-
公开(公告)号：US11683105B2
公开(公告)日：2023-06-20
申请号：US17011096
申请日：2020-09-03
Applicant: Covidien LP
Inventor： Donald W. Heckel , Fred B. Pelton , William D. Faulkner , Donald L. Tonn
IPC: A61B18/12 , H04B15/02 , H04B17/345 , A61B18/00
CPC classification number: H04B15/02 , A61B18/1206 , A61B18/1233 , H04B17/345 , A61B2018/00732 , A61B2018/00845 , A61B2018/00875 , A61B2018/00892 , A61B2018/00898 , A61B2018/1293
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.
-
公开(公告)号：US20220378494A1
公开(公告)日：2022-12-01
申请号：US17331812
申请日：2021-05-27
Applicant: Covidien LP
Inventor： James D. Allen, IV , William D. Faulkner , Duane E. Kerr
Abstract: An electrosurgical system includes jaw members having a cutting element extending therebetween and a generator configured to: provide minimal power to the cutting element to maintain a pre-dissection temperature thereof; sense a change in resistance of the cutting element and ramp up power to a dissection temperature; regulate the temperature of the cutting element by regulating power; and terminate power to the cutting element to allow the cutting element to cool to the pre-dissection temperature before providing power back to the cutting element.
-
公开(公告)号：US12251155B2
公开(公告)日：2025-03-18
申请号：US17331812
申请日：2021-05-27
Applicant: Covidien LP
Inventor： James D. Allen, IV , William D. Faulkner , Duane E. Kerr
Abstract: An electrosurgical system includes jaw members having a cutting element extending therebetween and a generator configured to: provide minimal power to the cutting element to maintain a pre-dissection temperature thereof; sense a change in resistance of the cutting element and ramp up power to a dissection temperature; regulate the temperature of the cutting element by regulating power; and terminate power to the cutting element to allow the cutting element to cool to the pre-dissection temperature before providing power back to the cutting element.
-
公开(公告)号：US11103298B2
公开(公告)日：2021-08-31
申请号：US15798515
申请日：2017-10-31
Applicant: COVIDIEN LP
Inventor： William D. Faulkner , Robert H. Wham
Abstract: The disclosed systems and methods relate to detecting coupling or uncoupling of an external cable from an output port of an electrosurgical generator when a cable detection switch is unavailable or inoperable. The electrosurgical generator includes internal cabling having a first end portion connected to the output port and a second end portion. The disclosed technology includes supplying power from the electrosurgical generator, measuring current and voltage at the second end portion of the internal cabling within the electrosurgical generator, accessing one or more parameters associated with internal cable compensation corresponding to the internal cabling within the electrosurgical generator, and determining coupling or uncoupling of an external cable from the output port based on the measured current, the measured voltage, and the one or more parameters associated with internal cable compensation.
-
公开(公告)号：US10771167B2
公开(公告)日：2020-09-08
申请号：US15801656
申请日：2017-11-02
Applicant: COVIDIEN LP
Inventor： Donald W. Heckel , William D. Faulkner , Donald L. Tonn , Fred B. Pelton
IPC: A61B18/12 , H04B15/02 , H04B17/345 , A61B18/00
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.
-
Patent Agency Ranking
公开(公告)号：US20250143774A1
公开(公告)日：2025-05-08
申请号：US19014837
申请日：2025-01-09
Applicant: Covidien LP
Inventor： Donald W. Heckel , Donald L. Tonn , William D. Faulkner
Abstract: A electrosurgical generator and system includes a first radio frequency (RF) source and a second RF source, a first controller configured to output a first control signal to the first RF source to generate a first RF waveform, and a second controller configured to output a second control signal to the second RF source to generate a second RF waveform. The electrosurgical generator further includes a first output port and a second output port configured to provide the respective first RF waveform and the second RF waveform for treatment of tissue.
-
公开(公告)号：US20220378490A1
公开(公告)日：2022-12-01
申请号：US17331742
申请日：2021-05-27
Applicant: Covidien LP
Inventor： James D. Allen, IV , William D. Faulkner , Duane E. Kerr
IPC: A61B18/08
Abstract: An electrosurgical device includes jaw members, a thermal cutting element coupled to one of the jaw members. When the jaw members are in an approximated position, power is delivered to the thermal cutting element to maintain the temperature of the thermal cutting element at an operating temperature for cutting sealed tissue grasped between the jaw members. When the jaw members are in the spaced apart position, power is delivered to the thermal cutting element to maintain the temperature of the thermal cutting element at a standby setpoint temperature. In response to a determination of contact between tissue and the thermal cutting element when the jaw members are in the spaced apart position, power is delivered to the thermal cutting element to increase the temperature of the thermal cutting element from the standby setpoint temperature to a cutting setpoint temperature for dissecting tissue.
-
公开(公告)号：US20210369324A1
公开(公告)日：2021-12-02
申请号：US17403977
申请日：2021-08-17
Applicant: Covidien LP
Inventor： Robert H. Wham , Edward L. Brannan , William D. Faulkner , Mark A. Johnston , Aaron G. Mattmiller , Donald L. Tonn
IPC: A61B18/12
Abstract: A controller for an electrosurgical generator includes an RF inverter, a signal processor, a software compensator, a hardware compensator, and an RF inverter controller. The RF inverter generates an electrosurgical waveform and the signal processor outputs a measured value of at least one of a voltage, a current, or power of the electrosurgical waveform. The software compensator generates a desired value for at least one of the voltage, the current, or the power of the electrosurgical waveform, and the hardware compensator generates a phase shift based on the measured value and the desired value. The RF inverter controller generates a pulse-width modulation (PWM) signal based on the phase shift to control the RF inverter.
-
公开(公告)号：US20210322085A1
公开(公告)日：2021-10-21
申请号：US17359812
申请日：2021-06-28
Applicant: Covidien LP
Inventor： Robert H. Wham , William D. Faulkner , Donald L. Tonn
IPC: A61B18/12
Abstract: The present disclosure relates to electrosurgical systems and methods for controlling electrical treatment energy in connection with electrical arcs. A method in accordance with the present disclosure includes providing electrical treatment energy to an instrument based on an indicated electrical energy level, accessing voltage signal values over time relating to voltage of the electrical treatment energy and/or current signal values over time relating to current of the electrical treatment energy, determining whether an arc generated by the instrument is an arc to be maintained or an arc to be extinguished based on a threshold value and at least one of the voltage signal values or the current signal values, and controlling the electrical treatment energy based on determining that the arc is an arc to be extinguished.
-
公开(公告)号：US11090106B2
公开(公告)日：2021-08-17
申请号：US15098822
申请日：2016-04-14
Applicant: COVIDIEN LP
Inventor： Robert H. Wham , Donald L. Tonn , Aaron Mattmiller , William D. Faulkner , Edward L. Brannan , Mark A. Johnston
Abstract: A controller for an electrosurgical generator includes an RF inverter, a signal processor, a software compensator, a hardware compensator, and an RF inverter controller. The RF inverter generates an electrosurgical waveform and the signal processor outputs a measured value of at least one of a voltage, a current, or power of the electrosurgical waveform. The software compensator generates a desired value for at least one of the voltage, the current, or the power of the electrosurgical waveform, and the hardware compensator generates a phase shift based on the measured value and the desired value. The RF inverter controller generates a pulse-width modulation (PWM) signal based on the phase shift to control the RF inverter.
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.016 seconds)
