Patents by Inventor Peter John Ayre

Peter John Ayre 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).

  • Control system for a blood pump
    Patent number: 7963905
    Abstract: A method of controlling the speed of a blood pump, wherein the method includes the steps of deriving an estimated pulsatility index from speed, then deriving an estimated blood pressure from estimated pulsatility index; and maintaining target blood flow rate near to or at a preset value by adjusting the speed.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 21, 2011
    Assignee: Thoratec Corporation
    Inventors: Robert Salmonsen, David Mason, Peter John Ayre
  • Control system for a blood pump
    Publication number: 20090099406
    Abstract: A method of controlling the speed of a blood pump, wherein the method includes the steps of deriving an estimated pulsatility index from speed, then deriving an estimated blood pressure from estimated pulsatility index; and maintaining target blood flow rate near to or at a preset value by adjusting the speed.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Inventors: Robert Salmonsen, David Mason, Peter John Ayre