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    • 3. 发明申请
    • RESPIRATORY NERVE STIMULATION
    • 呼吸神经刺激
    • WO2004041354A8
    • 2005-04-07
    • PCT/US0333901
    • 2003-10-27
    • MEDTRONIC INC
    • CASAVANT DAVID AHAVEL WILLIAM J
    • A61N1/05A61N1/36A61N1/365
    • A61N1/3601A61N1/365A61N2001/0585
    • The invention is directed to an implantable medical device that stimulates a nerve associated with respiration. The nerve may, for example be a phrenic nerve, and the stimulation may cause a diaphragm of the patient to contract. The implantable medical device receives a signal that indicates a need for increased cardiac output and stimulates the nerve in response to the signal. The implantable medical device may receive such a signal by, for example, detecting a ventricular tachyarrhythmia, sensing a pressure that indicates a need for increased cardiac output, or receiving a signal from a patient via a patient activator. Stimulation of the nerve may increase cardiac output of a beating or defibrillating heart
    • 本发明涉及刺激与呼吸相关的神经的可植入医疗装置。 神经可能例如是膈神经,并且刺激可能导致患者的隔膜收缩。 该可植入医疗装置接收一信号,该信号指示需要增加心输出量并响应信号刺激神经。 可植入医疗装置可以通过例如检测心室快速性心律失常,感测指示增加心输出量的需要的压力或者经由患者激活器从患者接收信号来接收这种信号。 刺激神经可能会增加心脏输出的跳动或除颤心脏
    • 8. 发明申请
    • CONTROL OF ARBITRARY WAVEFORMS FOR CONSTANT DELIVERED ENERGY
    • 用于恒定供应能量的仲裁波的控制
    • WO03047685A2
    • 2003-06-12
    • PCT/US0240037
    • 2002-12-03
    • MEDTRONIC INC
    • HAVEL WILLIAM JDEGROOT PAUL JSINNER THOMAS WKUEHN KEVINKEMMETMUELLER GARYWOLD WARREN W
    • A61B5/05A61N1/04A61N1/08A61N1/39A61N
    • A61N1/3906A61N1/3912A61N1/3937
    • The present invention outlines structures and methods for delivering a controllable amount of energy to a patient by automatically compensating for the load impedance detected by an implantable-cardioverter defibrillator (ICD). The invention employs high speed, switching power converter technology for the efficient generation of high energy, arbitrary waveforms. Unlike a linear amplifier, switching power converters deliver high-energy waveforms with an efficiency that is independent of the size and amplitude of the desired waveform. An ICD that uses a switching power converter to deliver the desired energy to the patient stores the energy to be delivered in a storage capacitor. The converter then transforms this energy into an arbitrarily shaped output voltage-controlled or current-controlled waveform by switching the storage capacitor in and out of the output circuit at a high rate of speed. Preferably, the waveform comprises a ramp-type waveform.
    • 本发明概述了通过自动补偿由可植入式心律转复除颤器(ICD)检测的负载阻抗来向患者传送可控量的能量的结构和方法。 本发明采用高速,开关电源转换器技术,高效生成高能量,任意波形。 与线性放大器不同,开关电源转换器提供高能量波形,效率与所需波形的大小和幅度无关。 使用开关功率转换器将期望的能量递送到患者的ICD存储要在存储电容器中传递的能量。 然后,转换器通过以高速率切换存储电容器输入和输出输出电路,将该能量转换成任意形状的输出电压控制或电流控制波形。 优选地,波形包括斜坡型波形。