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1. 发明授权

US11602392B2 Surgical instruments and systems incorporating machine learning based tissue identification and methods thereof 有权
公开(公告)号：US11602392B2
公开(公告)日：2023-03-14
申请号：US17032133
申请日：2020-09-25
申请人： Covidien LP
发明人： Joshua H. Johnson
IPC分类号： A61B18/14 , G16H50/20 , A61B18/00
摘要： A surgical system includes an end effector assembly having first and second jaw members, a generator, and one or more machine learning applications. The first and/or second jaw member is movable relative to the other from a spaced-apart position to an approximated position for grasping tissue therebetween. The jaw members are configured to conduct energy therebetween and through tissue grasped therebetween. The generator includes an energy output configured to supply energy to the jaw members, a main controller configured to control the energy output, and sensor circuitry configured to sense impedance and/or power. The machine learning application(s) is configured to determine a type of tissue grasped between the first and second jaw members based upon the impedance and/or power sensed by the sensor circuitry.

2. 发明授权

US11191584B2 Dead-time optimization of resonant inverters based on an input voltage of a tank 有权
公开(公告)号：US11191584B2
公开(公告)日：2021-12-07
申请号：US15358441
申请日：2016-11-22
申请人： COVIDIEN LP
发明人： Joshua H. Johnson , James A. Gilbert
IPC分类号： H02M3/335 , A61B18/12 , H02M7/537 , A61B18/00 , H02M7/48 , A61B17/00
摘要： The present disclosure is directed to an electrosurgical generator including a resonant inverter having an H-bridge and a tank. A sensor array measures at least one property of the tank. A pulse width modulation (PWM) controller outputs a first PWM timing signal and a second PWM timing signal to the H-bridge. The PWM controller controls a dead-time between the first PWM timing signal and the second PWM timing signal based on the at least one property measured by the sensor array.

3. 发明授权

US10786298B2 Surgical instruments and systems incorporating machine learning based tissue identification and methods thereof 有权
公开(公告)号：US10786298B2
公开(公告)日：2020-09-29
申请号：US15444422
申请日：2017-02-28
申请人： COVIDIEN LP
发明人： Joshua H. Johnson
IPC分类号： A61B18/14 , G16H50/20 , A61B18/00 , G06F19/00
摘要： A surgical system includes an end effector assembly having first and second jaw members, a generator, and one or more machine learning applications. The first and/or second jaw member is movable relative to the other from a spaced-apart position to an approximated position for grasping tissue therebetween. The jaw members are configured to conduct energy therebetween and through tissue grasped therebetween. The generator includes an energy output configured to supply energy to the jaw members, a main controller configured to control the energy output, and sensor circuitry configured to sense impedance and/or power. The machine learning application(s) is configured to determine a type of tissue grasped between the first and second jaw members based upon the impedance and/or power sensed by the sensor circuitry.

4. 发明授权

US09270202B2 Constant power inverter with crest factor control 有权
标题翻译：恒功率逆变器，具有波峰因数控制
公开(公告)号：US09270202B2
公开(公告)日：2016-02-23
申请号：US14096341
申请日：2013-12-04
申请人： COVIDIEN LP
发明人： Joshua H. Johnson , Donald Tonn
IPC分类号： H02M7/5395 , A61B18/12 , A61B18/14 , A61B18/00 , A61B18/16 , H02M1/00
CPC分类号： H02M7/5395 , A61B18/1206 , A61B18/1402 , A61B18/1445 , A61B2018/00702 , A61B2018/0072 , A61B2018/00767 , A61B2018/165 , H02M2001/007
摘要： An electrosurgical generator is provided. The generator includes a DC-DC buck converter configured to output a DC waveform, the DC-DC buck converter including at least one first switching element operated at a first duty cycle; a DC-AC boost converter coupled to the DC-DC buck converter and including at least one second switching element operated at a second duty cycle, the DC-AC boost converter configured to convert the DC waveform to generate at least one electrosurgical waveform; and a controller coupled to the DC-DC buck converter and the DC-AC boost converter and configured to adjust the first duty cycle and the second duty cycle to operate the at least one electrosurgical waveform in at least one of constant current, constant voltage, or constant power modes.
摘要翻译：提供电外科发生器。所述发电机包括配置为输出DC波形的DC-DC降压转换器，所述DC-DC降压转换器包括以第一占空比操作的至少一个第一开关元件; DC-AC升压转换器，其耦合到所述DC-DC降压转换器并且包括在第二占空比下操作的至少一个第二开关元件，所述DC-AC升压转换器被配置为转换所述DC波形以产生至少一个电外科波形; 以及控制器，其耦合到所述DC-DC降压转换器和所述DC-AC升压转换器，并且被配置为调整所述第一占空比和所述第二占空比以在所述至少一个电外科波形中以恒定电流，恒定电压，或恒定功率模式。

5. 发明授权

US10898257B2 Resonant inverter with a common mode choke 有权
公开(公告)号：US10898257B2
公开(公告)日：2021-01-26
申请号：US15585308
申请日：2017-05-03
申请人： COVIDIEN LP
发明人： Joshua H. Johnson , James A. Gilbert
IPC分类号： A61B18/12 , A61B18/16 , A61B18/00
摘要： The present disclosure is directed to an electrosurgical generator including a tank configured to output energy and an H-bridge configured to drive the tank. The generator also includes a choke. The choke impedes a common mode current generated by the H-bridge and provides a leakage inductance for the tank.

6. 发明授权

US09839469B2 Systems and methods for improving efficiency of electrosurgical generators 有权
公开(公告)号：US09839469B2
公开(公告)日：2017-12-12
申请号：US14320804
申请日：2014-07-01
申请人： COVIDIEN LP
发明人： James A. Gilbert , Mark A. Johnston , Aaron Mattmiller , Joshua H. Johnson
IPC分类号： A61B18/12 , A61B18/00 , A61B18/14
CPC分类号： A61B18/1206 , A61B18/14 , A61B2018/00577 , A61B2018/00601 , A61B2018/00648 , A61B2018/00666 , A61B2018/00702 , A61B2018/00708 , A61B2018/00726 , A61B2018/00732 , A61B2018/00779 , A61B2018/00827 , A61B2018/00875 , A61B2018/00892 , A61B2018/1266
摘要： An electrosurgical generator is presented including a radio frequency (RF) amplifier coupled to an electrical energy source and configured to generate electrosurgical energy, the RF amplifier including an inverter configured to convert a direct current (DC) to an alternating current (AC), and a plurality of sensors configured to sense voltage and current of the generated electrosurgical energy. The electrosurgical generator further includes a controller coupled to the RF amplifier and the plurality of sensors. The electrosurgical may be further configured to determine a power level based on the sensed voltage and the sensed current, determine an efficiency of the electrosurgical generator, and insert a predetermined integer number of off cycles when the efficiency of the electrosurgical generator reaches a threshold power efficiency.

7. 发明授权

US09559594B2 Dead-time optimization of resonant inverters 有权
标题翻译：谐振逆变器的死区优化
公开(公告)号：US09559594B2
公开(公告)日：2017-01-31
申请号：US14174551
申请日：2014-02-06
申请人： COVIDIEN LP
发明人： Joshua H. Johnson , James A. Gilbert
IPC分类号： H02M3/335 , A61B18/12 , A61B18/00
CPC分类号： A61B18/1206 , A61B2017/0019 , A61B2018/00684 , A61B2018/00761 , A61B2018/1286 , H02M3/335 , H02M3/33507 , H02M3/33523 , H02M7/537 , H02M2007/4815
摘要： The present disclosure is directed to an electrosurgical generator including a resonant inverter having an H-bridge and a tank. A sensor array measures at least one property of the tank. A pulse width modulation (PWM) controller outputs a first PWM timing signal and a second PWM timing signal to the H-bridge. The PWM controller controls a dead-time between the first PWM timing signal and the second PWM timing signal based on the at least one property measured by the sensor array.
摘要翻译：本公开涉及一种电外科发生器，其包括具有H桥和罐的谐振逆变器。传感器阵列可以测量油箱的至少一个特性。脉冲宽度调制（PWM）控制器向H桥输出第一PWM定时信号和第二PWM定时信号。 PWM控制器基于由传感器阵列测量的至少一个特性来控制第一PWM定时信号和第二PWM定时信号之间的死区时间。

8. 发明授权

US11135001B2 Systems and methods for generating electrosurgical energy using a multistage power converter 有权
公开(公告)号：US11135001B2
公开(公告)日：2021-10-05
申请号：US15866604
申请日：2018-01-10
申请人： COVIDIEN LP
发明人： Joshua H. Johnson
IPC分类号： A61B18/12 , A61B18/00
摘要： The electrosurgical systems and methods according to the present disclosure use a multi-stage power converter for generating electrosurgical energy. The electrosurgical systems include an electrosurgical generator having a power converter coupled to an electrical energy source and configured to generate electrosurgical energy. The power converter includes a boost converter configured to convert a first direct current from the electrical energy source to a second direct current, and a phase-shifted pulse width modulation (PS-PWM) resonant inverter configured to invert the second direct current to an alternating current. The electrosurgical generator also includes a plurality of sensors configured to sense a voltage and a current of the generated electrosurgical energy and a controller coupled to the power converter and the plurality of sensors. The controller includes a signal processor configured to determine tissue impedance based on the sensed voltage and current, and an output controller configured to select one of a plurality of output characteristics based on the determined tissue impedance, and to generate control signals to control the boost converter and the PS-PWM resonant inverter, according to the selected output characteristic.

9. 发明申请

US20210007795A1 SURGICAL INSTRUMENTS AND SYSTEMS INCORPORATING MACHINE LEARNING BASED TISSUE IDENTIFICATION AND METHODS THEREOF 有权
公开(公告)号：US20210007795A1
公开(公告)日：2021-01-14
申请号：US17032133
申请日：2020-09-25
申请人： Covidien LP
发明人： Joshua H. Johnson
IPC分类号： A61B18/14 , G16H50/20
摘要： A surgical system includes an end effector assembly having first and second jaw members, a generator, and one or more machine learning applications. The first and/or second jaw member is movable relative to the other from a spaced-apart position to an approximated position for grasping tissue therebetween. The jaw members are configured to conduct energy therebetween and through tissue grasped therebetween. The generator includes an energy output configured to supply energy to the jaw members, a main controller configured to control the energy output, and sensor circuitry configured to sense impedance and/or power. The machine learning application(s) is configured to determine a type of tissue grasped between the first and second jaw members based upon the impedance and/or power sensed by the sensor circuitry.

10. 发明授权

US10105172B2 Radiofrequency amplifier impedance optimization 有权
公开(公告)号：US10105172B2
公开(公告)日：2018-10-23
申请号：US14445745
申请日：2014-07-29
申请人： COVIDIEN LP
发明人： Joshua H. Johnson , James A. Gilbert
IPC分类号： A61B18/12 , H02M7/5387 , H02M7/48 , A61B18/00
摘要： The present disclosure is directed to an electrosurgical generator including a resonant inverter having an H-bridge and a tank. The generator also includes a pulse width modulation (PWM) controller configured to output PWM timing signals to the H-bridge. A switch is configured to select a modality from among a plurality of modalities and the PWM controller adjusts a frequency of the PWM timing signals based on the selected modality.

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