RU147501U1 - PERSONAL DEVICE FOR AUTOMATED MONITORING OF PARAMETERS OF THE CARDIOVASCULAR SYSTEM WITH THE POSSIBILITY OF EMERGENCY ALARMS IN THE EVENT OF CRITICAL SITUATIONS - Google Patents

Abstract

A device for automated monitoring of the parameters of the cardiovascular system, consisting of a microcontroller, an analog circuit, a pulse wave sensor, an acceleration sensor, an indicator and a keyboard, additionally contains: ECG electrodes designed to record electric potentials on the skin surface; a data transfer unit responsible for the exchange data with external devices: a personal computer, a mobile phone, a tablet computer and a remote Internet server; voltage regulators providing the required voltage level of all electronic components of the device; a battery that provides power to the entire device; a circuitry unit that provides a given charge mode of the battery; a memory unit that allows you to store the measurement history for the last few days.

Description

The utility model relates to the field of medicine, specifically to personal devices for automated monitoring of the parameters of the cardiovascular system with the possibility of emergency alerts in case of emergency.

A known method of non-invasive pulse diagnosis of the patient’s cardiac activity and measuring the speed of the pulse wave and a device for implementing this method (patent No. 2393759 from 07/10/2010), which consists in taking the parameters of the movement of the pulse wave recorded on the surface of the skin in the exit zone of the carotid and radial arteries by microstrip lines, using a device made in the form of a wristband, with the ability to synchronize biophysical data from a PC and mobile phones.

A device for measuring blood pressure (patent No. 2463951 from 10.20.2012) is known, which is used to measure blood pressure by the measured parameters of a pulse wave, made in the form of a wrist bracelet.

Known utility model "Mobile diagnostic device" (patent No. 128469 from 07.25.2013), used for individual self-assessment, control and monitoring of the state of health, for dynamic monitoring of the physiological and pathological state of the body, and for medical remote monitoring, made in the form of sensory a unit equipped with a GPS / GLONASS module; with the function of measuring body temperature; assessment of respiratory rate, heart rate variability and ST-segment dynamics.

The disadvantages of the known devices for diagnosing the cardiovascular system are the lack of emergency warning functions, the lack of functions for recording motor activity, the inability to synchronize with a remote Internet server, and the attachment of the sensor unit to the chest using an adhesive electrode, which can cause user inconvenience.

The closest in technical essence is the "Alarm device based on a heart rate system with integrated GPS / GLONASS navigation" (patent No. 124966 dated 02.20.2013), which includes a GPS module and / or GLONASS navigation and a vibration accelerometer with an electronic unit registering a person’s heart rhythm, the presence of algorithms for identifying extreme conditions of a person (including the psycho-emotional state) implemented in the device software and the possibility of automatic transmission over wireless channels alarm communication signal indicating the current geographical coordinates and the position of the human body in the event of one of the extreme conditions.

The disadvantages of the known device are the lack of functions for monitoring blood pressure, detecting arrhythmia and synchronization via wired and / or wireless communication channels.

A new technical task is the development of a personal device for automated monitoring of the parameters of the cardiovascular system with blood pressure monitoring and detection of arrhythmias and the possibility of emergency alerts in case of emergency.

To solve this problem, a device for automated monitoring of the parameters of the cardiovascular system, consisting of:

microcontroller and analog circuit;

pulse wave sensor;

acceleration sensor, indicator and keyboard;

additionally contains ECG electrodes designed to record electrical potentials on the skin surface;

a data transfer unit responsible for exchanging data with external devices: a personal computer, a mobile phone, a tablet computer and a remote Internet server;

voltage regulators providing the necessary level of supply voltage for all electronic components of the device;

a battery providing power to the entire device;

circuit assembly, providing a given mode of charge of the battery;

a memory unit that allows you to store the measurement history for the last few days.

A device for automated monitoring of the parameters of the cardiovascular system with the possibility of emergency notification in case of critical situations includes (Fig. 1) a microcontroller 1 (MK) that implements the functions of primary digital signal processing, a user interface and a protocol for exchanging data with external devices. Analog circuit 2 (AC), which implements the functions of filtering and amplifying signals received from a pulse wave sensor 4 (DPV), which is responsible for measuring the dependence of the blood supply of arteries (vessels) on time, and electrodes 3 of an ECG (E) designed to record electric potentials on skin surface. Acceleration sensor 5 (DU), which measures linear accelerations along three mutually perpendicular axes of space. It allows you to track the motor activity of the device user. Data Transfer Unit 6 (BAP), which is responsible for exchanging data with external devices: a personal computer, mobile phone, tablet computer, and a remote Internet server. This unit implements data transmission both through a wireless interface and wired synchronization. Keyboard 7 (K) is an information input tool that allows you to control the device (pushbutton switches, touch panels, etc.) and indicator 8 (I) - information output means, including light, sound and vibration alarms. Voltage regulators 9 (LV), providing the necessary voltage level for all electronic components of the device and charge circuit 11 (SZ) is a circuitry unit that provides a given charge mode of the battery 10 (AB) based on lithium-ion, lithium-polymer or other elements, providing power to the entire device. The battery capacity of 10 (AB) provides a battery life of at least 72 hours. Memory block 12 (BP) - allows you to store the measurement history for the last 7 days.

The dimensions of the electronic part of the device for automated monitoring of the parameters of the cardiovascular system with the possibility of emergency alerts in case of emergency, including all electronic components, are: length 10 ... 30 mm, width 10 ... 30 mm, height 5 ... 20 mm.

A device for automated monitoring of the parameters of the cardiovascular system with the possibility of emergency alerts in case of critical situations works as follows. The signals from the pulse wave sensor 4 (DPV) and ECG electrodes 3 (E) are continuously fed to the input of analog circuit 2 (AC), which implements filtering and matching signals with a digitization circuit, which can be made in the form of a separate microcircuit of an analog-to-digital converter, or integrated in microcontroller 1 (MK). Filtering is used to eliminate network interference, as well as to eliminate the effect of overlapping spectra. Microcontroller 1 (MK) performs primary signal processing - measuring and indicating heart rate and heart rate in the range from 0 to 400 beats per minute with an accuracy of 4 beats per minute, detecting deviations of the heart rhythm from the norm (increase / decrease in frequency), the presence of arrhythmia , change in heart rate variability. Also, with the help of MK, the fact of an increase / decrease in blood pressure is determined, determined by calculating the propagation time of the pulse wave. In addition, MK provides an interface for access to peripheral units: acceleration sensor 5 (DU), keyboard 7 (K), indicator 8 (I) and data transfer unit 6 (BPD), for emergency notification of dangerous deviations of the heart from normal . The PDU may include a set of communication modules, such as a radio frequency transceiver based on Bluetooth technology or a similar in functionality, GSM modem and GPS module (receiver). The last two modules (GSM-modem and GPS-module) may be absent in the final implementation of the device. In this case, emergency notification can be implemented using similar blocks of a mobile phone (smartphone) or any other external device with which a connection is currently established and which contains the above-mentioned modules. Access to such an external device is via a radio frequency transceiver based on Bluetooth technology or similar in functionality. Emergency notification can be implemented in the form of sending an SMS / MMS message and / or making a call, which contains information about the type of deviation of one or more parameters from the norm and about the current geographical coordinates of the device user. In addition to implementing the emergency notification function, an external device (mobile phone, tablet computer or any other mobile device) can be used to configure a device for automated monitoring of the cardiovascular system with the possibility of emergency notification in case of critical situations and data exchange with a remote Internet server. Settings can consist in setting individual user parameters, such as age, gender, height, etc., as well as for calibrating the device for a specific user. Also, the setting can be used to set the time and date, which can be displayed on indicator 8 (I). Data exchange with a remote Internet server can be carried out in order to save on it a long-term history of measurements and to carry out complex mathematical calculations. The device is powered from voltage regulators 9 (LV) connected to the battery 10 (AB), which in turn is connected to the charge circuit 11 (SZ). The history of measurements of the parameters of the cardiovascular system over the past 7 days is stored in memory unit 12 (BP). Structurally, the device can be made in the form of a wristband with a two-channel measuring system. The first channel registers an electrocardiogram (ECG). One ECG 3 (E) electrode is located on the lower surface of the bracelet case, where it is in contact with the outside of the wrist, and the second ECG 3 (E) electrode is located on the front side of the device. The electrodes are connected to analog circuit 2 (AC). The second channel provides a pulse wave signal pickup. A pulse wave can be obtained using a pulse wave sensor 4 (DPV), which detects the blood supply to the radial artery or blood vessels of the skin by the optical, optomechanical or electrical impedance method.

Claims (1)

A device for automated monitoring of the parameters of the cardiovascular system, consisting of a microcontroller, an analog circuit, a pulse wave sensor, an acceleration sensor, an indicator and a keyboard, further comprises: ECG electrodes designed to record electrical potentials on the skin surface; a data transfer unit responsible for exchanging data with external devices: a personal computer, a mobile phone, a tablet computer and a remote Internet server; voltage regulators providing the necessary level of supply voltage for all electronic components of the device; a battery providing power to the entire device; circuit assembly, providing a given mode of charge of the battery; a memory unit that allows you to store the measurement history for the last few days.

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