Endovascular balloon graft

• US 20060206197A1
• Filed: 12/27/2003
• Published: 09/14/2006
• Est. Priority Date: 12/30/2002
• Status: Active Grant

• Current Assignee: Hesham Morsi
• Original Assignee: Hesham Morsi
• Inventors: Morsi, Hesham
• Granted Patent: US 7,468,072 B2
• Time in Patent Office: Days
• US Class Current: 623/1.250
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: Y10S 623/903 Blood vessel

Abstract

A method and apparatus for repair of stenotic and aneurysmic vessels utilizing in situ deployment of an inflatable tubular shaped device (1) having a longitudinally oriented annulus (17). When inflated, the size and rigidity of the device (1) is increased, thereby providing supplemental strength to the vessel wall and a lumen (8) for the passage of fluid.

Claims

1. A tubular shaped device comprising:

a. a first outer wall;

b. a second inner wall having a smaller diameter than the first outer wall;

c. a fused juncture of the first and second wall that creates fluid impermeable seals and fluid communicating passages within an interstitial space between the first and second wall;

d. a valve to convey fluid into the interstitial space.

2. The device of claim 1 further comprising a plurality of fused junctures of the first wall and the second wall in a selected orientation wherein at least one juncture is intersected by at least one passage capable of conveying fluid within the interstitial space.

3. The device of claim 2 wherein the selected orientation is substantially circumferential.

4. The device of claim 3 wherein the outer wall has a greater longitudinal length between each fused joint than the longitudinal length of the inner wall.

5. The device of claim 2 wherein the inner and outer walls are comprised of materials having differing elasticity.

6. The device of claim 2 wherein at least one wall is comprised of a material selected from a group consisting of polyethylene, polyurethane, TFE, PTFE, and ePTFE.

7. The device of claim 2 further comprising a fluid that can be communicated through the valve to fill the interstitial space.

8. The device of claim 7 further comprising a means for locating the tubular shaped device and inflating the device with the fluid within a blood vessel to form a lumen through which blood may be conveyed.

9. The device of claim 2 further comprising radially oriented web reinforcement within one or more fluid communicating chambers within the interstitial space of the inner and outer walls.

10. The device of claim 2 for treatment of aneurysms.

11. The device of claim 2 for treatment of atherosclerosis.

12. The device of claim 4 wherein after the interstitial space is filled with fluid, the outer wall forms a substantially corrugated surface and the inner wall forms a substantially smooth wall.

13. The device of claim 7 wherein the fluid is a curable composition.

14. A method for repair of vessel walls comprising the steps of:

a. inserting a sealable two walled tubular shaped device within the vessel lumen utilizing a catheter having a fluid conveying means in communication to a value assessing an interstitial space between the walls of the device;

b. maneuvering the device to a selected location within the vessel;

c. inserting fluid through a controllable value within the device and into interstitial space between the two walls of the device;

d. continuing the addition of fluid to deploy the device in a radial direction sufficient that the one wall contacts the vessel wall and an annular space is created along the longitudinal length of the device;

e. withdrawing the catheter.