Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Reexamination Certificate
2011-05-10
2011-05-10
Azpuru, Carlos A (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
C424S423000, C424S424000, C424S425000
Reexamination Certificate
active
07939095
ABSTRACT:
Coatings are provided in which surfaces may be activated by covalently bonding a combination ofsilane derivatives (A) to the metal surface, covalently bonding a lactone polymer (B) to the silane derivative by in situ ring opening polymerization, and depositing at least one layer of a polyester (C) on the bonded lactone polymer. Biologically active agents or therapeutic compounds may be deposited with any of the polyester layers. Such coated surfaces may be useful in medical devices, in particular stents.
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Azpuru Carlos A
Cordis Corporation
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