REMOVABLE LUNG REDUCTION DEVICES, SYSTEMS, AND METHODS

摘要

An air passageway obstruction device (80) includes a frame structure (86) an d a flexible membrane (112) overlying the frame structure (86). The frame structure (86) is collapsible upon advancement of the device (80) into the a ir passageway, expandable into a rigid structure upon deploying in the air passageway and recollapsible upon removal from the air passageway. The flexible membrane (112) obstructs inhaled air flow into a lung portion communicating with the air passageway. The device(80) may be removed after deployment in an air passageway by recollapsing the device (80) and pulling the device (80) proximally through a catheter.