Devices and methods for altering gaseous flow within a lung to improve the expiration cycle of an individual, particularly individuals having chronic obstructive pulmonary disease. The methods and devices create channels in lung tissue and maintain the patency of these surgically created channels in...http://www.google.fr/patents/US8002740?utm_source=gb-gplus-shareBrevet US8002740 - Devices for maintaining patency of surgically created channels in tissue
Devices for maintaining patency of surgically created channels in tissue
