Patents by Inventor Bernhard A. P. De Vries

Bernhard A. P. De Vries 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 system for preventing ventricular tachycardia
    Patent number: 6370431
    Abstract: There is provided a pacemaker system which includes intervention for overdriving the patient's natural heart rate in the event of a sensed incipient ventricular arrhythmia condition, and particularly torsades de pointes. The pacemaker continually acquires QT signals and analyzes them for respective properties, updating statistical information relating to the properties. In a preferred embodiment, the pacemaker analyzes QT interval, QT dispersion, time derivative of the QT interval, and/or T-wave amplitude and determines an intervention for pacing therapy based upon changes to these properties. The pacemaker also monitors premature ventricular beats and generates data representative of such occurrences, which data is used alone or in combination with QT data in determining whether intervention is indicated, for adjusting the intervention pacing rate.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: April 9, 2002
    Assignee: Medtronic, Inc.
    Inventors: Gustaaf A. P. Stoop, Geeske Van Oort, Christianus J. J. E. Van Groeningen, Bernhard A. P. De Vries
  • Placemaker system for preventing ventricular tachycardia
    Publication number: 20010007948
    Abstract: There is provided a pacemaker system which includes intervention for overdriving the patient's natural heart rate in the event of a sensed incipient ventricular arrhythmia condition, and particularly torsades de pointes. The pacemaker continually acquires QT signals and analyzes them for respective properties, updating statistical information relating to the properties. In a preferred embodiment, the pacemaker analyzes QT interval, QT dispersion, time derivative of the QT interval, and/or T-wave amplitude and determines an intervention for pacing therapy based upon changes to these properties. The pacemaker also monitors premature ventricular beats and generates data representative of such occurrences, which data is used alone or in combination with QT data in determining whether intervention is indicated, for adjusting the intervention pacing rate.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 12, 2001
    Inventors: Gustaaf A.P. Stoop, Qeeske Van Oort, Christianus J.J.E. Van Groeningen, Bernhard A.P. De Vries