Methods for monitoring a blood glucose level in a person using radio waves
AssigneeMovano Inc.
InventorMichael A. Leabman
Life of this patent
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Abstract
A method for monitoring a blood glucose level in a person involves transmitting millimeter range radio waves over a three-dimensional (3D) space below the skin surface of a person. receiving radio waves on multiple receive antennas, the received radio waves including a reflected portion of the transmitted radio waves, isolating a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas, and outputting a signal that corresponds to a blood glucose level in the person in response to the isolated signal.
Claims20
A method for monitoring a blood glucose level in a person, the method comprising:
- transmitting radio waves in a frequency range of 122-126 GHz over a three-dimensional (3D) space below a skin surface of a person;
- receiving radio waves on multiple receive antennas of a two-dimensional array of receive antennas, the received radio waves including a reflected portion of the transmitted radio waves;
- isolating a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas;
- and
- outputting a signal that corresponds to a blood glucose level in the person in response to the isolated signal;
- wherein transmitting the radio waves over the 3D space below the skin surface of the person comprises transmitting the radio waves in a stepped frequency pattern;
- and
- wherein isolating the signal from the particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas comprises implementing near-field beamforming signal processing to isolate signals reflected from a blood vessel of the person from signals that correspond to reflections from anatomical features of the person other than the blood vessel, wherein the near-field beamforming involves steering each receive antenna of the two-dimensional array of receive antennas independently to a different angle;
- wherein the transmitting, receiving, isolating, and outputting occurs in a wearable device that is attached to the person.
A method for monitoring a health parameter in a person, the method comprising:
- transmitting radio waves in a frequency range of 122-126 GHz over a three-dimensional (3D) space below a skin surface of a person;
- receiving radio waves on multiple receive antennas of a two-dimensional array of receive antennas, the received radio waves including a reflected portion of the transmitted radio waves;
- isolating a signal from a particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas;
- and
- outputting a signal that corresponds to a health parameter in the person in response to the isolated signal;
- wherein transmitting the radio waves over the 3D space below the skin surface of the person comprises transmitting the radio waves in a stepped frequency pattern;
- and
- wherein isolating the signal from the particular location in the 3D space in response to receiving the radio waves on the multiple receive antennas comprises implementing near-field beamforming signal processing to isolate signals reflected from a blood vessel of the person from signals that correspond to reflections from anatomical features of the person other than the blood vessel, wherein the near-field beamforming involves steering each receive antenna of the two-dimensional array of receive antennas independently to a different angle;
- wherein the transmitting, receiving, isolating, and outputting occurs in a wearable device that is attached to the person.
Dependencies are inferred from the claim text.