| abstract |
A system for diagnosing and / or treating sinusitis or other nasal sinus malfunctions, comprising: a guide catheter (200, 218, 224) for insertion into a nasal cavity having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end, the guide catheter having one or more preformed curves Including bends; a guidewire (1004, 202, 210, 220, 416) which can be inserted through the lumen of the guiding catheter; and a balloon catheter (204, 208, 212, 214, 230, 300, 302, 418, 522, 530, 546, 668, 812, 820) which can be advanced over the guide wire through the guide catheter (1002, 200, 206), to be introduced into a natural ostium of a paranasal sinus to dilate the ostium, wherein the balloon (504, 510, 518, 526) of the balloon catheter (204, 208, 212, 214, 230, 300, 302, 418, 522, 530, 546, 668, 812, 820) is folded so that ... |