Patents by Inventor Kari Leidich

Kari Leidich 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 system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
    Patent number: 10582964
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 10, 2020
    Assignee: Covidien LP
    Inventors: Craig Weinberg, Kari Leidich
  • METHOD AND SYSTEM FOR CONTROLLING AN OUTPUT OF A RADIO-FREQUENCY MEDICAL GENERATOR HAVING AN IMPEDANCE BASED CONTROL ALGORITHM
    Publication number: 20170231685
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 17, 2017
    Inventors: Craig WEINBERG, Kari LEIDICH
  • Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
    Patent number: 9642665
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 9, 2017
    Assignee: Covidien AG
    Inventors: Craig Weinberg, Kari Leidich
  • METHOD AND SYSTEM FOR CONTROLLING AN OUTPUT OF A RADIO-FREQUENCY MEDICAL GENERATOR HAVING AN IMPEDANCE BASED CONTROL ALGORITHM
    Publication number: 20140180275
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Applicant: COVIDIEN AG
    Inventors: CRAIG WEINBERG, KARI LEIDICH
  • Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
    Patent number: 8663214
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: March 4, 2014
    Assignee: Covidien AG
    Inventors: Craig Weinberg, Kari Leidich
  • System and method for tissue sealing
    Patent number: 7972328
    Abstract: An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: July 5, 2011
    Assignee: Covidien AG
    Inventors: Robert H. Wham, Rebecca Coulson, Kari Leidich, David A. Schechter, Chelsea Shields, Thomas A. Sturm, Craig Weinberg
  • System and method for tissue sealing
    Publication number: 20070173804
    Abstract: An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Inventors: Robert H. Wham, Rebecca Coulson, Kari Leidich, David A. Schechter, Chelsea Shields, Thomas A. Sturm, Craig Weinberg
  • Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
    Publication number: 20070173805
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Inventors: Craig Weinberg, Kari Leidich