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    • 20. 发明授权
    • Process and device for regulating the stimulation frequency of heart
pacemakers
    • 调节心脏起搏器刺激频率的过程和装置
    • US4399820A
    • 1983-08-23
    • US346315
    • 1982-02-05
    • Alexander WirtzfeldRoland HeinzeThomas BockHans D. Liess
    • Alexander WirtzfeldRoland HeinzeThomas BockHans D. Liess
    • A61B5/00A61B5/145A61B5/1459A61N1/365A61N1/36
    • A61N1/36557A61B5/1459
    • A process and a device for regulating the stimulation frequency of heart pacemakers are disclosed. The process comprises generating with the aid of light emitted by a light-emitting element, reflected by the blood of a patient, and received by a light-receiving element, a current flow which causes, in a measuring probe, an increasing of the current flow at a constant probe voltage or a damping of the probe voltage at constant current flow. Thereafter, one of the possible changing values is measured and the change, with time, is evaluated as a measured quantity proportional to the change, with time, of the blood oxygen saturation, and, as a function of the measured quantity, the stimulation frequency of the heart pacemaker is regulated in such a manner that the greatest possible blood oxygen saturation is always achieved with the lowest stimulation frequency. The device for practicing the invention comprises a measuring probe containing at least one combination of only two active optoelectronic elements, one light-emitting element and one light-receiving element; a control circuit electrically connected to the measuring probe; a stimulation catheter in which the measuring probe is incorporated, and at least two electric lines leading through the stimulation catheter and electrically connecting the measuring probe to the control circuit of the measuring probe.
    • 公开了一种用于调节心脏起搏器刺激频率的过程和装置。 该过程包括借助由发光元件发射的光产生,由患者的血液反射并由光接收元件接收的电流,其在测量探针中引起电流的增加 在恒定电流下以恒定的探针电压或探针电压的阻尼流动。 此后,测量可能的变化值之一,随时间的变化被评估为与血氧饱和度随时间的变化成比例的测量量,并且作为测量量的函数,刺激频率 心脏起搏器的调节方式是以最低的刺激频率始终实现最大可能的血氧饱和度。 用于实施本发明的装置包括测量探头,其包含仅两个有源光电元件,一个发光元件和一个光接收元件的至少一个组合; 电连接到所述测量探针的控制电路; 其中结合有测量探针的刺激导管和通过刺激导管的至少两条电线,并将测量探针电连接到测量探针的控制电路。