Catheter-based extracorporeal membrane oxygenation (ECMO)
AssigneeVivaCath, Inc.
InventorsTim A. Fischell, Frank Saltiel, Jeffrey Payne
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for performing transseptal extracorporeal membrane oxygenation are disclosed. The method may include puncturing a septum between the right atrium and the left atrium and advancing a catheter system through the puncture and into the aorta. The catheter system may include coaxially arranged and independently moveable venous and arterial sheaths having independently positionable openings for removing blood from the patient and for returning oxygenated blood to the patient, e.g., within the aorta.
Claims20
A method for performing transseptal extracorporeal membrane oxygenation (ECMO) on a patient, the method comprising:
- introducing an arterial sheath catheter through a right atrium and into a patient's heart via an arterial access site;
- advancing a daughter inner catheter through the arterial sheath catheter and into a left atrium;
- advancing a granddaughter inner catheter out of a lumen of the daughter inner catheter and into the left ventricle with a balloon at a distal end of the granddaughter inner catheter at least partially expanded;
- deflecting a distal end region of the granddaughter inner catheter towards an aortic valve;
- advancing the granddaughter inner catheter distally across the aortic valve and into an ascending aortic arch;
- advancing the daughter inner catheter distally into the ascending aortic arch;
- advancing the arterial sheath catheter over the daughter inner catheter until the arterial sheath catheter is at least 1 cm distal to the aortic valve;
- and
- receiving, from the patient, oxygen-poor blood through a venous sheath catheter and returning oxygenated blood through the arterial sheath catheter to the ascending aortic arch.
A method for performing transseptal extracorporeal membrane oxygenation (ECMO) on a patient, the method comprising:
- introducing an arterial sheath catheter through a right atrium and into a patient's heart via an arterial access site;
- advancing a daughter inner catheter through the arterial sheath catheter and into a left atrium;
- advancing a granddaughter inner catheter out of a lumen of the daughter inner catheter and into the left ventricle with a balloon at a distal end of the granddaughter inner catheter expanded;
- advancing the daughter inner catheter over the granddaughter inner catheter;
- deflecting a distal end region of the granddaughter inner catheter towards an aortic valve;
- advancing the granddaughter inner catheter distally out of the daughter inner catheter across the aortic valve and into the ascending aorta;
- advancing the daughter inner catheter distally over the granddaughter inner catheter into the ascending aorta;
- advancing the arterial sheath catheter over the daughter inner catheter and granddaughter inner catheter until the arterial sheath catheter is at least 1 cm distal to the aortic valve;
- and
- receiving, from the patient, oxygen-poor blood through a venous sheath catheter and returning oxygenated blood through the arterial sheath catheter to the ascending aortic arch.
A method for performing transseptal extracorporeal membrane oxygenation (ECMO) on a patient, the method comprising:
- introducing an arterial sheath catheter through a right atrium and into a patient's heart via an arterial access site;
- advancing a daughter inner catheter through the arterial sheath catheter and into a left atrium;
- advancing a granddaughter inner catheter out of a lumen of the daughter inner catheter and into the left ventricle with a balloon at a distal end of the granddaughter inner catheter at least partially expanded;
- deflecting a distal end region of the granddaughter inner catheter towards an aortic valve;
- advancing the granddaughter inner catheter distally across the aortic valve and into an ascending aortic arch;
- advancing the daughter inner catheter distally into the ascending aortic arch;
- advancing the arterial sheath catheter over the daughter inner catheter until the arterial sheath catheter is at least 1 cm distal to the aortic valve;
- positioning a venous sheath catheter so that a plurality of inflow openings on the venous sheath catheter are positioned within the right atrium, the left atrium, or both the right atrium and left atrium;
- and
- receiving, from the patient, oxygen-poor blood through the venous sheath catheter and returning oxygenated blood through the arterial sheath catheter to the ascending aortic arch.
Dependencies are inferred from the claim text.