Patents Examined by Kristen Drosech
  • Accelerometer count calculation for activity signal for an implantable medical device
    Patent number: 6449508
    Abstract: Different levels of accelerometer output are monitored separately and the outputs from these separate monitorings are combined with weighted values to produce a more responsive accelerometer output or count signal. The value of the weights varies with the level monitored. The method and apparatus can be used independently or combined with other cardiac demand signals to produce a pacing rate or target pacing rate signal or can provide data for monitoring, research, or therapeutic intervention.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: September 10, 2002
    Assignee: Medtronic, Inc.
    Inventors: Todd J. Sheldon, Donald Ruzin