Multiple wavelength sensor emitters
First Claim
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1. A physiological sensor comprising:
- a plurality of light emitting sources arranged as first elements of a plurality of elements in an electrical grid, the electrical grid comprising a plurality of rows and a plurality of columns;
a detector responsive to light emitted by at least one of the plurality of light emitting sources after the light is attenuated by tissue of a patient, wherein the detector is configured to generate a signal indicative of a physiological parameter of the patient; and
at least one information element arranged as a second element of the plurality of elements in the electrical grid, wherein, in response to being activated, the at least one information element provides an output indicative of information about the physiological sensor,wherein addressing one of the plurality of rows and one of the plurality of columns activates one of the plurality of elements in the electrical grid.
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Abstract
A physiological sensor has light emitting sources, each activated by addressing at least one row and at least one column of an electrical grid. The light emitting sources are capable of transmitting light of multiple wavelengths and a detector is responsive to the transmitted light after attenuation by body tissue.
1298 Citations
20 Claims
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1. A physiological sensor comprising:
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a plurality of light emitting sources arranged as first elements of a plurality of elements in an electrical grid, the electrical grid comprising a plurality of rows and a plurality of columns; a detector responsive to light emitted by at least one of the plurality of light emitting sources after the light is attenuated by tissue of a patient, wherein the detector is configured to generate a signal indicative of a physiological parameter of the patient; and at least one information element arranged as a second element of the plurality of elements in the electrical grid, wherein, in response to being activated, the at least one information element provides an output indicative of information about the physiological sensor, wherein addressing one of the plurality of rows and one of the plurality of columns activates one of the plurality of elements in the electrical grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for determining information about a physiological sensor or measuring an indication of a physiological parameter of a patient, the method comprising:
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positioning a sensor with respect to body tissue of a patient, the sensor comprising; a plurality of light emitting sources arranged as first elements of a plurality of elements in an electrical grid comprising a plurality of rows and a plurality of columns, wherein, in response to being activated, a light emitting source of the plurality of light emitting sources emits light, at least one information element arranged as a second element of the plurality of elements in the electrical grid, wherein, in response to being activated, the at least one information element provides an output indicative of information about the physiological sensor, and a detector configured to generate a signal indicative of a physiological parameter of the patient responsive to light emitted by one or more of the plurality of light emitting sources; addressing one of the plurality of rows and one of the plurality of columns to activate one of the plurality of elements in the electrical grid; and based at least in part on activation of the one of the plurality of elements, performing an action, wherein said action comprises at least one of outputting an indication of the information about the physiological sensor or outputting the signal generated by the detector. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification