Removable anchored lung volume reduction devices and methods

• US 8,177,805 B2
• Filed: 08/04/2011
• Issued: 05/15/2012
• Est. Priority Date: 03/20/2002
• Status: Expired due to Term

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Spiration, Inc. (Olympus Corporation)
• Inventors: Alferness, Clifton A.
• Primary Examiner(s): Nguyen, Victor
• Application Number:
  US13/198,546
• Publication Number:
  US 20110283998A1
• Time in Patent Office: 285 Days
• Field of Search: 606/108, 606191-192, 606/190, 623/23.64, 623/23.65, 623/23.68, 128/207.14, 128/207.15, 128/205.19, 128/200.24
• US Class Current: 606/191
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/1204 temporary occlusion
• CPC Class Codes: A61B 17/12104 in an air passage
• CPC Class Codes: A61B 17/12159 Solid plugs; being solid before insertion
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61F 2002/043 Bronchi

Abstract

An intra-bronchial device may be placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes an obstructing member that prevents air from being inhaled into the lung portion, and an anchor that anchors the obstruction device within the air passageway. The anchor may piercingly engage the air passageway wall. The anchor may be releasable from the air passageway for removal of the obstructing member. The anchor may be releasable by collapsing a portion of the obstructing member, or by drawing the obstructing member toward the larynx. The obstructing member may be a one-way valve.

Claims

1. An air passageway device, the device comprising:

an obstructing member having a distal end and a proximal end, the obstructing member comprises a support assembly having a plurality of support members, the plurality of support members extending in a proximal direction from the distal end;

a resilient membrane coupled to the support members and when deployed in an air passageway the resilient membrane is dimensioned to communicate with a portion of a lung to preclude air from being inhaled and to allow air to be exhaled;

the air passageway device further comprising at least one anchor that anchors said obstructing member when said anchor is deployed, the at least one anchor positioned distal to the distal end of the obstructing member;

the plurality of support members comprising proximal tips that are curved toward an axial center of the obstructing member, the plurality of support members curved between the distal end and the proximal tips to form a concave side and convex side, wherein the concave side faces the axial center of the obstructing member and the convex side faces a wall of the air passageway; and

the air passageway device configured to be collapsible for insertion into a delivery catheter and to expand upon deployment from the delivery catheter.

2. The air passageway device of claim 1, wherein said at least one anchor is releasable for removal of said air passageway device.

3. The air passageway device of claim 1, wherein said obstructing member forms a one-way valve when deployed.

4. The air passageway device of claim 1, wherein a portion of said obstructing member is collapsible.

5. The air passageway device of claim 1, wherein the at least one anchor is configured to pierce into the wall of the air passageway.

6. The air passageway device of claim 1, wherein the obstructing member and the at least one anchor are configured to be simultaneously deployable.

7. The air passageway device of claim 1, wherein the at least one anchor is releasable from the air passageway for removal of the obstructing member by collapsing a portion of the obstructing member.

8. The air passageway device of claim 1, wherein the at least one anchor is releasable from the air passageway for removal of the obstructing member by drawing the obstructing member proximally.

9. The air passageway device of claim 1, wherein the at least one anchor includes a resilient material for imparting a force against the air passageway to deform the air passageway to more positively anchor the obstructing member.

10. The air passageway device of claim 1, wherein the at least one anchor comprises material having memory of an original shape, and resiliency to return the material to that shape.

11. The air passageway device of claim 1, wherein the obstructing member comprises material having memory of an original shape, and resiliency to return the material to that shape.

12. The air passageway device of claim 1, wherein the obstructing member forms a substantially parabolic curve.

13. The air passageway device of claim 1, further comprising a plurality of anchors.

14. The air passageway device of claim 13, wherein the plurality of anchors are positioned proximal to the proximal end of the obstructing member, the plurality of anchors comprises a first, a second, a third, and a fourth anchor, the first and second anchors coupled to a first retracting member having a first apex, the third and fourth anchors coupled to a second retracting member having a second apex, wherein the first and second apexes are arranged opposite each other and partially overlap, wherein increasing the distance between the first and second apexes retracts the plurality of anchors.

15. The air passageway device of claim 1, further comprising a central support structure configured to support the at least one anchor.

16. The air passageway device of claim 15, wherein the at least one anchor forms a substantially right angle with the central support structure.

17. The air passageway device of claim 1, further comprising a central support structure configured to support the obstructing member.

18. The air passageway device of claim 17, wherein the central support structure extends through the obstructing member and is arranged for engaging a removal device.

19. The air passageway device of claim 1, wherein said air passageway device is configured to permit mucus transport past said obstructing member.

20. The air passageway device of claim 1, wherein the at least one anchor comprise a stop structure to limit piercing of the wall of the air passageway.