Patents by Inventor Ronald J. Podhajsky

Ronald J. Podhajsky 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).

  • Patent number: 10888368
    Abstract: An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: January 12, 2021
    Assignee: COVIDIEN LP
    Inventors: Ronald J. Podhajsky, Kristel L. Ambrosius
  • Publication number: 20200214759
    Abstract: A method for performing an electrosurgical procedure at a surgical site on a patient includes continually sensing electrical and physical properties proximate the surgical site that includes acquiring readings of tissue electrical impedance with respect to time at the surgical site; identifying the minima and maxima of the impedance readings with respect to time; and correlating the minima and/or the maxima of the impedance readings with hydration level and/or hydraulic conductivity in the tissue at the surgical site. The method also includes controlling the application of electrosurgical energy to the surgical site to vary energy delivery based on the step of correlating the minima and/or the maxima of the impedance readings with the hydration level/or and the hydraulic conductivity in the tissue at the surgical site. The process may be an ablation process.
    Type: Application
    Filed: March 13, 2020
    Publication date: July 9, 2020
    Inventor: Ronald J. Podhajsky
  • Patent number: 10588684
    Abstract: A method for performing an electrosurgical procedure at a surgical site on a patient includes continually sensing electrical and physical properties proximate the surgical site that includes acquiring readings of tissue electrical impedance with respect to time at the surgical site; identifying the minima and maxima of the impedance readings with respect to time; and correlating the minima and/or the maxima of the impedance readings with hydration level and/or hydraulic conductivity in the tissue at the surgical site. The method also includes controlling the application of electrosurgical energy to the surgical site to vary energy delivery based on the step of correlating the minima and/or the maxima of the impedance readings with the hydration level/or and the hydraulic conductivity in the tissue at the surgical site. The process may be an ablation process.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: March 17, 2020
    Assignee: COVIDIEN LP
    Inventor: Ronald J. Podhajsky
  • Patent number: 10543038
    Abstract: An electrosurgical generator for supplying electrosurgical energy to tissue includes sensor circuitry configured to measure at least one tissue or energy parameter and a controller configured to generate a plot of the at least one tissue or energy parameter including a plurality of tissue parameter values, wherein the controller is further configured to normalize the plot of the at least one tissue or energy parameter with respect to treatment volume.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: January 28, 2020
    Assignee: Covidien LP
    Inventor: Ronald J. Podhajsky
  • Publication number: 20190167337
    Abstract: An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 6, 2019
    Inventors: RONALD J. PODHAJSKY, KRISTEL L. AMBROSIUS
  • Patent number: 10265119
    Abstract: An electrosurgical forceps is provided. The electrosurgical forceps includes an end effector including first and second jaw members. One of the first and second jaw members is movable from an open configuration for positioning tissue between the first and second jaw members to a closed configuration for grasping tissue for subsequent electrosurgical treatment thereof. One or more cutting electrodes are positioned on the first and/or second jaw members. The cutting electrode(s) includes one or more piezo-elements that are configured to oscillate at a predetermined frequency when the cutting electrode(s) is energized to sever tissue.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: April 23, 2019
    Assignee: COVIDIEN LP
    Inventors: Nikolay A. Kharin, Ronald J. Podhajsky, William Scott Darrow, Arlen J. Reschke
  • Patent number: 10206732
    Abstract: An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: February 19, 2019
    Assignee: COVIDIEN LP
    Inventors: Ronald J. Podhajsky, Kristel L. Ambrosius
  • Publication number: 20180064490
    Abstract: A microwave antenna assembly includes proximal and distal radiating sections and a junction member. The proximal radiating section includes inner and outer conductors and DC power and neutral conductors. The inner conductor is disposed within the outer conductor and the DC power and neutral conductors are disposed radially outward therefrom. The junction member mates the distal and proximal radiating sections such that the distal and proximal radiating sections are positioned relative to one another. The junction member further includes a microwave signal amplifier (MSA) that receives a signal at a first energy level from the inner and outer conductors and a DC power signal from the DC power and neutral conductors. The MSA amplifies the signal from the first energy level to an additional, greater energy level. The junction member provides the microwave signal at the additional energy level to the proximal and distal radiating sections.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Inventor: RONALD J. PODHAJSKY
  • Publication number: 20170348038
    Abstract: An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.
    Type: Application
    Filed: August 17, 2017
    Publication date: December 7, 2017
    Inventors: RONALD J. PODHAJSKY, KRISTEL L. AMBROSIUS
  • Patent number: 9833286
    Abstract: Disclosed is a microwave antenna assembly that includes proximal and distal radiating sections and a junction member. The proximal radiating section includes inner and outer conductors and DC power and neutral conductors. The inner conductor is disposed within the outer conductor and the DC power and neutral conductors are disposed radially outward therefrom. The junction member mates the distal and proximal radiating sections such that the distal and proximal radiating sections are positioned relative to one another. The junction member further includes a microwave signal amplifier (MSA) that receives a signal at a first energy level from the inner and outer conductors and a DC power signal from the DC power and neutral conductors. The MSA amplifies the signal from the first energy level to an additional, greater energy level. The junction member provides the microwave signal at the additional energy level to the proximal and distal radiating sections.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: December 5, 2017
    Assignee: Covidien LP
    Inventor: Ronald J. Podhajsky
  • Patent number: 9763727
    Abstract: A method of manufacturing an end effector for a surgical instrument includes providing a substrate wherein at least an outer periphery of the substrate is formed from an electrically-insulative material. The method further includes forming at least one ridge on the outer periphery of the substrate and depositing an electrically-conductive material onto the at least one ridge to form at least one electrode.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: September 19, 2017
    Assignee: COVIDIEN LP
    Inventors: Ronald J. Podhajsky, William S. Darrow, Kristel L. Ambrosius
  • Patent number: 9757181
    Abstract: An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: September 12, 2017
    Assignee: COVIDIEN LP
    Inventors: Ronald J. Podhajsky, Kristel L. Ambrosius
  • Publication number: 20170112563
    Abstract: An electrosurgical generator for supplying electrosurgical energy to tissue includes sensor circuitry configured to measure at least one tissue or energy parameter and a controller configured to generate a plot of the at least one tissue or energy parameter including a plurality of tissue parameter values, wherein the controller is further configured to normalize the plot of the at least one tissue or energy parameter with respect to treatment volume.
    Type: Application
    Filed: January 9, 2017
    Publication date: April 27, 2017
    Inventor: Ronald J. Podhajsky
  • Patent number: 9555037
    Abstract: A mammal undergoing an energy-based therapy is treated by administering at least one vasoconstrictive agent to the mammal prior to or during the procedure. The at least one vasoconstrictive agent is added in amounts sufficient to reduce or prevent vasodilation. This treatment method increases or promotes the size of the coagulation zone created after energy-based therapy.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: January 31, 2017
    Assignee: COVIDIEN AG
    Inventor: Ronald J. Podhajsky
  • Patent number: 9539050
    Abstract: An electrosurgical generator for supplying electrosurgical energy to tissue is disclosed. The generator includes sensor circuitry configured to measure at least one tissue or energy parameter and a controller configured to generate a plot of the at least one tissue or energy parameter including a plurality of tissue parameter values, wherein the controller is further configured to normalize the plot of the at least one tissue or energy parameter with respect to treatment volume.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: January 10, 2017
    Assignee: COVIDIEN LP
    Inventor: Ronald J. Podhajsky
  • Publication number: 20160302688
    Abstract: A system for planning, performing and/or evaluating the effectiveness of a therapeutic treatment of a target tissue includes at least one of a thermal conductivity probe including a microprobe sensor configured and adapted to measure a thermal conductivity in the target tissue in at least one direction or an electrical conductivity probe including a microprobe sensor configured and adapted to measure an electrical conductivity in the target tissue in at least one direction. The system further includes a multimeter operatively connected to at least one of the thermal conductivity probe or the electrical conductivity probe, the multimeter being configured and adapted to deliver energy to at least one of the thermal conductivity probe or the electrical conductivity probe, and a computer operatively connected to the multimeter.
    Type: Application
    Filed: June 22, 2016
    Publication date: October 20, 2016
    Inventor: RONALD J. PODHAJSKY
  • Patent number: 9468492
    Abstract: An electrosurgical system includes an electrosurgical power generating source, an energy-delivery device operably associated with the electrosurgical power generating source, and a processor unit. The electrosurgical system also includes an imaging system capable of generating image data including tissue temperature information. The processor unit is disposed in operative communication with the imaging system and adapted to analyze the image data to determine a specific absorption rate around the energy-delivery device as a function of the tissue temperature information obtained from the image data.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: October 18, 2016
    Assignee: COVIDIEN LP
    Inventors: Ronald J. Podhajsky, Jonathan A. Coe
  • Patent number: 9375246
    Abstract: A system for planning, performing and/or evaluating the effectiveness of a therapeutic treatment of a target tissue is provided. The system includes at least one of a thermal conductivity probe including a microprobe sensor configured and adapted to measure a thermal conductivity in the target tissue in at least one direction and an electrical conductivity probe including a microprobe sensor configured and adapted to measure an electrical conductivity in the target tissue in at least one direction. The system further includes a multimeter operatively connected to at least one of the thermal conductivity probe and the electrical conductivity probe, the multimeter being configured and adapted to deliver energy to at least one of the thermal conductivity probe and the electrical conductivity probe and a computer operatively connected to the multimeter.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: June 28, 2016
    Assignee: Covidien LP
    Inventor: Ronald J. Podhajsky
  • Patent number: 9377367
    Abstract: A method of predicting a radiation pattern emitted by an energy applicator includes the steps of providing thermal profile data for an energy applicator, determining a specific absorption rate around the energy applicator as a function of the thermal profile data, and generating a simulated radiation pattern for the energy applicator as a function of the determined specific absorption rate.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: June 28, 2016
    Assignee: Covidien LP
    Inventors: Ronald J. Podhajsky, Jonathan A. Coe
  • Publication number: 20160151374
    Abstract: A mammal undergoing an energy-based therapy is treated by administering at least one vasoconstrictive agent to the mammal prior to or during the procedure. The at least one vasoconstrictive agent is added in amounts sufficient to reduce or prevent vasodilation. This treatment method increases or promotes the size of the coagulation zone created after energy-based therapy.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Inventor: RONALD J. PODHAJSKY