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Stent delivery system and method of use

  • US 6,136,011 A
  • Filed: 07/14/1998
  • Issued: 10/24/2000
  • Est. Priority Date: 07/14/1998
  • Status: Expired due to Term
First Claim
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1. A stent delivery catheter assembly for an expandable stent, comprising:

  • a multi-lumen catheter dimensioned to be advanceable through vasculature to a deployment site;

    an inner inflation balloon, having a first preselected inflated length and diameter disposed about said catheter and in fluid communication with a first lumen formed in said catheter;

    an outer inflation balloon, having a second preselected inflated length and diameter disposed about said catheter, wherein the inflated length of said outer balloon is greater than the inflated length of said inner balloon, wherein the inflated diameter of said outer balloon is no greater than said inflated diameter of said inner balloon and wherein said outer balloon is positioned to centrally contain said inner balloon; and

    an expandable stent mounted on the outer inflation balloon.

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