Patents by Inventor Kathryn Kasischke

Kathryn Kasischke 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).

  • RF ablation apparatus and method using amplitude control
    Patent number: 6635056
    Abstract: Power signals having controllable peak-to-peak amplitudes are provided to electrode sets so that during a first period of time, a first amplitude signal is provided to a first electrode set and a second amplitude signal is provided to a second electrode set. The first amplitude is greater than the second amplitude and bipolar current flows from the first electrode set to the second electrode set. During a second period of time, a third amplitude signal is provided to the first electrode set and a fourth amplitude signal is provided to the second electrode set. The third amplitude is less than the fourth amplitude and the current flows from the second electrode set to the first electrode set. Alternating first and second periods of time establish repetitive bipolar current flow between electrode sets. The addition of a backplate establishes unipolar current flow.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: October 21, 2003
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Veerichetty A. Kadhiresan, Jeffrey A. Hall, David S. Wood, Kathryn Kasischke
  • RF ablation apparatus and method using amplitude control
    Publication number: 20030069573
    Abstract: Power signals having controllable peak-to-peak amplitudes are provided to electrode sets so that during a first period of time, a first amplitude signal is provided to a first electrode set and a second amplitude signal is provided to a second electrode set. The first amplitude is greater than the second amplitude and bipolar current flows from the first electrode set to the second electrode set. During a second period of time, a third amplitude signal is provided to the first electrode set and a fourth amplitude signal is provided to the second electrode set. The third amplitude is less than the fourth amplitude and the current flows from the second electrode set to the first electrode set. Alternating first and second periods of time establish repetitive bipolar current flow between electrode sets. The addition of a backplate establishes unipolar current flow.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Inventors: Veerichetty A. Kadhiresan, Jeffrey A. Hall, David S. Wood, Kathryn Kasischke