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Coating gradient for lubricious coatings on balloon catheters

  • US 6,261,630 B1
  • Filed: 01/17/2001
  • Issued: 07/17/2001
  • Est. Priority Date: 06/03/1997
  • Status: Expired due to Term
First Claim
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1. 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.

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