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US 5,667,767 AGranted
Compositions for use in embolizing blood vessels
AssigneeMicro Therapeutics, Inc.
InventorsRichard J. Greff, Michael L. Jones, Scott Evans
Life of this patent
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Abstract
Disclosed are compositions suitable for use in embolizing blood vessels which compositions comprise an ethylene vinyl alcohol copolymer, a biocompatible solvent and a water insoluble contrasting agent selected from the group consisting of tantalum, tantalum oxide and barium sulfate. Also disclosed are methods for embolizing a blood vessel using the compositions described herein.
Claims15
A composition comprising:
- (a) from about 2.5 to about 8.0 weight percent of an ethylene vinyl alcohol copolymer;
- (b) from about 10 to about 40 weight percent of a water insoluble contrast agent selected from the group consisting of tantalum, tantalum oxide and barium sulfate;
- (c) from about 52 to about 87.5 weight percent of a biocompatible solvent
- wherein the weight percent of each of the components is based on the total weight of the complete composition.
1 more element
A method for embolizing a blood vessel by injecting into said blood vessel a sufficient amount of an embolizing composition comprising:
- (a) from about 2.5 to about 8.0 weight percent of an ethylene vinyl alcohol copolymer embolizing agent;
- (b) from about 10 to about 40 weight percent of a water insoluble contrast agent selected from the group consisting of tantalum, tantalum oxide and barium sulfate;
- (c) from about 52 to about 87.5 weight percent of a biocompatible solvent
- wherein the weight percent of each of the components is based on the total weight of the complete composition
- under conditions wherein a precipitate is formed which embolizes the blood vessel.
2 more elements
Dependencies are inferred from the claim text.