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Sinus dilation catheter

  • US 9,486,614 B2
  • Filed: 06/27/2012
  • Issued: 11/08/2016
  • Est. Priority Date: 06/29/2011
  • Status: Active Grant
First Claim
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1. A method of treating a sinus cavity of a subject using a balloon dilation catheter having a substantially rigid inner guide member and a movable shaft coupled to a balloon that is slidably mounted on the substantially rigid inner guide member comprising:

  • directing a distal tip of the substantially rigid inner guide member through a nostril of the subject;

    positioning the distal tip of the substantially rigid inner guide member behind an uncinate process to place the distal tip within an ethmoidal infundibulum;

    riding the distal tip along a lateral side of the uncinate process to both avoid a nasal fontanelle and guide the distal tip directionally toward a maxillary ostium, wherein the distal tip is directed along the lateral side of the uncinate process until the distal tip is positioned behind a lower aspect of the uncinate process within the ethmoidal infundibulum;

    directing the distal tip into the maxillary sinus ostium;

    advancing the shaft and balloon in a distal direction over the substantially rigid inner guide member to place the balloon across the maxillary sinus ostium; and

    inflating the balloon.

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