# US 2021/0241900 A1 · Smart patch for monitoring health metrics > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0241900 A1 - Document ID: US20210241900A1 - Status: Published application - Kind: A1 - Application number: 17/235,650 - Filed: 2021-04-20 - Published: 2021-08-05 - Earliest claimed: 2019-10-25 - Assignees: Anexa Labs LLC - Applicants: Anexa Labs LLC - Inventors: Alexey Reykhert - Web page: https://patentgrep.com/patent/US20210241900A1 ## CPC - G16H 40/63: for local operation - A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20) - A61B 5/1118: {Determining activity level} - A61B 5/1123: {Discriminating type of movement, e.g. walking or running (A61B5/1116, A61B5/112 take precedence)} - A61B 5/282: Holders for multiple electrodes (for introduction into the body A61B5/287) - A61B 5/332: Portable devices specially adapted therefor - A61B 5/6831: {Straps, bands or harnesses} - A61B 5/6832: {using adhesives (conductive adhesive for bioelectric electrodes A61B5/259)} - A61B 5/6833: {Adhesive patches} - A61B 5/6838: {Clamps or clips} - A61B 5/721: {using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured} - G16H 50/30: for calculating health indices; for individual health risk assessment - A61B 5/0075: {by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy (A61B5/0071 takes precedence)} - A61B 5/02108: {from analysis of pulse wave characteristics} - A61B 5/02427: {Details of sensor} - A61B 5/1116: {Determining posture transitions} - A61B 5/1126: {using a particular sensing technique} - A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement} - A61B 5/14542: {for measuring blood gases (A61B5/14551 takes precedence)} - A61B 5/257: using adhesive means, e.g. adhesive pads or tapes - A61B 5/33: specially adapted for cooperation with other devices - A61B 2560/0443: Modular apparatus - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A smart patch includes a computing device to monitor user health metrics. The smart patch also includes an adhesive coupled to a cradle with an opening and coupled to at least two electrodes capable of electrically coupling to the user. The computing device contains one or more sensors, a battery and a sensor window. The sensors are configured to interface with the user to generate physiological data associated with the user's health. The battery is configured to power the sensors. The computing device is removably coupled to the cradle. The cradle is configured to engage the computing device securing the computing device to the adhesive. The electrodes electrically couple to the user's skin and conduct electrical signals between the user and the computing device. ## Claims ### Claim 1 A smart patch to monitor health metrics of a user, comprising: an adhesive for attaching the smart patch to a skin of the user; a cradle coupled to the adhesive and having an opening for access to the skin of the user; at least two electrodes attached to the adhesive and capable of electrically coupling to the user; and a computing device that is selectively removable from the cradle and including: a sensor window; a battery; circuitry coupled to the at least two electrodes to measure electrical activity from the skin of the user; and one or more sensors configured to interface with the skin of the user, through the sensor window and the opening of the cradle, to generate physiological data associated with the health metrics of the user. ### Claim 2 (depends on 1) The smart patch of claim 1, wherein the one or more sensors comprise a photoplethysmogram (PPG) sensor, and when the computing device is secured to the cradle, the PPG sensor interfaces with the user via the sensor window and the opening of the cradle by (i) emitting light that passes through the sensor window and the opening of the cradle, and (ii) receiving reflected light that passes through the sensor window and the opening of the cradle. ### Claim 3 (depends on 1) The smart patch of claim 1, wherein the sensor window of the housing is made from translucent materials including plastic, sapphire crystals, mineral crystals, plexiglass, hesalite crystals, or glass. ### Claim 4 (depends on 1) The smart patch of claim 1, wherein: the adhesive is configured to secure the at least two electrodes to the skin of the user, wherein the at least two electrodes are disposed in the adhesive such that a first end of each of the at least two electrodes contacts the skin of the user and a second end of each of the at least two electrodes interfaces with the computing device. ### Claim 5 (depends on 1) The smart patch of claim 1, wherein the computing device comprises at least one memory unit to store physiological data associated with the user, the physiological data being captured from the at least two electrodes and the one or more sensors. ### Claim 6 (depends on 1) The smart patch of claim 1, further comprising: a network interface configured to: communicate with one or more external devices, provide a physical location of the smart patch as location data, or both, wherein the network interface supports cellular, Wi-Fi, Bluetooth, Bluetooth Low Energy, GPS, or any combination thereof. ### Claim 7 (depends on 1) The smart patch of claim 1, wherein the least two electrodes protrude from a top surface of the cradle. ### Claim 8 (depends on 7) The smart patch of claim 7, wherein the computing device further comprises: a sensor printed circuit board (PCB) including PCB contacts and configured to electrically connect the PCB contacts to the one or more sensors, one or more metal connecting pads, wherein when the computing device is coupled to the cradle, the at least two electrodes protruding from the surface of the cradle are electrically connected to the PCB contacts via the one or more metal connecting pads. ### Claim 9 (depends on 8) The smart patch of claim 8, wherein: the one or more metal connecting pads are configured to facilitate an electrical connection between the PCB contacts and the at least two electrodes attached to the adhesive. ### Claim 10 (depends on 8) The smart patch of claim 8, wherein the computing device further comprises: a main PCB; and a mechanical holder configured to secure the battery such that the battery is sandwiched between the sensor PCB and the main PCB. ### Claim 11 (depends on 10) The smart patch of claim 10, further comprising: a flexible PCB connector configured to electrically connect the main PCB to the sensor PCB. ### Claim 12 (depends on 1) The smart patch of claim 1, wherein the computing device is removably coupled to the cradle via a pressure fit between the computing device and the cradle, a latch between the computing device and the cradle, or a fastener between the computing device and the cradle. ### Claim 13 (depends on 1) The smart patch of claim 1, wherein the computing device is waterproof, the adhesive is waterproof, the at least two electrodes are waterproof, or any combination thereof. ### Claim 14 (depends on 1) The smart patch of claim 1, wherein the generated physiological data includes a glucose level of the user, a blood pressure of the user, a blood oxygen level of the user, a heart rate of the user, an electrocardiogram (ECG) waveform of the user, a level of skin moisture of the user, a temperature of the user, an activity level of the user, a body position of the user, an image of a skin of the user, a thermal image of the skin of the user, or any combination thereof. ### Claim 15 (depends on 1) The smart patch of claim 1, wherein the computing device is configured to removably couple to a charging station such that when the computing device is coupled to the charging station, the computing device is not coupled to the cradle. ### Claim 16 (depends on 15) The smart patch of claim 15, wherein the computing device further includes one or more charging ports configured to removably couple to the charging station, the one or more charging ports configured to facilitate charging of the battery by the charging station. ### Claim 17 (depends on 15) The smart patch of claim 15, wherein the battery is wirelessly charged by the charging station when the computing device is coupled to the charging station. ### Claim 18 (depends on 1) The smart patch of claim 1, wherein the one or more sensors include a temperature sensor, a pulse oximeter, optical array sensors, an impedance measurement unit, an impedance spectroscopy measurement unit, a radar sensor, inertial measurement unit (IMU), an accelerometer, a gyroscope, a magnetometer or a combination thereof. ### Claim 19 (depends on 1) The smart patch of claim 1, wherein the at least two electrodes include electrocardiogram (ECG) electrodes. ### Claim 20 (depends on 1) The smart patch of claim 1, wherein the computing device further comprises: a near field communication (NFC) module configured to be communicatively coupled to a second NFC module of at least one electronic device; and a wireless interface configured to communicate with the electronic device via the established wireless link.