Patent ID: 9486614
Filing Date: 2016-11-08
CPC Classification: A61B,A61M

Claim Text:
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.