Patents by Inventor Kenneth C. Brockmann
Kenneth C. Brockmann 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).
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Patent number: 11571252Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: GrantFiled: January 4, 2019Date of Patent: February 7, 2023Assignee: Covidien LPInventors: Donald W. Heckel, Katherine Wagle, William D. Faulkner, Kenneth C. Brockmann
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Patent number: 11571251Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modeled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: GrantFiled: January 4, 2019Date of Patent: February 7, 2023Assignee: Covidien LPInventors: Donald W. Heckel, Katherine Wagle, William D. Faulkner, Kenneth C. Brockmann
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Publication number: 20190216526Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modeled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: ApplicationFiled: January 4, 2019Publication date: July 18, 2019Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
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Publication number: 20190175249Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: ApplicationFiled: January 4, 2019Publication date: June 13, 2019Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
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Patent number: 10172666Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: GrantFiled: September 11, 2015Date of Patent: January 8, 2019Assignee: COVIDIEN LPInventors: Donald W. Heckel, Katherine Wagle, William D. Faulkner, Kenneth C. Brockmann
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Patent number: 10172665Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: GrantFiled: September 11, 2015Date of Patent: January 8, 2019Assignee: COVIDIEN LPInventors: Donald W. Heckel, Katherine Wagle, William D. Faulkner, Kenneth C. Brockmann
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Publication number: 20160081740Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: ApplicationFiled: September 11, 2015Publication date: March 24, 2016Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
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Publication number: 20160081739Abstract: An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.Type: ApplicationFiled: September 11, 2015Publication date: March 24, 2016Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
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Publication number: 20160045248Abstract: An electrosurgical generator is disclosed. The generator includes an RF output stage configured to supply electrosurgical energy to tissue via at least one active electrode configured to apply electrosurgical energy to tissue; sensing circuitry configured to measure impedance of tissue; and a controller.Type: ApplicationFiled: October 27, 2015Publication date: February 18, 2016Inventors: JEFFREY R. UNGER, RYAN C. ARTALE, JOSHUA A. KELLER, GREGORY P. MILNER, KENNETH C. BROCKMANN, ALEXANDER M. WASKIEWICZ, REBECCA J. COULSON, JESSICA E.C. OLSON
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Patent number: 9186200Abstract: An electrosurgical generator is disclosed. The generator includes an RF output stage configured to supply electrosurgical energy to tissue via at least one active electrode configured to apply electrosurgical energy to tissue; sensing circuitry configured to measure impedance of tissue; and a controller. The controller is configured to determine occurrence of a tissue reaction 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; generate a target impedance trajectory as a function of measured impedance and desired rate of change based on the tissue reaction determination, wherein the target impedance trajectory includes a plurality of target impedance values; and drive tissue impedance along the target impedance trajectory by adjusting the output of the electrosurgical generator to substantially match tissue impedance to a corresponding target impedance for at least a predetermined minimum time period.Type: GrantFiled: May 30, 2012Date of Patent: November 17, 2015Assignee: Covidien AGInventors: Jeffrey R. Unger, Ryan C. Artale, Joshua A. Keller, Gregory P. Milner, Kenneth C. Brockmann, Alexander M. Waskiewicz, Rebecca J. Coulson, Jessica E. C. Olson
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Publication number: 20120283731Abstract: An electrosurgical generator is disclosed. The generator includes an RF output stage configured to supply electrosurgical energy to tissue via at least one active electrode configured to apply electrosurgical energy to tissue; sensing circuitry configured to measure impedance of tissue; and a controller. The controller is configured to determine occurrence of a tissue reaction 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; generate a target impedance trajectory as a function of measured impedance and desired rate of change based on the tissue reaction determination, wherein the target impedance trajectory includes a plurality of target impedance values; and drive tissue impedance along the target impedance trajectory by adjusting the output of the electrosurgical generator to substantially match tissue impedance to a corresponding target impedance for at least a predetermined minimum time period.Type: ApplicationFiled: May 30, 2012Publication date: November 8, 2012Applicant: TYCO HEALTHCARE GROUP LPInventors: Jeffrey R. Unger, Ryan C. Artale, Joshua A. Keller, Gregory P. Milner, Kenneth C. Brockmann, Alexander M. Waskiewicz, Rebecca J. Coulson, Jessica E. C. Olson