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US 4,889,137 AGranted
Method for improved use of heart/lung machine
AssigneeThe United States of America as reprsented by the Department of Health and Human Services
InventorTheodor Kolobow
Life of this patent
Estimating the term…
Abstract
Long term closed chest partial and total cardiopulmonary bypass by peripheral cannulation for severe right and/or left ventricular failure is achieved by the use of a percutaneous coil positioned in the pulmonary artery across the pulmonary artery valve to decompress the left heart.
Claims7
A method of assisting cardiopulmonary bypass, comprising threading a coil through the right atrium, the right ventricle and into the pulmonary artery across the pulmonary artery valve to keep the pulmonary artery valve open during cardiopulmonary bypass.
Dependencies are inferred from the claim text.