Aneurysm neck obstruction device

• US 20030181927A1
• Filed: 02/25/2003
• Published: 09/25/2003
• Est. Priority Date: 06/21/2001
• Status: Abandoned Application

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Inventors: Wallace, Michael P.
• Application Number:
  US10/374,520
• Publication Number:
  US 20030181927A1
• Time in Patent Office: Days
• US Class Current: 606/151
• 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 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/12063 electrolytically detachable

Abstract

An implantable medical device for at least partially closing a portion of a vascular aneurysm is disclosed. The treatment device includes a neck bridge having a delivery configuration and a deployed configuration. The device also includes an actuation mechanism configured to be temporarily engaged to the neck bridge to convert the neck bridge between the delivery configuration and the deployed configuration.

Claims

1. An aneurysm treatment device for at least partially closing a portion of a vascular aneurysm, comprising:

a neck bridge having a delivery configuration and a deployed configuration;

an actuation mechanism configured to be temporarily engaged to the neck bridge to convert the neck bridge between the delivery configuration and the deployed configuration.

2. The aneurysm treatment device of claim 1, further comprising an aperture formed in a distal end of the neck bridge, wherein the actuation mechanism is further configured to frictionally engage at least a portion of a surface forming the aperture.

3. The aneurysm treatment device of claim 2, wherein the actuation mechanism comprises a ball member situated proximate a distal end of an elongated member, the ball member being configured to frictionally engage said portion of the surface forming the aperture.

4. The aneurysm treatment device of claim 2, wherein the actuation mechanism comprises an elongated member having a tapered end configured to frictionally engage said portion of the surface forming the aperture.

5. The device of claim 1, wherein the neck bridge comprises a fabric-like material.

6. The device of claim 5, wherein a radio-opaque material is incorporated into the fabric-like material.

7. The device of claim 1, wherein when the actuation mechanism is engaged to the neck bridge, the actuation mechanism defines a lumen there through.

8. The device of claim 1, further comprising a proximal aperture and a distal aperture formed in the neck bridge.

9. The device of claim 8, wherein:

the proximal and distal apertures are spaced apart a first distance when the collapsible neck bridge is in the delivery configuration; and

the proximal and distal apertures are spaced apart a second distance that is less than the first distance when the collapsible neck bridge is in the deployed configuration.

10. The device of claim 1, wherein the neck bridge in the deployed configuration takes the form of a double-layered occlusion member.

11. The device of claim 10, wherein the double-layered occlusion member is approximately disc-shaped and of a size and overall flexibility to lodge at the neck portion of the vascular aneurysm.

12. The device of claim 1, wherein the neck bridge in the delivery configuration is of a size and overall flexibility to be deliverable through a tubular delivery device.

13. The device of claim 1, further comprising an elongated delivery member having a distal end detachably connected to the neck bridge.

14. The device of claim 13, wherein the elongated delivery member is electrolytically detachable from the actuation mechanism.

15. The device of claim 1, the actuation mechanism further comprising a hollow interior that enables a treatment agent to be delivered through the actuation mechanism into the vascular aneurysm when the actuation mechanism is engaged to the neck bridge.

16. The device of claim 1, wherein the neck bridge is permeable to blood flow.

17. A method of treating an aneurysm in a parent vessel having a lumen, the aneurysm having a neck and inner wall defining a cavity that is in communication with the lumen, the method comprising:

providing a collapsible neck bridge configured to be temporarily engaged by an actuation mechanism;

endovascularly moving the collapsible neck bridge in a delivery configuration, wherein the actuation mechanism is engaged to the collapsible neck bridge, to a site proximate the aneurysm; and

disengaging the actuation mechanism from the collapsible neck bridge so as to covert the collapsible neck bridge from the delivery configuration to a deployed configuration.

18. The method of claim 17, wherein prior to disengaging, the method further comprises:

delivering a treatment agent through a hollow interior of the actuation mechanism.

19. A system for treating an aneurysm in a vessel, the aneurysm having an inner wall and a neck defining a cavity, the system comprising:

a treatment device;

an actuation mechanism; and

wherein

the treatment device comprises a collapsible neck bridge configured to be temporarily engaged by the actuation mechanism, the collapsible neck bridge being in a delivery configuration when the actuation mechanism is engaged thereto, and in a deployed configuration when the actuation mechanism is disengaged there from.

20. The system of claim 19, further comprising a hollow interior lumen formed within the actuation mechanism and configured to facilitate delivery of a treatment agent within the aneurysm.