The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Sep. 04, 2003
Robert a Vantassel, Excelsior, MN (US);
Robert G Hauser, Long Lake, MN (US);
Robert Schwartz, Rochester, MN (US);
David Holmes, Rochester, MN (US);
Gregg S Sutton, Maple Grove, MN (US);
Thomas E Borillo, Plymouth, MN (US);
Jeffrey Welch, New Hope, MN (US);
Robert A VanTassel, Excelsior, MN (US);
Robert G Hauser, Long Lake, MN (US);
Robert Schwartz, Rochester, MN (US);
David Holmes, Rochester, MN (US);
Gregg S Sutton, Maple Grove, MN (US);
Thomas E Borillo, Plymouth, MN (US);
Jeffrey Welch, New Hope, MN (US);
Atritech, Inc., Plymouth, MN (US);
Abstract
Apparatus for permanent placement across an ostium of a left atrial appendage in a patient, which includes a filtering membrane configured to extend across the ostium of the left atrial appendage. The filtering membrane has a permeable structure which allows blood to flow through but substantially inhibits thrombus from passing therethrough. The apparatus also includes a support structure attached to the filtering membrane which retains the filtering membrane in position across the ostium of the left atrial appendage by permanently engaging a portion of the interior wall of the left atrial appendage. The support structure may be radially expandable from a first configuration to a second configuration which engages the ostium or the interior wall of the left atrial appendage. The filtering membrane may define an opening therethrough that is configured to expand from a first size which inhibits the passage of thrombus therethrough to a second size which allows an interventional device, e.g., an expansion balloon, to pass therethrough, and wherein the opening is resiliently biased towards the first size.