Short-wave infrared super-continuum lasers for early detection of dental caries
DC CAFCFirst Claim
1. A wearable device for use with a smart phone or tablet, the wearable device comprising:
- a measurement device including a light source comprising a plurality of light emitting diodes (LEDs) for measuring one or more physiological parameters, the measurement device configured to generate, by modulating at least one of the LEDs having an initial light intensity, an input optical beam having one or more optical wavelengths, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers;
the measurement device comprising one or more lenses configured to receive and to deliver a portion of the input optical beam to tissue, wherein the tissue reflects at least a portion of the input optical beam delivered to the tissue;
the measurement device further comprising a reflective surface configured to receive and redirect at least a portion of light reflected from the tissue;
the measurement device further comprising a receiver configured to;
capture light while the LEDs are off and convert the captured light into a first signal andcapture light while at least one of the LEDs is on and convert the captured light into a second signal, the captured light including at least a portion of the input optical beam reflected from the tissue;
the measurement device configured to improve a signal-to-noise ratio of the input optical beam reflected from the tissue by differencing the first signal and the second signal;
the light source configured to further improve the signal-to-noise ratio of the input optical beam reflected from the tissue by increasing the light intensity relative to the initial light intensity from at least one of the LEDs;
the measurement device further configured to generate an output signal representing at least in part a non-invasive measurement on blood contained within the tissue; and
the wearable device configured to communicate with the smart phone or tablet, the smart phone or tablet comprising a wireless receiver, a wireless transmitter, a display, a voice input module, a speaker, and a touch screen, the smart phone or tablet configured to receive and to process at least a portion of the output signal, wherein the smart phone or tablet is configured to store and display the processed output signal, wherein at least a portion of the processed output signal is configured to be transmitted over a wireless transmission link.
0 Assignments
Litigations
2 Petitions
Accused Products
Abstract
A wearable device for use with a smart phone or tablet includes a measurement device having a plurality of LEDs generating a near-infrared input optical beam that measures physiological parameters. The measurement device includes lenses configured to receive and to deliver the input beam to skin which reflects the beam. The measurement device includes a reflective surface configured to receive and redirect the light from the skin, and a receiver configured to receive the reflected beam. The light source is configured to increase a signal-to-noise ratio of the input beam reflected from the skin by increasing the light intensity from the LEDs and modulation of the LEDs. The measurement device is configured to generate an output signal representing a non-invasive measurement on blood contained within the skin. The wearable device is configured to wirelessly communicate with the smart phone or tablet which receives and processes the output signal.
-
Citations
10 Claims
-
1. A wearable device for use with a smart phone or tablet, the wearable device comprising:
-
a measurement device including a light source comprising a plurality of light emitting diodes (LEDs) for measuring one or more physiological parameters, the measurement device configured to generate, by modulating at least one of the LEDs having an initial light intensity, an input optical beam having one or more optical wavelengths, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers; the measurement device comprising one or more lenses configured to receive and to deliver a portion of the input optical beam to tissue, wherein the tissue reflects at least a portion of the input optical beam delivered to the tissue; the measurement device further comprising a reflective surface configured to receive and redirect at least a portion of light reflected from the tissue; the measurement device further comprising a receiver configured to; capture light while the LEDs are off and convert the captured light into a first signal and capture light while at least one of the LEDs is on and convert the captured light into a second signal, the captured light including at least a portion of the input optical beam reflected from the tissue; the measurement device configured to improve a signal-to-noise ratio of the input optical beam reflected from the tissue by differencing the first signal and the second signal; the light source configured to further improve the signal-to-noise ratio of the input optical beam reflected from the tissue by increasing the light intensity relative to the initial light intensity from at least one of the LEDs; the measurement device further configured to generate an output signal representing at least in part a non-invasive measurement on blood contained within the tissue; and the wearable device configured to communicate with the smart phone or tablet, the smart phone or tablet comprising a wireless receiver, a wireless transmitter, a display, a voice input module, a speaker, and a touch screen, the smart phone or tablet configured to receive and to process at least a portion of the output signal, wherein the smart phone or tablet is configured to store and display the processed output signal, wherein at least a portion of the processed output signal is configured to be transmitted over a wireless transmission link. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method of measuring physiological information, the method comprising providing a wearable device for use with a smart phone or tablet, the smart phone or tablet comprising a wireless receiver, a wireless transmitter, a display, a voice input module, a speaker, and a touch screen, the wearable device being capable of performing all of the steps comprising:
-
generating an input optical beam having one or more optical wavelengths using a light source comprising a plurality of light emitting diodes (LEDs) by modulating at least one of the LEDs, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers; delivering a portion of the input optical beam to tissue using one or more lenses; receiving and reflecting, by a reflective surface, at least a portion of the input optical beam reflected from the tissue; capturing light while the LEDs are off and converting the light into a first signal; capturing light while the at least one of the LEDs is on and converting the captured light into a second signal, the captured light including at least a portion of the input optical beam reflected from the tissue; increasing a signal-to-noise ratio of the input optical beam reflected from the tissue and the reflective surface by increasing a light intensity from at least one of the plurality of light emitting diodes and by differencing the light captured while the at least one LED is on and the light captured while the LEDs are off; generating an output signal representing at least in part a non-invasive measurement on blood contained within the tissue; and transmitting at least a portion of the output signal to the smart phone or tablet for processing to generate a processed output signal and for transmitting from the smart phone or tablet at least a portion of the processed output signal over a wireless transmission link. - View Dependent Claims (7, 8, 9, 10)
-
Specification