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    • 2. 发明授权
    • Controlled-power defibrillator and method of defibrillation
    • 控制功率除颤器和除颤方法
    • US06546287B1
    • 2003-04-08
    • US09680790
    • 2000-10-06
    • William J. HavelJoe D. BourlandLeslie A. GeddesWillis A. TackerDarrell O. Wagner
    • William J. HavelJoe D. BourlandLeslie A. GeddesWillis A. TackerDarrell O. Wagner
    • A61N136
    • A61N1/3937A61N1/3912
    • A controlled-power defibrillator and method of defibrillation for automatically compensating for changes in patient resistance during delivery of a defibrillation pulse. A switching power converter is connected between a storage capacitor and a pair of electrodes adapted for connection to a patient's body, either internally or externally. A closed-loop power control circuit is operatively connected to the power converter for control of the power delivered to the patient, the power control circuit generating a target voltage signal for the storage capacitor, the target voltage signal having a defined relationship with the waveform of the power desired to be delivered to the patient. The power control circuit monitors the actual voltage on the storage capacitor and adjusts the delivery of power to the patient as a function of the difference between desired and actual storage capacitor voltage. The power converter is adapted to capture energy from the discharge of an existing defibrillator and to convert captured energy from the existing defibrillator to a waveform different from that generated by the existing defibrillator.
    • 一种控制功率除颤器和除颤方法,用于在除颤脉冲输送期间自动补偿患者阻力的变化。 开关功率转换器连接在存储电容器和适于连接到患者身体的一对电极之间,内部或外部。 闭环功率控制电路可操作地连接到功率转换器,用于控制传递给患者的功率,功率控制电路产生用于存储电容器的目标电压信号,目标电压信号与 期望输送给患者的功率。 功率控制电路监视存储电容器上的实际电压,并根据期望的和实际的存储电容器电压之间的差异来调整向患者的电力输送。 功率转换器适于从现有除颤器的放电中捕获能量,并且将来自现有除颤器的捕获能量转换为与现有除颤器产生的波形不同的波形。
    • 5. 发明授权
    • Multiple monopolar system and method of measuring stroke volume of the
heart
    • 多重单极系统和测量心脏搏动量的方法
    • US5058583A
    • 1991-10-22
    • US553434
    • 1990-07-13
    • Leslie A. GeddesNeal E. FearnotJerry L. Wessale
    • Leslie A. GeddesNeal E. FearnotJerry L. Wessale
    • A61N1/365
    • A61N1/3686A61N1/36514
    • A multiple monopolar system and method for measuring stroke volume of a patient's heart. An intracardiac impedance catheter is provided with a plurality of monopolar electrodes axially spaced along the surface of its distal end, and is used in conjunction with a distant reference electrode which may, for example, be incorporated into the conductive case of a pacemaker. The proximal end of the catheter is attached to the pacemaker, which, in addition to pulse generator circuitry and circuitry for sensing electrical activity of the heart and for controlling pacing rate, includes a constant-current source for current injection into the volume of blood in the patient's ventricle and an impedance processor for measuring the resultant voltage between one of the monopolar electrodes in the ventricle and the pacemaker case and for calculating stroke volume therefrom. A system and method are also disclosed for generating a three-phase relationship between cardiac output and heart rate for an individual patient at a particular workload, for purposes of determining optimal heart rate, as is a method of using the monopolar electrode configuration to detect ventricular fibrillation.
    • 用于测量患者心脏的搏动体积的多重单极系统和方法。 心内阻塞导管设置有沿着其远端的表面轴向间隔开的多个单极电极,并且与远程参考电极结合使用,其可以例如并入到起搏器的导电壳体中。 导管的近端附接到起搏器,除了用于感测心脏的电活动和用于控制起搏速率的脉冲发生器电路和电路之外,还包括用于当前注入血液体积的恒流源 患者的心室和阻抗处理器,用于测量心室中的一个单极电极和起搏器壳体之间的所得电压,并用于计算其中的冲程容量。 还公开了一种系统和方法,用于在特定工作负载下为个体患者产生心输出量和心率之间的三相关系,以便确定最佳心率,正如使用单极电极配置来检测心室的方法一样 颤动。
    • 8. 发明授权
    • Oscillometric noninvasive blood pressure monitor
    • 示波非侵入性血压计
    • US07014611B1
    • 2006-03-21
    • US10876308
    • 2004-06-24
    • Leslie A. GeddesRebecca A. Roeder
    • Leslie A. GeddesRebecca A. Roeder
    • A61B5/02
    • A61B5/02225A61B5/0225A61B5/1455
    • An oscillometric, noninvasive blood pressure monitor comprising an inflatable cuff adapted for placement around a body member, a pump for cuff inflation, a pressure transducer connected to the cuff, means for detecting oscillations in arterial pressure occurring during a transition in cuff pressure between a pressure greater than normal systolic pressure and a pressure less than normal diastolic pressure, and a blood pressure measurement circuit which is capable of determining the maximum amplitude (Am) of the oscillations, identifying mean cuff pressure (Pm) as the coincident value of the cuff-pressure signal from the pressure transducer, and determining systolic pressure as a function of both Am and Pm. In accordance with one aspect of the invention, the blood pressure monitor has an optical sensor including a light source and photodetector optically coupled to the body member proximate to the cuff. Oscillations in the output signal of the photodetector are detected, and the blood pressure measurement circuit determines the oscillation amplitude corresponding to systolic pressure (As) as a function of both Am and Pm.
    • 一种示波器,无创血压监测器,包括适于放置在身体构件周围的可充气袖带,用于袖带充气的泵,连接到袖带的压力传感器的装置,用于检测在袖带压力的转变期间发生的动脉压的振荡, 大于正常的收缩压和小于正常舒张压的压力,以及血压测量电路,其能够确定振荡的最大振幅(A> M),识别平均袖带压(P < 作为来自压力传感器的袖带压信号的一致值,并且确定收缩压作为A&lt; m&gt;和&lt; >。 根据本发明的一个方面,血压监测器具有光学传感器,该光学传感器包括光学源和光学检测器,其光学耦合到靠近袖带的身体构件。 检测光检测器的输出信号中的振荡,并且血压测量电路确定与收缩压相对应的振荡振幅(A SUB)作为两个A / 和P&lt; m&gt;。