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公开(公告)号：US11517367B2
公开(公告)日：2022-12-06
申请号：US16818202
申请日：2020-03-13
Applicant: Covidien LP
Inventor： Ronald J. Podhajsky
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.
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公开(公告)号：US10888368B2
公开(公告)日：2021-01-12
申请号：US16273286
申请日：2019-02-12
Applicant: COVIDIEN LP
Inventor： Ronald J. Podhajsky , Kristel L. Ambrosius
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.
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公开(公告)号：US10543038B2
公开(公告)日：2020-01-28
申请号：US15401156
申请日：2017-01-09
Applicant: COVIDIEN LP
Inventor： Ronald J. Podhajsky
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.
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公开(公告)号：US10265119B2
公开(公告)日：2019-04-23
申请号：US14173391
申请日：2014-02-05
Applicant: COVIDIEN LP
Inventor： Nikolay A. Kharin , Ronald J. Podhajsky , William Scott Darrow , Arlen J. Reschke
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.
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公开(公告)号：US10206732B2
公开(公告)日：2019-02-19
申请号：US15679398
申请日：2017-08-17
Applicant: COVIDIEN LP
Inventor： Ronald J. Podhajsky , Kristel L. Ambrosius
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.
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Patent Agency Ranking
公开(公告)号：US09833286B2
公开(公告)日：2017-12-05
申请号：US13903668
申请日：2013-05-28
Applicant: COVIDIEN LP
Inventor： Ronald J. Podhajsky
CPC classification number: A61B18/1815 , A61B18/18 , A61B2018/00023 , A61B2018/00196 , A61B2018/00642 , A61B2018/1869
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.
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公开(公告)号：US20170112563A1
公开(公告)日：2017-04-27
申请号：US15401156
申请日：2017-01-09
Applicant: COVIDIEN LP
Inventor： Ronald J. Podhajsky
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.
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公开(公告)号：US20230057799A1
公开(公告)日：2023-02-23
申请号：US17981218
申请日：2022-11-04
Applicant: Covidien LP
Inventor： Ronald J. Podhajsky
IPC: A61B18/12
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.
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公开(公告)号：US20200214759A1
公开(公告)日：2020-07-09
申请号：US16818202
申请日：2020-03-13
Applicant: Covidien LP
Inventor： Ronald J. Podhajsky
IPC: A61B18/12
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.
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公开(公告)号：US09763727B2
公开(公告)日：2017-09-19
申请号：US14630256
申请日：2015-02-24
Applicant: COVIDIEN LP
Inventor： Ronald J. Podhajsky , William S. Darrow , Kristel L. Ambrosius
CPC classification number: A61B18/14 , A61B18/1442 , A61B18/149 , A61B2018/00107
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.
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