Patents by Inventor Donald W. Heckel

Donald W. Heckel 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).

  • Publication number: 20200403713
    Abstract: Methods and system are provided to mitigate RF interferences during operation of an electrosurgical system. An electrosurgical system configured to output therapeutic RF energy may refrain from outputting RF energy in order to measure an RF interference for a group of candidate frequencies, and to select a frequency from the group of candidate frequencies for which the measured RF interference is below a threshold value, and to produce a feedback signal (a control signal) at the selected frequency to control operation of the electrosurgical system. During operation of the electrosurgical system the feedback signal may be filtered by a BPF whose fundamental frequency is set to the selected frequency, to thus obtain an interference free feedback signal and, consequently, a reliable control of the electrosurgical system.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Donald W. Heckel, Fred B. Pelton, William D. Faulkner, Donald L. Tonn
  • Patent number: 10771167
    Abstract: Methods and system are provided to mitigate RF interferences during operation of an electrosurgical system. An electrosurgical system configured to output therapeutic RF energy may refrain from outputting RF energy in order to measure an RF interference for a group of candidate frequencies, and to select a frequency from the group of candidate frequencies for which the measured RF interference is below a threshold value, and to produce a feedback signal (a control signal) at the selected frequency to control operation of the electrosurgical system. During operation of the electrosurgical system the feedback signal may be filtered by a BPF whose fundamental frequency is set to the selected frequency, to thus obtain an interference free feedback signal and, consequently, a reliable control of the electrosurgical system.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 8, 2020
    Assignee: Covidien LP
    Inventors: Donald W. Heckel, William D. Faulkner, Donald L. Tonn, Fred B. Pelton
  • Publication number: 20200093534
    Abstract: An electrosurgical generator and associated methods determine a real part of the impedance of treated tissue. The electrosurgical generator includes an output stage, a plurality of sensors, and a controller that controls the output stage. The controller includes a signal processor that determines an RMS voltage, an RMS current, an average power, and a real part of the impedance of the treated tissue based on measured voltage and current by using a plurality of averaging filters. The controller controls the output stage to generate electrosurgical energy based on at least the determined real part of the impedance.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Inventors: Donald W. Heckel, Andrey Belous
  • Patent number: 10492850
    Abstract: An electrosurgical generator and associated methods determine a real part of the impedance of treated tissue. The electrosurgical generator includes an output stage, a plurality of sensors, and a controller that controls the output stage. The controller includes a signal processor that determines an RMS voltage, an RMS current, an average power, and a real part of the impedance of the treated tissue based on measured voltage and current by using a plurality of averaging filters. The controller controls the output stage to generate electrosurgical energy based on at least the determined real part of the impedance.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 3, 2019
    Assignee: COVIDIEN LP
    Inventors: Donald W. Heckel, Andrey Belous
  • Publication number: 20190350637
    Abstract: An electrosurgical generator includes an RF output stage, a current sensor, a voltage sensor, first and second log amplifiers, and a controller. The RF output stage is configured to supply electrosurgical energy to tissue. The current sensor is configured to sense a current of the electrosurgical energy and generate a current signal corresponding to the current of the electrosurgical energy. The first log amplifier is configured to amplify and compress the current signal. The voltage sensor is configured to sense a voltage of the electrosurgical energy and generate a voltage signal in response thereto. The second log amplifier is configured to amplify and compress the voltage signal. The controller is configured to receive the amplified voltage signal and the amplified current signal and operatively control the generation of the electrosurgical energy as a function of the amplified voltage signal and the amplified current signal.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Donald W. Heckel, Robert J. Behnke, II
  • Patent number: 10376301
    Abstract: An electrosurgical generator includes an RF output stage, a current sensor, a voltage sensor, first and second log amplifiers, and a controller. The RF output stage is configured to supply electrosurgical energy to tissue. The current sensor is configured to sense a current of the electrosurgical energy and generate a current signal corresponding to the current of the electrosurgical energy. The first log amplifier is configured to amplify and compress the current signal. The voltage sensor is configured to sense a voltage of the electrosurgical energy and generate a voltage signal in response thereto. The second log amplifier is configured to amplify and compress the voltage signal. The controller is configured to receive the amplified voltage signal and the amplified current signal and operatively control the generation of the electrosurgical energy as a function of the amplified voltage signal and the amplified current signal.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: August 13, 2019
    Assignee: COVIDIEN LP
    Inventors: Donald W. Heckel, Robert J. Behnke, II
  • Publication number: 20190231413
    Abstract: Aspects of the disclosure relate to an instrument for pacing, mapping, sensing, and/or ablating cardiac tissue that includes an electrogram filtering circuit. To supply radio frequency energy, the disclosed instruments are only optionally connected to a radio frequency generator. When connected to a generator, the electrogram filtering circuit can be provided in a handle of the instrument, or in a connector, for example, to protect the instrument from potentially high-powered radio frequency energy. Alternatively, various disclosed embodiments are capable of pacing/sensing as a standalone device. The connector can be provided separately from both the instrument and the generator. In some embodiments, the electrogram filtering circuit is adaptive to suit a variety of generators.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Applicant: Medtronic, Inc.
    Inventors: James Skarda, Eric Meyer, Donald W. Heckel, Travis Jones
  • Publication number: 20190216526
    Abstract: 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: Application
    Filed: January 4, 2019
    Publication date: July 18, 2019
    Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
  • Publication number: 20190175249
    Abstract: 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: Application
    Filed: January 4, 2019
    Publication date: June 13, 2019
    Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
  • Publication number: 20190132062
    Abstract: Methods and system are provided to mitigate RF interferences during operation of an electrosurgical system. An electrosurgical system configured to output therapeutic RF energy may refrain from outputting RF energy in order to measure an RF interference for a group of candidate frequencies, and to select a frequency from the group of candidate frequencies for which the measured RF interference is below a threshold value, and to produce a feedback signal (a control signal) at the selected frequency to control operation of the electrosurgical system. During operation of the electrosurgical system the feedback signal may be filtered by a BPF whose fundamental frequency is set to the selected frequency, to thus obtain an interference free feedback signal and, consequently, a reliable control of the electrosurgical system.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 2, 2019
    Inventors: DONALD W. HECKEL, WILLIAM D. FAULKNER, DONALD L. TONN, FRED B. PELTON
  • Patent number: 10172665
    Abstract: 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: Grant
    Filed: September 11, 2015
    Date of Patent: January 8, 2019
    Assignee: COVIDIEN LP
    Inventors: Donald W. Heckel, Katherine Wagle, William D. Faulkner, Kenneth C. Brockmann
  • Patent number: 10172666
    Abstract: 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: Grant
    Filed: September 11, 2015
    Date of Patent: January 8, 2019
    Assignee: COVIDIEN LP
    Inventors: Donald W. Heckel, Katherine Wagle, William D. Faulkner, Kenneth C. Brockmann
  • Patent number: 9987068
    Abstract: A method for optimizing emissions from simultaneous activation of electrosurgery generators is presented including delivering first energy to a first target tissue via a first energy module, the first energy represented as a first waveform having a first phase, delivering second energy to a second target tissue via a second energy module, the second energy represented as a second waveform having a second phase, applying the first energy in a first energy mode, and applying the second energy in a second energy mode. The method further includes the steps of comparing the first phase of the first energy waveform with the second phase of the second energy waveform and adjusting a relative phase between the first and second energy waveforms based on the comparison step.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: June 5, 2018
    Assignee: COVIDIEN LP
    Inventors: Randall L. Anderson, Donald W. Heckel
  • Patent number: 9974595
    Abstract: A modular electrosurgical generator platform is presented including a power supply module configured to output power, a first energy module configured to receive the power and convert the power into a first waveform having a first phase, and to deliver the power in a first energy mode, and a second energy module configured to receive the power and convert the power into a second waveform having a second phase, and to deliver the power in a second energy mode. The modular electrosurgical generator platform also includes a host controller module to control a type and a number of energy modalities, a comparator for comparing the first phase of the first waveform with the second phase of the second waveform in one or more of a plurality of sub-periods and an adjustment module for adjusting a relative phase between the first and second waveforms based on results obtained from the comparator.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: May 22, 2018
    Assignee: COVIDIEN LP
    Inventors: Randall L. Anderson, Donald W. Heckel
  • Patent number: 9949783
    Abstract: A non-transitory computer-readable storage medium is presented including a power supply module configured to output power, a first energy module configured to receive the power and convert the power into a first waveform having a first phase, and to deliver the power in a first energy mode, and a second energy module configured to receive the power and convert the power into a second waveform having a second phase, and to deliver the power in a second energy mode. A host controller module is configured to control a type and a number of energy modalities provided by the generator platform and a comparator compares the first phase of the first waveform with the second phase of the second waveform in one or more of a plurality of sub-periods. An adjustment module adjusts a relative phase between the first and second waveforms based on results obtained from the comparator.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: April 24, 2018
    Assignee: COVIDIEN LP
    Inventors: Randall L. Anderson, Donald W. Heckel
  • Patent number: 9844404
    Abstract: An electrosurgical system for performing an electrosurgical procedure is provided and includes an electrosurgical generator and a calibration computer system. The electrosurgical generator includes one or more processors and a measurement module including one or more log amps that are in operative communication with the processor. The calibration computer system configured to couple to a measurement device and is configured to measure parameters of an output signal generated by the electrosurgical generator. The calibration computer system is configured to compile the measured parameters into one or more data look-up tables and couple to the electrosurgical generator for transferring the data look-up table(s) to memory of the electrosurgical generator. The microprocessor is configured to receive an output from the log amp(s) and access the data look-up table(s) from memory to execute one or more control algorithms for controlling an output of the electrosurgical generator.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 19, 2017
    Assignee: COVIDIEN LP
    Inventors: Robert J. Behnke, II, Donald W. Heckel, Robert B. Smith, James E. Krapohl
  • Patent number: 9480523
    Abstract: The systems and methods of the present disclosure calibrate impedance loss model parameters associated with an electrosurgical system and compensate for impedance losses in an electrosurgical system using the calibrated impedance loss model parameters. A computer system stores voltage and current sensor data for different test loads and calculates impedance values for each test load. The computer system predicts a phase value for each test load using a respective load impedance value. The computer system back calculates impedance loss model parameters based upon the voltage and current sensor data, the predicted phase values, and the impedance values of the test loads. During operation, the electrosurgical device senses a voltage and a current, predicts a phase value based upon the sensed voltage and current, and calculates metrics at the tissue site based upon the sensed voltage and current, the predicted phase value, and the impedance loss model parameters.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 1, 2016
    Assignee: COVIDIEN LP
    Inventor: Donald W. Heckel
  • Publication number: 20160081739
    Abstract: 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: Application
    Filed: September 11, 2015
    Publication date: March 24, 2016
    Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
  • Publication number: 20160081740
    Abstract: 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: Application
    Filed: September 11, 2015
    Publication date: March 24, 2016
    Inventors: DONALD W. HECKEL, KATHERINE WAGLE, WILLIAM D. FAULKNER, KENNETH C. BROCKMANN
  • Publication number: 20150327908
    Abstract: An electrosurgical system for performing an electrosurgical procedure is provided and includes an electrosurgical generator and a calibration computer system. The electrosurgical generator includes one or more processors and a measurement module including one or more log amps that are in operative communication with the processor. The calibration computer system configured to couple to a measurement device and is configured to measure parameters of an output signal generated by the electrosurgical generator. The calibration computer system is configured to compile the measured parameters into one or more data look-up tables and couple to the electrosurgical generator for transferring the data look-up table(s) to memory of the electrosurgical generator. The microprocessor is configured to receive an output from the log amp(s) and access the data look-up table(s) from memory to execute one or more control algorithms for controlling an output of the electrosurgical generator.
    Type: Application
    Filed: July 24, 2015
    Publication date: November 19, 2015
    Inventors: ROBERT J. BEHNKE, II, DONALD W. HECKEL, ROBERT B. SMITH, JAMES E. KRAPOHL