Multi-Wall Expandable Device Capable Of Drug Delivery Related Applications

• US 20080140172A1
• Filed: 12/09/2005
• Published: 06/12/2008
• Est. Priority Date: 12/13/2004
• Status: Abandoned Application

• Current Assignee: Robert Hunt Carpenter, Robert Owens Carpenter
• Original Assignee: Robert Hunt Carpenter, Robert Owens Carpenter
• Inventors: Carpenter, Robert Owens, Carpenter, Robert Hunt
• Application Number:
  US11/667,145
• Publication Number:
  US 20080140172A1
• Time in Patent Office: Days
• US Class Current: 623/1.2
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/844 folded prior to deployment
• CPC Class Codes: A61F 2/852 Two or more distinct overlapping stents
• 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 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• 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 2220/0091 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body

Abstract

A multi-wall expandable device (40) that optionally can have at least one material (46) between, Outside, or inside m the walls (43, 44) of the device. The sheet of material can be solid, perforated, or strands. Alternatively, individual strand or strands (47) of material may be woven through structural segments of the multi-wall expandable device. The sheet or sheets of material, strand, or strands can be used as a reservoir for any substance to be delivered, such as a drug, a supplement, a mineral or biological materials such as stem cells or a combination thereof. Additionally, the device is designed with the length of the device capable of being opened and closed to facilitate placement surrounding the treated structure to form a splint to offer support, protection, facilitate healing and deliver drugs or biological materials to the treated structure. This capability of being openable and closable can be accomplished with the use of latches, hinges, or memory metals such as nitinol.

Claims

1. A multi-wall expandable device comprising:

a plurality of radially expandable tubular members, each tubular member axially extending along a longitudinal axis of the multi-wall expandable device, and each tubular member having first and second opposing ends, wherein adjacent tubular members are connected at least at one end to form a seamless joint.

2. The multi-wall expandable device of claim 1, wherein the tubular members are solid materials, perforated materials, strands, or a combination thereof.

3. The multi-wall expandable device of claim 1, wherein the seamless joint comprises a folding.

4. The multi-wall expandable device of claim 1, wherein the tubular members are made of stainless steel, nitinol, titanium, tantalum, cobalt-based alloys, bioresorbable materials, ceramics, plastics, composites, or polymers.

5. The multi-wall expandable device of claim 1, further comprising a therapeutic-delivery material on the outside of the multi-wall expandable device or interdisposed between woven tubular members.

6. The multi-wall expandable device of claim 5, wherein the therapeutic-delivery material is cable of delivering an anticoagulant, an anti-inflammatory agent, an anti-platelet, an anti-angiogenic agent, a fibrinolytic agent, a cell, a stem cell, a protein, an DNA, or a combination thereof.

7. The multi-wall expandable device of claim 5, wherein the therapeutic-delivery material is in the form of a film, a woven material, or a combination thereof.

8. A multi-wall expandable device comprising:

at least two radially expandable tubular members, each tubular member axially extending along a longitudinal axis of the multi-wall expandable device, and each tubular member having first and second opposing ends, wherein the two tubular members are connected at least at one end to form a seamless joint, and the two tubular members are openable and closable along the longitudinal axis of the multi-wall expandable device via a latch, a hinge, or a memory metal.

9. The multi-wall expandable device of claim 8, wherein the tubular members are solid materials, perforated materials, strands, or a combination thereof.

10. The multi-wall expandable device of claim 8, wherein the seamless joint comprises a folding.

11. The multi-wall expandable device of claim 8, wherein the tubular members are made of stainless steel, nitinol, titanium, tantalum, cobalt-based alloys, bioresorbable materials, ceramics, plastics, composites, or polymers.

12. The multi-wall expandable device of claim 8, further comprising a therapeutic-delivery material on the outside of the multi-wall expandable device or interdisposed between tubular members.

13. The multi-wall expandable device of claim 12, wherein the therapeutic-delivery material is cable of delivering an anticoagulant, an anti-inflammatory agent, an anti-platelet, an anti-angiogenic agent, a fibrinolytic agent, a protein, an DNA, or a combination thereof.

14. The multi-wall expandable device of claim 10, wherein the therapeutic-delivery material is in the form of a film, a woven material, or a combination thereof.

18. The double-wall expandable device of claim 13, wherein the tubular members are made of stainless steel, nitinol, titanium, tantalum, cobalt-based alloys, bioresorbable materials, ceramics, plastics, composites, or polymers.

19. The double-wall expandable device of claim 13, further comprising an therapeutic-delivery material on the outside of the multi-wall expandable device or interdisposed between woven tubular members.

20. The double-wall expandable device of claim 19, wherein the therapeutic-delivery material is cable of delivering an anticoagulant, an anti-inflammatory agent, an anti-platelet, an anti-angiogenic agent, a fibrinolytic agent, a cell, a stem cell, a protein, an DNA, or a combination thereof.

21. The double-wall expandable device of claim 20, wherein the therapeutic-delivery material is in the form of a film, a woven material, or a combination thereof.

15. A double-wall expandable device comprising:

one inner and one outer radially expandable tubular members, the inner and the outer tubular member axially extending about a longitudinal axis of the double-wall expandable device, and each inner and outer tubular member having first and second opposing ends, wherein the two tubular members are connected at least at one end to form a seamless joint.

16. The multi-wall expandable device of claim 15, wherein the tubular members are solid materials, perforated materials, strands, or a combination thereof.

17. The double-wall expandable device of claim 15, wherein the seamless joint comprises a folding.

22. A multi-wall expandable device comprising:

one inner and one outer radially expandable tubular members, the inner and the outer tubular member axially extending about a longitudinal axis of the multi-wall expandable device, and each inner and outer tubular member having first and second opposing ends.

23. The multi-wall expandable device of claim 22, wherein the tubular members are solid materials, perforated materials, strands, or a combination thereof.

24. The multi-wall expandable device of claim 22, wherein the tubular members are made of stainless steel, nitinol, titanium, tantalum, cobalt-based alloys, bioresorbable materials, ceramics, plastics, composites, or polymers.

25. The multi-wall expandable device of claim 22, further comprising an therapeutic-delivery material on the outside of the multi-wall expandable device or interdisposed between woven tubular members.

26. The multi-wall expandable device of claim 25, wherein the therapeutic-delivery material is cable of delivering an anticoagulant, an anti-inflammatory agent, an anti-platelet, an anti-angiogenic agent, a fibrinolytic agent, a cell, a stem cell, a protein, an DNA, or a combination thereof.

27. The multi-wall expandable device of claim 25, wherein the therapeutic-delivery material is in the form of a film, a woven material, or a combination thereof.