Patent ID: 7814912

Claim:
A device for sizing an inside diameter of a lung passageway and delivering a bronchial isolation device into the passageway, the device comprising: an elongate shaft configured for positioning in the lung passageway; a housing located at or near a distal end of the elongate shaft for housing the bronchial isolation device; and a sizing element disposed along the elongate shaft at or near the housing, the sizing element comprising a plurality of transverse extensions, wherein each extension has a fixed length, and wherein said plurality of extensions comprises: two long transverse extensions disposed approximately opposite one another across the shaft, wherein a first length from a tip of one long extension to a tip of the other long extension corresponds to a maximum diameter of the lung passageway in which the bronchial isolation device may be functionally delivered; and two short transverse extensions disposed approximately opposite one another across the shaft, wherein a second length from a tip of one short extension to a tip of the other short extension corresponds to a minimum diameter of the lung passageway in which the bronchial isolation device may be functionally delivered.