Oximetry with remote display
First Claim
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1. A device comprising:
- a first sensor coupler configured to receive a first input signal from a first sensor, the first input signal corresponding to a non-pulsatile direct current (DC) component of a first physiological parameter and based on optical excitation of a tissue;
a second sensor coupler configured to receive a second input signal from a second sensor, the second input signal corresponding to a second physiological parameter;
a processor coupled to the first sensor coupler and coupled to the second sensor coupler, the processor configured to generate an output signal based on the first input signal and based on the second input signal, the first physiological parameter encoded in the output signal and the output signal differing from the first input signal, the processor configured to monitor for a timing signal and wherein the processor is configured to synchronize the first sensor coupler to receive the first input signal at a first time and the second sensor coupler to receive the second input signal at a second time based on the timing signal to reduce interference between the first input signal and the second input signal, wherein the second time is different than the first time; and
an output coupler configured to communicate the output signal to a remote device.
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Abstract
A device includes a first sensor coupler that is configured to receive a first input signal from a first sensor. The first input signal corresponds to a first physiological parameter and is based on optical excitation of a tissue. The device includes a processor coupled to the first sensor coupler. The processor is configured to generate an output signal based on the first input signal. The first physiological parameter is encoded in the output signal. The output signal differs from the first input signal. The device includes an output coupler configured to communicate the output signal to a remote device.
14 Citations
23 Claims
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1. A device comprising:
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a first sensor coupler configured to receive a first input signal from a first sensor, the first input signal corresponding to a non-pulsatile direct current (DC) component of a first physiological parameter and based on optical excitation of a tissue; a second sensor coupler configured to receive a second input signal from a second sensor, the second input signal corresponding to a second physiological parameter; a processor coupled to the first sensor coupler and coupled to the second sensor coupler, the processor configured to generate an output signal based on the first input signal and based on the second input signal, the first physiological parameter encoded in the output signal and the output signal differing from the first input signal, the processor configured to monitor for a timing signal and wherein the processor is configured to synchronize the first sensor coupler to receive the first input signal at a first time and the second sensor coupler to receive the second input signal at a second time based on the timing signal to reduce interference between the first input signal and the second input signal, wherein the second time is different than the first time; and an output coupler configured to communicate the output signal to a remote device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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exchanging a first timing signal with a first sensor, the first sensor configured to provide a first detected signal corresponding to an optical property of a tissue at a first time correlated with the first timing signal; controlling operation of a second sensor based on the first timing signal, wherein controlling operation of the second sensor includes synchronizing the second sensor to provide a second detected signal at a second time, the second time correlated with the first timing signal to reduce interference between the first detected signal and the second detected signal; receiving the first detected signal; processing the first detected signal to generate an output signal, the output signal corresponding to a parameter of the tissue, the parameter based on a non-pulsatile direct current (DC) component of the first detected signal, and the output signal different than the first detected signal; and communicating the output signal to a remote device. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a first sensor having a detector and configured to provide a first sensor signal corresponding to a first optical property of tissue; a second sensor configured to provide a second sensor signal corresponding to a second property of the tissue; a processor coupled to receive the first sensor signal and to receive the second sensor signal and configured to generate an output signal using the first sensor signal and the second sensor signal, the output signal corresponding to a non-pulsatile direct current (DC) component of a parameter of the tissue, the output signal different than the first sensor signal and the processor configured to monitor for a timing signal and wherein the processor is configured to synchronize a function based on the timing signal, wherein the function includes synchronizing the first sensor and the second sensor to provide the first sensor signal at a first time and provide the second sensor signal at a second time based on the timing signal to reduce interference between the first sensor signal and the second sensor, wherein the second time is different than the first time; and a display monitor coupled to receive the output signal and configured to render a user perceivable representation of the parameter. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification