Drug-eluting stent having collagen drug carrier chemically...

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert

Reexamination Certificate

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Reexamination Certificate

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07351421

ABSTRACT:
A method for treating vulnerable plaques of a patient, comprising: providing a biodegradable stent comprising a first supporting zone made of a first biodegradable material, wherein the supporting zone comprises at least a portion of continuous circumference of the stent; and a second therapeutic zone made of a second biodegradable material, wherein the therapeutic zone comprises at least one bioactive agent; delivering the biodegradable stent to the vulnerable plaques; orienting the therapeutic zone at about the luminal surface of the vulnerable plaque; and releasing the at least one bioactive agent for treating the vulnerable plaques.

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