Glass fiber chemical delivery system
AssigneePPG Industries Ohio, Inc.
InventorBruce E. Novich
Life of this patent
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Abstract
A glass fiber chemical delivery system including water soluble fiberglass particles containing a chemical composition. The water soluble fiberglass particles may define pores in which the chemical composition is contained or the water soluble fiberglass particles may each define a hollow core containing the chemical composition. As the fiberglass particles dissolve in an aqueous environment, such as within cells of a blood vessel wall or in a reaction vessel, the chemical composition is released.
Claims13
A vascular drug delivery device comprising:
- an intravascular stent;
- and
- a water soluble glass composition coated on said stent, wherein said glass composition comprises a plurality of water soluble glass fibers, said glass fibers releasably containing a drug.
A method of preventing restinosis at a location of an intravascular stent comprising the steps of:
- providing an intravascular stent;
- coating said stent with a plurality of water soluble glass fibers, said glass fibers releasably containing a drug, said drug adapted to prevent restinosis induced by said stent;
- inserting said stent into a blood vessel;
- and
- allowing said glass fibers to dissolve in water within the blood vessel such that said fibers release said drug.
A method of delivering a drug comprising the steps of:
- providing a drug delivery system, said system including an intravascular stent coated with a plurality of water soluble glass fibers and a drug releasably contained within said glass fibers;
- inserting said stent into a blood vessel of a human or animal;
- and
- allowing said glass fibers to dissolve in water in said human or animal such that said drug is released from within said fibers.
Dependencies are inferred from the claim text.