Vascular Device For Use During An Interventional Procedure

• US 20110276120A1
• Filed: 07/15/2011
• Published: 11/10/2011
• Est. Priority Date: 11/07/1997
• Status: Active Grant

• Current Assignee: Salviac Ltd. (Abbott Laboratories Incorporated)
• Original Assignee: Salviac Ltd. (Abbott Laboratories Incorporated)
• Inventors: TAYLOR, Charles, VALE, David, GILSON, Paul, MAHER, Padraig, BRADY, Eamon
• Granted Patent: US 8,852,226 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61F 2/0108 Both ends closed, i.e. legs gathered at both ends
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2002/015 Stop means therefor
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2230/0093 Umbrella-shaped, e.g. mushroom-shaped
• CPC Class Codes: A61F 2230/0097 Harpoon-shaped

Abstract

A vascular device for use during an interventional procedure, the device having a stent structure having a collapsed configuration, an expanded configuration, a proximal end, and a distal end; and a delivery member for delivering the stent to a treatment site within a vasculature, wherein the proximal end of the stent structure is fixed to the delivery member when the stent structure is in the expanded configuration at the treatment site.

Claims

1. A vascular device for use during an interventional procedure, comprising:

a stent structure having a collapsed configuration, an expanded configuration, a proximal end, and a distal end; and

a delivery member for delivering the stent to a treatment site within a vasculature,

wherein the proximal end of the stent structure is fixed to the delivery member when the stent structure is in the expanded configuration at the treatment site.

2. The vascular device according to claim 1, wherein the stent structure comprises a longitudinally extending tubular shaped section of a substantially constant outside diameter between its proximal end and distal end.

3. The vascular device according to claim 1, wherein the proximal end of the stent structure tapers proximally radially inwardly to the delivery member.

4. The vascular device according to claim 1 wherein the proximal end of the stent structure comprises a pair of struts.

5. The vascular device according to claim 1, further comprising a flexible tip extending distally from the distal end of the stent structure.

6. The vascular device according to claim 1, wherein the stent structure is self-supporting.

7. The vascular device according to claim 6, wherein the stent structure is a shape memory stent structure.

8. The vascular device according to claim 1, wherein the delivery member has a length for extension from a location outside the vasculature to the treatment site within the vasculature.

9. The vascular device according to claim 1, wherein when the stent structure is in the expanded configuration, only the proximal end of the stent structure is fixed to the delivery member.

10. The vascular device according to claim 1, wherein the stent structure comprises a mesh.

11. The vascular device according to claim 10, wherein interconnecting portions of the mesh define a plurality of openings in the stent structure.

12. The vascular device according to claim 11, wherein the density of the mesh is variable along the stent structure.

13. The vascular device according to claim 12, wherein density of the mesh in the proximal end is lower than the density of the mesh in the tubular shaped section.

14. The vasculature device according to claim 1, wherein the device comprises a connecting member for fixing the proximal end of the stent structure to the delivery member.

15. The vascular device according to claim 14, wherein the connecting member comprises a pair of struts extending from the delivery member.

16. The vasculature device according to claim 1, wherein the stent structure tapers distally radially inwardly at its distal end.

17. The vasculature device according to claim 1, wherein the stent structure tapers distally radially inwardly to a tip extending distally from the distal end of the stent structure.

18. The vasculature device according to claim 17, wherein the tip is flexible relative to the stent structure to aid in atraumatic transport through the vasculature.

19. The vasculature device according to claim 1, wherein the delivery member is a catheter.

20. The vasculature device according to claim 1, wherein the delivery member is a guidewire.

21. The vascular device according to claim 1, wherein when the stent structure is expanded within the vasculature, proximally retracting the delivery member would proximally withdraw the stent structure.

22. A vascular device for use during an interventional procedure, comprising:

a flexible tube defined by a mesh structure and having a proximal end and a distal end,

the tube having a first configuration comprising a compressed diameter that permits intraluminal delivery of the tube through a vasculature and a second configuration comprising an expanded diameter for engaging the wall a vessel lumen at a treatment site; and

a delivery member connected to the proximal end of the tube,

the tube remains connected to the delivery member when the tube is in the second configuration.

23. The vascular device according to claim 22, wherein the mesh structure is expandable upon deployment to the second configuration through shape memory characteristics or elastic memory characteristics.

24. The vascular device according to claim 22, wherein the tube self-expands from the first configuration to the second configuration.

25. The vascular device according to claim 22, wherein when the tube is in the second configuration, the mesh defines a tubular shape of a substantially constant outside diameter extending longitudinally between the proximal end and the distal end of the tube.

26. The vasculature device according to claim 22, wherein the delivery member is a catheter.

27. The vasculature device according to claim 22, wherein the delivery member is a guidewire.

28. The vasculature device according to claim 22, wherein when the tube is in the second configuration and the tube is engaging at least a portion of the wall the vessel lumen at the treatment site, proximally withdrawing the delivery member will proximally withdraw the tube.

29. The vasculature device according to claim 22, further comprising a connecting member, the connecting member attaching the tube to the delivery member.

30. The vasculature device according to claim 29, wherein the connecting member comprises at least a pair of struts.

31. The vasculature device according to claim 22, wherein the mesh structure comprises a cut pattern.

32. The vasculature device according to claim 31, wherein the cut pattern comprises a pattern cut into a tube.

33. The vasculature device according to claim 31, wherein the cut pattern comprises a plurality of slots cut through the wall of the tube.

34. The vasculature device according to claim 22, wherein the mesh structure comprises a plurality of interconnected struts.

35. The vasculature device according to claim 34, wherein the plurality of interconnected struts defines a plurality of cells.