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Devices, systems and methods useable for treating frontal sinusitis

  • US 10,034,682 B2
  • Filed: 03/22/2017
  • Issued: 07/31/2018
  • Est. Priority Date: 04/21/2004
  • Status: Active Grant
First Claim
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1. A method for dilating a frontal sinus ostium in a human or animal subject with a dilation catheter, the dilation catheter comprising a catheter shaft, a dilator positioned along a distal portion of the catheter shaft and having a sufficient length to extend through the frontal sinus ostium, the method comprising:

  • (a) inserting a guide into a head of the subject;

    (b) advancing the guide to the frontal sinus ostium, then stopping advancement of the guide when a distal portion of the guide is positioned within or adjacent to the frontal sinus ostium;

    (c) advancing the dilation catheter relative to the guide to position the dilator within the frontal sinus ostium; and

    (d) expanding the dilator, wherein expansion of the dilator results in dilation of the frontal sinus ostium and at least some breakage of bone adjacent to the frontal sinus ostium.

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