US 12,226,564 B1
Method and apparatus for catheter-based extracorporeal membrane oxygenation (ECMO)
Tim A. Fischell, Kalamazoo, MI (US); Frank Saltiel, San Jose, CA (US); and Jeffrey Payne, Temecula, CA (US)
Assigned to Vantis Vascular, Inc., San Jose, CA (US)
Filed by Vantis Vascular, Inc., San Jose, CA (US)
Filed on Apr. 22, 2024, as Appl. No. 18/642,779.
Application 18/642,779 is a continuation in part of application No. 18/484,398, filed on Oct. 10, 2023, granted, now 11,964,091.
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/36 (2006.01)
CPC A61M 1/3659 (2014.02) [A61M 2205/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for performing transseptal extracorporeal membrane oxygenation (ECMO) on a patient, the method comprising:
advancing a first inner catheter through a transseptal puncture;
deflecting the first inner catheter within the left atrium so that a distal tip of the first inner catheter is disposed substantially toward a mitral valve;
advancing the first inner catheter through the mitral valve;
deflecting the distal tip of the first inner catheter toward an aortic valve;
advancing the first inner catheter through the aortic valve so that a distal end of a second inner catheter is in an ascending aorta;
advancing the second inner catheter distally over the first inner catheter, wherein the second inner catheter is coaxial with and surrounds the first inner catheter;
withdrawing the first inner catheter; and
receiving, from the patient, oxygen-poor blood through an outer catheter and returning oxygenated blood through the second inner catheter to the ascending aortic arch.