RU197114U1 - WEARABLE ELECTRONIC DEVICE FOR OBTAINING ELECTROCARDIOGRAPHIC MEASUREMENTS - Google Patents

Abstract

The claimed device relates to the field of medical technology, in particular to a wearable device for receiving electrocardiographic (ECG) measurements. A wearable electronic device for receiving electrocardiographic (ECG) measurements, comprising a housing mounted on the user's wrist, in which are installed: a display that provides information display; a microcontroller that controls the electronic device; ADC, which provides digital conversion of signals from electrodes; data storage means configured to store ECG data; a wireless communication module for transmitting data from the storage medium to an external computing device; the first electrode, combined with a capacitive button, providing activation of the ECG removal function and device control; the second and third electrodes located on the back of the body and providing, together with the first electrode, the registration of the ECG in the first lead; battery; a connector for connecting external electrodes that provide ECG registration in any standard lead. The device allows to increase mobility and autonomy by ensuring the availability of removing the electrocardiogram in the first lead from the device’s body, as well as in any standard lead using remote electrodes connected via a connector on the device’s body. 5 ill.

Description

FIELD OF TECHNOLOGY

The claimed device relates to the field of medical technology, in particular to a wearable device for receiving electrocardiographic (ECG) measurements. This device can be used to determine the rhythm of the heart, identify pathologies and monitor the effectiveness of the therapy for rhythm disturbances, identify pathologies for conduction abnormalities, for initial screening of other diseases of the cardiovascular system, clarify the diagnosis, and control the dynamics of previously identified pathologies.

BACKGROUND

A device for monitoring and analysis of physiological indicators, made in one case in the form of a wristband. The device is characterized in that the display is made using electronic paper technology (e-ink), in addition, the device additionally contains an electric field sensor EPIC (Electric Potential Integrated Circuit) for recording the user's electrocardiogram (RU 181546 U1, 06/13/2017).

A disadvantage of the known device is the ability to remove the ECG only in the first lead. There is no possibility of taking an ECG in other leads, which significantly limits the applicability and diagnostic accuracy of a medical device.

A close analogue is a cardiogram and photoplethysmogram device (RU 178268 RU, 06/13/2017), made as an accessory for mobile devices - mobile phones, smartphones, personal digital assistants (PDAs) with the functions of a mobile phone, iPhone or any other smartphone that works on the platform of Windows, Android, iOS or another, and is intended for simultaneous and synchronous registration of a cardiogram and two-channel photoplethysmogram using devices that have a digital or analog interface. The device has the ability to remove the electrocardiogram in any lead using external electrodes.

A significant drawback of this device is its small autonomy - the accessory cannot be used separately from the mobile device and does not allow to record ECG in the first lead using the built-in electrodes without connecting to a smartphone, which also limits its functionality.

DISCLOSURE OF USEFUL MODEL

The technical problem solved by the claimed device is the creation of a new wearable device that provides wide functionality in terms of obtaining ECG readings both from the electrodes of the device itself and with the help of remote connected electrodes, while possessing sufficient autonomy to perform the required operations using the built-in battery without the need for an external power source, which also positively affects its weight and size characteristics.

The technical result consists in increasing mobility and autonomy by ensuring the availability of removing the electrocardiogram in the first lead from the device’s body, as well as in any standard lead using external electrodes connected through a connector on the device’s body.

Moreover, due to the possibility of connecting remote electrodes, the field of applicability of the medical device and its field of applicability for the diagnosis of cardiovascular diseases are significantly improved.

The technical result is achieved due to a wearable electronic device for obtaining ECG measurements, which contains a housing mounted on the wrist of the user, in which are installed:

a display for displaying information;

a microcontroller that controls the electronic device;

ADC, which provides digital conversion of signals from electrodes;

data storage means configured to store ECG data;

a wireless communication module for transmitting data from the storage medium to an external computing device;

the first electrode, combined with a capacitive button, providing activation of the ECG removal function and device control;

the second and third electrodes located on the back of the body and providing, together with the first electrode, the registration of the ECG in the first lead;

battery;

a connector for connecting external electrodes that provide ECG registration in any standard lead.

In one embodiment, the device is in the form of a bracelet or watch.

In another particular embodiment, the display is a touch display.

In another private embodiment, the wireless module is a Bluetooth or Wi-Fi module.

In another private embodiment, the interface type of the connector for connecting external electrodes is a micro-USB, USB-C or Lightning type of connector.

In another private embodiment, the connector further provides charging of the device’s battery.

In another particular embodiment, the device further comprises wireless charging means.

Other examples of the implementation of the device, not beyond the scope of the requested legal protection, will be disclosed hereinafter in the present application materials.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 presents a diagram of the claimed device.

FIG. 2 - FIG. 4 illustrate an example implementation of the device in the form of a bracelet.

FIG. 5 illustrates an example of a device operation when transmitting data to a mobile device.

IMPLEMENTATION OF A USEFUL MODEL

In FIG. 1 shows a diagram of a wearable device (10). The device (10) comprises a housing (100), inside of which a display (101), a data storage means (102), a microcontroller (103), an ADC (104), and a first (109) analog interface are installed and connected via a common data bus electrodes (105) - (107) are connected, a second (110) analog interface is connected to which a connector for connecting external electrodes (108), a battery (111), a wireless communication module (112) and a touch button controller (113) are connected.

Wearable device (10) as shown in FIG. 2 - FIG. 5 may be performed, for example, in the form of a bracelet or watch. In particular, in the drawings, it is presented in the form of a bracelet, but this in no way limits other forms of its implementation while maintaining the required functionality. The device (10) is fixed on the wrist of the user using standard means, for example, a strap (114).

The body of the device (100) is made of a polymeric material, for example, plastic. On the outer part of the housing (100) there is a display (101), a first electrode (105) and a connector for connecting external electrodes (108).

The display (101) can be performed in monochrome, color, touch, etc. The first electrode (105) is paired with a capacitive (touch) button via the corresponding controller (113). The touch button controls the activation function of the ECG removal mode when it is pressed, and also provides control of the wearable device (10) and the functions embedded in it, for example, navigation through the interface, activation of modes, functions, etc. The device’s body (100) is integrated a connector (108) for connecting lead cables for ECG recording in any standard lead, in particular, in one of 12 leads. Connector (108) can also be used to charge internal battery (111). In this case, the device (10) can be additionally equipped with a means of wireless charging, in particular, induction (QI) charging.

The connector for connecting the electrodes (108) can be made on the basis of various types of connection interfaces, for example, micro-USB, USB-C, Lightning, and another type of connector suitable for connecting external electrodes.

The data storage means (102) is a memory for storing ECG readings obtained using electrodes (105) - (107) and in direct contact with the user's skin. The data storage means (102), for example, may be flash memory. Also, the device (10) contains a random access memory, which is a separate module located on a common board, or is integrated into a microcontroller (103).

The ADC (104) is a two-channel one and is designed to convert signals received from the electrodes (105) - (107) or an external lead cable connected to the connector (108), and their subsequent transmission to the microcontroller (103) for processing and storage in memory ( 102). The wireless communication module (112) is a Bluetooth or BLE module that provides pairing of the device (10) with a smartphone (200) (or other computing device) and transmission of the obtained ECG data.

The device (10) operates as follows.

During normal wearing of the device (10), as shown in FIG. 2, the display (101) shows the current time and date, the charge level of the built-in battery (111) and the Bluetooth communication indicator. This information is obtained by pairing the device (10) with a smartphone (200).

As shown in FIG. 4, when measuring the ECG by interacting with the electrodes on the housing (105) - (107) or when connecting an external cable through the connector (108), the charging indicator (1011) is displayed on the display (101), the countdown timer for the ECG is taken (1012 ), current heart rate (1013) and current ECG (1014). The pulse is measured at RR intervals by analyzing the data obtained by the ECG.

To remove the ECG from the electrodes (106) - (107) built into the device (10), the user, by touching the finger of the first electrode (105), for example, for 3-5 s, activates the ECG removal process, during which the countdown timer (1012) starts at the end of which the ECG is recorded in the internal memory (102). The timer, as a rule, has a time window range of 60 s, which is sufficient to obtain a clear ECG picture.

To remove the ECG from the external electrodes, you must connect the appropriate lead cable to the connector (108) on the device body (100). ECG data recorded in the internal memory (102) is transmitted via Bluetooth to an external device (200) automatically when connected. When the ECG removal mode is activated, the automatic data transfer to the device (200) is disabled. A convenient form factor of the device (10), compactness and a high level of autonomy make it possible to ensure high availability of early diagnosis of cardiovascular diseases of users.

In FIG. 5 is a structural diagram of the device (10), as well as the principle of interaction of components during its operation. The signal from the electrodes (105) - (107) built into the housing (100) is fed to the input of the first analog interface (109), which can be performed, for example, on the AD8233 chip. The signal received from the patient cable through the connector (108) is fed to the input of the second analog interface (110), which can also be performed on the AD8233 chip.

The amplified signal using the corresponding analog interface (109) or (110) is fed to a two-channel analog-to-digital converter (104), for example, made on the ADAU1361 chip. The converted ADC (104) signal in digital form via the SPI interface is transmitted to the microcontroller (103). The signal source (built-in electrodes / lead cable) is selected using the microcontroller (103) as the control signal.

ECG data in digital form is recorded in the internal non-volatile means of storing data of the device (102). The microcontroller (103) allows you to transfer data to the storage medium (102) and to an external device, for example, a smartphone (200) via a wireless Bluetooth interface using a wireless module (112). The ECG data shown on the display (101) is filtered by an IIR / FIR filter to effectively remove noise and isoline.

The microcontroller (103) contains a loader program that allows you to update the main program of the device (100) via a wireless interface using an external download. When connecting the lead cable to the connector (108) on the device case (110), the device (10) is controlled by commands from an external device (200). As an external device (200), a smartphone, tablet, or personal computer can be used.

The frequency band of the amplitude-frequency characteristics for both channels of the analog interfaces (109) - (110) is 0.67-320Hz, with allowable amplitude deviations of 0.67Hz-1Hz +/- 10%, 1Hz -320Hz - +/- 1%. Signal sampling frequency 1000Hz.

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

Claims (15)

1. A wearable electronic device for receiving electrocardiographic (ECG) measurements, comprising a housing mounted on the wrist of the user, in which are installed: a display for displaying information; a microcontroller that controls the electronic device; ADC, which provides digital conversion of signals from electrodes; data storage means configured to store ECG data; a wireless communication module for transmitting data from the storage medium to an external computing device; the first electrode, combined with a capacitive button, providing activation of the ECG removal function and device control; the second and third electrodes located on the back of the housing and together with the first electrode provide ECG registration; battery; connector for connecting external electrodes for registration of ECG. 2. The device according to claim 1, characterized in that it is made in the form of a bracelet or watch. 3. The device according to claim 1, characterized in that the display is a touch screen. 4. The device according to claim 1, characterized in that the wireless communication module is a Bluetooth or Wi-Fi module. 5. The device according to claim 1, characterized in that the type of interface of the connector for connecting external electrodes is a micro-USB, USB-C or Lightning type of connector. 6. The device according to claim 5, characterized in that the connector additionally provides charging of the device’s battery.

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