System and method for practicing spectrophotometry using light emitting nanostructure devices
First Claim
1. A physiologic sensor, comprising:
- a sensor body configured for placement adjacent tissue of a patient;
a first light emitting nanostructure device configured to emit light at a first wavelength into the tissue;
a second light emitting nanostructure device configured to emit light at a second wavelength into the tissue, wherein the first and second light emitting nanostructure devices are stacked atop one another to substantially align an axis of emission of the first light emitting nanostructure device with an axis of emission of the second light emitting nanostructure device; and
a light detector configured to detect the light at the first wavelength and the light at the second wavelength from the tissue.
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Abstract
Embodiments of the present invention relate to a system and method for practicing spectrophotometry using light emitting nanostructures. Specifically, embodiments of the present invention include a physiologic sensor comprising a sensor body configured for placement adjacent pulsatile tissue of a patient, a first light emitting nanostructure device configured to emit light at a first wavelength through the pulsatile tissue, a second light emitting nanostructure device configured to emit light at a second wavelength through the pulsatile tissue, and a light detector configured to detect the light at the first wavelength and the light at the second wavelength after dispersion through the pulsatile tissue.
1049 Citations
23 Claims
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1. A physiologic sensor, comprising:
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a sensor body configured for placement adjacent tissue of a patient; a first light emitting nanostructure device configured to emit light at a first wavelength into the tissue; a second light emitting nanostructure device configured to emit light at a second wavelength into the tissue, wherein the first and second light emitting nanostructure devices are stacked atop one another to substantially align an axis of emission of the first light emitting nanostructure device with an axis of emission of the second light emitting nanostructure device; and a light detector configured to detect the light at the first wavelength and the light at the second wavelength from the tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pulse oximeter system, comprising:
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a pulse oximeter configured to read signal data and derive patient data from the signal data; and a sensor configured to detect physiological characteristics of a patient and communicate the physiological characteristics to the pulse oximeter as the signal data, comprising; a sensor body configured for placement adjacent pulsatile tissue of the patient; a first light emitting nanostructure device configured to emit light at a first wavelength into the pulsatile tissue; a second light emitting nanostructure device configured to emit light at a second wavelength into the pulsatile tissue, wherein the first and second light emitting nanostructure devices are stacked atop one another to substantially align an axis of emission of the first light emitting nanostructure device with an axis of emission of the second light emitting nanostructure device; and a light detector configured to detect the light at the first wavelength and the light at the second wavelength from the pulsatile tissue. - View Dependent Claims (15, 16, 17, 18)
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19. A method, comprising:
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providing a sensor body configured for placement adjacent tissue of a patient; disposing a first light emitting nanostructure device in the sensor body, the first light emitting nanostructure device configured to emit light at a first wavelength into the tissue; disposing a second light emitting nanostructure device in the sensor body, the second light emitting nanostructure device configured to emit light at a second wavelength into the tissue, wherein the first and second light emitting nanostructure devices are stacked atop one another to substantially align an axis of emission of the first light emitting nanostructure device with an axis of emission of the second light emitting nanostructure device; and providing a light detector configured to detect the light at the first wavelength and the light at the second wavelength from the tissue. - View Dependent Claims (20, 21)
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22. A method of determining a blood flow characteristic in a patient, comprising:
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emitting light at a first wavelength from a first light emitting nanostructure device into tissue; emitting light at a second wavelength from a second light emitting nanostructure device into the tissue , wherein the first and second light emitting nanostructure devices are stacked atop one another to substantially align an axis of emission of the first light emitting nanostructure device with an axis of emission of the second light emitting nanostructure device; detecting the light from the tissue; and calculating a blood flow characteristic based on the detected light. - View Dependent Claims (23)
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Specification