-
1.发明授权Implantable atrial defibrillator having an intermittently activated fibrillation detector 失效具有间歇激活的原纤颤检测器的可植入心房除颤器
公开(公告)号：US5464432A
公开(公告)日：1995-11-07
申请号：US232767
申请日：1994-04-25
IPC分类号： A61N1/39
CPC分类号： A61N1/3956 , A61N1/395
摘要： An implantable automatic atrial defibrillator powered by a depletable battery power source conserves battery power for extending the predicted life of the defibrillator by intermittently detecting for atrial fibrillation. The atrial defibrillator includes a real time clock which, at spaced apart predetermined times, causes heart activity data to be stored in a memory. Thereafter, a normally deactivated atrial fibrillation detector is activated for processing the stored data to detect for atrial fibrillation.
摘要翻译： 由可消耗电池电源供电的植入式自动心房除颤器通过间歇检测心房颤动而节省电池电力，延长除颤器的预期寿命。 心房除颤器包括实时时钟，其以间隔开的预定时间将心脏活动数据存储在存储器中。 此后，激活正常失活的心房颤动检测器用于处理存储的数据以检测心房颤动。
-
公开(公告)号：US5251624A
公开(公告)日：1993-10-12
申请号：US902998
申请日：1992-06-22
CPC分类号： A61N1/3956 , A61N1/3906 , A61N1/3912 , A61N1/395
摘要： A pulse generator for use in implantable atrial defibrillator provides cardiovertinq electrical energy to the atria of a heart through at least one lead having a pair of electrodes associated with the atria of the heart. The pulse generator includes a depletable, low voltage, power source such as a battery. A charging circuit coupled to the battery includes a flyback transformer for converting the battery voltage to low duty cycle pulsating high voltage electrical energy to store the high voltage electrical energy in a storage capacitor coupled to the charging circuit. A crosspoint switch selectively couples the storage capacitor to the electrodes for applying a portion of the stored electrical energy to the atria of the heart for cardioverting the atria of the heart.
-
3.发明授权Atrial defibrillator and method for providing interval timing prior to cardioversion 失效心房除颤器和在心脏复律前提供间隔时间的方法
公开(公告)号：US5207219A
公开(公告)日：1993-05-04
申请号：US965195
申请日：1992-10-23
IPC分类号： A61N1/39
CPC分类号： A61N1/3956 , A61N1/395 , A61N1/3987
摘要： An implantable atrial defibrillator provides cardioverting electrical energy to the atria of a human heart in need of cardioversion. The atrial defibrillator includes a first detector for detecting ventricular activations of the heart, a second detector for detecting atrial activity of the heart, and an atrial fibrillation detector responsive to the second detector for determining when the atria of the heart are in need of cardioversion. The atrial defibrillator also includes a cardioverting stage for applying the cardioverting electrical energy to the atria of the heart when the atria of the heart are in need of cardioversion and when the time between immediately successive ventricular activations is greater than a preselected minimum time interval.
-
公开(公告)号：US08170662B2
公开(公告)日：2012-05-01
申请号：US11462301
申请日：2006-08-03
IPC分类号： A61N1/36
CPC分类号： H01G9/28 , A61N1/375 , A61N1/39 , A61N1/3968 , H01G9/008 , H01L28/40 , H02J7/0013 , H02J7/345
摘要： One aspect of this disclosure relates to an apparatus for providing a selective capacitance. An embodiment of the apparatus includes a first and second capacitor in a stack, and a switching circuit connected between the first and second capacitors. The switching circuit has at least two states, and is adapted to provide a first defibrillation capacitance in a first state and a second defibrillation capacitance in a second state. A switching circuit embodiment includes a field effect transistor (FET) adapted to have a source connected to the first capacitor and a drain connected to the second capacitor, a bipolar junction transistor (BJT) adapted to have an emitter connected to the source of the FET and a collector connected to a gate of the FET, a first current source connected to the collector of the BJT, and a second current source connected to a base of the BJT.
摘要翻译： 本公开的一个方面涉及一种用于提供选择性电容的装置。 该装置的实施例包括堆叠中的第一和第二电容器，以及连接在第一和第二电容器之间的开关电路。 开关电路具有至少两个状态，并且适于在第二状态下提供第一除颤电容和第二除颤电容。 开关电路实施例包括适于具有连接到第一电容器的源极和连接到第二电容器的漏极的场效应晶体管（FET），适于具有连接到FET源极的发射极的双极结型晶体管（BJT） 和连接到FET的栅极的集电极，连接到BJT的集电极的第一电流源和连接到BJT的基极的第二电流源。
-
公开(公告)号：US07991470B2
公开(公告)日：2011-08-02
申请号：US12056684
申请日：2008-03-27
申请人： Jaeho Kim , Joseph M. Bocek , Eric G. Lovett
发明人： Jaeho Kim , Joseph M. Bocek , Eric G. Lovett
IPC分类号： A61N1/365
CPC分类号： A61B5/0464 , A61N1/3925 , A61N1/3962
摘要： A cardiac rhythm management device is configured to discriminate between ventricular and supraventricular tachycardias (referred to as SVT/VT discrimination) by utilizing a morphology criterion in which the morphology of electrogram waveforms during ventricular beats are analyzed to determine if the beats are normally conducted. After the delivery of a cardioversion/defibrillation shock, however, the intraventricular conduction system is left in a modified state which alters the subsequently generated electrogram signal. Use of the morphology criterion for SVT/VT discrimination is discontinued after delivery of such a shock and resumed after a predetermined minimum number of normally conducted ventricular beats has been detected.
摘要翻译： 心律管理装置被配置为通过利用形态学标准来区分心室和室上性心动过速（称为SVT / VT鉴别），其中分析心室搏动时的电描记图波形的形态以确定节拍是否正常进行。 然而，在输出心脏复律/除颤休克之后，心室内传导系统处于改变随后产生的电描记图信号的修改状态。 在发生这种休克后，停止使用SVT / VT鉴别的形态学标准，并且在检测到预定的最小数量的正常进行的心室搏动之后恢复。
-
公开(公告)号：US20110160786A1
公开(公告)日：2011-06-30
申请号：US12976876
申请日：2010-12-22
申请人： Scott R. Stubbs , Joseph M. Bocek , Hiten J. Doshi
发明人： Scott R. Stubbs , Joseph M. Bocek , Hiten J. Doshi
CPC分类号： A61N1/37 , A61N1/3688 , A61N1/3718
摘要： An implantable device, such as a pacer, defibrillator, or other cardiac rhythm management device, can include a failsafe backup, such as a separate and independent safety core that can assume control over operation of the implantable device from a primary controller. In an example, the safety core can include a normal first safety core operating mode and a magnetic resonance imaging (MRI) second safety core operating mode that can provide different functionality from the normal first safety core operating mode.
摘要翻译： 诸如起搏器，除颤器或其他心律管理装置的可植入装置可以包括故障安全备用，诸如独立且独立的安全核心，其可以承担对来自主控制器的可植入装置的操作的控制。 在一个示例中，安全核心可以包括正常的第一安全核心操作模式和可以提供与正常的第一安全核心操作模式不同的功能的磁共振成像（MRI）第二安全核心操作模式。
-
公开(公告)号：US07818056B2
公开(公告)日：2010-10-19
申请号：US11089185
申请日：2005-03-24
申请人： Jaeho Kim , Joseph M. Bocek , Julie A. Thompson , Eric G. Lovett
发明人： Jaeho Kim , Joseph M. Bocek , Julie A. Thompson , Eric G. Lovett
IPC分类号： A61N1/39
CPC分类号： A61N1/3962 , A61B5/04525 , A61B5/7264 , A61N1/3622 , A61N1/3925 , A61N1/395
摘要： Systems and methods are described for classifying a cardiac rhythm. A cardiac rhythm is classified using a classification process that includes a plurality of cardiac rhythm discriminators. Each rhythm discriminator provides an independent classification of the cardiac rhythm. The classification process is modified if the modification is likely to produce enhanced classification results. The rhythm is reclassified using the modified classification process.
摘要翻译： 描述了用于分类心律的系统和方法。 使用包括多个心律识别器的分类处理对心律进行分类。 每个节律鉴别器提供心脏节律的独立分类。 如果修改可能产生增强的分类结果，则修改分类过程。 使用修改的分类过程重新分类节奏。
-
公开(公告)号：US07756578B2
公开(公告)日：2010-07-13
申请号：US11276213
申请日：2006-02-17
申请人： Jaeho Kim , Joseph M. Bocek
发明人： Jaeho Kim , Joseph M. Bocek
IPC分类号： A61B5/0464
CPC分类号： A61B5/0464 , A61B5/7264 , A61N1/3622 , A61N1/3925 , A61N1/3962 , G06F19/00
摘要： This document discusses, among other things, systems and methods to discriminate between a ventricular tachyarrhythmia (VT) and a supraventricular tachyarrhythmia (SVT), such as upon detecting sudden onset and one-to-one tachycardia. In certain examples, a detected tachyarrhythmia is analyzed to determine whether it is sudden onset and 1:1. If so, a first fast beat is identified. One or more ventricular intervals in close proximity to the first fast beat are analyzed to determine an initial classification of either VT or SVT. The initial classification is used to adjust a morphological feature correlation coefficient (FCC) threshold. A morphology analysis is performed with the adjusted FCC threshold value to yield a secondary classification.
摘要翻译： 本文件尤其涉及区分心室性心律失常（VT）和室上性快速性心律失常（SVT）的系统和方法，例如在检测到突发性发作和一对一心动过速时。 在某些实例中，分析检测到的快速性心律失常以确定其是否突然发作和1：1。 如果是这样，首先确定快节拍。 分析紧邻第一快节拍的一个或多个心室间隔以确定VT或SVT的初始分类。 初始分类用于调整形态特征相关系数（FCC）阈值。 用调整的FCC阈值进行形态分析以产生次级分类。
-
公开(公告)号：US07599738B2
公开(公告)日：2009-10-06
申请号：US11130671
申请日：2005-05-17
IPC分类号： A61N1/362
CPC分类号： A61N1/3622 , A61N1/3682
摘要： Methods and systems are described that involve synchronized ventricular pacing that promotes sensing of atrial events. The atrioventricular pacing delay is modified based on characteristics of previously sensed atrial events. The modified AV delay is implemented relative to a first atrial event. A second AV delay is implemented relative to a second atrial event if the second atrial event is sensed during the modified AV delay. A ventricular pacing pulse is delivered following the second AV delay.
摘要翻译： 描述了涉及促进心房事件感测的同步心室起搏的方法和系统。 房室起搏延时根据以前感测到的心房事件的特征进行修改。 修改的AV延迟相对于第一次心房事件实现。 如果在修改的AV延迟期间感测到第二心房事件，则相对于第二心房事件实施第二AV延迟。 在第二次AV延迟之后递送心室起搏脉冲。
-
公开(公告)号：US07580740B2
公开(公告)日：2009-08-25
申请号：US11126594
申请日：2005-05-11
CPC分类号： A61N1/3702 , A61B5/0464 , A61N1/3622
摘要： Methods and systems are directed to detecting atrial tachyarrhythmia. A plurality of A-A intervals is detected. The detected A-A intervals are selected and used to detect atrial tachyarrhythmia. Selecting A-A intervals may be based on determining that A-A intervals are qualified. Qualified A-A intervals may be determined if a duration of the particular A-A interval falls outside a predetermined duration range, for example. Qualified A-A intervals may also be determined based on events occurring between consecutively sensed atrial events of the particular A-A interval, and whether the duration of the particular A-A interval falls within the predetermined duration range, for example.
摘要翻译： 方法和系统旨在检测房性快速性心律失常。 检测到多个A-A间隔。 检测到的A-A间隔被选择并用于检测房性快速性心律失常。 选择A-A间隔可以基于确定A-A间隔是合格的。 例如，如果特定A-A间隔的持续时间落在预定的持续时间范围之外，则可以确定合格的A-A间隔。 也可以基于特定A-A间隔的连续感测的心房事件之间发生的事件以及特定A-A间隔的持续时间是否落入预定持续时间范围内来确定合格的A-A间隔。
-
-
-
-
-
-
-
-
-
搜索结果
85 条记录 (耗时 0.029 秒)
