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1. 发明授权

US5899929A System for inducing tachycardia utilizing near field T-wave sensing 失效
标题翻译：用于诱导使用近场T波感测的心动过速的系统
公开(公告)号：US5899929A
公开(公告)日：1999-05-04
申请号：US014178
申请日：1998-01-27
申请人： David Thompson , Hendrikus A. Westendorp , Malcolm J.S. Begemann
发明人： David Thompson , Hendrikus A. Westendorp , Malcolm J.S. Begemann
IPC分类号： A61N1/362 , A61N1/37 , A61N1/38 , A61N1/39
CPC分类号： A61N1/3702 , A61N1/3621 , A61N1/385
摘要： A system and method are provided for inducing ventricular tachycardia in a patient to enable testing to determine the optimum parameters for anti-tachycardia stimulation. The implantable device provides for overdrive pacing of the heart for a short sequence, followed by delivery of a series of pulse pairs. Each pulse pair has a first stimulus pulse delivered at the same or similar overdrive rate, and an inducing pulse which is delivered in timed relation to the evoked T-wave, preferably during the falling edge portion of the T-wave. In this way, each cycle the inducing pulse is timed for efficaciously inducing tachycardia. The timing of the inducing pulse is enhanced by near field sensing of the T-wave at about the location where the pulses are delivered, preferably using bipolar sensing and/or sense circuitry designed to recover the signal with an optimum time response. In one preferred embodiment, near field sensing is enabled by use of an FDC circuit. In another preferred embodiment, near field sensing is provided by a pacing lead having bipolar electrodes where the ring electrode is spaced less than 1 mm proximal to the tip electrode.
摘要翻译：提供了一种系统和方法，用于诱导患者的室性心动过速以使测试能够确定用于抗心动过速刺激的最佳参数。可植入装置提供用于短序列的心脏超速起搏，随后递送一系列脉冲对。每个脉冲对具有以相同或相似的过驱动速率传送的第一激励脉冲，以及诱导脉冲，优选地在T波的下降沿部分期间以与激发的T波定时关系递送。以这种方式，诱导脉冲的每个周期被定时以有效诱发心动过速。诱导脉冲的定时通过在输送脉冲的位置处的T波的近场感测来增强，优选地使用设计成以最佳时间响应恢复信号的双极感测和/或感测电路。在一个优选实施例中，通过使用FDC电路来实现近场感测。在另一个优选实施例中，近场感测由具有双极电极的起搏引线提供，其中环形电极在尖端电极附近间隔小于1mm。

2. 发明授权

US5843138A Pacemaker system with enhanced programmable modification capacity 失效
标题翻译：起搏器系统具有增强的可编程修改能力
公开(公告)号：US5843138A
公开(公告)日：1998-12-01
申请号：US890435
申请日：1997-07-09
申请人： Xander Evers , Johannes S. van der Veen , Malcolm J.S. Begemann
发明人： Xander Evers , Johannes S. van der Veen , Malcolm J.S. Begemann
IPC分类号： A61N1/372 , A61N1/37
CPC分类号： A61N1/37264 , A61N1/37211 , A61N1/37252
摘要： A pacemaker system is provided which provides for more flexibility in re-programming of the control software, or program which is controlling an implanted pacemaker. The system comprises an external programmer device which is capable both of programming the implanted device in a conventional way, and also downloading new control software to the implanted device, subject to predetermined system conditions. All implanted devices, e.g., pacemakers within the system of the invention, share a hardware platform, and are identified as belonging to a given one of a plurality of groups, each group being characterized as providing therapy aimed at a different condition. Each pacemaker also carries type data, indicating the type of pacemaker within the group, and a set of permissions data representative of different types within the group to which it is permitted to be programmed. Upon interrogating the implanted device, the programmer determines whether the device is part of the system, what its group and type is, and whether it is able to modify the device.
摘要翻译：提供了一种起搏器系统，其提供了对控制软件或正在控制植入式心脏起搏器的程序的重新编程的更大灵活性。该系统包括外部编程器装置，其能够以常规方式编程植入的装置，并且还可以在预定的系统条件下将新的控制软件下载到植入装置。所有植入的装置，例如本发明的系统内的起搏器，共享一个硬件平台，并且被识别为属于多个组中给定的一组，每个组的特征在于提供针对不同状况的治疗。每个起搏器还携带类型数据，指示组内起搏器的类型，以及一组表示允许编程的组内不同类型的许可数据。在询问植入设备时，程序员确定设备是系统的一部分，其组和类型是什么，以及是否能够修改设备。

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