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    • 5. 发明授权
    • Epicardial lead for minimally invasive implantation
    • 用于微创植入的心外膜导联
    • US5871532A
    • 1999-02-16
    • US861643
    • 1997-05-22
    • Edward A. Schroeppel
    • Edward A. Schroeppel
    • A61N1/05A61N1/00
    • A61N1/0587A61N1/0573A61N2001/0578A61N2001/058
    • A lead assembly for fixation to a human heart via thoracoscopy is provided. The lead assembly includes a lead that has a connector for connection to a cardiac stimulator, such as a pacemaker, a cardioverter/defibrillator, or a sensing instrument. A fixation mechanism is coupled to the lead that includes a tubular housing and a proximally projecting hook that is adapted to engage heart tissue. The hook is pivotable between a retracted position and an extended position. The lead and the hook are manipulated by a stylet. The lead assembly also includes a tubular introducer that is passed through the chest wall of a patient and used to place the lead proximate the epicardium.
    • 提供了通过胸腔镜检查将人体心脏固定的引导组件。 引线组件包括具有用于连接到心脏刺激器的连接器的引线,例如起搏器,心律转复器/除颤器或感测器械。 固定机构联接到引线,引线包括管状壳体和适于接合心脏组织的近端突出的钩。 钩可在缩回位置和伸出位置之间枢转。 导针和钩子由探针管操纵。 引导组件还包括穿过患者胸壁的管状引导器,并用于将引线放置在靠近心外膜的位置。
    • 6. 发明授权
    • Implantable cardiac stimulation catheter
    • 可植入心脏刺激导管
    • US5755764A
    • 1998-05-26
    • US710049
    • 1996-09-10
    • Edward A. Schroeppel
    • Edward A. Schroeppel
    • A61N1/05
    • A61N1/0573A61N1/056
    • An implantable cardiac stimulation catheter includes a helical electrode segment disposed about a central core of electrically non-conductive material for delivering an electrical pulse to the heart of the patient. The catheter may include a tubular electrode segment disposed on the catheter and electrically connected with the helical electrode. The helical and tubular electrode segments may be defibrillation electrode segments. The catheter may also include a demand pacer electrode for delivering a demand pacing pulse to the heart and/or a fixation mechanism for securing the catheter within the patient's heart.
    • 可植入心脏刺激导管包括围绕电导体材料的中心芯设置的螺旋电极段,用于将电脉冲传送到患者的心脏。 导管可包括设置在导管上并与螺旋电极电连接的管状电极段。 螺旋和管状电极段可以是除颤电极段。 导管还可以包括用于将需求起搏脉冲递送到心脏的需求起搏器电极和/或用于将导管固定在患者心脏内的固定机构。
    • 7. 发明授权
    • Cardiac pacemaker and method for detecting cardiac signals
    • CARDIAC PACEMAKER和检测心脏信号的方法
    • US5228437A
    • 1993-07-20
    • US696160
    • 1991-05-06
    • Edward A. Schroeppel
    • Edward A. Schroeppel
    • A61N1/362A61N1/365A61N1/37
    • A61N1/365
    • An apparatus for detecting an electrical potential in a human body to control the delivery of a therapy. The electrical potential comprises a principal signal and a baseline signal. The apparatus samples the potential through an electrode during a selected interval and stores the value of that potential at the end of the interval. The stored value of the potential will be restored as an initial condition on the electrode at the end of a second interval after delivery of the therapy. In a heart pacemaker, the baseline signal is useful for controlling the output pulses of the pacemaker. The apparatus permits sensing of the baseline signal despite stimulating pulses and charge canceling.
    • 一种用于检测人体中的电位以控制治疗的递送的装置。 电位包括主信号和基线信号。 该设备在选定的间隔期间通过电极对电位进行采样,并将该电位的值存储在间隔结束处。 存储的电位值将在输送治疗后的第二间隔结束时恢复为电极上的初始状态。 在心脏起搏器中,基线信号可用于控制起搏器的输出脉冲。 该装置允许感测基线信号,尽管刺激脉冲和电荷消除。
    • 8. 发明授权
    • Automatic sensitivity control for cardiac pacer
    • 心脏起搏器的自动灵敏度控制
    • US4766902A
    • 1988-08-30
    • US870398
    • 1986-06-04
    • Edward A. Schroeppel
    • Edward A. Schroeppel
    • A61N1/37A61N1/36
    • A61N1/3704
    • A cardiac pacer is provided which includes a pulse generator for providing pacing pulses and an electrical lead for connection to a chamber of the heart. A pair of separate sensing amplifiers sense selected activity of the heart chamber. One of the sensing amplifiers has a slightly lower threshold and thus a slightly higher sensitivity level than the other sensing amplifier. The thresholds of the respective sensing amplifiers are automatically adjusted so that the first sensing amplifier will sense the selected activity of the heart chamber and the other sensing amplifier will not sense the selected activity.
    • 提供了一种心搏器,其包括用于提供起搏脉冲的脉冲发生器和用于连接到心脏室的电引线。 一对单独的感测放大器感测心室的选定活动。 感测放大器中的一个具有稍低的阈值,因此比另一个感测放大器稍高的灵敏度水平。 自动调整各个感测放大器的阈值,使得第一感测放大器将感测心室的所选择的活动,而另一感测放大器将不会感测所选择的活动。