Multiple-sided intraluminal medical device

• US 20010011187A1
• Filed: 03/12/2001
• Published: 08/02/2001
• Est. Priority Date: 06/02/1998
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Dusan Pavcnik, Frederick S. Keller, Josef Rosch, Thomas A. Osborne
• Inventors: Pavcnik, Dusan, Osborne, Thomas A., Keller, Frederick S., Rosch, Josef
• Granted Patent: US 6,508,833 B2
• Time in Patent Office: Days
• US Class Current: 623/1.2
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/8483 Barbs
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0095 Saddle-shaped

Abstract

A multiple-sided medical device comprises a closed frame of a single piece of wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.

Claims

1. A multiple-sided intraluminal medical device comprising:

a frame (11) having a closed circumference (62) with an a aperture (56) therethrough, said closed circumference having a plurality of sides (13), adjacent sides of said plurality of sides being interconnected by at least one bend (12), said frame having a plurality of configurations, a first configuration (35) of said frame being in a generally flat plane.

2. The device of

claim 1

wherein at least one of said sides and said bends includes a flexible material and wherein a second configuration (36) of said frame includes at least one pair of non-adjacent bends being closer together than in said first configuration.

3. The device of

claim 2

wherein a third configuration (37) of said frame includes at least selected ones of said sides generally beside each other.

4. The device of

claim 1

wherein said plurality of sides includes four sides.

5. The device of

claim 1

wherein said plurality of sides includes four sides of substantially equal length.

6. The device of

claim 1

wherein said plurality of sides includes at least a first pair of adjacent sides of a substantially first length, and a second pair of adjacent sides having a substantially second length different from said first length.

7. The device of

claim 1

further including at least one barb (16) extending from said frame.

8. The device of

claim 1

further including at least a second frame (31) connected to said first frame.

9. The device of

claim 1

wherein at least one of said bends comprises a coil (14).

10. The device of

claim 1

wherein at least one of said bends comprises a fillet (41).

11. The device of

claim 1

wherein at least one of said bends having a plurality of curves (63).

12. The device of

claim 1

further comprising a covering (45) attached to at least two of said plurality of sides.

13. A multiple-sided medical device comprising:

a frame (11) having a closed circumference (62) with an a aperture (56) therethrough, said closed circumference having a plurality of sides (13), wherein adjacent sides of said plurality of sides being interconnected by at least one bend (12), said frame having a plurality of configurations, a first configuration (35) of said frame being in a generally flat plane; and

a covering (45) attached to at least two of said plurality of sides.

14. The device of

claim 13

wherein said covering generally covers said aperture (56).

15. The device of

claim 14

wherein said covering further includes an opening (55) therethrough.

16. The device of

claim 15

further comprising a tubular member disposed within said opening.

17. The device of claim of 13 wherein said covering comprises a partial covering (58), said partial covering partially extending across said aperture when said frame is in said first configuration.

18. The device of

claim 17

wherein said plurality of sides includes four sides and said partial covering is generally triangular in shape, said partial covering extending over nearly half of aperture or greater.

19. The device of

claim 13

wherein said covering comprises a sleeve (64) attached to at least one said frame such that said at least one frame in said second configuration has an open lumen (65) therethrough.

20. A multiple-sided medical device comprising:

a frame (11) having a closed circumference (62) with an a aperture (56) therethrough, said closed circumference having a plurality of sides (13), adjacent sides of said plurality of sides being interconnected by at least one bend (12), said frame having a plurality of configurations, a first configuration (35) of said frame being in a generally flat plane; and

at least one barb (16) extending from said frame.

21. The device of

claim 20

further including a plurality of barbs (16).

22. The device of

claim 20

wherein said frame comprises a single piece (59) of material having a first (60) and a second end (61), at least one of said barbs (16) comprising at least one of said first and said second ends.

23. A multiple sided medical device comprising:

a frame (11) having a closed circumference (62) with an a aperture (56) therethrough, said closed circumference having a plurality of sides (13), wherein said plurality of sides includes four sides of substantially equal length, adjacent sides of said plurality of sides being interconnected by at least one bend (12) comprising a coil (14), said frame having a plurality of configurations, a first configuration (35) of said frame being in a generally flat plane, wherein a second configuration (36) of said frame includes at least one pair of non-adjacent bends being closer together than in said first configuration, wherein a third configuration (37) of said frame includes at least selected ones of said sides generally beside each other;

a plurality of barbs (16) extending from said frame wherein said frame comprises a single piece (59) of material having a first (60) and a second end (61), at least one of said barbs (16) comprising at least one of said first and said second ends; and

a covering (45) wherein said covering comprises a partial covering (58), said partial covering partially extending across said aperture when said frame is in said first configuration, said partial covering is generally triangular and extending over at least nearly half of said aperture.