Patents by Inventor Joan Dowd

Joan Dowd 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).

  • CLOSED LOOP DIALYSIS TREATMENT USING ADAPTIVE ULTRAFILTRATION RATES
    Publication number: 20210077015
    Abstract: A method of performing closed-loop dialysis treatment during hemodialysis is provided. The method involves determining an initial ultrafiltration rate and setting an ultrafiltration pump of a dialysis system to the determined ultrafiltration rate. A series of measurements and calculations are made to ensure that a rate of change of blood volume during treatment follows a specified profile. A threshold may be used to keep the rate of change of blood volume tracking the profile. Patient fluid dynamics may be measured in real-time and used to determine the ultrafiltration pump rate.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Louis LeeGrande Barrett, Ken Chhi, David Yuds, Tom Merics, Joan Dowd
  • Closed loop dialysis treatment using adaptive ultrafiltration rates
    Patent number: 10881347
    Abstract: A method of performing closed-loop dialysis treatment during hemodialysis is provided. The method involves determining an initial ultrafiltration rate and setting an ultrafiltration pump of a dialysis system to the determined ultrafiltration rate. A series of measurements and calculations are made to ensure that a rate of change of blood volume during treatment follows a specified profile. A threshold may be used to keep the rate of change of blood volume tracking the profile. Patient fluid dynamics may be measured in real-time and used to determine the ultrafiltration pump rate.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: January 5, 2021
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Louis L. Barrett, Ken Chhi, David Yuds, Tom Merics, Joan Dowd
  • CLOSED LOOP DIALYSIS TREATMENT USING ADAPTIVE ULTRAFILTRATION RATES
    Publication number: 20190200921
    Abstract: A method of performing closed-loop dialysis treatment during hemodialysis is provided. The method involves determining an initial ultrafiltration rate and setting an ultrafiltration pump of a dialysis system to the determined ultrafiltration rate. A series of measurements and calculations are made to ensure that a rate of change of blood volume during treatment follows a specified profile. A threshold may be used to keep the rate of change of blood volume tracking the profile. Patient fluid dynamics may be measured in real-time and used to determine the ultrafiltration pump rate.
    Type: Application
    Filed: March 21, 2018
    Publication date: July 4, 2019
    Inventors: Louis L. BARRETT, Ken CHHI, David YUDS, Tom MERICS, Joan Dowd