Bronchoscopic repair of air leaks in a lung
View Patent ↗Systems and devices for minimally invasively treating an air leak in a lung comprise the steps of detecting an air leak in a lung; locating an airway in fluid communication with the air leak, introducing a bronchoscope into a patient's airway to a position adjacent the target section and occluding an airway upstream of the air leak for a period of time. The airway occlusion device is preferably removed after the air leak has substantially permanently healed. The occluding device may be a one-way valve. The occluding device may also comprise strut members and anchors that penetrate an airway wall.
1. A system for use in treating an air leak in a lung, the system comprising:
a balloon catheter configured to occlude an airway and to simultaneously measure a diameter of the airway;
a delivery catheter configured to deliver an obstruction device into an airway of the lung;
at least one occlusion device adapted to occlude airflow in an inspiratory direction while allowing fluid to flow in an expiratory direction, wherein the occlusion device comprises a central connector rod extending proximally from a central portion thereof the occlusion device surrounding at least a portion of the central connector rod;
the occlusion device being configured such that fluid flow in the expiratory direction passes between an airway wall and a portion of the occlusion device; and
the occlusion device further being configured to expand and contract during expansion and contraction of surrounding lung tissue during a respiration cycle.
2. The system of claim 1 , wherein the occlusion device comprises an hourglass-shaped frame.
3. The system of claim 2 , wherein the hourglass-shaped frame comprises the central portion, a plurality of anchors extending radially outward and distally from the central portion, and a plurality of strut members extending radially outward and proximally from the central portion.
4. The system of claim 3 , wherein the frame further comprises a flexible membrane supported by the strut members.
5. The system of claim 1 , wherein the balloon catheter is sized to permit selection of one of a plurality of available obstruction members.
6. The system of claim 1 , wherein the occlusion device comprises anchors extending radially outward and distally from the central portion.
7. The system of claim 6 , wherein the anchors further comprise stops preventing the anchors from penetrating beyond a desired depth.
8. The system of claim 1 , wherein the central connector rod comprises a knob disposed at a proximal end thereof.