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Selective coating of a balloon catheter with lubricious material for stent deployment

  • US 6,306,144 B1
  • Filed: 11/01/1996
  • Issued: 10/23/2001
  • Est. Priority Date: 11/01/1996
  • Status: Expired due to Term
First Claim
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1. A balloon catheter having a shaft and a balloon associated therewith and a stent carried on said balloon, the balloon having a proximal end portion, a distal end portion and a central portion, wherein the balloon has a collapsed state in which a surface portion of the central portion is exposed and an expanded state, the improvement comprising a coating means associated with the catheter, said means being constructed and arranged to provide a first lubricious coating to a major portion of the shaft and a second coating to at least a portion of the exposed surface of the balloon when the balloon is in its collapsed state, wherein the second coating is less lubricious than the first lubricious coating, whereby said stent is provided with a secure seating area on the balloon.

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