Antithrombotic and anti-restenotic drug eluting stent
First Claim
1. An expandable intraluminal medical device comprising:
- a substantially cylindrical device which is expandable from a first diameter for delivery into a vessel, to a second diameter for expanding the vessel, the substantially cylindrical device having a luminal surface and an abluminal surface, the distance between the luminal surface and the abluminal surface defining the wall thickness of the substantially cylindrical device;
at least one therapeutic agent, the therapeutic agent comprising an anti-porliferative;
a plurality of openings in the substantially cylindrical device each configured as a reservoir for holding the at least one therapeutic agent for controlled delivery into the vessel, the plurality of openings flush with the luminal surface and extending from the luminal surface to the abluminal surface; and
an anti-thrombotic agent affixed to at least one of the luminal and abluminal surfaces of the substantially clylindrical device and not the surfaces of the reservoirs such that the at least one therapeutic agent makes contact directly with the surfaces of the plurality of openings.
2 Assignments
0 Petitions
Accused Products
Abstract
An expandable medical device includes a plurality of elongated struts, forming a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter. A plurality of different beneficial agents may be loaded into different openings within the struts for delivery to the tissue. For treatment of conditions such as restenosis, different beneficial agents are loaded into different openings in the device to address different biological processes involved in restenosis and are delivered at different release kinetics matched to the biological process treated. The different beneficial agents may also be used to address different diseases, such as restenosis and acute myocardial infarction from the same drug delivery device. In addition, anti-thrombotic agents may be affixed to at least a portion of the surfaces of the medical device for the prevention of sub-acute thrombosis.
60 Citations
18 Claims
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1. An expandable intraluminal medical device comprising:
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a substantially cylindrical device which is expandable from a first diameter for delivery into a vessel, to a second diameter for expanding the vessel, the substantially cylindrical device having a luminal surface and an abluminal surface, the distance between the luminal surface and the abluminal surface defining the wall thickness of the substantially cylindrical device; at least one therapeutic agent, the therapeutic agent comprising an anti-porliferative; a plurality of openings in the substantially cylindrical device each configured as a reservoir for holding the at least one therapeutic agent for controlled delivery into the vessel, the plurality of openings flush with the luminal surface and extending from the luminal surface to the abluminal surface; and an anti-thrombotic agent affixed to at least one of the luminal and abluminal surfaces of the substantially clylindrical device and not the surfaces of the reservoirs such that the at least one therapeutic agent makes contact directly with the surfaces of the plurality of openings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification