Coating gradient for lubricious coatings on balloon catheters
AssigneeSciMed Life Systems, Inc.
InventorsIrina Nazarova, Lixiao Wang
Life of this patent
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Abstract
This invention relates to a dilatation balloon formed from an extruded tubular preform by blowing, said balloon having a body, at least one cone and at least one waist portion wherein said balloon has a lubricity coating gradient from the body portion which has the lowest coat thickness to the waist portion which has the highest coat thickness said coating applied to said extruded tubular preform prior to forming said balloon by blowing.
Claims17
A method of forming a lubriciously coated dilatation balloon, comprising the steps of:
- a) extruding balloon material into a tubular preform;
- b) coating said tubular preform with a lubricious coating material;
- and
- c) blowing said coated tubular preform into a balloon, said balloon having a body, at least one cone portion and at least one waist portion,
- wherein the balloon surface has a gradient of lubricity.
A method of forming a lubriciously coated medical device balloon, comprising the steps of:
- a) coating said tubular preform with a lubricious coating material;
- and
- b) blowing said coated tubular preform into a balloon, said balloon having a body, at least one cone portion and at least one waist portion,
- wherein the balloon surface has a gradient of lubricity.
Dependencies are inferred from the claim text.