer and the inner layer, said outer layer and inner layer are directly joined to one another to form each link, each link is devoid of any metallic component and an entirety of the inner surface and outer surface of the stent is covered by the first and second polymeric materials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A stent, comprising:
-
a plurality of longitudinally spaced apart metallic rings aligned along a stent longitudinal axis; an outer layer of a first polymeric material covering an outer surface of the metallic rings; and an inner layer of a second polymeric material covering an inner surface of the metallic rings, wherein the inner and outer layers are directly joined to one another in the space between each adjacent ring to form a plurality of links which exclusively connect a metallic ring to an adjacent metallic ring. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
-
Specification