Patents by Inventor Kari Riegner

Kari Riegner 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).

  • ENERGY DELIVERY ALGORITHM FOR MEDICAL DEVICES
    Publication number: 20130006235
    Abstract: A method for controlling an electrosurgical waveform includes the initial steps of activating an electrosurgical generator and increasing power during a first sample window and determining a direction of change in a first average impedance during the first sample window. The method also includes the steps of performing a first adjustment of power in response to the direction of change in the first average impedance during a subsequent sample window and determining a direction of change in a subsequent average impedance during the subsequent sample window in response to the first adjustment of power. The method also includes performing a subsequent adjustment of power in response to the direction of change in the subsequent average impedance, wherein the subsequent adjustment of power is reverse to that of the first adjustment of power when the direction of change in the first and subsequent average impedances is the same.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 3, 2013
    Applicant: Tyco Healthcare Group LP
    Inventors: Ronald J. Podhajsky, Kristin D. Johnson, Jason Case, Kari Riegner, Robert H. Wham
  • Energy delivery algorithm for medical devices based on maintaining a fixed position on a tissue electrical conductivity v. temperature curve
    Patent number: 8211100
    Abstract: A method for controlling an electrosurgical waveform includes the initial steps of activating an electrosurgical generator and increasing power during a first sample window and determining a direction of change in a first average impedance during the first sample window. The method also includes the steps of performing a first adjustment of power in response to the direction of change in the first average impedance during a subsequent sample window and determining a direction of change in a subsequent average impedance during the subsequent sample window in response to the first adjustment of power. The method also includes performing a subsequent adjustment of power in response to the direction of change in the subsequent average impedance, wherein the subsequent adjustment of power is reverse to that of the first adjustment of power when the direction of change in the first and subsequent average impedances is the same.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: July 3, 2012
    Assignee: TYCO Healthcare Group LP
    Inventors: Ronald J. Podhajsky, Kristin D. Johnson, Jason Case, Kari Riegner, Robert H. Wham
  • Energy delivery algorithm for medical devices
    Patent number: 8167875
    Abstract: A method for controlling energy applied to tissue as a function of at least one detected tissue property includes the initial step of applying energy to tissue. The method also includes the steps of initially adjusting the energy applied to tissue and determining a direction of change of the at least one detected tissue property.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: May 1, 2012
    Assignee: TYCO Healthcare Group LP
    Inventors: Ronald J. Podhajsky, Robert H. Wham, Kari Riegner, Kristin D. Johnson, Jason Case
  • Energy Delivery Algorithm for Medical Devices Based on Maintaining a Fixed Position on a Tissue Electrical Conductivity v. Temperature Curve
    Publication number: 20100179536
    Abstract: A method for controlling an electrosurgical waveform includes the initial steps of activating an electrosurgical generator and increasing power during a first sample window and determining a direction of change in a first average impedance during the first sample window. The method also includes the steps of performing a first adjustment of power in response to the direction of change in the first average impedance during a subsequent sample window and determining a direction of change in a subsequent average impedance during the subsequent sample window in response to the first adjustment of power. The method also includes performing a subsequent adjustment of power in response to the direction of change in the subsequent average impedance, wherein the subsequent adjustment of power is reverse to that of the first adjustment of power when the direction of change in the first and subsequent average impedances is the same.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Inventors: Ronald J. Podhajsky, Kristin D. Johnson, Jason Case, Kari Riegner, Robert H. Wham
  • Energy Delivery Algorithm for Medical Devices
    Publication number: 20100179529
    Abstract: A method for controlling energy applied to tissue as a function of at least one detected tissue property includes the initial step of applying energy to tissue. The method also includes the steps of initially adjusting the energy applied to tissue and determining a direction of change of the at least one detected tissue property.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Inventors: Ronald J. Podhajsky, Robert H. Wham, Kari Riegner, Kristin D. Johnson, Jason Case