Distal protection mechanically attached filter cartridge

• US 20050033266A1
• Filed: 08/30/2004
• Published: 02/10/2005
• Est. Priority Date: 12/18/2001
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Hansen, James G., Hendrickson, Gary L.
• Granted Patent: US 7,001,407 B2
• Time in Patent Office: Days
• US Class Current: 604/523
• CPC Class Codes: A61F 2/0108 Both ends closed, i.e. legs gathered at both ends
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/008 paraboloidal

Abstract

Distal protection filter assembly and methods for coupling a filter to an elongate shaft. A filter assembly may include a tubular adaptor having a distal holding receptacle. The filter may include struts adapted and configured for being coupled to the holding receptacle.

Claims

1-25. -25. (cancelled)

26. a filtering device, comprising:

an elongate shaft;

a holding receptacle coupled to the shaft;

a filter including one or more struts that are disposed on the holding receptacle; and

a sleeve disposed over the holding receptacle and the struts.

27. The filtering device of claim 26, wherein the holding receptacle includes one or more grooves and wherein the struts are disposed within the grooves.

28. The filtering device of claim 26, further comprising a seal tube attached to the holding receptacle.

29. The filtering device of claim 28, further comprising one or more bearings disposed near the seal tube and the holding receptacle.

30. The filtering device of claim 26, wherein the one or more struts each have a flared end region.

31. A distal protection filter assembly, comprising:

an elongate guidewire;

a holding receptacle coupled to the guidewire;

a sleeve disposed over the holding receptacle; and

a filter, the filter including one or more struts that each have an end region disposed between the holding receptacle and the sleeve.

32. The distal protection filter assembly of claim 31, wherein the holding receptacle includes one or more grooves and wherein the one or more strut end regions are disposed within the grooves.

33. The distal protection filter assembly of claim 31, further comprising a seal tube attached to the holding receptacle.

34. The distal protection filter assembly of claim 33, further comprising one or more bearings disposed near the seal tube and the holding receptacle.

35. The distal protection filter assembly of claim 31, wherein the one or more struts each have a flared end disposed near the end region.

36. A filtering device, comprising:

a guidewire;

a tubular adaptor coupled to the guidewire, the adaptor having a proximal end, a distal end, a lumen extending therethrough, and a holding receptacle disposed near the distal end;

a distal protection filter coupled to the adaptor, the filter including a plurality of struts that each have an end region disposed on the holding receptacle; and

a cap disposed over the end regions of the struts.

37. The filtering device of claim 36, wherein the holding receptacle includes a plurality of grooves.

38. The filtering device of claim 37, wherein the end regions of the struts are disposed in the grooves.

39. A distal protection filter assembly, comprising:

an elongate guidewire;

a holding receptacle coupled to the guidewire;

a sleeve disposed over the holding receptacle; and

a filter, the filter including one or more struts that each include an end region that is mechanically locked to the holding receptacle.

40. The distal protection filter assembly of claim 39, wherein the end regions of the one or more struts are disposed between the holding receptacle and the sleeve.

41. The distal protection filter assembly of claim 39, wherein the holding receptacle includes a plurality of grooves.

42. The distal protection filter assembly of claim 41, wherein the end regions of the struts are disposed in the grooves.