Implantable lumen prosthesis

• US 6,585,756 B1
• Filed: 05/14/1999
• Issued: 07/01/2003
• Est. Priority Date: 05/14/1999
• Status: Active Grant

• Current Assignee: Ernst P. Strecker
• Original Assignee: Ernst P. Strecker
• Inventors: Strecker, Ernst P.
• Primary Examiner(s): SNOW, BRUCE EDWARD
• Application Number:
  US09/311,965
• Time in Patent Office: 1,509 Days
• Field of Search: 623/1.13, 623/1.15, 623/1.16, 623/1.27, 623/1.35, 623/1.36, 606/200
• US Class Current: 623/1.16
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2/0105 Open ended, i.e. legs gathered only at one side
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• 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 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching

Abstract

The present invention relates to an implantable prosthesis having a membrane and a fluid channel that are inserted into a body lumen to maintain fluid flow and support the lumen wall. A preferred embodiment of the invention includes a mesh membrane or filter attached to a covered stent. The membrane can be mounted on a frame formed with a shape memory material that can be delivered through a catheter into a body lumen. The membrane and the frame can expand from a delivery state into an expanded state.

Claims

1. A prosthetic device comprising:

a frame comprising a plurality of struts extending radially outward and a membrane extending over the plurality of struts, the frame having a perimeter;

at least one stent having a lumen therethrough, the at least one stent having a proximal end and a distal end, the proximal end of the at least one stent connected to an opening in the membrane;

a securing element located proximally of the frame, the securing element having at least one point of attachment to the frame at a location spaced away from the perimeter of the frame.

2. The prosthetic device of claim 1 wherein the frame and the membrane have a delivery position and an expanded position.

3. The prosthetic device of claim 2 wherein the delivery position has a diameter of 12 French or less.

4. The prosthetic device of claim 1 wherein the frame further comprises a shape memory material.

5. The prosthetic device of claim 1 wherein the plurality of struts further comprise a plurality of loop shapes.

6. The prosthetic device of claim 1 wherein the membrane further comprises a mesh.

7. The prosthetic device of claim 1 wherein the membrane further comprises a non-permeable material.

8. The prosthetic device of claim 1 wherein the membrane extends beyond the perimeter formed by the plurality of struts.

9. The prosthetic device of claim 1 wherein the at least one stent further comprises a flexible shape memory material.

10. The prosthetic device of claim 1 wherein the stent further comprises a mesh material.

11. The prosthetic device of claim 1 wherein the proximal end of the stent further comprises a taper.

12. The prosthetic device of claim 11 wherein the taper of the stent decreases to a diameter at the proximal end by a range of 5%-15%.

13. The prosthetic device of claim 1 wherein the securing element further comprises a plurality of anchors.

14. The prosthetic device of claim 1 wherein the securing element further comprises a shape memory material.