Patents Assigned to Alexander Wirtzfeld
  • Cardiac pacemaker
    Patent number: 4202339
    Abstract: A cardiac pacemaker includes means for conforming the stimulation frequency to the bodily stressing conditions of the wearer of the pacemaker in using a blood parameter as measuring value for the influencing of the frequency of stimulation. A measuring probe is implanted in the heart of the wearer of the pacemaker for measuring the oxygen saturation of the blood. The measuring value thereby resulting serves as measuring parameter for the influencing of the frequency of stimulation.
    Type: Grant
    Filed: December 19, 1978
    Date of Patent: May 13, 1980
    Assignee: Alexander Wirtzfeld
    Inventors: Alexander Wirtzfeld, Thomas Bock