Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Drug delivery
Reexamination Certificate
2006-02-14
2006-02-14
Thanh, LoAn H. (Department: 3763)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Drug delivery
Reexamination Certificate
active
06997949
ABSTRACT:
A device useful for localized delivery of a therapeutic agent is provided. The device includes a structure including a porous polymeric material and an elutable therapeutic agent in the form of a solid, gel, or neat liquid, which is dispersed in at least a portion of the porous polymeric material. Methods for making a medical device having a blood-contacting surface is also provided. One method involves: providing a structure comprising a porous material; contacting the structure comprising a porous material with a concentrating agent to disperse the concentrating agent throughout at least a portion of the porous material; contacting the structure comprising a porous material and the concentrating agent with a solution of a therapeutic agent; and removing the therapeutic agent from solution within the porous material at the locations of the concentrating agent. Another method involves multiple immersion steps without the use of a concentrating agent.
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Medtronic Inc.
Thanh LoAn H.
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