Patent ID: 8425457

Claim:
An anterior/posterior occlusion and access device for use in the diagnosis and/or treatment of sinusitis or a disorder of the ear, nose or throat, said device comprising: a tube having an anterior end, a posterior end and at least one lumen; an anterior occluder at a first location on the tube; a posterior occluder at a second location on the tube, said second location being posterior to said first location; a working device insertion opening located anterior to the anterior occluder for insertion of a working device into a working device lumen; and a working device exit opening located between the anterior occluder and the posterior occluder and connected to a working device lumen such that a device advanced through the working device lumen may exit the catheter through the working device exit opening; and at least one additional element selected from the group consisting of a) at least one moveable suction port for suctioning blood, fluid or debris from a plurality of locations between the anterior occluder and posterior occluder and/or b) separate infusion and suction lumens in addition to said working device lumen, said infusion lumen being connected to an infusion port located between the anterior occluder and the posterior occluder and said suction lumen being connected to a suction port located between the anterior occluder and the posterior occluder, such that fluid may be infused through the infusion lumen into a location between the anterior and posterior occluders at the same time that fluid is being suctioned through the suction lumen from a location between the anterior and posterior occluders; device being deployable such that i) the anterior occluder occludes the nostril or nasal cavity on one side of the intranasal septum ii) the posterior occluder occludes the nasopharynx at a location posterior to the intranasal septum and iii) a working device may be inserted through the working device insertion opening and advanced out of the working device exit opening to a location within the nose, nasopharynx or paranasal sinus.