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1. 发明申请

WO1997038754A1 EXTERNAL DEFIBRILLATOR HAVING LOW CAPACITANCE AND SMALL TIME CONSTANT 审中-公开
标题翻译：具有低电容和小时间的外部解调器
公开(公告)号：WO1997038754A1
公开(公告)日：1997-10-23
申请号：PCT/US1997006003
申请日：1997-04-11
申请人： SURVIVALINK CORPORATION
发明人： SURVIVALINK CORPORATION , BREWER, James, E. , SWERDLOW, Charles, D.
IPC分类号： A61N01/39
CPC分类号： A61N1/39 , A61N1/3906 , A61N1/3912
摘要： A method and apparatus for delivering a truncated damped sinusoidal external defibrillation waveform, which when applied through aplurality of electrodes positioned on a patient's torso will produce a desired response in the patient's cardiac cell membranes, is provided. The external defibrillator is utilized for applying a damped sinusoidal waveform having a first waveform phase, and a second waveform phase to a pair of electrodes. The external defibrillator has a first capacitive component (C1), a first inductive component (L1), a first truncating switch, and waveform control circuitry. The waveform control circuitry of the defibrillator controls the first and second truncating switches, such that the duration of the second phase waveform delivered by the second charge storage component, is greater than the duration of the first phase waveform delivered by the first charge storage component.
摘要翻译：提供截断的阻尼正弦外部除颤波形的方法和装置，其在通过位于患者躯干上的多个电极施加时将产生在患者的心脏细胞膜中的期望的响应。外部除颤器用于向一对电极施加具有第一波形相位的阻尼正弦波形和第二波形相位。外部除颤器具有第一电容分量（C1），第一电感分量（L1），第一截断开关和波形控制电路。除颤器的波形控制电路控制第一和第二截断开关，使得由第二电荷存储部件传送的第二相位波形的持续时间大于由第一电荷存储部件传送的第一相位波形的持续时间。

2. 发明申请

WO1997049457A1 BIPHASIC DEFIBRILLATION CIRCUITRY 审中-公开
标题翻译：双向断线电路
公开(公告)号：WO1997049457A1
公开(公告)日：1997-12-31
申请号：PCT/US1997011421
申请日：1997-06-26
申请人： SURVIVALINK CORPORATION
发明人： SURVIVALINK CORPORATION , STENDAHL, Gary, B. , BREWER, James, E.
IPC分类号： A61N01/39
CPC分类号： A61N1/3925 , A61N1/3912 , A61N1/3931 , A61N1/3981
摘要： This invention is an apparatus for providing and delivery biphasic waveform defibrillation pulse. One embodiment includes a source (12) for generating a train of high frequency pulses coupled through a pulse transformer (14), a high speed diode (18) connected to the pulse transformer, a filter capacitor (20) connected to the high speed diode, acting as a low pass filter for the train of pulses, and a plurality of solid state switches (24, 26) for selectively coupling and decoupling the voltage across the filter capacitor to one of a plurality of capacitor banks (40, 42) which make-up the biphasic high voltage defibrillation pulse supply. Another embodiment is an apparatus for selecting from a pair of capacitor banks for delivery of positive and negative polarity portions of a biphasic defibrillator pulse. A further embodiment is a solid state patient isolator circuit capable of conducting bipolar portions of a biphasic defibrillation pulse when the isolator circuit is ON, and further capable of isolating circuitry upstream or downstream of the patient isolator when the isolator circuit is OFF.
摘要翻译：本发明是用于提供和输送双相波形除颤脉冲的装置。一个实施例包括用于产生通过脉冲变压器（14）耦合的高频脉冲串的源极（12），连接到脉冲变压器的高速二极管（18），连接到高速二极管，用作脉冲序列的低通滤波器，以及多个固态开关（24,26），用于选择性地将滤波电容器两端的电压耦合和去耦合到多个电容器组（40,42）中的一个，其中补充双相高压除颤脉冲电源。另一个实施例是用于从一对电容器组中选择用于传输双相除颤器脉冲的正极性和负极性部分的装置。另一个实施例是一种固态病人隔离器电路，当隔离器电路接通时能够传导双相除颤脉冲的双极部分，并且当隔离电路断开时，还能够隔离病人隔离器的上游或下游的电路。

3. 发明申请

WO1997038753A1 EXTERNAL DEFIBRILLATION WAVEFORMS 审中-公开
标题翻译：外部畸变波形
公开(公告)号：WO1997038753A1
公开(公告)日：1997-10-23
申请号：PCT/US1997005952
申请日：1997-04-11
申请人： SURVIVALINK CORPORATION
发明人： SURVIVALINK CORPORATION , BREWER, James, E. , STENDAHL, Gary, B.
IPC分类号： A61N01/39
CPC分类号： A61N1/39 , A61N1/3906 , A61N1/3912 , A61N1/3925
摘要： An apparatus for generating a waveform for use in externally defibrillating the heart of a patient includes a plurality of capacitors (C1, C2) chargeable to respective charge potentials. A control apparatus is operatively coupled with the capacitors to sequentially interconnect the capacitors (C1, C2) in a circuit with one another to generate the waveform. Structure including, e.g., electrodes is operatively coupled with the capacitors and the control apparatus to apply the waveform to the chest of the patient. The waveform preferably includes an emulated first phase substantially sinusoidally shaped pulse component having a first polarity. According to biphasic embodiments, the waveform also includes an emulated second phase substantially sinusoidally shaped pulse component having a second polarity. The control apparatus preferably is constructed to truncate the emulated first phase pulse component at a predetermined time, preferably based on a design rule used to calculate pulse duration. The design rule calculates the pulse duration to correspond to substantially the peak response of the patient's heart cell membrane to the first phase pulse component. Corresponding method embodiments provide additional advantages.
摘要翻译：用于产生用于外部去纤颤患者心脏的波形的装置包括可对各个电荷电位充电的多个电容器（C1，C2）。控制装置与电容器可操作地耦合，以将电路中的电容器（C1，C2）彼此顺序地互连，以产生波形。包括例如电极的结构与电容器和控制装置可操作地耦合以将波形施加到患者的胸部。波形优选地包括具有第一极性的仿真的第一相基本正弦形脉冲分量。根据两相实施例，波形还包括具有第二极性的仿真的第二相基本正弦形状的脉冲分量。优选地，控制装置被构造成在预定时间，优选地基于用于计算脉冲持续时间的设计规则截断仿真的第一相位脉冲分量。设计规则计算脉搏持续时间，以对应于患者心脏细胞膜基本上与第一相脉冲分量的峰值响应。相应的方法实施例提供了额外的优点。

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