GUIDE WIRE WITH EMBOLIC FILTERING ATTACHMENT

• US 20110029008A1
• Filed: 10/13/2010
• Published: 02/03/2011
• Est. Priority Date: 09/30/2002
• Status: Active Grant

• Current Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Original Assignee: Advanced Cardiovascular Systems Incorporated (Abbott Laboratories)
• Inventors: Papp, John E., Cornish, Wayne E., Huter, Scott J., Huter, Benjamin C., Gesswein, Douglas H.
• Granted Patent: US 8,029,530 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• 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 2230/008 paraboloidal

Abstract

A separate deliverable embolic protection device filter that attaches to a helical coil at a distal end of a conventional guide, for use in a blood vessel when an interventional procedure is being performed to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filter assembly with a proximal end and a distal end, and a guide wire connector attached to the distal end of the filter assembly. The guide wire connector is able to couple with the helical coil of the guide wire. A restraining sheath placed over the filter assembly in a coaxial arrangement maintains the filter assembly in a collapsed position and delivers the filter assembly separately to the helical coil of the guide wire, and then the guide wire connector is joined to the helical coil. Alternatively, the guide wire can include a rotatable coil section forming a portion of the distal tip coil on the guide wire which is adapted to be coupled to the filter assembly. This arrangement allows the filter assembly to be rotatably mounted onto the guide wire.

Claims

1-28. -28. (canceled)

29. An apparatus for embolic protection, comprising:

a guide wire having a tip coil disposed on a distal end, said tip coil having a rotating coil section rotatably mounted on the guide wire; and

a filter assembly disposed for traveling along the guide wire, the filter assembly including a first end and a second end, and a guide wire connector disposed on one of the ends of the filter assembly, said guide wire connector coupled to said rotating coil section.

30. The apparatus of claim 29, wherein the guide wire connector includes a connection coil.

31. The apparatus of claim 29, wherein the guide wire connector includes a spring-loaded tab.

32. The apparatus of claim 29, wherein the filter assembly includes a plurality of self-expanding struts disposed between the first and second ends.

33. The apparatus of claim 29, wherein the rotating coil section of the coil tip is disposed between a proximal coil section and a distal coil section which are fixed to the guide wire.

34. The apparatus of claim 33, wherein the rotating coil section of the coil tip has an outer diameter which is greater than the outer diameter of the proximal coil section.

43. The apparatus of claim 29, wherein the guide wire connector is attached to the first end of the filter assembly.

44. The apparatus of claim 29, wherein the guide wire connector is attached to the second end of the filter assembly.

35. An apparatus for embolic protection, comprising:

a guide wire having a tip coil disposed on a distal end, said tip coil having a rotating coil section rotatably mounted on the guide wire; and

a filter assembly including a proximal end and a distal end, one of said proximal and distal ends being coupled to the rotating coil section.

36. The apparatus of claim 35, wherein the rotating coil section of the coil tip is disposed between a proximal coil section and a distal coil section which are fixed to the guide wire.

42. The apparatus of claim 35, wherein the distal end of the filter assembly is coupled to the rotating coil section of the tip coil.

37-41. -41. (canceled)

45. An apparatus for embolic protection, comprising:

a guide wire having a rotating section rotatable mounted on the guide wire; and

a filter assembly including a proximal end and a distal end;

wherein one end of the filter assembly is coupled to the rotating section of the guide wire.

46. The apparatus of claim 45, wherein the guide wire connector includes a connection coil.

47. The apparatus of claim 45, wherein the guide wire connector includes a spring-loaded tab.