ABSTRACT OF THE DISCLOSURE
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`A non-invasive, optical-based physiological monitoring system is disclosed.
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`One embodiment
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`includes an emitter configured to emit
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`light. A diffuser
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`is
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`configured to receive and spread the emitted light, and to emit the spread light at a
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`tissue measurement site. The system further includes a concentrator configured to
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`receive the spread light after it has been attenuated by or reflected from the tissue
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`measurement site. The concentrator is also configured to collect and concentrate
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`the received light and to emit the concentrated light to a detector. The detector is
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`configured to detect the concentrated light and to transmit a signal representative of
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`the detected light. A processor is configured to receive the transmitted signal and to
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`determine a physiological parameter,
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`such as,
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`for example, arterial oxygen
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`saturation, in the tissue measurement site.
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`-27-
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