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    • 6. 发明授权
    • Process and system for simultaneously simulating arterial and
non-arterial blood oxygen values for pulse oximetry
    • 用于同时模拟脉搏血氧测定的动脉和非动脉血氧值的过程和系统
    • US6141572A
    • 2000-10-31
    • US252013
    • 1999-02-18
    • Peter Haas
    • Peter Haas
    • A61B5/00
    • A61B5/1495A61B2560/0233
    • A problem in pulse oximetry is discriminating between arterial and non-arterial oxygen. Non-arterial oxygen can become detectable by an oximeter when a patient moves, obscuring the oximeter's measurement of arterial oxygen at critical times. Recent advances in pulse oximetry have made it possible to make the discrimination between arterial and non-arterial blood oxygen values. To allow manufacturers, hospitals, and medical researchers to evaluate the new oximetry technology, and evaluate oximeters which use it, new simulation technology is presented which can simulate simultaneous arterial and non-arterial blood oxygen on demand, with precision as to oxygen value, waveform amplitude, and waveform frequency. This invention provides the required simulation by double amplitude modulating the red and infra-red oximeter pulses.
    • 脉搏血氧饱和度测定中的一个问题是区分动脉和非动脉氧。 当患者移动时,血氧饱和度测量仪可以检测到非动脉氧,阻止血氧计在关键时刻对动脉氧的测量。 脉搏血氧饱和度测量的最新进展使得有可能区分动脉和非动脉血氧值。 为了使制造商,医院和医学研究人员能够评估新的血氧饱和度测定技术,并对使用它的血氧仪进行评估,提出了新的模拟技术,可以根据需要模拟同时动脉和非动脉血氧,氧气值,波形 幅度和波形频率。 本发明通过双幅度调制红外和红外线血氧仪脉冲提供所需的模拟。