A balloon-tipped, wire-guided double lumen, endobronchial blocker catheter (6) is provided for insertion into the tracheal bronchial tree using a fiberoptic bronchoscope (2). The catheter incorporates a removable wire guide (14), which runs the entire length of the catheter exiting the tip as a small...http://www.google.es/patents/US5904648?utm_source=gb-gplus-sharePatente US5904648 - Guided endobronchial blocker catheter
