An airway implant device for maintaining and/or creating an opening in air passageways is disclosed. Methods of using the device are also disclosed. The airway implant device comprises a deformable element to control the opening of an air passageway. Preferably the deformable element is an electroactive...http://www.google.co.uk/patents/US7882842?utm_source=gb-gplus-sharePatent US7882842 - Airway implant sensors and methods of making and using the same