Prosthesis fixation device and method

• US 20060116754A1
• Filed: 11/30/2004
• Published: 06/01/2006
• Est. Priority Date: 11/30/2004
• Status: Active Grant

• Current Assignee: Lifeshield Sciences LLC (Acacia Research Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: DiMatteo, Kristian, Thistle, Robert
• Granted Patent: US 8,048,144 B2
• Time in Patent Office: Days
• US Class Current: 623/1.360
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 2017/1107 for blood vessels
• 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends

Abstract

A prosthesis anchor is adapted to convert a previously untreatable anatomy into a more typical and treatable condition. Preferably, the anchor is adapted to be transported endoluminally to a deployment site in a body lumen. The anchor includes a landing section for securing the anchor at a relatively fixed position in the lumen, and a docking section adapted to receive a mating prosthesis the landing section of the anchor may be permanently affixed to the lumen by a variety of mechanical and/or adhesive fixation means.

Claims

1. A prosthesis anchor, said anchor comprising:

a landing section adapted to be secured at a fixed position in a body lumen; and

a docking section adapted to receive a mating prosthesis extending into said anchor through one end thereof.

2. The prosthesis anchor of claim 1 wherein said landing section comprises a section of said anchor adapted to be affixed to said lumen with a permanent fixation.

3. The prosthesis anchor of claim 2, wherein said permanent fixation comprises a double flat head fastener with a shaft adapted to penetrate the landing section and a wall of an adjacent lumen with a flat head on each end of the shaft.

4. The prosthesis anchor of claim 2 wherein said permanent fixation comprises at least one staple.

5. The prosthesis anchor of claim 2 wherein said permanent fixation comprises an adhesive.

6. The prosthesis anchor of claim 2 wherein said permanent fixation comprises at least one suture.

7. The prosthesis anchor of claim 1 wherein said docking section comprises an inner sealing ring to sealingly receive the mating prosthesis.

8. The prosthesis anchor of claim 7 wherein said inner sealing ring further comprises an expandable annulus.

9. The inner sealing ring of claim 8 wherein said expandable annulus is adapted to receive and to be expanded by an injectable solidifying material.

10. The prosthesis anchor of claim 1 wherein the landing section is adapted to be secured in the body lumen by an adhesive interface.

11. The prosthesis anchor of claim 1 wherein the docking section and the mating prosthesis include a mating hour glass configuration.

12. The prosthesis anchor of claim 1 wherein said docking section further comprises at least one barb adapted to secure said prosthesis in a lumen.

13. The prosthesis anchor of claim 1 wherein said docking section comprises an outer cylindrical wall adapted to contact the wall of a lumen in which it is adapted to be deployed, and further comprises a plurality of barbs on said outer wall facing outwardly, at least two of said plurality of barbs being angularly disposed with respect to the axis of the sidewall of the anchor and pointed in opposite circumferential directions.

14. The prosthesis anchor of claim 1 in combination with a mating prosthesis.

15. The prosthesis anchor and mating prosthesis combination of claim 14, adapted to delivered and deployed endoluminally.

16. The prosthesis anchor and mating prosthesis combination of claim 14, adapted to be placed in an abdominal aorta below the renal arteries.

17. The prosthesis anchor and mating prosthesis combination of claim 14, wherein each of said anchor and said prosthesis have a compressed configuration in which they are adapted to be loaded in a catheter for endoluminal deployment to a deployment site and an expanded configuration, wherein said anchor and said prosthesis are adapted to be converted from said compressed configuration to said expanded configuration upon deployment to said deployment site.

18. A method of securing a prosthesis at a deployment site providing a combination as recited in claim 17 and first deploying said anchor to the deployment site and fastening the anchor to a lumen wall at the deployment site, then deploying the prosthesis and securing it to the anchor.