One-way valve devices for anchored implantation in a lung
An intra-bronchial device placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes a support structure, an obstructing member carried by the support structure that reduces ventilation to the lung portion by preventing air from being inhaled into the lung portion, and at least one anchor carried by the support structure that anchors the obstruction device within the air passageway. The anchor may engage the air passageway wall by piercing or friction, include a stop dimensioned for limiting the piercing of the air passageway wall, and may be releasable from the air passageway for removal of the intra-bronchial device. The anchors may be carried by a peripheral portion of the support structure, or by a central portion of the support structure. The obstructing member may be a one-way valve.
1. A device for obstructing an airway, the device comprising:
a central support structure, the central support structure having a proximal end and a distal end;
an occluding member carried on the central support structure, the occluding member configured to transition between a compressed configuration and an occluding configuration;
a first anchor having a first anchor end, the first anchor connected to the central support structure and configured to transition between a collapsed configuration and an expanded configuration; and
a second anchor having a second anchor end, the second anchor configured to transition between a collapsed configuration and an expanded configuration;
wherein the second anchor end is positioned distal to both the first anchor end and the distal end of the support structure when the first anchor and the second anchor are in the expanded configuration; and
wherein the occluding member comprises a one-way valve.
2. The device of claim 1 , wherein at least one of the first anchor end and the second anchor end is configured to penetrate tissue in the airway.
3. The device of claim 2 , wherein at least one of the first anchor end and the second anchor end further comprises a stop, wherein said stop is configured to limit a depth to which at least one of the first anchor end and the second anchor end is able to penetrate tissue in the airway.
4. The device of claim 2 , wherein at least one of the first anchor end and the second anchor end is releasable from the tissue in the airway.
5. The device of claim 1 , wherein the occluding member comprises a generally conical flexible membrane.
6. The device of claim 1 , wherein the device is configured to fit within a working channel of a catheter when the occluding member is in the compressed configuration and the first anchor and second anchor are in the collapsed configuration.
7. The device of claim 1 , wherein the occluding member inhibits movement of air past the occluding member in the distal direction through the airway when the occluding member is in the occluding configuration.
8. The device of claim 1 , wherein at least one of the first anchor and the second anchor forms an anchor base angle with a longitudinal axis of the central support structure, the anchor base angle creating an anchor deployment force and causing anchor release.
9. The device of claim 1 , wherein at least one of the first anchor and the second anchor is constructed of a shape memory material.
10. The device of claim 1 , wherein the central support structure comprises a plurality of frame members.
11. The device of claim 10 , wherein the plurality of frame members are constructed of a shape memory material.
12. The device of claim 10 , wherein the plurality of frame members are configured to transition between an expanded configuration and a compressed configuration.
13. The device of claim 10 , wherein the occluding member is carried on the plurality of frame members.
14. The device of claim 1 , wherein the occluding member has a closed distal end and an opened proximal end.
15. The device of claim 1 , wherein the occluding member is configured to allow for mucus to move past the occluding member when the occluding member is in the occluding configuration.
16. The device of claim 1 , wherein the first anchor is positioned proximal to the occluding member.