Patents Represented by Law Firm Gottlieb, Rackamn & Reisman, P.C.
  • Rate responsive pacemaker with exercise recovery using minute volume determination
    Patent number: 5836988
    Abstract: A rate responsive implantable pacemaker generates a metabolic demand parameter which is converted into a corresponding metabolic indicated parameter. The parameter is used to determine certain characteristics related to an exercise period and the patient, including exercise duration and intensity. These characteristics are used to dynamically calculate an exercise recovery period during which the pacing rate is elevated above a rate indicated by the metabolic parameter. Preferably, fuzzy logic circuitry is used for this purpose.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: November 17, 1998
    Assignee: Pacesetter, Inc.
    Inventors: Daniel Cooper, Tibor A. Nappholz, Chih-ming James Chiang