Patents by Inventor Anthony J. Ujhazy

Anthony J. Ujhazy 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).

  • Method and apparatus for testing compatibility of lead polarity and polarity programming of a cardiac stimulator
    Patent number: 5431692
    Abstract: A cardiac stimulation device includes a system for testing lead polarity and determining whether the programmed polarity configuration is compatible with an attached pacing and sensing lead. The lead polarity test is based on a measurement of lead impedance performed during the delivery of a pacing pulse. Since the polarity test consists of lead impedance measurements for all polarity configurations, including incompatible configurations, the system provides for backup pacing pulses in a safe configuration to assure pacing support of a patient during all cardiac cycles.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: July 11, 1995
    Assignee: Telectronics Pacing Systems, Inc.
    Inventors: Daniel L. Hansen, Anthony J. Ujhazy
  • Physiologically-calibrated rate adaptive, dual chamber pacemaker
    Patent number: 5292340
    Abstract: A dual-chamber metabolic demand, rate adaptive pacemaker that automatically calibrates the correlation between a metabolic demand measurement and an appropriate metabolic demand pacing rate according to the true physiological needs of the body, as determined by a patient's sinus rate when the natural sinus rate is functioning in a reliable manner in the absence of cardiac arrhythmia.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: March 8, 1994
    Assignee: Telectronics Pacing Systems, Inc.
    Inventors: Peter A. Crosby, John R. Hamilton, Anthony J. Ujhazy