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115 条记录 (耗时 0.052 秒)

    Implantable medical device having means for discriminating between true R-waves and ventricular fibrillation
    91.
    发明授权
    Implantable medical device having means for discriminating between true R-waves and ventricular fibrillation 失效
    具有用于区分真实R波和心室颤动的装置的可植入医疗装置

    公开(公告)号：US5623936A

    公开(公告)日：1997-04-29

    申请号：US567658

    申请日：1995-12-05

    申请人： Kelly H. McClure

    发明人： Kelly H. McClure

    IPC分类号： A61B5/0404 ,  A61B5/0456 ,  A61N1/365 ,  A61N1/37 ,  A61N1/39 ,  A61B5/046

    CPC分类号： A61N1/3704 ,  A61N1/365 ,  A61N1/3956

    摘要： An improved "VF immune" cardiac event detector for an implantable medical device consists of high-frequency and a low-frequency delta converters coupled to an intracardiac signal. The high-frequency delta converter is tuned to be responsive to R-waves and VF waveforms. However, the low-frequency delta converter is tuned to be responsive only to VF waveforms. By monitoring the difference between the outputs of the high-frequency and the low-frequency delta converters, the system can effectively discriminate between "true" R-waves and VF waveforms.

    摘要翻译： 用于可植入医疗设备的改进的“VF免疫”心脏事件检测器由耦合到心内信号的高频和低频Δ转换器组成。 高频德尔塔转换器被调谐以响应于R波和VF波形。 然而，低频德尔塔转换器被调谐为只响应VF波形。 通过监测高频和低频三角形转换器的输出之间的差异，系统可以有效区分“真实”R波和VF波形。

    Controlling stimulation parameters of implanted tissue stimulators
    95.
    发明授权
    Controlling stimulation parameters of implanted tissue stimulators 有权
    控制植入组织刺激器的刺激参数

    公开(公告)号：US07801602B2

    公开(公告)日：2010-09-21

    申请号：US11388836

    申请日：2006-03-24

    申请人： Kelly H. McClure ,  Rafael Carbunaru ,  George Vamos

    发明人： Kelly H. McClure ,  Rafael Carbunaru ,  George Vamos

    IPC分类号： A61N1/00

    CPC分类号： A61N1/36146 ,  A61N1/36003 ,  A61N1/37211 ,  A61N1/3787

    摘要： Systems and techniques for controlling the stimulation of tissue. In one aspect, an apparatus includes an implantable stimulation device to elicit a response in a tissue by delivering one or more stimuli. The stimulation device includes a stimulus delivery element to deliver the one or more stimuli to elicit the response, a memory to store a range value identifying a range of values of a stimulation parameter relative to a first value, and a controller to control delivery of the stimuli by the stimulus delivery element in accordance with the range value. The stimulation parameter characterizes the stimuli to be delivered by the stimulation device.

    摘要翻译： 用于控制组织刺激的系统和技术。 在一个方面，一种装置包括可植入的刺激装置，通过递送一个或多个刺激来在组织中引发反应。 刺激装置包括刺激递送元件以递送一个或多个刺激以引起响应;存储器，用于存储识别相对于第一值的刺激参数的值的范围的范围值;以及控制器，用于控制 由刺激递送元素根据范围值刺激。 刺激参数表征刺激装置传递的刺激。

    System and method of automatically adjusting sensitivity in an implantable cardiac stimulation device
    98.
    发明授权
    System and method of automatically adjusting sensitivity in an implantable cardiac stimulation device 有权
    在可植入心脏刺激装置中自动调节灵敏度的系统和方法

    公开(公告)号：US06539259B1

    公开(公告)日：2003-03-25

    申请号：US09354244

    申请日：1999-07-15

    申请人： Lisa P. Weinberg ,  Gene A. Bornzin ,  Kelly H. McClure

    发明人： Lisa P. Weinberg ,  Gene A. Bornzin ,  Kelly H. McClure

    IPC分类号： A61N118

    CPC分类号： A61N1/368 ,  A61N1/3704

    摘要： A system and method are disclosed for automatically adjusting the sense amplifier sensitivity based on the sensing threshold of the undesired signals (i.e., far-field signals or undesired near-field signals). Specifically, R-wave sensitivity is based on the peak amplitude of the T-waves. Since the relationship between R-waves and T-waves is so repeatable, high confidence is achieved in setting the sensitivity above the T-wave sensing threshold. For atrial sensing, P-wave sensitivity is based on the sensing threshold of R-waves and/or T-waves, whichever is larger. Several embodiments are disclosed for determining the threshold for sensing the undesired signals, such as, double sensing until single sensing occurs, or otherwise detecting the peak amplitude of two or more cardiac signals. Additional error checking may be employed, particularly for atrial sensitivity adjustment, to ensure proper detection of the sensing threshold for the undesired signals in patients with heart block: including analysis of the respective amplitude, cardiac signal duration, and time relationships to appropriately classify the cardiac signals.

    摘要翻译： 公开了一种系统和方法，用于基于不需要的信号（即，远场信号或不期望的近场信号）的感测阈值自动调整感测放大器灵敏度。 具体来说，R波灵敏度基于T波的峰值振幅。 由于R波和T波之间的关系是如此重复，所以在将灵敏度设置在T波感测阈值之上时，可以获得高置信度。 对于心房感测，P波灵敏度基于R波和/或T波的感测阈值，以较大者为准。 公开了用于确定用于感测不需要的信号的阈值的几个实施例，例如直到发生单次感测的双重感测，或以其它方式检测两个或更多个心脏信号的峰值振幅。 可以采用额外的错误检查，特别是对于心房敏感性调整，以确保正确检测心脏阻塞患者中不需要的信号的感测阈值：包括相应幅度，心脏信号持续时间和时间关系的分析以适当地分类心脏 信号。

    Physiologically based adjustment of stimulation parameters to an implantable electronic stimulator to reduce data transmission rate
    99.
    发明授权
    Physiologically based adjustment of stimulation parameters to an implantable electronic stimulator to reduce data transmission rate 有权
    基于生理学的调整刺激参数到可植入电子刺激器以降低数据传输速率

    公开(公告)号：US06522928B2

    公开(公告)日：2003-02-18

    申请号：US09812151

    申请日：2001-03-19

    申请人： Todd K. Whitehurst ,  Kelly H. McClure

    发明人： Todd K. Whitehurst ,  Kelly H. McClure

    IPC分类号： A61N132

    CPC分类号： A61N1/36003 ,  Y10S128/903

    摘要： A Functional Electro Stimulation (FES) system provides physiologically based adjustment of stimulation parameters to achieve a high update rate for nerve and muscle stimulation at a reduced data transmission rate. FES systems generate electrical signals to stimulate nerves and muscles to provide movement for paraplegics and quadriplegics. Known FES systems comprise a multiplicity of microstimulators that are controlled by a single master controller. Control signals are transmitted over an RF link. A complete set of stimulation parameters comprising pulse amplitude, pulse width, and pulse frequency is initially transmitted to set initial stimulation parameters. Subsequent functional control of muscles is achieved by transmitting an increment to a single stimulation parameter. In a preferred embodiment the physiological behavior of the human body is copied by incrementing the pulse rate.

    摘要翻译： 功能电刺激（FES）系统提供基于生理学的刺激参数调整，以在降低的数据传输速率下实现神经和肌肉刺激的高更新率。 FES系统产生电信号以刺激神经和肌肉，为截瘫和四肢麻痹提供运动。 已知的FES系统包括由单个主控制器控制的多个微型激励器。 控制信号通过RF链路传输。 初始传输包括脉冲幅度，脉冲宽度和脉冲频率的完整的一组刺激参数以设定初始刺激参数。 通过将增量传递到单个刺激参数来实现肌肉的后续功能控制。 在优选实施例中，通过增加脉搏率来复制人体的生理行为。

    Efficient generation of sensing signals in an implantable medical device such as a pacemaker or ICD
    100.
    发明授权
    Efficient generation of sensing signals in an implantable medical device such as a pacemaker or ICD 失效
    在诸如起搏器或ICD的可植入医疗装置中高效地产生感测信号

    公开(公告)号：US06275734B1

    公开(公告)日：2001-08-14

    申请号：US09223422

    申请日：1998-12-30

    申请人： Kelly H. McClure ,  Gabriel Mouchawar

    发明人： Kelly H. McClure ,  Gabriel Mouchawar

    IPC分类号： A61N137

    CPC分类号： A61N1/3704 ,  A61N1/3925

    摘要： An implantable cardiac device such as a pacemaker or an implantable cardioverter defibrillator (ICD) that stores a broad band electrogram signal in response to the detecting of a particular cardiac event. The system includes an external programmer which is capable of accessing the stored electrogram via a telemetry circuit so that the stored electrogram can be downloaded and reviewed on a display of the external programmer. The external programmer is also equipped with a digital filter emulator that is capable of emulating the filtering of the broad band electrogram signal that is being provided to the processor of the implanted cardiac device. The emulator therefore allows a treating physician to review an emulation of the waveform that the processor of the implanted cardiac device is seeing when the processor is initiating the delivery of therapeutic electrical stimulation to the heart.

    摘要翻译： 可植入心脏装置，例如起搏器或植入式心律转复除颤器（ICD），其响应于特定心脏事件的检测而存储宽带电描记图信号。 该系统包括外部编程器，其能够经由遥测电路访问存储的电描记图，以便可以在外部编程器的显示器上下载和检查所存储的电描记图。 外部编程器还配备有数字滤波器仿真器，其能够模拟正在提供给植入的心脏装置的处理器的宽带电描记信号的滤波。 因此，仿真器允许治疗医师检查当处理器开始向心脏递送治疗性电刺激时植入的心脏设备的处理器看到的波形的仿真。