# US 11,896,401 B2 · Personal healthcare device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,401 B2 - Document ID: US11896401B2 - Status: Granted - Kind: B2 - Application number: 17/142,093 - Filed: 2021-01-05 - Published: 2021-07-29 - Granted: 2024-02-13 - Earliest claimed: 2017-05-05 - Assignees: Helo Corp. - Applicants: Helo Corp. - Inventors: Fabio Galdi - Web page: https://patentgrep.com/patent/US11896401B2 ## CPC - A61B 5/7267: {involving training the classification device} - A61B 5/0013: {Medical image data (A61B1/00011, A61B6/56, A61B8/56 take precedence)} - A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition - A61B 5/02433: {for infrared radiation} - A61B 5/02438: {with portable devices, e.g. worn by the patient} - A61B 5/1118: {Determining activity level} - A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement} - A61B 5/1455: using optical sensors, e.g. spectral photometrical oximeters - A61B 5/681: {Wristwatch-type devices} - A61B 5/7246: {using correlation, e.g. template matching or determination of similarity} - A61B 5/7278: {Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals} - A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)} - G16H 20/30: relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising - G16H 40/67: for remote operation - G16H 50/20: for computer-aided diagnosis, e.g. based on medical expert systems - G16H 50/30: for calculating health indices; for individual health risk assessment - A61B 5/0002: {Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network (endoradiosondes A61B5/07)} - A61B 5/02: Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow - A61B 5/021: Measuring pressure in heart or blood vessels - A61B 5/024: Measuring pulse rate or heart rate - A61B 5/165: {Evaluating the state of mind, e.g. depression, anxiety} - A61B 5/4815: {Sleep quality} - A61B 2562/0233: Special features of optical sensors or probes classified in A61B5/00 - A61B 2562/0238: Optical sensor arrangements for performing transmission measurements on body tissue - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA ## Abstract A method and system for measuring personal health, the method comprising detecting a photoplethysmograph (PPG) wave, the PPG wave generated based on a combination of infra-red and red lights, transmitting the PPG wave to a server, the server processing the PPG wave to infer biometric statistics based on machine learned correlations generated from a training set of PPG waves and biometric data, receiving the biometric statistics from the server, and generating display data based on the biometric statistics. ## Claims ### Claim 1 A method, in a data processing system comprising a processor and a memory, for measuring personal health, the method comprising: detecting a photoplethysmograph (PPG) wave by a personal healthcare device, the PPG waves are generated by lights emitted from the personal healthcare device, wherein the personal health care device comprises: an inline sensor (IS) comprising a first Light Emitting Diode (LED), a second LED, and a photodiode, the photodiode located on the IS between the first and second LEDs and configured relative thereto to receive reflected light from the first and second LEDs, and a first and second angular mirror, each configured to reflect light toward a user's skin and for the user's skin to reflect light back to the photodiode, wherein light from the first LED is directed to the user's skin via the first angular mirror, and light from the second LED is directed to the user's skin via the second angular mirror, such that the light from the first LED is reflected back off of blood glucose molecules to the photodiode at a first predetermined angle and light from the second LED is reflected back off of blood glucose molecules to the photodiode at a second predetermined angle, wherein the personal healthcare device generates the detected PPG wave based on the light reflected off of the user's skin; transmitting the detected PPG wave to a server, wherein the server processes the PPG wave and infers therefrom biometric data; receiving the biometric data from the server; and generating an interface screen comprising the biometric data. ### Claim 2 (depends on 1) The method of claim 1, wherein the first LED has a first wavelength in the near infrared spectrum and the second LED has a second wavelength in the near infrared spectrum. ### Claim 3 (depends on 1) The method of claim 1, wherein a first intermediate detected PPG wave is generated from light reflected off of the user's skin from the first LED and a second intermediate detected PPG wave is generated from light reflected off of the user's skin from the second LED, and the detected PPG wave is generated from the combination of the first and second intermediate detected PPG waves. ### Claim 4 (depends on 1) The method of claim 1, wherein the first Previously Presented LED has a wavelength of about 1550 nm±10% and the second LED has a wavelength of about 1300 nm±10%. ### Claim 5 (depends on 1) The method of claim 1, wherein the first LED has a wavelength of approximately 1550 nm and the second LED has a wavelength of approximately 1300 nm. ### Claim 6 (depends on 1) The method of claim 1, wherein the first predetermined angle is about 45 degrees and the second predetermined angle is about 90 degrees. ### Claim 7 (depends on 1) The method of claim 1, wherein light from the first and second LEDs is reflected off blood glucose molecules at a depth of about 4 millimeters below the skin surface. ### Claim 8 (depends on 1) The method of claim 1, wherein the inline sensor further comprises a PCB, and the first and second LEDs, photodiode, and first and second angular mirrors are each attached to the PCB. ### Claim 9 (depends on 8) The method of claim 8, wherein the first and second LEDs are configured to emit light in a direction parallel to the PCB, and wherein the mirrors reflect the emitted light at an oblique angle relative to the PCB. ### Claim 10 (depends on 1) The method of claim 1, wherein the biometric data comprises blood glucose levels. ### Claim 11 (depends on 1) The method of claim 1, wherein the server processes the PPG wave and infers therefrom biometric statistics and wherein the biometric statistics comprise at least one of overall health, changes in health, mood, sleep quality, fatigue, and stress. ### Claim 12 (depends on 1) The method of claim 1, wherein at least one of the mirrors has a single reflective surface. ### Claim 13 (depends on 1) The method of claim 1, wherein the photodiode has a wavelength sensitivity range between 900 nm to 1700 nm. ### Claim 14 (depends on 1) The method of claim 1, wherein the first LED has a first wavelength in the red or near infrared spectrum, the second LED has a second wavelength in the red or near infrared spectrum, and the photodiode has a wavelength sensitivity range in the red or near infrared spectrum. ### Claim 15 A wearable device for measuring personal health comprising: a personal healthcare device configured to detect a photoplethysmograph (PPG) wave based on a combination of lights generated from the personal healthcare device, the personal health care device comprising: an inline sensor (IS) comprising a first Light Emitting Diode (LED), a second LED, and a photodiode, the photodiode located on the IS between the first and second LEDs and configured relative thereto to receive reflected light from the first and second LEDs; a first and second angular mirror, each configured to reflect light toward a user's skin and for the user's skin to reflect light back to the photodiode, wherein light from the first LED is directed to the user's skin via the first angular mirror, and light from the second LED is directed to the user's skin via the second angular mirror, such that the light from the first LED is reflected back off of blood glucose molecules to the photodiode at a first predetermined angle and light from the second LED is reflected back off of blood glucose molecules to the photodiode at a second predetermined angle, wherein the personal healthcare device generates the detected PPG wave based on the light reflected off of the user's skin; a network communication module configured to transmit the detected PPG wave to a server, wherein the server processes the PPG wave and infers therefrom biometric data; and an interface screen configured to display the biometric data. ### Claim 16 (depends on 15) The wearable device of claim 15 wherein the server processes the PPG wave and infers therefrom biometric statistics and wherein the biometric statistics comprise at least one of overall health, changes in health, mood, sleep quality, fatigue, and stress. ### Claim 17 (depends on 15) The wearable device of claim 15, wherein the photodiode has a wavelength sensitivity range between 900 nm to 1700 nm. ### Claim 18 A wearable device for measuring personal health comprising: a personal healthcare device configured to detect a photoplethysmograph (PPG) wave based on a combination of lights generated from the personal healthcare device, the personal health care device comprising: an inline sensor (IS) comprising a PCB, a first Light Emitting Diode (LED), a second LED, a photodiode, and a first and second angular mirror, wherein the first and second LEDs, photodiode, and first and second angular mirrors are each attached to the PCB, the photodiode is located on the IS between the first and second LEDs and configured relative thereto to receive reflected light from the first and second LEDs; and the first and second angular mirror are each configured to reflect light from either of the first and second LEDs toward a user's skin and for the user's skin to reflect light back to the photodiode, wherein the personal healthcare device generates the detected PPG wave based on the light reflected off of the user's skin; a network communication module configured to transmit the detected PPG wave to a server, wherein the server processes the PPG wave and infers therefrom biometric data; and an interface screen configured to display the biometric data. ### Claim 19 (depends on 18) The wearable device of claim 18, wherein the first and second LEDs are configured to emit light in a direction parallel to the PCB, and wherein the mirrors reflect the emitted light at an oblique angle relative to the PCB. ### Claim 20 (depends on 18) The wearable device of claim 18, wherein the first LED has a first wavelength in the near infrared spectrum, the second LED has a second wavelength in the near infrared spectrum, and the photodiode has a wavelength sensitivity range between 900 nm to 1700 nm.