Patents by Inventor Kevin G. Nugent

Kevin G. Nugent 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).

  • Multi-site impedance sensor using coronary sinus/vein electrodes
    Patent number: 6278894
    Abstract: A method and apparatus for performing impedance plethysmography on a living heart for diagnostic and therapy purposes involves placement of plural leads where at least one is disposed within a coronary vein traversing the myocardium on the left side of the heart with another lead having plural electrodes thereon disposed in the right ventricle. By appropriate selection of electrodes on the first and second leads for driving with an AC carrier signal and other such electrodes coupled to a sensing amplifier, an impedance vs. time signal can be derived that when signal processed provides useful information concerning cardiac performance. The multi-site impedance sensing has been found to yield more robust data especially in patients having CHF.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: August 21, 2001
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Rodney W. Salo, V. A. Kadhiresan, Kevin G. Nugent
  • Optimization of pacing parameters based on measurement of acoustic noise
    Patent number: 6058329
    Abstract: Hemodynamic performance of the heart as a pump is optimized by using an accelerometer and signal processing circuitry to measure total acoustic noise (TAN) over predetermined time periods when a pacemaker is made to function in a variety of modes. By detecting the particular mode associated with minimum TAN, the optimum pacing mode is arrived at.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: May 2, 2000
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Rodney W. Salo, Kevin G. Nugent
  • Optimization of pacing parameters based on measurement of integrated acoustic noise
    Patent number: 6044298
    Abstract: Hemodynamic performance of the heart as a pump is optimized by using an accelerometer and signal processing circuitry to measure total acoustic noise (TAN) over predetermined time periods when a pacemaker is made to function in a variety of modes. By detecting the particular mode associated with minimum TAN, the optimum pacing mode is arrived at.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: March 28, 2000
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Rodney W. Salo, Kevin G. Nugent