Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Matrices
Reexamination Certificate
2004-02-27
2008-08-05
Henley, III, Raymond J (Department: 1614)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Matrices
C424S486000, C424S780000, C514S772100, C514S781000
Reexamination Certificate
active
07407671
ABSTRACT:
A system for delivering solute to a target location within a mammalian body, the system including a medical device, a thermosensitive cellulose gel structure over the medical device, and a biologically active solute within said gel structure. The gel structure deswells and expels the biologically active solute with an increase in gel temperature. The invention includes a method of delivering solute to a target location, where the method includes the steps of providing a thermosensitive cellulose gel structure, wherein the gel structure is loaded with a solute; positioning the loaded gel structure to the target location; and increasing the temperature of the loaded gel structure.
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Fisher John P.
Gehrke Stevin H.
McBride James F.
Boston Scientific Scimed Inc.
Henley, III Raymond J
Kenyon & Kenyon LLP
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