Devices and methods for treatment of vascular aneurysms

• US 8,936,633 B2
• Filed: 11/22/2013
• Issued: 01/20/2015
• Est. Priority Date: 11/26/2001
• Status: Active Grant

• Current Assignee: Endologix
• Original Assignee: Thomas J. Fogarty
• Inventors: Kim, Steven W., Shiu, Brian K.
• Primary Examiner(s): SEVERSON, RYAN J
• Application Number:
  US14/087,980
• Publication Number:
  US 20140081374A1
• Time in Patent Office: 424 Days
• Field of Search: 606/200, 623/1.15, 623/1.25, 623/1.36
• US Class Current: 623/1.11
• 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 17/12036 partial occlusion
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 17/1219 expandable in contact with liquids
• CPC Class Codes: A61B 17/12195 comprising a curable material
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2017/00986 Malecots, e.g. slotted tubes, of which the distal end is pulled to deflect side struts
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/077 having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

The present invention relates to devices and methods for the treatment of diseases in the vasculature, and more specifically, devices and methods for treatment of aneurysms found in blood vessels. In a first embodiment of the present invention, a two part prostheses, where one part is an expandable sponge structure and the other part is an expandable tubular mesh structure, is provided. In the first embodiment, the expandable sponge structure is intended to fill the aneurysm cavity to prevent further dilatation of the vessel wall by creating a buffer or barrier between the pressurized pulsating blood flow and the thinning vessel wall. In the first embodiment, the expandable tubular mesh structure is placed across the aneurysm, contacting the inner wall of healthy vessel proximal and distal to the aneurysm.

Claims

1. A delivery system for treating an aneurysm comprising:

a conduit having a longitudinal axis, wherein the conduit is configured to deliver a medium, wherein the conduit is configured to deploy the medium as the medium exits the conduit in a direction perpendicular to at least a portion of the length of the longitudinal axis of the conduit;

an inflatable chamber comprising a radially inner wall and a radially outer wall, wherein the radially inner wail defines a longitudinal channel configured to allow the flow of fluid through the system when the system is in a deployed configuration, and wherein the inflatable chamber defines an inflation volume, and wherein the conduit is in fluid communication with the inflation volume.

2. The system of claim 1, further comprising a dispenser coupled to the proximal end of the conduit, wherein the dispenser is configured to push the medium through a distal end of the conduit.

3. The system of claim 2, where the dispenser comprises a plunger.

4. The system of claim 1, further comprising a graft radially inside of the radially inner wall of the chamber.

5. The system of claim 1, further comprising a chamber access port configured to couple the conduit and the inflatable chamber.

6. The system of claim 1, wherein the conduit extends a length into the inflatable chamber.

7. The system of claim 1, wherein the medium is expandable.

8. The system of claim 1, wherein the conduit comprises an anchor configured to anchor the conduit to the inflatable chamber.

9. The system of claim 1, wherein the conduit is porous.

10. The system of claim 1, wherein the conduit extends through the inflatable chamber at a proximal, longitudinal end.

11. A method for treatment of an aneurysm in a blood vessel in a body comprising:

delivering, a medium through a channel to a chamber of an inflatable structure, wherein the channel has a longitudinal axis, wherein the channel is coupled to a delivery catheter and the chamber of the inflatable structure, wherein the flow of the medium as the medium exits the conduit into the chamber of the inflatable structure is perpendicular to at least a length of the longitudinal axis of the channel, wherein the inflatable structure has an inner wall and an outer wall, and wherein the inner wall defines a lumen when the inflatable structure is in a deployed configuration, and the outer wall is positioned in the aneurysm sac when the inflatable structure is in a deployed configuration; and

detaching the channel from the chamber of the inflatable structure.

12. The method of claim 11, further comprising removing the channel and the delivery catheter from the body.

13. The method of claim 11, wherein the inflatable structure is a balloon.

14. The method of claim 11, wherein the channel extends a length into the chamber.

15. The method of claim 11, wherein the medium is expandable.

16. The method of claim 11, wherein the channel extends through the chamber at a proximal, longitudinal end.

17. A delivery system for treating an aneurysm comprising:

a balloon, wherein the balloon has a balloon longitudinal channel through the balloon and wherein the balloon longitudinal channel is configured to allow the flow of blood to pass through the balloon longitudinal channel;

a graft;

a conduit removably attached to the balloon, wherein the conduit is in fluid communication with the balloon, wherein the conduit is outside of the graft, and wherein the conduit has multiple pores; and

a communication port, wherein the communication port is coupled to the balloon a the conduit.

18. The system of claim 17, wherein the graft is radially inside the balloon.

19. The system of claim 17, wherein the graft has a graft longitudinal channel, and wherein the graft longitudinal channel is coincidental with the balloon longitudinal channel.

20. The system of claim 17, wherein the conduit comprises a conduit tip, and wherein the conduit tip comprises a basket structure.