Patents by Inventor ERIC M. WESTRA

ERIC M. WESTRA 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: 20230380882
    Abstract: The present disclosure includes an electrosurgical generator that controls treatment energy to be provided in a coagulation mode, where the treatment energy has an adjustable voltage ramp rate which can be set to a ramp rate in a range of voltage ramp rates. The generator receives signals from an instrument over time relating to load impedance. When the load impedance is above a threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and decreases, at the adjustable voltage ramp rate, a voltage of the treatment energy. When the load impedance is below the threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and increases, at the adjustable voltage ramp rate, the voltage of the treatment energy.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Inventors: Donald L. Tonn, James E. Dunning, William D. Faulkner, Jennifer R. McHenry, Devon E. Scott-Drechsel, Eric M. Westra
  • Patent number: 11744631
    Abstract: The present disclosure includes an electrosurgical generator that controls treatment energy to be provided in a coagulation mode, where the treatment energy has an adjustable voltage ramp rate which can be set to a ramp rate in a range of voltage ramp rates. The generator receives signals from an instrument over time relating to load impedance. When the load impedance is above a threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and decreases, at the adjustable voltage ramp rate, a voltage of the treatment energy. When the load impedance is below the threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and increases, at the adjustable voltage ramp rate, the voltage of the treatment energy.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: September 5, 2023
    Assignee: COVIDIEN LP
    Inventors: Donald L. Tonn, James E. Dunning, William D. Faulkner, Jennifer R. McHenry, Devon E. Scott-Drechsel, Eric M. Westra
  • Patent number: 11534226
    Abstract: An electrosurgical generator includes a processor and a memory storing instructions executable by the processor. The instructions when executed, cause the generator to provide an indicated treatment energy to the instrument, where the indicated treatment energy is set by a user and having a corresponding current limit, receive signals from the instrument over time relating to a load impedance between the active electrode and the return electrode of the instrument, determine based on the signals that the active electrode and the return electrode are currently shorted together, and prior to the short, the instrument was grasping tissue between the active electrode and the return electrode, and based on the determination, reduce a current limit of treatment energy being provided to the instrument to below the corresponding current limit.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: December 27, 2022
    Assignee: Covidien LP
    Inventors: Donald L. Tonn, James E. Dunning, William D. Faulkner, Jennifer R. McHenry, Devon E. Scott-Drechsel, Eric M. Westra
  • Patent number: 11272975
    Abstract: The disclosed systems and methods relate to controlling the application of electrosurgical energy by an electrosurgical instrument. An electrosurgical generator in accordance with the present disclosure includes a processor and a memory storing instructions executable by the processor. The instructions when executed, cause the generator to receive signals from the instrument over time relating to whether tissue is grasped by the instrument, receive an indication to provide an indicated treatment power to the instrument where the indicated treatment power is set by a user, determine based on the signals that tissue is currently grasped and that, for at least a predetermined length of time prior, no tissue had been grasped, and based on the determination, provide a treatment power surge to the instrument for a surge time period. After the surge time period, the generator provides the indicated treatment power to the instrument.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 15, 2022
    Assignee: COVIDIEN LP
    Inventors: Donald L. Tonn, James E. Dunning, William D. Faulkner, Jennifer R. McHenry, Devon E. Scott-Drechsel, Eric M. Westra
  • Publication number: 20210259759
    Abstract: In accordance with aspects of the present disclosure, an adaptor assembly includes a plug, a selector assembly, and a connector. The plug is coupled to an electrosurgical generator and is configured to receive electrosurgical energy from the electrosurgical generator. The selector assembly includes a first position and a second position. The first position is configured to indicate a first setting of the electrosurgical generator. The second position is configured to indicate a second setting of the electrosurgical generator. The selector assembly, when actuated, indicates the selected position to the electrosurgical generator to initiate the corresponding setting. The connector is configured to couple to a surgical instrument and convey the electrosurgical energy to the surgical instrument. The electrosurgical energy, when based on the first setting, is different from the electrosurgical energy, when based on the second setting.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 26, 2021
    Inventors: Jennifer R. Mchenry, William D. Faulkner, James E. Dunning, Devon E. Scott-Drechsel, Eric M. Westra, Donald L. Tonn
  • Publication number: 20190090932
    Abstract: The present disclosure includes an electrosurgical generator that controls treatment energy to be provided in a coagulation mode, where the treatment energy has an adjustable voltage ramp rate which can be set to a ramp rate in a range of voltage ramp rates. The generator receives signals from an instrument over time relating to load impedance. When the load impedance is above a threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and decreases, at the adjustable voltage ramp rate, a voltage of the treatment energy. When the load impedance is below the threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and increases, at the adjustable voltage ramp rate, the voltage of the treatment energy.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 28, 2019
    Inventors: DONALD L. TONN, JAMES E. DUNNING, WILLIAM D. FAULKNER, JENNIFER R. McHENRY, DEVON E. SCOTT-DRECHSEL, ERIC M. WESTRA
  • Publication number: 20190090931
    Abstract: The disclosed systems and methods relate to controlling the application of electrosurgical energy by an electrosurgical instrument to minimizing arcing and subsequent wear of electrosurgical instruments. An electrosurgical generator in accordance with the present disclosure includes a processor and a memory storing instructions executable by the processor.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 28, 2019
    Inventors: DONALD L. TONN, JAMES E. DUNNING, WILLIAM D. FAULKNER, JENNIFER R. McHENRY, DEVON E. SCOTT-DRECHSEL, ERIC M. WESTRA
  • Publication number: 20190090930
    Abstract: The disclosed systems and methods relate to controlling the application of electrosurgical energy by an electrosurgical instrument. An electrosurgical generator in accordance with the present disclosure includes a processor and a memory storing instructions executable by the processor. When the instructions are executed, they cause the generator to receive signals from the instrument over time relating to whether tissue is grasped by the instrument, receive an indication to provide an indicated treatment power to the instrument where the indicated treatment power is set by a user, determine based on the signals that tissue is currently grasped and that, for at least a predetermine length of time prior, no tissue had been grasped, and based on the determination, provide a treatment power surge to the instrument for a surge time period, where the treatment power surge is greater than the indicated treatment power.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 28, 2019
    Inventors: DONALD L. TONN, JAMES E. DUNNING, WILLIAM D. FAULKNER, JENNIFER R. McHENRY, DEVON E. SCOTT-DRECHSEL, ERIC M. WESTRA