Invention Grant
- Patent Title: Filter apparatus for ostium of left atrial appendage
- Patent Title (中): 左心耳口滤器
-
Application No.: US10656647Application Date: 2003-09-04
-
Publication No.: US08685055B2Publication Date: 2014-04-01
- Inventor: Robert A VanTassel , Robert G Hauser , Robert Schwartz , David Holmes , Gregg S Sutton , Thomas E Borillo , Jeffrey Welch
- Applicant: Robert A VanTassel , Robert G Hauser , Robert Schwartz , David Holmes , Gregg S Sutton , Thomas E Borillo , Jeffrey Welch
- Applicant Address: US MN Plymouth
- Assignee: Atritech, Inc.
- Current Assignee: Atritech, Inc.
- Current Assignee Address: US MN Plymouth
- Agency: Seager, Tufte & Wickhem LLC
- Main IPC: A61M29/00
- IPC: A61M29/00

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.
Public/Granted literature
- US20040122467A1 Filter apparatus for ostium of left atrial appendage Public/Granted day:2004-06-24
Information query