-
1.发明授权Implantable atrial defibrillator having therapy inhibition responsive to atrial cycle length 失效具有响应于心房周期长度的治疗抑制的可植入心房除颤器
公开(公告)号：US06018681A
公开(公告)日：2000-01-25
申请号：US984588
申请日：1997-12-03
申请人： Jaeho Kim
发明人： Jaeho Kim
IPC分类号： A61N1/39
CPC分类号： A61N1/3956 , A61N1/395
摘要： There is disclosed an atrial defibrillator including a lead system for sensing activity of a heart in or near at least on atrium of the heart, a detector for detecting atrial events from the sensed atrial activity, and a cardioverter for applying cardioverting electrical energy to the atria of the heart when the atria are in need of cardioversion. A timer determines time spans between successive detected atrial events and an inhibit stage precludes the cardioverter from applying cardioverting energy to the heart when a time span is greater than a predetermined limit.
摘要翻译： 公开了一种心房除颤器，其包括用于感测心脏至少在心房内心脏附近或其附近的心脏的活动的引导系统，用于从所感测的心房活动中检测心房事件的检测器，以及用于向心房施加心律转复电能的心律转复器 当心房需要心脏复律时。 定时器确定在连续检测到的心房事件和抑制阶段之间的时间跨度阻止了心脏复律器在时间跨度大于预定极限时向心脏施加心脏转换能量。
-
公开(公告)号：US5674253A
公开(公告)日：1997-10-07
申请号：US708218
申请日：1996-09-06
IPC分类号： A61N1/39
CPC分类号： A61N1/3931
摘要： A defibrillation system for providing post-cardiac surgery atrial cardioversion includes a lead system having defibrillation electrodes for electrical contact with the heart beneath the skin of a patient and a non-implantable external defibrillator for providing defibrillation electrical energy. An interface unit is coupled between the external defibrillator and the lead system and includes an attenuator circuit for attenuating the defibrillation electrical energy provided by the external defibrillator.
摘要翻译： 用于提供心脏外手术心房复律的除颤系统包括具有用于与患者皮肤下的心脏电接触的除颤电极的引导系统和用于提供除颤电能的非植入式外部除颤器。 接口单元耦合在外部除颤器和引导系统之间，并且包括用于衰减由外部除颤器提供的除颤电能的衰减器电路。
-
3.发明授权Defibrillation and method for cardioverting a heart and storing related activity data 失效除颤器和心脏心脏转移和存储相关活动数据的方法
公开(公告)号：US5522850A
公开(公告)日：1996-06-04
申请号：US264319
申请日：1994-06-23
申请人： Barry M. Yomtov , David P. Finch
发明人： Barry M. Yomtov , David P. Finch
IPC分类号： A61N1/39
CPC分类号： A61N1/3925 , A61N1/395
摘要： An implantable atrial defibrillator applies cardioverting electrical energy to the atria of a human heart in response to detection of an atrial fibrillation episode and stores selected data associated with the detected atrial fibrillation episode. The atrial defibrillator includes a cardiovertor which provides successive applications of cardioverting electrical energy to the atria of the heart until one of the pulses successfully cardioverts the atria. A memory system stores selected heart activity data in connection with the detected episode including heart activity data related to initial detection of the atrial fibrillation episode and heart activity data occurring from before and until after the application of the cardioverting electrical energy which successfully cardioverts the atria of the heart.
摘要翻译： 可植入心房除颤器响应于心房颤动发作的检测，将心电转换电能施加到人心脏的心房，并存储与检测到的心房颤动发作相关的所选数据。 心房除颤器包括心脏转换器，其向心脏的心房提供心脏转复电能的连续应用，直到其中一个脉搏成功地心跳心房。 存储系统存储与检测到的发作相关的选择的心脏活动数据，包括与初始检测心房纤维性颤动发作有关的心脏活动数据和从应用转换心电图之前和之后发生的心脏活动数据，其成功地将心房的心房 心脏
-
公开(公告)号：US5509925A
公开(公告)日：1996-04-23
申请号：US346484
申请日：1994-11-29
CPC分类号： A61N1/3918 , A61N1/056 , A61N1/0563 , A61N1/3956 , A61N1/3962 , A61N1/395 , A61N1/3987 , A61N2001/0585
摘要： An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrillating pulse is provided after a predetermined number of consecutive R waves are non-coincidently sensed to assure reliable synchronization. The atrial defibrillator is also operational in a marker mode wherein a number of synchronization marker pulses are delivered to the heart for detection on an externally generated electrocardiogram. The atrial fibrillation detector of the defibrillator is normally disabled and is activated when the sensed ventricular activity indicates a probability of atrial fibrillation to conserve a depletable power source. An endocardial lead is also described which ensures that the delivered atrial defibrillating electrical energy is substantially confined to the atria of the heart.
摘要翻译： 可植入心房除颤器响应于在心脏的第一和第二区域处的R波的不一致的感测，与感测到的R波同步地向心脏的心房提供除颤电脉冲。 在不一致地感测到预定数量的连续R波之后提供除颤脉冲，以确保可靠的同步。 心房除颤器还可以在标记模式中操作，其中多个同步标记脉冲被传送到心脏以便在外部产生的心电图上进行检测。 除颤器的心房颤动检测器通常被禁用，并且当感测到的心室活动指示心房颤动的概率以节省可消耗的电源时被激活。 还描述了一种心内膜导联，其确保输送的心房除颤电能基本上限于心脏的心房。
-
5.发明授权Automatic gain control and method for enabling detection of low and high amplitude depolarization activation waves of the heart and atrial defibrillator utilizing the same 失效自动增益控制和方法，能够利用该方法检测心脏和心房除颤器的低和高幅度去极化激活波
公开(公告)号：US5458621A
公开(公告)日：1995-10-17
申请号：US213119
申请日：1994-03-15
申请人： Harley White , Joseph M. Bocek
发明人： Harley White , Joseph M. Bocek
CPC分类号： A61N1/3704 , A61N1/3925 , A61N1/395
摘要： An apparatus reliably detects a depolarization activation wave of the heart. The apparatus includes a sensor in electrical contact with the heart for sensing electrical activity of the heart and including an amplifier for amplifying the sensed electrical activity according to a variable gain and providing a signal corresponding to the depolarization activation wave. The apparatus further includes an output circuit coupled to the sensor for producing an electrical output corresponding to the depolarization activation wave sensed by the sensor when the signal exceeds a threshold. The apparatus still further includes a control circuit coupled to the sensor and the output circuit for varying at least one of the gain and the threshold to maintain a predetermined sense margin between the sensed electrical activity and the gain and the threshold.
摘要翻译： 一种装置可靠地检测心脏的去极化激活波。 该装置包括与心脏电接触的传感器，用于感测心脏的电活动，并且包括放大器，用于根据可变增益放大感测的电活动并提供对应于去极化激活波的信号。 该装置还包括耦合到传感器的输出电路，用于当信号超过阈值时产生对应于由传感器感测到的去极化激活波的电输出。 该装置还包括耦合到传感器和输出电路的控制电路，用于改变增益和阈值中的至少一个，以在感测的电活动与增益和阈值之间保持预定的感测余量。
-
公开(公告)号：US5433729A
公开(公告)日：1995-07-18
申请号：US856514
申请日：1992-03-24
CPC分类号： A61N1/3918 , A61N1/056 , A61N1/0563 , A61N1/3956 , A61N1/3962 , A61N1/395 , A61N1/3987 , A61N2001/0585
摘要： An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrillating pulse is provided after a predetermined number of consecutive R waves are non-coincidently sensed to assure reliable synchronization. The atrial defibrillator is also operational in a marker mode wherein a number of synchronization marker pulses are delivered to the heart for detection on an externally generated electrocardiogram. The atrial fibrillation detector of the defibrillator is normally disabled and is activated when the sensed ventricular activity indicates a probability of atrial fibrillation to conserve a depletable power source. A plurality of lead systems are also described for use with the atrial defibrillator which reduce the quantity of electrical energy required to defibrillate the heart and ensure that the delivered atrial defibrillating electrical energy is substantially confined to the atria of the heart.
摘要翻译： 可植入心房除颤器响应于在心脏的第一和第二区域处的R波的不一致的感测，与感测到的R波同步地向心脏的心房提供除颤电脉冲。 在不一致地感测到预定数量的连续R波之后提供除颤脉冲，以确保可靠的同步。 心房除颤器还可以在标记模式中操作，其中多个同步标记脉冲被传送到心脏以便在外部产生的心电图上进行检测。 除颤器的心房颤动检测器通常被禁用，并且当感测到的心室活动指示心房颤动的概率以节省可消耗的电源时被激活。 还描述了与心房除颤器一起使用的多个引导系统，其减少了除颤心脏所需的电能的量，并确保输送的心房除颤电能基本上限于心脏的心房。
-
公开(公告)号：US5282837A
公开(公告)日：1994-02-01
申请号：US685130
申请日：1991-04-12
CPC分类号： A61N1/3918 , A61N1/056 , A61N1/0563 , A61N1/3956 , A61N1/3962 , A61N1/395 , A61N1/3987 , A61N2001/0585
摘要： An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrillating pulse is provided after a predetermined number of consecutive R waves are non-coincidently sensed to assure reliable synchronization. The atrial defibrillator is also operational in a marker mode wherein a number of synchronization marker pulses are delivered to the heart for detection on an externally generated electrocardiogram. The atrial fibrillation detector of the defibrillator is normally disabled and is activated when the sensed ventricular activity indicates a probability of atrial fibrillation to conserve a depletable power source. An endocardial lead is also described which ensures that the delivered atrial defibrillating electrical energy is substantially confined to the atria of the heart.
摘要翻译： 可植入心房除颤器响应于在心脏的第一和第二区域处的R波的不一致的感测，与感测到的R波同步地向心脏的心房提供除颤电脉冲。 在不一致地感测到预定数量的连续R波之后提供除颤脉冲，以确保可靠的同步。 心房除颤器还可以在标记模式中操作，其中多个同步标记脉冲被传送到心脏以便在外部产生的心电图上进行检测。 除颤器的心房颤动检测器通常被禁用，并且当感测到的心室活动指示心房颤动的概率以节省可消耗的电源时被激活。 还描述了一种心内膜导联，其确保输送的心房除颤电能基本上限于心脏的心房。
-
公开(公告)号：US5135004A
公开(公告)日：1992-08-04
申请号：US667819
申请日：1991-03-12
IPC分类号： A61B5/04 , A61B5/00 , A61B5/042 , A61B5/0452
CPC分类号： A61B5/6852 , A61B5/0031 , A61B5/0422
摘要： An implantable device assists in the diagnosis of myocardial ischemia of a human heart and includes a plurality of electrodes and a like plurality of sense amplifiers for generating an electrogram for each of the electrodes. A digital to analog converter reads the voltage magnitudes of the electrogram ST segments which are then stored in a memory. An implantable receiver/transmitter is arranged to transmit the magnitudes of the electrogram ST segments to a nonimplanted external receiver.
摘要翻译： 可植入装置有助于人心脏的心肌缺血的诊断，并且包括多个电极和类似的多个读出放大器，用于产生每个电极的电描记图。 数模转换器读取电描记图ST段的电压大小，然后存储在存储器中。 可植入接收器/发射器被布置成将电描记图ST段的大小传送到非植入式外部接收器。
-
公开(公告)号：US5785059A
公开(公告)日：1998-07-28
申请号：US846413
申请日：1997-04-03
CPC分类号： A61B18/16 , A61B18/1206 , A61B2017/00243 , A61B2018/00357 , A61B2018/00625 , A61B2018/00642 , A61B2018/00708 , A61B2018/00839 , A61N2001/0578
摘要： A method is provided for removing an implanted cardiac lead having a lead body and at least one conductive electrode from a mammalian body. The method includes the steps of providing an indifferent electrode, establishing electrical contact between the indifferent electrode and the body, and providing a generator of electrical energy. The method further includes the steps of coupling the generator between the conductive electrode and the indifferent electrodes and causing the generator to apply electrical energy between the conductive electrode and the indifferent electrode. The energy has a magnitude sufficient to produce gas by electrolysis between the conductive electrode and fibrotic tissue grown around the electrode. Thereafter, the lead body is pulled in an anterior direction relative to the mammalian body to remove the cardiac lead from the mammalian body.
摘要翻译： 提供了一种用于从哺乳动物身体去除具有引线主体和至少一个导电电极的植入心脏引线的方法。 该方法包括提供无关电极，建立无关电极和身体之间的电接触以及提供电能发生器的步骤。 该方法还包括以下步骤：将发生器耦合在导电电极和无电极之间，并使发生器在导电电极和无电极之间施加电能。 能量具有足以通过电极在导电电极和围绕电极生长的纤维组织之间产生气体的量。 此后，铅体相对于哺乳动物身体沿前方拉动，以从哺乳动物身体移除心脏铅。
-
10.发明授权Implantable atrial defibrillator and system having multiple channel electrogram telemetry and method 失效可植入心房除颤器和具有多通道电描记图遥测和方法的系统
公开(公告)号：US5578063A
公开(公告)日：1996-11-26
申请号：US545397
申请日：1995-10-19
申请人： Joseph M. Bocek , Craig S. Siegman
发明人： Joseph M. Bocek , Craig S. Siegman
CPC分类号： A61N1/37247 , A61N1/3925 , A61N1/37252 , A61N1/395
摘要： A defibrillator system includes an implantable defibrillator and a non-implantable external receiver. The implantable defibrillator includes a first sense channel for generating a first electrogram and a second sense channel for generating a second electrogram. The defibrillator further includes a cardioverter for applying cardioverting electrical energy to the heart and a transmitter for transmitting the first and second electrograms. The non-implantable receiver includes a display for simultaneously displaying the first and second electrograms. The implantable defibrillator may further include an event detector having a threshold for detecting cardiac events in one of the electrograms and an event marker generator for generating an event marker for each detected cardiac event. The transmitter transmits the event detection markers and the display displays the event detection markers and the thresholds with the corresponding electrogram.
摘要翻译： 除颤器系统包括可植入除颤器和不可植入的外部接收器。 可植入除颤器包括用于产生第一电描记图的第一感测通道和用于产生第二电描记图的第二感测通道。 除颤器还包括用于向心脏施加心脏转复电能的心律转复器，以及用于发送第一和第二电描记图的发射器。 非植入式接收器包括用于同时显示第一和第二电描记图的显示器。 可植入除颤器还可以包括事件检测器，该事件检测器具有用于检测其中一个电描记图中的心脏事件的阈值和用于为每个检测到的心脏事件产生事件标记的事件标记发生器。 发射机发送事件检测标记，显示屏显示事件检测标记和阈值与相应的电描记图。
-
-
-
-
-
-
-
-
-
搜索结果
61 条记录 (耗时 0.02 秒)
