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Systems and methods for transnasal dilation of passageways in the ear, nose or throat

  • US 10,098,652 B2
  • Filed: 06/21/2016
  • Issued: 10/16/2018
  • Est. Priority Date: 04/21/2004
  • Status: Active Grant
First Claim
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1. A method for dilating a drainage passageway associated with a paranasal sinus of a patient, the method comprising:

  • advancing a guide catheter into a head of a patient such that a distal end of the guide catheter is positioned within or near the drainage passageway associated with the paranasal sinus;

    inserting an endoscope into the patient'"'"'s head;

    advancing a balloon catheter through a lumen of the guide catheter such that a balloon of the catheter passes out of the distal end of the guide catheter;

    viewing, with the endoscope, a first distal shaft marker disposed on a shaft of the balloon catheter a first known distance from the balloon;

    viewing, with the endoscope, a second distal shaft marker disposed on the shaft a second known distance from the balloon;

    approximating a location of the balloon relative to the drainage passageway associated with the paranasal sinus, using the first and second distal shaft marker and their known distances from the balloon; and

    expanding the balloon of the balloon catheter to remodel or break bone underlying mucosa of the drainage passageway associated with the paranasal sinus and dilate the drainage passageway associated with the paranasal sinus.

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