Patent ID: 8585728

Claim:
A method of confirming a location of a distal tip of a device placed within a sinus cavity of a patient comprising: introducing a directable endoscope into a nasal passageway of the patient and placing a distal end of the endoscope superior to a uncinate process; directing a viewing field of the endoscope in a retrograde direction and towards a sinus ostium; advancing a guide catheter into the nasal passageway, wherein a proximal end of the guide catheter is removably secured to a distal end of a handle, and wherein the handle defines a steering device recess that opens along an axial length of a side surface of the handle, and wherein a steering device is positioned within the steering device recess and disposed on a wire guide, and wherein the steering device is configured to advance with the wire guide by sliding within the steering device recess and along the axial length of the handle, and wherein the steering device is configured to provide rotation of the wire guide through complete revolutions while the steering device is positioned within the steering device recess; advancing the wire guide into the sinus cavity, wherein advancing the wire guide comprises sliding the wire guide within the steering device recess and rotating the steering device relative to the handle; inputting light to the sinus cavity via a proximal light port disposed external to the patient; and viewing the location of the emitted light to confirm the location of the wire guide.