Intra-bronchial obstructing device that controls biological interaction with the patient

A method of treating a lung comprising:

• providing an implantable obstruction device at a distal end of a delivery catheter, the obstruction device comprising a membrane on an outer portion thereof;
• associating a medicant with the obstruction device;
• guiding the distal end of the catheter to a delivery site in a lung and deploying the obstruction device in an air passageway of the lung so as to preclude air flow in at least one direction through the air passageway;
• and
• removing the catheter from the lung and leaving the implanted obstruction device in place;
• wherein the obstruction device comprises a one-way valve and further comprising placing the obstruction device in an air passageway in an orientation that prevents fluid from flowing distal of the device while allowing fluid to travel in a proximal direction past the device.

A method of treating a lung comprising:

• providing an implantable obstruction device at a distal end of a delivery catheter, the obstruction device comprising a membrane on an outer portion thereof;
• associating a medicant with the obstruction device;
• guiding the distal end of the catheter to a delivery site in a lung and deploying the obstruction device in an air passageway of the lung so as to preclude air flow in at least one direction through the air passageway;
• removing the catheter from the lung and leaving the implanted obstruction device in place;
• and
• configuring and deploying the obstruction device so as to maintain a mucociliary pathway between a distal side and a proximal side of the obstruction device.