Expandable medical device for delivery of beneficial agent
First Claim
1. An expandable medical device comprising:
- at least one cylindrical tube;
a plurality of substantially rigid sections interconnected to form the at least one cylindrical tube;
a plurality of ductile hinges formed between the substantially rigid sections, the ductile hinges allowing the cylindrical tube to be expanded or compressed from a first diameter to a second diameter by deformation of the ductile hinges without substantial deformation of the substantially rigid sections; and
a plurality of openings in the plurality of substantially rigid sections, the plurality of openings containing at least one beneficial agent, none of said openings located on said plurality of ductile hinges, wherein the ductile hinges are designed to deform plastically upon radial expansion or compression of the expandable medical device while the plurality of substantially rigid sections experience substantially no plastic deformation upon radial expansion or compression.
2 Assignments
0 Petitions
Accused Products
Abstract
An expandable medical device has a plurality of elongated struts, the plurality of elongated struts being joined together to form a substantially cylindrical device. The device is expandable from a cylinder having a first diameter to a cylinder having a second diameter, and the plurality of struts each having a strut width in a circumferential direction. At least one of the struts includes at least one opening extending at least partially through a thickness of the strut. A beneficial agent can be loaded into the opening within the strut. The expandable medical device may further include a plurality of ductile hinges formed between the elongated struts, the ductile hinges allowing the cylindrical device to be expanded or compressed from the first diameter to the second diameter by deformation of the ductile hinges.
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Citations
34 Claims
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1. An expandable medical device comprising:
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at least one cylindrical tube; a plurality of substantially rigid sections interconnected to form the at least one cylindrical tube; a plurality of ductile hinges formed between the substantially rigid sections, the ductile hinges allowing the cylindrical tube to be expanded or compressed from a first diameter to a second diameter by deformation of the ductile hinges without substantial deformation of the substantially rigid sections; and a plurality of openings in the plurality of substantially rigid sections, the plurality of openings containing at least one beneficial agent, none of said openings located on said plurality of ductile hinges, wherein the ductile hinges are designed to deform plastically upon radial expansion or compression of the expandable medical device while the plurality of substantially rigid sections experience substantially no plastic deformation upon radial expansion or compression. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An expandable stent comprising:
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a plurality of substantially rigid sections; a plurality of ductile hinges interconnecting the plurality of substantially rigid sections to form a cylindrical stent which is expandable from a first diameter to a second diameter by deformation of the plurality of ductile hinges without substantial deformation of the substantially rigid sections; and a plurality of openings containing at least one beneficial agent, the openings positioned in the substantially rigid sections, none of said openings located on said plurality of ductile hinges, wherein the ductile hinges are designed to deform plastically upon radial expansion or compression of the expandable medical device while the plurality of substantially rigid sections experience substantially no plastic deformation upon radial expansion or compression. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification