Patent ID: 8118757

Claim:
A method for measuring the size of and treating a paranasal sinus ostium of a patient, said method comprising the steps of: advancing a guidewire through a targeted paranasal sinus ostium in a patient; inserting a paranasal sinus ostium measuring device into the patient over the guidewire, wherein the measuring device comprises: an elongate, at least partially rigid shaft having a proximal end and a distal end; an enlarged distal end portion at the distal end of the shaft; and at least one preformed bend in the shaft; locating the targeted paranasal sinus ostium with the distal end portion of the paranasal sinus ostium measuring device; positioning the distal end portion of the paranasal sinus ostium measuring device at least partially within or through the targeted paranasal sinus ostium; determining a diameter of the targeted paranasal sinus ostium using the paranasal sinus ostium measuring device; withdrawing the paranasal sinus ostium measuring device from within or through the targeted paranasal sinus ostium; subsequent to withdrawing the paranasal sinus ostium measuring device, selecting a balloon catheter based upon the diameter of the targeted paranasal sinus ostium such that a balloon of the balloon catheter, when inflated within the ostium, fractures, moves or remodels bony structures that surround or are adjacent to the targeted paranasal sinus ostium; and intra-operatively treating the targeted paranasal sinus ostium with the selected balloon catheter.