Active intravascular lung
AssigneeMedtronic, Inc.
InventorRussell A. Corace
Life of this patent
Estimating the term…
Abstract
An active intravascular lung includes a gas exchanger for delivering oxygen to blood flowing across the gas exchanger when positioned within the cavity and a pump in proximity to the gas exchanger for creating a differential blood pressure across the gas exchanger. When the gas exchanger is positioned percutaneously in the blood flow cavity, oxygen can be delivered to the blood independent of the operation of the patient's heart.
Claims21
An active intravascular lung assist device configured for insertion into a cavity of a patient through which blood flows, said device comprising:
- a gas exchanger adapted to deliver oxygen to blood flowing across the gas exchanger when positioned within the cavity;
- a pump positioned adjacent the gas exchanger and adapted to receive blood therethrough, the pump creating a differential blood pressure across the gas exchanger thereby forcing blood through the exchanger and;
- a catheter fluidly interconnecting the gas exchanger and the pump;
- whereby the gas exchanger when positioned in the cavity can deliver oxygen to the blood independent of blood fluid flow generated by the patient's heart.
A method of oxygenating blood comprising the steps of:
- providing a gas exchanger adapted to exchange oxygen for carbon dioxide as blood passes across the gas exchanger;
- providing a pump which is fluidly interconnected to the gas exchanger;
- percutaneously positioning the gas exchanger and pump within a blood flow conduit within a patient;
- supplying oxygen to the gas exchanger;
- and
- driving the pump to force blood to flow across the gas exchanger.
An active intravascular lung assist device configured for insertion into a cavity of a patient through which blood flows, said device comprising:
- a gas exchanger adapted to deliver oxygen to blood flowing across the gas exchanger when positioned within the cavity;
- a pump positioned adjacent the gas exchanger for creating a differential blood pressure across the gas exchanger thereby forcing blood through the exchanger;
- and
- a catheter fluidly interconnecting the gas exchanger and the pump;
- whereby the gas exchanger when positioned in the cavity can deliver oxygen to the blood independent of blood fluid flow generated by the patient's heart.
An active intravascular lung assist device configured for insertion into a cavity of a patient through which blood flows, said device comprising:
- a gas exchanger adapted to deliver oxygen to blood flowing across the gas exchanger when positioned within the cavity, the gas exchanger including an inlet and an outlet;
- and
- a pump positioned adjacent the gas exchanger for creating a differential blood pressure across the gas exchanger thereby forcing blood through the exchanger, the pump including an inlet and an outlet, the inlet of the pump being positioned adjacent the outlet of the gas exchanger so that the pump draws the blood through the exchanger;
- whereby the gas exchanger when positioned in the cavity can deliver oxygen to the blood independent of blood fluid flow generated by the patient's heart.
An active intravascular lung assist device configured for insertion into a cavity of a patient through which blood flows, said device comprising:
- a gas exchanger adapted to deliver oxygen to blood flowing across the gas exchanger when positioned within the cavity, the gas exchanger including an inlet and an outlet;
- and
- a pump positioned adjacent the gas exchanger for creating a differential blood pressure across the gas exchanger thereby forcing blood through the exchanger, the pump including an inlet and an outlet, the outlet of the pump being positioned adjacent the inlet of the gas exchanger so that the pump pushes the blood through the exchanger;
- a catheter fluidly interconnecting the gas exchanger and the pump;
- whereby the gas exchanger when positioned in the cavity can deliver oxygen to the blood independent of blood fluid flow generated by the patient's heart.
An active intravascular lung assist device configured for insertion into a cavity of a patient through which blood flows, said device comprising:
- a gas exchanger adapted to deliver oxygen to blood flowing across the gas exchanger when positioned within the cavity;
- and
- a pump positioned adjacent the gas exchanger for creating a differential blood pressure across the gas exchanger thereby forcing blood through the exchanger;
- whereby the gas exchanger when positioned in the cavity can deliver oxygen to the blood independent of blood fluid flow generated by the patient's heart, and wherein the pump is driven by a flexible drive cable that is adapted to extend extracorporeally when the pump and gas exchanger are positioned in the cavity.
Dependencies are inferred from the claim text.