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1.发明授权Atrial defibrillator and method for providing adaptive control of defibrillator output voltage 失效心房除颤器和提供自适应控制除颤器输出电压的方法
公开(公告)号：US5674250A
公开(公告)日：1997-10-07
申请号：US641100
申请日：1996-04-29
IPC分类号： A61N1/39
CPC分类号： A61N1/3943 , A61N1/395
摘要： An implantable atrial defibrillator provides adaptive output voltage control. An atrial cardiovertor is responsive to an atrial fibrillation detector for applying a cardioverting voltage having a magnitude to the atria of a heart when the atria are in need of cardioversion. A memory stores data associated with each such voltage application. A computation stage computes from the stored data a percentage of success which is compared to lower and upper limits. The output voltage is incremented or decrement based upon the comparison. The output voltage may further be maintained within a fixed preselected voltage range.
摘要翻译： 可植入心房除颤器提供自适应输出电压控制。 心房心律转换器响应于心房颤动检测器，当心房需要心脏复律时，将心律转复电压施加到心脏心房的大小。 存储器存储与每个这样的电压应用相关联的数据。 计算阶段根据存储数据计算与下限和上限进行比较的成功百分比。 基于比较，输出电压递增或递减。 输出电压可以进一步保持在固定的预选电压范围内。
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2.发明授权Crosspoint switch with improved discharge control for use in an implantable defibrillator 失效交叉点开关具有改进的放电控制，用于可植入除颤器
公开(公告)号：US5312444A
公开(公告)日：1994-05-17
申请号：US91213
申请日：1993-07-13
IPC分类号： A61N1/39
CPC分类号： A61N1/3956 , A61N1/3906 , A61N1/3912 , A61N1/395
摘要： A pulse generator for use in a defibrillator provides cardioverting electrical energy to a heart through at least one lead having a pair of electrodes associated with the heart. Electrical energy is applied to the heart with a biphasic waveform having a first cardioverting phase and a second cardioverting phase. A crosspoint switch selectively couples a storage capacitor to the lead means. A master switch decouples the crosspoint switch from the storage capacitor while the crosspoint switch connections are changed between the first cardioverting phase and the second cardioverting phase. A control circuit provides independent control of the duration of both the first and second cardioverting phases.
摘要翻译： 用于去纤颤器的脉冲发生器通过具有与心脏相关联的一对电极的至少一个引线向心脏提供心律转复的电能。 电能通过具有第一心律转复期和第二心律转复期的双相波形施加于心脏。 交叉点开关将存储电容器选择性地耦合到引线装置。 主交换机将交叉点开关与存储电容器分离，同时交叉点开关连接在第一复律转换阶段和第二次重心转换阶段之间改变。 控制电路提供对第一和第二心律转复期的持续时间的独立控制。
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3.发明授权Method and apparatus for applying asymmetric biphasic truncated exponential countershocks 失效用于应用不对称双相截顶指数反冲的方法和装置
公开(公告)号：US5083562A
公开(公告)日：1992-01-28
申请号：US574510
申请日：1990-08-28
IPC分类号： A61N1/39
CPC分类号： A61N1/3956 , A61N1/3906 , A61N1/3912
摘要： A method and apparatus for applying an asymmetric biphasic exponential waveform countershock to the heart useful in an implantable cardioverter or defibrillator, wherein the second phase has a start amplitude of substantially one half that of the first phase, and wherein the polarity of a capacitor discharging through a current path including the heart is reversed. A voltage reversing circuit may include a voltage shifter which shifts voltage associated with switching elements in the circuit to reduce voltage stresses in the switching elements.
摘要翻译： 一种将不对称双相指数波形反冲应用于可用于可植入式心律转复器或去纤颤器的心脏的方法和装置，其中所述第二相位的起始幅度基本上为所述第一相位的一半，并且其中电容器的极性通过 包括心脏的当前路径相反。 电压反转电路可以包括电压移位器，其移位与电路中的开关元件相关联的电压以减小开关元件中的电压应力。
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公开(公告)号：US5674249A
公开(公告)日：1997-10-07
申请号：US641976
申请日：1996-05-02
CPC分类号： A61N1/37247 , A61N1/3925 , A61N1/37258 , A61N1/395 , Y10S128/903
摘要： An atrial defibrillation system includes an implantable atrial defibrillator including an atrial fibrillation detector and an atrial cardiovertor, and an external communication device dimensioned to be hand-held and including an RF transmitter for transmitting a command signal to the implanted defibrillator. The implantable defibrillator includes a receiver for receiving the command signal, activation means responsive to receipt of the command signal for activating the atrial fibrillation detector and the atrial cardiovertor if the atrial fibrillation detector detects atrial fibrillation, and an RF transmitter for transmitting an acknowledgment signal to the external communication device responsive to the receiver receiving the command signal. The external communication device further includes a receiver for receiving the acknowledgment signal and an indicator for providing a perceptible indication responsive to receipt of the acknowledgment signal.
摘要翻译： 心房除颤系统包括可植入心房除颤器，其包括心房颤动检测器和心房心律转换器，以及尺寸设计为手持式并且包括用于向植入式除颤器发送命令信号的RF发射器的外部通信装置。 可植入除颤器包括用于接收命令信号的接收器，响应于接收到用于激活心房颤动检测器的命令信号和心房颤动检测器检测到心房颤动时的心房转换器的激活装置，以及用于将确认信号发送到 外部通信设备响应于接收器接收命令信号。 外部通信设备还包括用于接收确认信号的接收器和响应于接收到确认信号而提供可感知指示的指示符。
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