Patents by Inventor Jos P. A. Smit

Jos P. A. Smit 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).

  • Pacemaker utilizing QT dynamics to diagnose heart failure
    Patent number: 6671549
    Abstract: The invention presents a medical device system and method for determining the degree of heart failure of a patient, utilizing information representative of dynamic variations in patient QT, or segments of QT, over time. The dynamic variations in QT that are measured relate to characteristics of the variation of QT with rate when rate is increasing and when it is decreasing. The dynamic variations include QT dynamic range, QT hysteresis, and QT directrix, each providing important information relating to the patient's variation of QT with heart rate, or QT(RR). QT and dynamic variations of QT can be measured in both left and right ventricles, and taken over the patient's normal rate range. The dynamic data is measured and stored periodically and compared with historical data to determine progression toward heart failure.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: December 30, 2003
    Assignee: Medtronic, Inc.
    Inventors: Peter M. Van Dam, Diederick M. Keizer, Mattias Rouw Rouw, Jos P. A. Smit
  • Pacemaker utilizing QT dynamics to diagnose heart failure
    Publication number: 20030100928
    Abstract: The invention presents a medical device system and method for determining the degree of heart failure of a patient, utilizing information representative of dynamic variations in patient QT, or segments of QT, over time. The dynamic variations in QT that are measured relate to characteristics of the variation of QT with rate when rate is increasing and when it is decreasing. The dynamic variations include QT dynamic range, QT hysteresis, and QT directrix, each providing important information relating to the patient's variation of QT with heart rate, or QT(RR). QT and dynamic variations of QT can be measured in both left and right ventricles, and taken over the patient's normal rate range. The dynamic data is measured and stored periodically and compared with historical data to determine progression toward heart failure.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 29, 2003
    Inventors: Peter M. Van Dam, Diederick M. Keizer, Mattias Rouw Rouw, Jos P.A. Smit