Patents by Inventor Francis M. Donovan, Jr.

Francis M. Donovan, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Heart pump
    Patent number: 4105016
    Abstract: A centrifugal blood pump and method of pumping blood to reduce the pressure in either the right or left ventricle in synchronism with the ventricular contractions of a failing heart. The pump is implanted in a parallel relationship with the ventricle to be assisted and is run at a constant speed. When the pressure in the ventricle reaches a predetermined value, blood will automatically start to flow through the pump thereby reducing the maximum allowable pressure in the ventricle being assisted.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: August 8, 1978
    Inventor: Francis M. Donovan, Jr.