Intravascular blood filter

Patent metadata

Field	Value
Publication number	US-11364106-B2
Application number	US-202016934962-A
Country	US
Kind code	B2
Filing date	Jul 21, 2020
Priority date	Jan 16, 2009
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

Disclosed is a novel filter and delivery means. The device described within will not interfere with standard practice and tools used during standard surgical procedures and tools such as cannulas, clamps or dissection instruments including valve replacement sizing gages or other surgical procedures where the patient must be put on a heart-lung machine cross-clamping the aorta.

First claim

What is claimed:

1. A method of preventing foreign material from traveling into a carotid circulation, the method comprising:
advancing a first filter system through a right subclavian artery and into a brachiocephalic artery, the first filter system comprising a first guide catheter and a first filter;
advancing the first filter into a right common carotid artery;
expanding the first filter in the right common carotid artery;
advancing a second filter system through a left subclavian artery, the second filter system comprising a second guide catheter and a second filter;
advancing the second filter through an aorta and into a left common carotid artery; and
expanding the second filter in the left common carotid artery.

2. The method of claim 1 , wherein during the steps of advancing the first filter, the first filter is contained in a compact delivery configuration within the first guide catheter.

3. The method of claim 1 , wherein the first guide catheter has a first pre-shaped curve configured and adapted to direct a distal end of the first guide catheter toward an ostium of the right common carotid artery.

4. The method of claim 1 , wherein the first filter is mounted on a first guidewire.

5. The method of claim 1 , wherein during the steps of advancing the second filter, the second filter is contained in a compact delivery configuration within the second guide catheter.

6. The method of claim 1 , wherein the second guide catheter has a second pre-shaped curve configured and adapted to direct a distal end of the second guide catheter toward an ostium of the left common carotid artery.

7. The method of claim 1 , wherein the second filter is mounted on a second guidewire.

8. The method of claim 1 , wherein advancing the first filter system occurs independently from advancing the second filter system.

Assignees

• Boston Scient Scimed Inc

Inventors

• Lashinski Randall

Classifications

• A61F2/012 Primary

  Multiple filtering units · CPC title

• A61F2002/018

  made from tubes or sheets of material, e.g. by etching or laser-cutting · CPC title

• A61F2230/0067

  conical · CPC title

• A61F2230/0006

  circular · CPC title

• A61F2230/0069

  cylindrical · CPC title