Pace pulse detector for an implantable medical device

    公开(公告)号:US10226197B2

    公开(公告)日:2019-03-12

    申请号:US14687053

    申请日:2015-04-15

    Abstract: In situations in which an implantable medical device (e.g., a subcutaneous ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the subcutaneous ICD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the ICD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the ICD includes a first pace pulse detector configured to obtain a sensed electrical signal and analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics and a second pace pulse detector configured to obtain the sensed electrical signal and analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics.

    POWER-EFFICIENT CHOPPER AMPLIFIER
    4.
    发明申请
    POWER-EFFICIENT CHOPPER AMPLIFIER 有权
    功率有效的CHOPPER放大器

    公开(公告)号:US20160065133A1

    公开(公告)日:2016-03-03

    申请号:US14474858

    申请日:2014-09-02

    Abstract: In an example, an electrical circuit device for amplifying a physiological signal includes a modulation unit configured to receive an input signal, to modulate the input signal to produce a modulated signal. The device also includes an amplification and transconductance unit configured to amplify an amplitude of the modulated signal and increase a transconductance of the modulated signal to produce a transconductance enhanced modulated and amplified signal, where the amplification and transconductance unit comprises at least a first complementary pair of transistors and a second complementary pair of transistors configured to receive the modulated signal and to amplify and increase the transconductance of the modulated signal. The device also includes a demodulation unit configured to receive the transconductance enhanced modulated and amplified signal and to demodulate the signal.

    Abstract translation: 在一个示例中,用于放大生理信号的电路装置包括被配置为接收输入信号的调制单元,以调制输入信号以产生调制信号。 该器件还包括放大和跨导单元,被配置为放大调制信号的幅度并增加调制信号的跨导以产生跨导增强的调制和放大信号,其中放大和跨导单元包括至少第一互补对 晶体管和配置成接收调制信号并放大和增加调制信号的跨导的晶体管的第二互补对。 该装置还包括被配置为接收跨导增强的调制和放大信号并解调信号的解调单元。

    CLOCK SYNCHRONIZATION IN AN IMPLANTABLE MEDICAL DEVICE SYSTEM
    5.
    发明申请
    CLOCK SYNCHRONIZATION IN AN IMPLANTABLE MEDICAL DEVICE SYSTEM 有权
    可插入医疗设备系统中的时钟同步

    公开(公告)号:US20130138991A1

    公开(公告)日:2013-05-30

    申请号:US13746818

    申请日:2013-01-22

    CPC classification number: G06F1/12 A61N1/37288 G06F1/06

    Abstract: This disclosure is directed to the synchronization of clocks of a secondary implantable medical device (IMD) to a clock of a primary IMD. The secondary IMD includes a communications clock. The communications clock may be synchronized based on at least one received communications pulse. The secondary IMD further includes a general purpose clock different than the communications clock. The general purpose clock may be synchronized based on at least one received power pulse. The communications clock may also be synchronized based on the at least one received power pulse.

    Abstract translation: 本公开涉及二次可植入医疗装置(IMD)的时钟与主IMD的时钟的同步。 辅助IMD包括通信时钟。 通信时钟可以基于至少一个接收到的通信脉冲来同步。 次级IMD还包括与通信时钟不同的通用时钟。 可以基于至少一个接收的功率脉冲同步通用时钟。 通信时钟也可以基于至少一个接收的功率脉冲来同步。

    Pace pulse detector for a medical device

    公开(公告)号:US12076153B2

    公开(公告)日:2024-09-03

    申请号:US17321167

    申请日:2021-05-14

    CPC classification number: A61B5/363 A61B5/346 A61B5/686 A61N1/371

    Abstract: In situations in which an implantable medical device (e.g., a subcutaneous ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the subcutaneous ICD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the ICD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the ICD includes a first pace pulse detector configured to obtain a sensed electrical signal and analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics and a second pace pulse detector configured to obtain the sensed electrical signal and analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics.

    Tissue conduction communication using ramped drive signal

    公开(公告)号:US11045654B2

    公开(公告)日:2021-06-29

    申请号:US16204172

    申请日:2018-11-29

    Abstract: A device, such as an IMD, having a tissue conductance communication (TCC) transmitter controls a drive signal circuit and a polarity switching circuit by a controller of the TCC transmitter to generate an alternating current (AC) ramp on signal having a peak amplitude that is stepped up from a starting peak-to-peak amplitude to an ending peak-to-peak amplitude according to a step increment and step up interval. The TCC transmitter is further controlled to transmit the AC ramp on signal from the drive signal circuit and the polarity switching circuit via a coupling capacitor coupled to a transmitting electrode vector coupleable to the IMD. After the AC ramp on signal, the TCC transmitter transmits at least one TCC signal to a receiving device.

    Supply noise rejection in implantable medical devices
    9.
    发明授权
    Supply noise rejection in implantable medical devices 有权
    在植入式医疗设备中提供噪声抑制

    公开(公告)号:US09002470B2

    公开(公告)日:2015-04-07

    申请号:US14060649

    申请日:2013-10-23

    Abstract: The present invention provides an implantable medical device having at least two electrodes coupled to the device housing. The electrodes may be configured for sensing physiological signals such as cardiac signals and alternatively for providing an electrical stimulation therapy such as a pacing or defibrillation therapy. In accordance with aspects of the disclosure, the device housing provides a hermetic enclosure that includes a first housing section that is hermetically coupled to a second housing section. At least one of the at least two electrodes is coupled to an exterior surface of the first housing section that encloses the battery components of the device. The first housing section is electrically insulated from the cathode and anode of the battery.

    Abstract translation: 本发明提供一种可植入医疗装置,其具有耦合到装置壳体的至少两个电极。 电极可以被配置用于感测诸如心脏信号的生理信号,或者用于提供诸如起搏或除颤疗法之类的电刺激治疗。 根据本公开的方面,设备壳体提供密封外壳,其包括密封地联接到第二壳体部分的第一壳体部分。 所述至少两个电极中的至少一个耦合到所述第一壳体部分的包围所述装置的电池组件的外表面。 第一壳体部分与电池的阴极和阳极电绝缘。

    VOLTAGE SUPPLY AND METHOD WITH TWO REFERENCES HAVING DIFFERING ACCURACY AND POWER CONSUMPTION
    10.
    发明申请
    VOLTAGE SUPPLY AND METHOD WITH TWO REFERENCES HAVING DIFFERING ACCURACY AND POWER CONSUMPTION 审中-公开
    具有两种参考的电压供应和方法具有不同的精度和功耗

    公开(公告)号:US20130234692A1

    公开(公告)日:2013-09-12

    申请号:US13662884

    申请日:2012-10-29

    CPC classification number: G05F3/02 G05F3/242 G05F3/30

    Abstract: Voltage supply and method having a first reference and a second reference. The first reference has an operation mode configured to supply a first reference voltage at a first accuracy and consume an operation power and a standby mode configured to consume standby power less than the operation power. The second reference is configured to supply a second reference having a second accuracy less than the first accuracy of the first reference and which consumes a second reference power less than the operation power of the first reference, the second reference voltage being trimmable based, at least in part, on a comparison of the first reference voltage to the second reference voltage.

    Abstract translation: 电压供应和方法具有第一参考和第二参考。 第一参考具有被配置为以第一精度提供第一参考电压并且消耗操作功率的操作模式和被配置为消耗小于操作功率的待机功率的待机模式。 第二参考被配置为提供具有小于第一参考的第一精度的第二精度并且消耗小于第一参考的操作功率的第二参考功率的第二参考,第二参考电压至少基于可修整 部分地,在第一参考电压与第二参考电压的比较中。

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