公开(公告)号：US20160030104A1

公开(公告)日：2016-02-04

申请号：US14736417

申请日：2015-06-11

Applicant: COVIDIEN LP

Inventor： JAMES A. GILBERT ,  JOSHUA H. JOHNSON

IPC: A61B18/12 ,  H05K1/18 ,  H05K1/11

CPC classification number: A61B18/1206 ,  A61B18/1233 ,  A61B2018/1286 ,  H05K1/11 ,  H05K1/162 ,  H05K1/18 ,  H05K2201/10015

Abstract: The present disclosure is directed to an electrosurgical generator an H-bridge and a tank driven by the H-bridge. The tank includes a transformer having a primary winding and a secondary winding. The secondary winding includes a first coil and a second coil. In the electrosurgical generator, a capacitor is connected in series between the first coil and the second coil.

Abstract translation: 本公开涉及电外科发生器，H桥和由H桥驱动的罐。 该箱包括具有初级绕组和次级绕组的变压器。 次级绕组包括第一线圈和第二线圈。 在电外科发生器中，电容器串联连接在第一线圈和第二线圈之间。

公开(公告)号：US20130178848A1

公开(公告)日：2013-07-11

申请号：US13777234

申请日：2013-02-26

Applicant: Covidien LP

Inventor： JAMES A. GILBERT ,  CALVIN S. BROMFIELD, JR.

IPC: A61B18/12

CPC classification number: A61B18/1206 ,  A61B2018/1273 ,  A61B2018/1293

Abstract: An electrosurgical system includes an electrosurgical generator, a power source configured to deliver power to at least one load connected to the generator, a master configured to generate an initial pulse, the initial pulse cooperating with a first floating power supply configured to create an electrical connection between at least one first load and the power source, and a plurality of slaves connected in series to the master, wherein a first slave is configured to generate a subsequent pulse based on the initial pulse, the subsequent pulse cooperating with a second floating power supply configured to create an electrical connection between at least one second load and the power source, the subsequent pulse configured to cause an ensuing slave to generate an additional pulse, the additional pulse cooperating with a corresponding floating power supply configured to create an electrical connection between at least one additional load and the power source.

Abstract translation: 电外科系统包括电外科发生器，被配置为向连接到发生器的至少一个负载输送功率的电源，被配置为产生初始脉冲的主器件，初始脉冲与配置成产生电连接的第一浮动电源协作 在至少一个第一负载和电源之间，以及与主装置串联连接的多个从动装置，其中，第一从动装置被配置为基于初始脉冲产生后续脉冲，随后的脉冲与第二浮动电源 被配置为在至少一个第二负载和所述电源之间创建电连接，所述随后的脉冲被配置为使随后的从机产生附加脉冲，所述附加脉冲与相应的浮动电源协作，所述相应的浮动电源被配置为在之间创建电连接 至少一个额外的负载和电源。

公开(公告)号：US20160023021A1

公开(公告)日：2016-01-28

申请号：US14797301

申请日：2015-07-13

Applicant: COVIDIEN LP

Inventor： XIAOSEN LIU ,  ADRIAN I. COLLI-MENCHI ,  JAMES A. GILBERT ,  DANIEL A. FRIEDRICHS ,  KEITH W. MALANG ,  EDGAR SANCHEZ-SINENCIO

IPC: A61N7/02 ,  A61B17/3209 ,  A61B17/32

CPC classification number: A61N7/022 ,  A61B17/320068 ,  A61B17/320092 ,  A61B17/3209 ,  A61B2017/0003 ,  A61B2017/00106 ,  A61B2018/0063 ,  A61B2018/00726 ,  A61B2018/00827 ,  A61B2018/00845 ,  A61N7/00 ,  B06B1/0261 ,  B06B2201/76

Abstract: An ultrasonic motion generator includes a non-resonant inverter, an ultrasonic transducer, and a comparator. The non-resonant inverter inverts direct current (DC) to alternating current (AC) having a first frequency. The ultrasonic transducer is electrically coupled with the non-resonant inverter and generates an ultrasonic motion based on the inverted AC. The comparator automatically detects a deviation of the first frequency from a resonant frequency of the ultrasonic transducer based on motion current passing through the ultrasonic transducer and generates an output signal based on the deviation to drive the non-resonant inverter.

Abstract translation: 超声波运动发生器包括非谐振反相器，超声波换能器和比较器。 非谐振逆变器将直流（DC）反相到具有第一频率的交流电（AC）。 超声波换能器与非谐振逆变器电耦合，并产生基于倒置AC的超声波运动。 比较器基于通过超声换能器的运动电流自动检测第一频率与超声换能器的谐振频率的偏差，并且基于偏差产生输出信号以驱动非谐振逆变器。

公开(公告)号：US20150331020A1

公开(公告)日：2015-11-19

申请号：US14808981

申请日：2015-07-24

Applicant: COVIDIEN LP

Inventor： JAMES A. GILBERT

IPC: G01R19/28 ,  G01R1/20

CPC classification number: G01R19/28 ,  A61B18/1206 ,  A61B18/1402 ,  A61B18/1445 ,  A61B2018/00827 ,  G01R1/20 ,  G01R15/181

Abstract: A current sensor includes a Rogowski coil disposed on a flexible printed circuit board with at least one active lead passing through the Rogowski coil.

Abstract translation: 电流传感器包括设置在柔性印刷电路板上的Rogowski线圈，其中至少一个有源引线穿过Rogowski线圈。

公开(公告)号：US20150119871A1

公开(公告)日：2015-04-30

申请号：US14190830

申请日：2014-02-26

Applicant: COVIDIEN LP

Inventor： JOSHUA H. JOHNSON ,  JAMES A. GILBERT

IPC: A61B18/12

CPC classification number: A61B18/1206 ,  A61B18/16 ,  A61B2018/00577 ,  A61B2018/00589 ,  A61B2018/00601 ,  A61B2018/0063

Abstract: 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.

Abstract translation: 本公开涉及一种电外科发生器，其包括构造成输出能量的箱和构造成驱动罐的H形桥。 发电机还包括一个扼流圈。 扼流器阻止由H桥产生的共模电流，并为该槽提供漏电感。

公开(公告)号：US20150088117A1

公开(公告)日：2015-03-26

申请号：US14320762

申请日：2014-07-01

Applicant: COVIDIEN LP

Inventor： JAMES A. GILBERT ,  MARK A. JOHNSTON ,  AARON MATTMILLER ,  JOSHUA H. JOHNSON

IPC: A61B18/12

CPC classification number: 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

Abstract: A method of improving efficiency of an electrosurgical generator is presented, the method including controlling an output of an electrosurgical generator by converting a direct current (DC) to an alternating current (AC) using an inverter, and sensing a current and a voltage at an output of the inverter. The method further includes the steps of determining a power level based on the sensed voltage and the sensed current, determining an efficiency of the electrosurgical generator, and inserting a predetermined integer number of off cycles when the efficiency of the electrosurgical generator reaches a threshold power efficiency.

Abstract translation: 提出了一种提高电外科发生器效率的方法，该方法包括通过使用逆变器将直流（DC）转换为交流电（AC）来控制电外科发生器的输出，并且感测电流和电压 输出变频器。 该方法还包括以下步骤：当电外科发生器的效率达到阈值功率效率时，基于检测到的电压和感测电流确定电外科生成器的效率，并且插入预定的整数倍的关闭周期 。

公开(公告)号：US20140376269A1

公开(公告)日：2014-12-25

申请号：US14174551

申请日：2014-02-06

Applicant: COVIDIEN LP

Inventor： JOSHUA H. JOHNSON ,  JAMES A. GILBERT

IPC: H02M3/335

CPC classification number: A61B18/1206 ,  A61B2017/0019 ,  A61B2018/00684 ,  A61B2018/00761 ,  A61B2018/1286 ,  H02M3/335 ,  H02M3/33507 ,  H02M3/33523 ,  H02M7/537 ,  H02M2007/4815

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140167733A1

公开(公告)日：2014-06-19

申请号：US14069585

申请日：2013-11-01

Applicant: COVIDIEN LP

Inventor： DEAN C. BUCK ,  JAMES A. GILBERT

IPC: H01F5/02 ,  G01R19/10

CPC classification number: G01R19/10 ,  G01R15/181 ,  H01F5/003

Abstract: In accordance with one aspect of the present disclosure, a current sensor configured to measure an AC current of a first conductor includes an outer coil having a first portion and a second portion. Each of the first and second portions are disposed about the first conductor passing through a center of the outer coil. The current sensor further includes an inner conductor disposed within the first and second portions of the outer coil and connected to each of the first and second portions of the outer coil.

Abstract translation: 根据本公开的一个方面，配置成测量第一导体的AC电流的电流传感器包括具有第一部分和第二部分的外部线圈。 第一部分和第二部分中的每一个围绕穿过外部线圈的中心的第一导体设置。 电流传感器还包括设置在外部线圈的第一和第二部分内并连接到外部线圈的每个第一和第二部分的内部导体。

公开(公告)号：US20190151008A1

公开(公告)日：2019-05-23

申请号：US16258823

申请日：2019-01-28

Applicant: COVIDIEN LP

Inventor： JAMES A. GILBERT

IPC: A61B18/12

Abstract: An electrosurgical generator is disclosed. The electrosurgical generator includes: a power supply configured to output DC power; an inverter coupled to the power supply, the inverter including a plurality of switching elements; and a controller coupled to the inverter and configured to signal the inverter to simultaneously generate based on the DC power a radio frequency heating waveform and an electroporation waveform.

公开(公告)号：US20180356367A1

公开(公告)日：2018-12-13

申请号：US15617151

申请日：2017-06-08

Applicant: COVIDIEN LP

Inventor： JAMES A. GILBERT

IPC: G01N29/14 ,  A61B8/14 ,  G01M3/24 ,  G01H1/00 ,  G01N29/36 ,  A61B8/00

Abstract: An ultrasonic transducer and generator assembly and method for controlling the assembly are disclosed. The method includes sensing a current signal and a voltage signal at the transducer, differentiating the voltage signal, multiplying the differentiated voltage signal by a bulk capacitance value to determine a bulk capacitance current signal, determining the difference between the current signal and the bulk capacitance current signal to determine a motional current signal corresponding to mechanical motion of the transducer, determining an updated bulk capacitance value based on the determined motional current signal and the bulk capacitance current signal, generating a transducer signal based on the motional current signal, and driving the transducer with the transducer signal. The method may further include filtering the difference between the current signal and the bulk capacitance current signal using a band-pass filter. The updated bulk capacitance may be determined using a least mean squares adaptive filter.