Method of accessing the left common carotid artery

• US 8,876,796 B2
• Filed: 12/28/2011
• Issued: 11/04/2014
• Est. Priority Date: 12/30/2010
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Claret Medical, Inc. (Boston Scientific Corporation)
• Inventors: Fifer, Daniel W., Lashinski, Randall T., Fields, Antony J., Lee, Michael
• Primary Examiner(s): MASHACK, MARK F
• Application Number:
  US13/338,966
• Publication Number:
  US 20120172918A1
• Time in Patent Office: 1,042 Days
• Field of Search: 606/200, 606/146, 606149-150, 604523-525, 604/528, 604530-532, 604/95.04
• US Class Current: 604/528
• CPC Class Codes: A61B 17/22031 Gripping instruments, e.g. forceps, for removing or smashing calculi A61B17/221 takes precedence
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/012 Multiple filtering units
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• 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 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2230/0093 Umbrella-shaped, e.g. mushroom-shaped
• CPC Class Codes: A61F 2250/0029 differing in bending or flexure capacity

Abstract

Single filter and multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a blood filtering system captures and removes particulates dislodged or generated during a surgical procedure and circulating in a patient'"'"'s vasculature. In some embodiments a filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.

Claims

1. A method of accessing the left common carotid artery, comprising the steps of:

advancing a catheter through the brachiocephalic artery and into the aorta;

articulating a first section of the catheter in a first direction away from the left common carotid by retracting a pull wire;

articulating a second section of the catheter in a second direction toward the left common carotid by retracting the pull wire and continuing to articulate the second section after the first section stops deflecting by continuing to retract the pull wire; and

advancing a distal portion of the catheter into the left common carotid.

2. The method of accessing the left common carotid artery as in claim 1, wherein the advancing step comprises axially distally advancing an inner sleeve from a proximal portion of the catheter.

3. The method of accessing the left common carotid artery as in claim 2, further comprising the step of deploying a first filter in the left common carotid.

4. The method of accessing the left common carotid artery as in claim 3, further comprising the step of deploying a second filter in the brachiocephalic artery.

5. The method of accessing the left common carotid artery as in claim 4, wherein the step of deploying the second filter is accomplished prior to the step of deploying the first filter.

6. The method of accessing the left common carotid artery as in claim 1, wherein the first section is deflected to form a first concave curve and the second section is deflected to form a second concave curve that curves in an opposite direction than the first section.