Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Drug delivery
Reexamination Certificate
2011-03-22
2011-03-22
McDermott, Corrine M (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Drug delivery
C623S001150, C623S001460
Reexamination Certificate
active
07909864
ABSTRACT:
The present invention is directed to implantable medical devices which may be used for controllably releasing a therapeutic agent within a patient and methods for making the same. These medical devices may include porous coatings, which may be polymer-free, located on an outer surface or abluminal surface of the medical device. The medical device may be a stent. The pores of the porous coating may be expandable to facilitate loading of the therapeutic agent. The medical device may be triggerable upon implantation of the medical device such that the volume of the voids shrinks to eject the therapeutic agent. The voids may be slots in the stent. Expandable materials or structures may be positioned in the voids to expand upon implantation and eject the therapeutic agent.
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Sheu Min-Shyan
Walak Steve
Xu Yixin
Boston Scientific Scimed Inc.
Kenyon & Kenyon LLP
McDermott Corrine M
Schall Matthew
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