Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent combined with surgical delivery system
Reexamination Certificate
2005-02-15
2005-02-15
Isabella, David J. (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent combined with surgical delivery system
C606S108000
Reexamination Certificate
active
06855160
ABSTRACT:
The present invention provides a system for delivering a therapeutic agent in combination with an implanted device to maximize a therapeutic benefit offered by each. Preferably, the therapeutic agent is contained within a solid matrix form such as a pellet or gel to facilitate its handling, and to regulate its rate of dissipation into the tissue after delivery. The implant device is specially configured to receive retain the matrix but permit blood to interact with the matrix so that the agent can be released to the blood in, around the device, and the surrounding tissue. A delivery system comprises an implant delivery device having an obturator capable of piercing the tissue and an agent matrix delivery device to place a matrix form, such as a pellet, into the interior of the implant after it has been implanted. Preferably, the implant delivery device and the matrix delivery device are contained in one apparatus to facilitate delivery of the pellet into the embedded implant. The present invention is useful for treating tissue in any area of the body, especially ischemic tissue experiencing reduced blood flow. The present devices and methods are especially useful for treatment of ischemia of the myocardium. In treatment of the myocardium, the present implant device and matrix combination may be delivered surgically through the epicardium of the heart.
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pa
Forcucci Stephen J.
Forde Sean
Gambale Richard A.
Weiser Michael F.
C. R. Bard Inc.
Isabella David J.
Kirkpatrick & Lockhart LLP
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