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Balloon fold design for deployment of bifurcated stent petal architecture

  • US 8,647,376 B2
  • Filed: 03/30/2007
  • Issued: 02/11/2014
  • Est. Priority Date: 03/30/2007
  • Status: Expired due to Fees
First Claim
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1. A balloon catheter comprising a balloon inflation system, the balloon inflation system comprising a side branch balloon structure, capable of at least partially expanding a side branch structure of a bifurcated stent, wherein:

  • the side branch balloon structure has an inflated configuration having a radial end, a luminal end and a side wall there between, where the radial end is distal from the luminal end and the luminal end is abutting the balloon catheter and;

    an un-inflated configuration and when in the un-inflated configuration the side branch balloon structure is in-folded in a pleated or overlapping fold pattern from a cup fold where the radial end is flush with the luminal end and the side wall extends entirely around a cavity having an open end opposite the radial end, wherein the pleated or overlapping fold pattern permits orderly unfolding when the side branch is inflated;

    wherein the side branch balloon structure is in the un-inflated configuration.

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