Removable lung reduction devices, systems, and methods
First Claim
1. A device for limiting air flow in an air passageway, the device comprising an obstructing structure configured to be implanted into the air passageway upstream from a target region, the device is configured to be deployed in the air passageway such that the device precludes air from flowing into the target region past the device and allows air to flow out of the target region along a path between a portion of the obstructing member and a wall of the air passageway.
1 Assignment
0 Petitions
Accused Products
Abstract
An air passageway obstruction device includes a frame structure and a flexible membrane overlying the frame structure. The frame structure is collapsible upon advancement of the device into the air passageway, expandable into a rigid structure upon deploying in the air passageway and re-collapsible upon removal from the air passageway. The flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway. The device may be removed after deployment in an air passageway by re-collapsing the device and pulling the device proximally through a catheter.
-
Citations
20 Claims
- 1. A device for limiting air flow in an air passageway, the device comprising an obstructing structure configured to be implanted into the air passageway upstream from a target region, the device is configured to be deployed in the air passageway such that the device precludes air from flowing into the target region past the device and allows air to flow out of the target region along a path between a portion of the obstructing member and a wall of the air passageway.
-
7. An intra-bronchial valve comprising a flexible membrane supported on a frame, the valve configured to be deployed in an air passageway of a lung such that fluid is permitted to flow past the valve along a path between the membrane and a portion of the air passageway wall in only one direction.
-
8. An intra-bronchial valve device comprising:
-
a frame comprising a plurality of elongate frame supports joined by at least one attachment point;
a flexible membrane disposed on the frame and covering at least portions of the frame supports, the membrane having a concave side and a convex side;
wherein the device is configured to be implanted within an air passageway of a patient, and wherein the membrane is attached to the supports so as to preclude airflow through the passageway from the concave side to the convex side of the membrane while permitting air to flow from the convex side to the concave side along a path between the membrane and a portion of an air passageway wall. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. An air passageway obstructing device for use in occluding inspiratory airflow in an airway of a lung, the device comprising:
-
a frame comprising a plurality of struts joined to one another at a common point, the struts extending proximally and radially from the common point;
a membrane overlying the struts so as to form a concave side and a convex side of the membrane, the membrane being configured to prevent airflow between the concave side and the convex side. - View Dependent Claims (16, 17, 18)
-
-
19. A method of treating a lung, the method comprising:
-
delivering a one-way occlusion device to a deployment site, the occlusion device comprising an expandable frame supporting a membrane so as to form a concave side and a convex side of said membrane;
deploying said occlusion device in an airway of the lung at said deployment site, wherein air is precluded from flowing in a first direction from the concave side to the convex side of the membrane, and wherein fluid is permitted to flow in an opposite direction along a path between the membrane and the airway wall. - View Dependent Claims (20)
-
Specification