Electro-Optical System, Apparatus, and Method For Ambulatory Monitoring
First Claim
Patent Images
1. An electro-optical monitoring system including a first portion, the first portion comprising:
- a light transceiver adapted to transmit light into biological tissue of a person at a light transmission rate of at least 0.1 light transmissions per second, coupled to receive light from the biological tissue, and adapted to provide a transceiver output signal indicative of a characteristic of the received light, wherein the light transceiver comprises;
a modulator configured to modulate the transmitted light; and
a demodulator to demodulate the received light to provide the transceiver output signal;
a signal processor coupled to said light transceiver and adapted to process the transceiver output signal to provide a processed signal, wherein the processed signal includes signal samples having a sample rate of at least 0.1 samples per second; and
a storage device coupled to said signal processor and adapted to store at least four hours of the processed signal as a stored-processed signal, wherein the stored-processed signal has a stored signal duration sufficient to detect an intermittent medical condition of the person having an occurrence period of at least four hours.
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Abstract
An electro-optical system, apparatus, and method allow long-term, ambulatory measurements to be made on a patient using light transmitted into the patient and resulting light received from the patient.
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Citations
97 Claims
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1. An electro-optical monitoring system including a first portion, the first portion comprising:
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a light transceiver adapted to transmit light into biological tissue of a person at a light transmission rate of at least 0.1 light transmissions per second, coupled to receive light from the biological tissue, and adapted to provide a transceiver output signal indicative of a characteristic of the received light, wherein the light transceiver comprises; a modulator configured to modulate the transmitted light; and a demodulator to demodulate the received light to provide the transceiver output signal; a signal processor coupled to said light transceiver and adapted to process the transceiver output signal to provide a processed signal, wherein the processed signal includes signal samples having a sample rate of at least 0.1 samples per second; and a storage device coupled to said signal processor and adapted to store at least four hours of the processed signal as a stored-processed signal, wherein the stored-processed signal has a stored signal duration sufficient to detect an intermittent medical condition of the person having an occurrence period of at least four hours. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 92, 96)
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13-46. -46. (canceled)
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47. An electro-optical monitoring system, comprising a first portion, including:
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a light transceiver adapted to transmit light into biological tissue of a person, adapted to receive light from the biological tissue resulting from the transmitted light, and adapted to provide a transceiver output signal indicative of a characteristic of the received light; a reference sensor adapted to sense a characteristic of at least one of the person or the transceiver and to provide a reference signal indicative of the characteristic; a signal processor coupled to said light transceiver and adapted to process the transceiver output signal and the reference signal to provide a processed signal; and a storage device coupled to said signal processor and adapted to store the processed signal as a stored-processed signal. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 93, 94)
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58-80. -80. (canceled)
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81. A method of monitoring a person under ambulatory conditions, comprising:
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transmitting modulated light into the person at a light transmission rate of at least 0.1 transmissions per second; receiving light from the person in response to the transmitting; demodulating the received light to generate a transceiver output signal indicative of a characteristic of the received light in response to the receiving; processing the transceiver output signal to provide a processed signal wherein the processed signal includes signal samples having a sample rate of at least 0.1 samples per second; and storing at least four hours of the processed signal as a stored-processed signal, wherein the stored-processed signal has a stored signal duration sufficient to detect an intermittent medical condition of the person having an occurrence period of at least four hours. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 95, 97)
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Specification