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    • 11. 发明申请
    • METHOD AND SYSTEM FOR USING COMMON SUBCHANNEL TO ASSESS THE OPERATING CHARACTERISTICS OF TRANSDUCERS
    • 使用通用子通道评估变送器运行特性的方法和系统
    • US20090171342A1
    • 2009-07-02
    • US11967217
    • 2007-12-30
    • Gleb V. KLIMOVITCHTimothy E. CiciarelliShena H. Park
    • Gleb V. KLIMOVITCHTimothy E. CiciarelliShena H. Park
    • A61B18/12
    • A61B18/1206A61B18/1492A61B2018/00363A61B2018/00577A61B2018/00702A61B2018/00767A61B2018/00791A61B2018/00797A61B2018/00815
    • A system and method for using a common subchannel to assess operating characteristics of one of a plurality of transducers that are coupled to said subchannel is disclosed. The plurality of transducers are divided into subsets and each subset is coupled to a subchannel. The system is configured to activate a selected transducer on the subchannel and the subchannel delivers operational information on the activated transducer. The present invention reduces the number of subchannels required to collect information on the plurality of transducers. The present invention may utilize one or more loading conditions to take at least one measurement, which at least one measurement is then used to derive operational information on the transducer. In one configuration, information on the amount of energy being delivered to the transducer is collected simultaneously with information on the operating temperature. In another embodiment only the temperature is measured. The present invention permits a more compact ablation device to be constructed based on the invention's ability to reduce the total number of subchannels required to collect transducer information.
    • 公开了一种用于使用公共子信道来评估耦合到所述子信道的多个换能器之一的操作特性的系统和方法。 多个换能器被划分为子集,并且每个子集耦合到子信道。 该系统被配置为激活子信道上的所选换能器,并且子通道在激活的换能器上传送操作信息。 本发明减少了在多个换能器上收集信息所需的子信道的数量。 本发明可以利用一个或多个负载条件进行至少一个测量,然后使用至少一个测量来导出换能器上的操作信息。 在一个配置中,关于传送到换能器的能量的信息与关于工作温度的信息同时收集。 在另一个实施例中,仅测量温度。 本发明允许基于本发明减少收集换能器信息所需的子通道总数的能力来构建更紧凑的消融装置。
    • 18. 发明申请
    • Switching methods and apparatus
    • 切换方法和装置
    • US20080183169A1
    • 2008-07-31
    • US11700074
    • 2007-01-31
    • Gleb V. KlimovitchTimothy E. CiciarelliShena H. Park
    • Gleb V. KlimovitchTimothy E. CiciarelliShena H. Park
    • A61B18/14
    • A61B18/1492A61B18/1206A61B2018/00351A61B2018/00577A61B2018/00702A61B2018/00791A61B2018/00916A61B2018/124A61B2018/1823A61B2018/1861A61N7/02
    • Embodiments of the invention controlling power distribution in an ablation control apparatus or the like. In one embodiment, a power switching apparatus comprises a first switch assembly having an input end to receive a power input signal, the first switch assembly having a plurality of output channels; a second switch assembly coupled to the output channels of the first switch assembly; a plurality of power receiving members coupled to the second switch assembly; and a controller controlling the first switch assembly to selectively transmit the power input signal to the output channels one at a time in a cyclical manner according to a first switching rate. The controller controls the second switch assembly to transmit the power input signal from the output channels of the first switch assembly to one subset of the power receiving members at a time according to a second switching rate, so as to transmit the power input signal to a subset of power receiving members one power receiving member at a time within the subset of power receiving members according to the first switching rate.
    • 控制消融控制装置等中的配电的本发明的实施例。 在一个实施例中,功率开关装置包括具有输入端以接收功率输入信号的第一开关组件,第一开关组件具有多个输出通道; 耦合到第一开关组件的输出通道的第二开关组件; 耦合到所述第二开关组件的多个电力接收构件; 以及控制器,其控制所述第一开关组件,以根据第一开关速率以循环方式一次一个地将所述功率输入信号选择性地发送到所述输出通道。 控制器控制第二开关组件,以将功率输入信号从第一开关组件的输出通道按照第二切换速率一次传输到功率接收部件的一个子集,以将功率输入信号传输到 电力接收构件的子集,根据第一开关率,在电力接收构件的子集内的一个时间处有一个电力接收构件。
    • 19. 发明授权
    • Active overload detection and protection circuit for implantable cardiac
therapy devices
    • 用于可植入心脏治疗装置的主动过载检测和保护电路
    • US5968083A
    • 1999-10-19
    • US968242
    • 1997-11-12
    • Timothy E. CiciarelliStephen T. Archer
    • Timothy E. CiciarelliStephen T. Archer
    • A61N1/08A61N1/37
    • A61N1/37A61N1/08A61N1/3718
    • An active overload detection and protection circuit for protecting a host device (e.g., an implantable cardiac therapy device) from potential damage due to high voltage transients applied to an I/O node thereof. The protection circuit includes an I/O circuit coupled to the I/O node, the I/O circuit having low-impedance and high-impedance modes, a current overload detection circuit coupled to the I/O circuit which detects a current overload condition induced by a high voltage transient, and which generates an overload detect signal in response, and, a mode changing circuit which changes the mode of the I/O circuit from the low-impedance mode to the high-impedance mode in response to the overload detect signal. The protection circuit further includes a reset circuit which generates a reset signal a prescribed time after the overload detect signal is generated, wherein the mode changing circuit is responsive to the reset signal to change the mode of the I/O circuit. The current overload detection circuit includes circuitry which ensures that the overload detect signal is generated only when an overload current flowing through the I/O circuit is greater than a prescribed threshold level for at least a prescribed time period. The mode changing circuit includes logic circuitry which generates a mode change control signal only when both the overload detect signal and a first control signal are present.
    • 用于保护主机设备(例如,可植入心脏治疗设备)的主动过载检测和保护电路免受由于施加到其I / O节点的高电压瞬变而引起的潜在损害。 保护电路包括耦合到I / O节点的I / O电路,I / O电路具有低阻抗和高阻抗模式,耦合到I / O电路的电流过载检测电路,其检测电流过载条件 由高电压瞬变引起的并且产生响应的过载检测信号;以及模式改变电路,其响应于过载而将I / O电路的模式从低阻抗模式改变为高阻抗模式 检测信号。 保护电路还包括复位电路,其在产生过载检测信号之后的规定时间产生复位信号,其中模式改变电路响应于复位信号改变I / O电路的模式。 电流过载检测电路包括确保仅在流过I / O电路的过载电流大于规定阈值电平至少规定时间段时才产生过载检测信号的电路。 模式改变电路包括仅在存在过载检测信号和第一控制信号的情况下才产生模式改变控制信号的逻辑电路。