Patents by Inventor Robert G. Gremel

Robert G. Gremel 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).

  • Softshell reservoir with integrated cardiotomy reservoir
    Patent number: 5935093
    Abstract: A softshell blood reservoir incorporates an integral flexible cardiotomy section in which a filter/defoamer unit is supported in a semirigid cage. The reservoir also incorporates a storage section and a mixing section. The three sections can selectively communicate with each other. Cardiotomy blood is supplied to the cardiotomy section, and venous blood is supplied to the mixing section. The storage section holds varying amounts of cardiotomy blood to maintain a constant mixed blood output from the mixing section. Only the filter/defoamer unit and the mixing section need be primed.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 10, 1999
    Assignee: Medtronic, Inc.
    Inventors: Roger J. Elgas, Robert G. Gremel, Michael R. Van Driel