Cartridge embolic protection filter and methods of use

• US 20060089665A1
• Filed: 12/08/2005
• Published: 04/27/2006
• Est. Priority Date: 05/23/2002
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Hansen, James G., Eskuri, Alan
• Granted Patent: US 7,857,826 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2002/015 Stop means therefor
• 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 2230/0076 ellipsoidal or ovoid

Abstract

An embolic protection filter having a reduced profile for placement within a body lumen is disclosed. An embolic protection filter in accordance with the present invention includes a filter frame slidably and rotationally disposed along a guidewire, a plurality of retaining collars coupled to a proximal end of the filter frame, a plurality of expandable struts each having a proximal section adapted to slide within a corresponding retaining collar, and a filter mesh coupled to a distal section of the expandable struts for filtering embolic debris.

Claims

1. An embolic protection filter comprising:

a filter frame slidably and rotationally disposed along an elongate member, said filter frame having a proximal end and distal end;

a plurality of retaining collars coupled to the proximal end of said filter frame;

a plurality of expandable struts each having a proximal section and a distal section, the proximal section adapted to slide within the retaining collars, the distal section secured to the distal end of said filter frame, wherein, in use, said plurality of expandable struts are biased to radially expand from a collapsed, radially compact position to an open, radially expanded position; and

a filter mesh coupled to said plurality of expandable struts for filtering embolic material.