Sinus dilation catheter
First Claim
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.
1 Assignment
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Accused Products
Abstract
A balloon dilation catheter includes 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. To treat a sinus cavity of a subject using the balloon dilation the substantially rigid inner guide member is advanced into a drainage pathway of the sinus (e.g., frontal recess or maxillary sinus) of the subject via a nasal passageway. The shaft and balloon are advanced in a distal direction over the substantially rigid inner guide member to place the balloon in the drainage pathway. The balloon is inflated to expand or otherwise remodel the drainage pathway.
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Citations
16 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification