Method and device for preventing plaque formation in coronary arteries
    51.
    发明申请
    Method and device for preventing plaque formation in coronary arteries 失效
    用于预防冠状动脉斑块形成的方法和装置

    公开(公告)号:US20050283099A1

    公开(公告)日:2005-12-22

    申请号:US11203756

    申请日:2005-08-15

    IPC分类号: A61N1/05 A61N1/32 A61H1/02

    CPC分类号: A61N1/326 A61N1/0587

    摘要: A method and device for preventing plaque build-up in a coronary artery includes providing an electrical field generating device, and generating an electrical field in the coronary artery to prevent plaque build-up in the coronary artery. The method further includes sensing the heart rhythm and generating the electrical field after a depolarization wave in the heart. The electrical field is generated by circuitry, in one embodiment implanted circuitry, connected to leads which are epicardially or intracardially positioned on the heart.

    摘要翻译: 用于防止冠状动脉斑块积聚的方法和装置包括提供电场产生装置,并且在冠状动脉中产生电场以防止冠状动脉中的斑块积聚。 该方法还包括感测心脏节律并在心脏中去极化波之后产生电场。 电场由电路产生,在一个实施例中,植入电路连接到心外膜或心内置于心脏上的引线。

    Adaptive safety pacing
    53.
    发明申请
    Adaptive safety pacing 有权
    适应性安全起搏

    公开(公告)号:US20050137640A1

    公开(公告)日:2005-06-23

    申请号:US10952345

    申请日:2004-09-28

    IPC分类号: A61N1/362 A61N1/37

    CPC分类号: A61N1/3712

    摘要: Methods and systems involve adjusting an energy used for safety pacing based on the capture threshold. The safety pacing energy may be adjusted prior to a capture threshold test. During the capture threshold test, backup safety paces are delivered using the adjusted pacing energy. Following suspension of automatic capture verification, the device may enter a suspension mode. During the suspension mode, safety pacing pulses are delivered using a pacing energy adjusted based on capture threshold.

    摘要翻译: 方法和系统包括根据捕获阈值调整用于安全起搏的能量。 可以在捕获阈值测试之前调整安全起搏能量。 在捕获阈值测试期间,使用调整的起搏能量传送备用安全步伐。 在停止自动捕获验证之后,设备可能进入暂停模式。 在悬架模式下,使用基于捕获阈值调整的起搏能量来传送安全起搏脉冲。

    Apparatus and method for outputting heart sounds
    54.
    发明申请
    Apparatus and method for outputting heart sounds 有权
    用于输出心音的装置和方法

    公开(公告)号:US20050137490A1

    公开(公告)日:2005-06-23

    申请号:US11037276

    申请日:2005-01-18

    摘要: An apparatus for outputting heart sounds includes an implantable system and an external system. The implantable system includes a sensor for generating sensed signals representing detected heart sounds, an interface circuit and a control circuit for receiving the sensed signals, generating data representing the heart sounds therefrom, and transmitting the data to the external system via the interface circuit. The external system includes an interface circuit for communicating with the implantable system, and a control circuit for receiving the data representing the heart sounds and for generating control signals that cause an output device to generate outputs representing the sounds. The implantable system may also include a sensor(s) for detecting cardiac electrical signals. In this case, outputs representing the cardiac electrical signals are also output.

    摘要翻译: 用于输出心音的装置包括可植入系统和外部系统。 可植入系统包括用于产生表示检测到的心音的感测信号的传感器,接口电路和用于接收感测信号的控制电路,产生表示心音的数据,以及经由接口电路将数据发送到外部系统。 外部系统包括用于与可植入系统进行通信的接口电路,以及用于接收表示心脏声音的数据的控制电路,以及用于产生使输出设备产生表示声音的输出的控制信号。 可植入系统还可以包括用于检测心脏电信号的传感器。 在这种情况下,还输出表示心电信号的输出。

    Rate management during automatic capture verification
    56.
    发明授权
    Rate management during automatic capture verification 有权
    自动捕获验证期间的费率管理

    公开(公告)号:US06473649B1

    公开(公告)日:2002-10-29

    申请号:US09470269

    申请日:1999-12-22

    IPC分类号: A61N137

    CPC分类号: A61N1/3712 Y10S128/901

    摘要: An implantable cardiac rhythm management device capable of automatically detecting intrinsic and evoked response of a patient's heart and suitable for use during capture verification. The device of the present invention may operate in an automatic capture verification mode, wherein an electrocardiogram signal of a patient's heart is received and used by the device to determine whether a stimulation pulse evokes a response by the patient's heart. The device suspends the automatic capture verification mode and/or adjust the detection threshold dependent upon detected and/or measured noise, a determined amplitude of evoked response, a determined modulation in the evoked response, or detected and/or measured artifact. Further, the sensing circuit of the rhythm management device of the present invention reduces afterpotentials that result due to delivery of the stimulation pulses.

    摘要翻译: 一种植入式心律管理装置,其能够自动检测患者心脏的内在和诱发反应并适于在捕获验证期间使用。 本发明的装置可以在自动捕获验证模式下操作,其中由装置接收并使用患者心脏的心电图信号,以确定刺激脉冲是否引起患者心脏的反应。 取决于检测到的和/或测量的噪声,所确定的诱发响应幅度,诱发响应中的确定调制,或检测到的和/或测量的伪影,该装置暂停自动捕获验证模式和/或调整检测阈值。 此外,本发明的节律管理装置的感测电路减少了由于刺激脉冲的传送而导致的后电位。

    Pseudo-fusion management during automatic capture verification
    57.
    发明授权
    Pseudo-fusion management during automatic capture verification 有权
    自动捕获验证期间的伪融合管理

    公开(公告)号:US06275731B1

    公开(公告)日:2001-08-14

    申请号:US09474193

    申请日:1999-12-29

    IPC分类号: A61N1365

    CPC分类号: A61N1/3712

    摘要: A method for reducing the affects of intrinsic detection latency in a cardiac rhythm management device, wherein said method is initiated immediately prior to delivering a stimulation pulse to the heart tissue. A coincidence of intrinsic and cardiac rhythm management initiated stimulus or the delivery of a stimulation pulse proximate the time of an intrinsic event due to intrinsic detection latency may results in delivery of unnecessary backup stimulus and/or imprecise determination of a pacing threshold. When stimulating the heart, the timing sequence for delivering a stimulation pulse typically depends upon the timing of a previous intrinsic or device initiated event. Further, the method of the present invention reduces the affects of intrinsic detection latency thereby facilitating improved detection of capture and determination of capture threshold for minimizing power consumption while assuring therapeutic efficacy.

    摘要翻译: 一种减轻心律管理装置中内在检测延迟的影响的方法,其中所述方法在将刺激脉冲传递到心脏组织之前立即开始。 由于内在的检测潜伏期,固有和心律管理发起的刺激或接近内在事件时间的刺激脉冲的传递的巧合可能导致递送不必要的备份刺激和/或不精确地确定起搏阈值。 当刺激心脏时,用于递送刺激脉冲的定时序列通常取决于先前的固有或设备启动事件的时序。 此外,本发明的方法减少了内在检测潜能的影响,从而有助于提高捕获捕获阈值的检测和捕获阈值的确定,以最大限度地降低功耗,同时确保治疗效果。

    Circuit-based devices and methods for pulse control of endocardial pacing in cardiac rhythm management
    60.
    发明授权
    Circuit-based devices and methods for pulse control of endocardial pacing in cardiac rhythm management 有权
    基于电路的心脏心律管理脉搏控制心脏起搏的装置和方法

    公开(公告)号:US08812105B2

    公开(公告)日:2014-08-19

    申请号:US13282163

    申请日:2011-10-26

    IPC分类号: A61N1/362

    CPC分类号: A61N1/3627

    摘要: Tools and methods are particularly suited for certain cardiac conditions involving use of a catheter for pacing of the right and left ventricles from a lead in the right ventricle, e.g., to facilitate mechanically and/or electrically synchronous contractions for resynchronization. Certain aspects involve pacing and/or mapping by generating pulses for delivery to a cardiac site useful for improving heart function as measured, e.g., by QRS width, fractionation, late LV activation timing, mechanical synchronicity of free wall and septal wall, effective throughput/pressure, or a combination thereof. In one embodiment, an implantable pulse generator includes circuitry for generating pacing profiles, with signals of opposite polarities, specifically selected for delivery on electrodes at a site near the septal wall of a right ventricle of the heart.

    摘要翻译: 工具和方法特别适合于某些心脏状况,包括使用导管将右心室和左心室从右心室中的引线起搏,例如为了促进用于再同步的机械和/或电同步收缩。 某些方面涉及起搏和/或作图,通过产生用于递送到心脏部位的脉搏,用于改善心脏功能,例如通过QRS宽度,分级,晚期LV激活时间,游离壁和间隔壁的机械同步性,有效吞吐量/ 压力或其组合。 在一个实施例中,可植入脉冲发生器包括用于产生具有相反极性的信号的起搏曲线的电路,其具体选择用于在靠近心脏右心室隔壁的位置处的电极上传送。