Headband pro personal device for measuring physiological parameters

Abstract

The present technical solution relates to the field of computing. A wearable device for measuring physiological parameters of a user has a body in the form of a flexible non-stretchable strip (101) made of hypoallergenic silicone and having fasteners (104) for a flexible length-adjustable stretchable strap (105), the design of the body being that of a band to be worn on the user's head, wherein the wearable device for measuring physiological parameters comprises the following interconnected elements: an electronic circuit board (111) with the following modules arranged thereon: an AD converter, a crystal oscillator of a Real Time Clock (RTC), a ROM, a Bluetooth communication module, an accelerometer, and a gyroscope; a rechargeable battery (115); a light-emitting diode (103); a photoplethysmography module (112); a photoplethysmography sensor (114); four spring-loaded dry electrodes (106, 107, 109, 110); a dry flat reference electrode (REF) (108); and a dry flat ground electrode (GND) (113), wherein all of the elements of the device are disposed inside the body thereof and are interconnected to one another.

Description

[0001] PERSONAL DEVICE HEADBAND PRO FOR MEASURING PHYSIOLOGICAL PARAMETERS

[0002] AREA OF TECHNOLOGY

[0003] The utility model relates to the field of computer technology, in particular, to a device for measuring the physiological parameters of a user.

[0004] LEVEL OF TECHNOLOGY

[0005] The closest analogue of the present technical solution is the information source US 2016345901 A1, published 01.12.2016. This solution discloses a portable brain activity monitor with electromagnetic brain activity sensors that are held on a person's head using a partially circumferential headband. The partially circumferential headband goes around the lower back surface of the person's head, from one ear to the other, and has front ends that extend upward from the person's ears along the sides of the person's forehead.

[0006] The proposed technical solution has the following distinctive features: due to the design of PogoPin electrodes for EEG signal recording (electroencephalogram of the brain), high-quality data recording from hairy areas of the head is achieved without any preliminary preparation (use of saline and / or gel); due to the location of the EEG electrodes at positions T3 / T4 / O1 / O2 and the reference "on the forehead", high-quality signal recording is achieved from all areas of the brain located in the cerebral cortex, in particular: confident detection of Alpha, Beta, Theta rhythms of the brain; The use of PPG (photoplethysmogram) and MEMS sensors together with EEG sensors at the above locations allows enriching physiological data and using hypotheses related not only to EEG, but also to movement and heart rate data, building algorithmic solutions at the "junction of sciences";the use of an elastic band in the design of the device allows its size to be adapted to almost all head sizes.;

[0007] DISCLOSURE OF UTILITY MODEL

[0008] The objective of the claimed utility model is to develop a portable device for measuring the physiological parameters of the user.

[0009] The technical result of the claimed utility model is the expansion of the arsenal of technical means of a portable device.

[0010] The stated technical result is achieved by means of a portable device for measuring the physiological parameters of the user, the body

[0011] 1

[0012] SUBSTITUTE SHEET (RULE 26) which is implemented in the form of a flexible non-stretchable band (101) made of hypoallergenic silicone, with fasteners (104) for a flexible stretchable elastic band (105) adjustable in length, wherein the design of the body is a hoop intended for placement on the user's head, wherein the portable device for measuring physiological parameters contains the following elements connected to each other: an electronic board (111) with modules placed on it: ADC, Real Time Clock (RTC) quartz resonator, ROM, Bluetooth communication module, accelerometer, gyroscope; battery (115); LED (103); photoplethysmogram module (112); photoplethysmogram sensor (114);

[0013] 4 spring-loaded dry electrodes (106, 107, 109, 110); dry flat reference electrode (REF) (108); dry flat electrode: ground (GND) (113), with all elements of the device located inside its housing and interconnected.

[0014] In a particular embodiment of the described solution, the measured physiological parameters are an electroencephalogram of the brain, a photoplethysmogram, and gyroscope-accelerometer data.

[0015] BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be more understandable from a description that is not limiting in nature and is provided with references to the accompanying drawings, which show:

[0017] Fig. 1 illustrates a portable device (front view).

[0018] Fig. 2 illustrates the portable device (rear view).

[0019] IMPLEMENTATION OF A UTILITY MODEL

[0020] In the detailed description of the implementation of the utility model given below, numerous implementation details are provided, intended to provide a clear understanding of the present utility model. However, it will be obvious to a person skilled in the subject area how the present utility model can be used, both with and without these implementation details. In other cases, well-known methods, procedures and components have not been described in detail, so as not to unnecessarily complicate the understanding of the features of the present utility model.

[0021] 2

[0022] SUBSTITUTE SHEET (RULE 26) In addition, it will be clear from the above presentation that the utility model is not limited to the given implementation. Numerous possible modifications, changes, variations and replacements, preserving the essence and form of the present utility model, will be obvious to specialists qualified in the subject area.

[0023] This technical solution relates to devices for measuring the physiological parameters of the user. The device allows for autonomous measurement of electroencephalogram (EEG), photoplethysmography (PPG), acceleration and angular velocity data and transmitting the obtained data to the target computing device (e.g., a tablet and / or personal computer (PC) and / or the user's mobile device (mobile phone)).

[0024] A portable personal device (hereinafter referred to as the Device) for measuring physiological parameters (electroencephalogram (EEG), photoplethysmography (PPG), acceleration and angular velocity) is implemented in the form factor of a hoop (Neiry Headband Pro).

[0025] The implementation of the utility model will be described further in accordance with the attached drawings, which are presented to explain the essence of the utility model and in no way limit the scope of the utility model. The following drawings are attached to the application:

[0026] Fig. 1. Device (front view).

[0027] Item 101 - silicone body; Item 102 - on / off button; Item 103 - LED; Item 104 - rubber band mounts; Item 105 - rubber band.

[0028] Fig. 2. Device (rear view).

[0029] Pos. 106 - dry electrode Pogo Pin: 01; pos. 107 - dry electrode Pogo Pin: TZ; pos. 108 - dry flat electrode: REF; pos. 109 - dry electrode Pogo Pin: T4; pos. 110 - dry electrode Pogo Pin: 02; pos. 111 - electronic board; pos. 112 - PPG module; pos. 113 - dry flat electrode: GND; pos. 114 - PPG sensor; pos. 115 - battery.

[0030] 3

[0031] SUBSTITUTE SHEET (RULE 26) The electronic board implements the following functional capabilities.

[0032] Receiving an electroencephalogram (EEG). The signal is recorded by digitalizing the signal with the ADC module at a frequency of 250 Hz, from leads that are dry Pogo Pin electrodes (25 pin: 01 (106), T3 (107), T4 (109), 02 (110)) in the form of a comb of pin spring-loaded gold-plated contacts, as well as the common and reference electrodes (GND (113), REF (108)), located on the frontal part and representing dry flat electrodes in the form of gold-plated conductors.

[0033] Obtaining a photoplethysmogram by digitizing the reflected signal in the red or infrared ranges from the PPG sensor (114) located in the right temporal region using the PPG module (112).

[0034] Acquiring microelectromechanical systems data by digitizing gyroscope and accelerometer data with a MEMS module to analyze acceleration and angular velocity along three orthogonal axes.

[0035] Transfer of collected and packaged data via a BLE 5.0 standard communication module to a personal computer (PC) and / or telephone.

[0036] This technical solution is implemented as follows.

[0037] After pressing the device's power button and closing the contacts, the battery supplies reference voltage to the electronic board and its modules. All modules are initialized. After that, the microprogram is read from the ROM module, according to which the device functions in the future.

[0038] In the "default" mode, the device is ready for operation and mode switching (impedance measurement, EEG signal measurement, PPG, MEMS sensor readings). The LED blinks evenly at a frequency of 1 time per second.

[0039] To put the device into pairing mode with the target device (e.g. PC and / or phone and / or tablet), press the power button for 2 seconds, the LED will blink 2 times per second. This will start the firmware "pairing" mode and activate the corresponding Bluetooth module mode.

[0040] After pairing via Bluetooth with the target device, its Bluetooth MAC address data will be transferred by the Bluetooth module to the ROM chip and saved (up to 10 devices). Thus, the pairing procedure will not be required again the next time you turn it on.

[0041] To turn the power on and off again, press and hold the power button for 1 second.

[0042] 4

[0043] SUBSTITUTE SHEET (RULE 26) In the impedance measurement mode, the ROM, ADC, RTC (quartz resonator), Bluetooth modules are activated, and the potential difference between the target electrodes (T3, T4, 01, 02) and the reference (REF) electrode is measured to determine the quality of the electrode-skin contact. The measurement results are transmitted via the Bluetooth module via the communication channel to the target device in kOhm units.

[0044] In the EEG signal measurement mode, the ROM, ADC, RTC (quartz resonator), Bluetooth modules are activated and measurements of the potential difference between the target and reference electrodes are performed. The ADC polls the target electrodes at a frequency of 250 Hz, then this data is sent to the Bluetooth module for sending to the target device.

[0045] In the PPG signal measurement mode, the ROM, ADC, RTC (quartz resonator), Bluetooth modules are activated and measurements of reflected light in the red or infrared ranges coming from the PPG sensor at a frequency of 100 Hz are carried out, then this data is sent to the Bluetooth module for sending to the target device. PPG (photoplethysmography) is a method of measuring the volume of blood in vessels using light radiation. PPG operates on the principle of determining tissue density.

[0046] The PPG sensor is connected to the PPG module and the general electronic board of the device, and is designed to: receive information, send data to the electronic board, and then send it to the target device.

[0047] The PPG sensor includes internal LEDs that can operate in both red and infrared ranges, a photodetector, and low-noise electronics with external light suppression.

[0048] The device uses a type of sensor that measures reflected light.

[0049] In the MEMS sensor signal measurement mode, the ROM, ADC, RTC (quartz resonator), Bluetooth modules are activated and position measurements are made along three orthogonal axes, then this data is sent to the Bluetooth module for sending to the target device.

[0050] The device operation allows operation in the mode of simultaneous measurement of EEG, PPG, MEMS data, in this case, according to the firmware mode, the ROM, ADC, RTC (quartz resonator), Bluetooth, PPG, MEMS modules are activated. In this case, all the allocated space in the Bluetooth data packet will be occupied.

[0051] Switching between modes is done by sending commands to the device via the Bluetooth protocol.

[0052] In measurement mode, the LED lights up evenly.

[0053] 5

[0054] SUBSTITUTE SHEET (RULE 26) If the device is turned on and is in the "standby" mode (no measurement mode is selected), then following the firmware mode, the device will turn off after 15 minutes to save battery power.

[0055] The neurointerface with a built-in neuroamplifier is implemented on the basis of the Texas Instruments ADS 1294 ADC with a sampling frequency of 250 Hz, with leads T3, T4, 01, 02 (according to the international 10 / 20 scheme), a PPG signal analysis module, with a sensor located in the right temporal region, a MEMS module for analyzing acceleration and angular velocity along three orthogonal axes. The device includes a BLE 5.0 communication module.

[0056] The electronic module and battery are two parts placed on a flexible printed circuit board.

[0057] To register EEG signals, the device uses dry electrodes (25 pin: 01, T3, T4, 02) in the form of a comb of pin spring-loaded gold-plated contacts (Pogo Pin). The common and reference electrodes (GND, REF) are located on the frontal part and are dry flat electrodes in the form of gold-plated conductors of the flexible printed circuit board of the device. The electrodes are located according to the extended electrode arrangement scheme, according to the 10-20 system: 01, T3, T4, 02. The designation of channel names is strictly regulated by the International Federation of Clinical Neurophysiology.

[0058] To register PPG signals, the device uses an integrated PPG system that combines the functions of Heart Rate and a pulse oximeter by using a light-emitting diode and a photodetector that operates in two modes: infrared and red spectra.

[0059] To control the movement of the device in space, an integrated MEMS system is used, combining a gyroscope that determines angular velocities along three orthogonal axes and an accelerometer that determines accelerations along three orthogonal axes.

[0060] The device has one on / off button, one connector for connecting to the charger, two LEDs - green and red. The switched off device is completely de-energized and does not consume energy. The device has an autonomous power supply in the form of a built-in Li-Pol battery. To connect the device to the charger, a cable with a magnetic connector on one side and a USB connector on the other side is used.

[0061] The device supports the following operating modes:

[0062] - resistance measurement - to determine the quality of electrode adhesion;

[0063] 6

[0064] SUBSTITUTE SHEET (RULE 26) - sending the values ​​of the built-in battery charge;

[0065] - measurement of data (EEG signal, PPG signal and MEMS, or a combination of EEG and PPG signals);

[0066] - charging and completion of charging the device.

[0067] After launching the user application and authorization (if user registration is required), the software searches for a device ready for connection via Bluetooth upon request. If such a device has been found, the quality of the electrode application is checked - resistance measurement, if the quality is satisfactory and the resistance values ​​for each electrode are less than 1000 kOhm, it becomes possible to switch to the EEG and PPG recording mode.

[0068] In the physiological data acquisition mode, for EEG the device conducts surveys at a frequency of 250 Hz, for each of the electrodes, when collecting 8 readings, they are packed into a BLE packet and sent via the Bluetooth communication channel to the target device with the running software.

[0069] For PPG data, the device polls at 100 Hz and sends the data in the same BLE packet over Bluetooth as the EEG data.

[0070] Additional technical advantages of this technical solution.

[0071] - Thanks to the design of the PogoPin electrodes for EEG signal acquisition, high-quality data acquisition is achieved from areas of the head covered with hair, without any preliminary preparation (use of saline and / or gel).

[0072] - Due to the location of the electrodes for recording EEG in the T3 / T4 / O1 / O2 positions and the reference "on the forehead", high-quality signal recording is achieved from all areas of the brain located in the cerebral cortex, in particular: confident detection of Alpha, Beta, Theta rhythms of the brain.

[0073] - The use of PPG and MEMS sensors together with EEG sensors in the above-mentioned places allows us to enrich physiological data and use hypotheses related not only to EEG, but also to movement and pulse measurement data, building algorithmic solutions at the “junction of scientific fields”.

[0074] - The use of an elastic band in the design of the device allows its size to be adapted to almost all head sizes.

[0075] All elements of the device are interconnected and placed inside a flexible silicone case made of medical silicone ToolDecor T 125 (or silicone ToolDecor T 20-240). The length of the flexible band is selected to ensure maximum coverage of head sizes. In the occipital part of the silicone case

[0076] 7

[0077] SUBSTITUTE SHEET (RULE 26) The device has fastenings for a flexible, stretchable, length-adjustable elastic band that presses the device to the person’s head.

[0078] The device is intended for individual use.

[0079] The present application materials present a preferred disclosure of the implementation of the claimed technical solution, which should not be used as limiting other, particular embodiments of its implementation that do not go beyond the scope of the requested scope of legal protection and are obvious to specialists in the relevant field of technology.

[0080] SUBSTITUTE SHEET (RULE 26)

Claims

Formula 1. A portable device for measuring the user's physiological parameters, the body of which is implemented in the form of a flexible non-stretchable tape (101) made of hypoallergenic silicone, with fasteners (104) for a flexible stretchable elastic band (105) adjustable in length, wherein the design of the body is a hoop intended for placement on the user's head, wherein the portable device for measuring physiological parameters contains the following elements connected to each other: an electronic board (111) with modules placed on it: ADC, Real Time Clock (RTC) quartz resonator, ROM, Bluetooth communication module, accelerometer, gyroscope; battery (115); LED (103); photoplethysmogram module (112); photoplethysmogram sensor (114); 4 spring-loaded dry electrodes (106, 107, 109, 110); dry flat reference electrode (REF) (108); dry flat electrode: ground (GND) (113), with all elements of the device located inside its housing and interconnected.

2. A portable device according to item 1, wherein the measured physiological parameters are an electroencephalogram of the brain, a photoplethysmogram, and gyroscope-accelerometer data. 9 SUBSTITUTE SHEET (RULE 26)

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