Device of mobile communication with possibility of cardiomonitoring

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and is intended for creation of personal medical devices for remote monitoring of patient's heart activity in outpatient conditions - cardiomonitors. Device of mobile communication includes, as minimum, three ECG electrodes, inlet-outlet unit, controller, made with possibility of registration, processing and transmission of information, energy-independent memory, keypad, display, loudspeaker and modem. ECG electrodes are connected with inlet of inlet-outlet unit and are integrated into device case. Device also contains generator and two additional electrodes, which are switched to generator outlet and are intergrated into device case. Controller is made with possibility of rheogram signal registration and analysis of information for self-diagnostics of heart disease aggravation.

EFFECT: application of invention will make it possible to increase self-descriptiveness and reliability of diagnostics due to change of ECG electrode configuration and provision of device with function of rheogram measurement.

3 cl, 2 dwg

 

The invention relates to medicine, namely to measurements for diagnostic purposes in cardiography, and can be used for ambulatory cardiac monitoring of human activity, self-diagnosis of exacerbation of heart disease and further data in the center of cardiotachometer for detailed analysis.

Known cardiac monitoring real-time [1], consisting of a block of removal ECG containing three electrodes, amplifier and filter, mobile computer, multi-monitor, keyboard and detector, and the computer has a software through which on the basis of continuous extraction and analysis of the ST segment of the ECG develop recommendations for the patient and signals to the medical staff. The disadvantage of this device is constructive complexity and impossibility to use as a simple wearable monitoring heart activity of the person and the self-diagnosis of acute heart disease.

Known non-invasive method for the diagnosis of acute coronary disease and multi-channel electrocardiograph [2]containing block removal of the ECG, including a matrix of electrodes, amplifiers, multiplexer, programmable gain amplifier, ADC, microcontroller, removable memory card, analyzers and display of cardiac rhythm and ST segment, which is provided to meet the overall program of the microcontroller, with values of samples ST-segment across all channels continuously displayed on the display screen in the three-dimensional image. The disadvantage of this device is constructive complexity and impossibility to use as a simple wearable monitoring heart activity of the person and the self-diagnosis of acute heart disease.

Known wearable ECG monitoring device [3], which contains a microprocessor unit, multi-unit removing the ECG, a multiplexer, an ADC, a removable memory card, keyboard and display unit and alarm, and the display unit and the alarm is made with possibility of simultaneous indexing both current and previous detained at a specified time averaged values of ECG parameters, and the software unit of the microprocessor is configured to provide calculation and storage of these values and with the ability to selectively record them on a removable memory card in accordance with the program specified from the keyboard.

The disadvantage of this device is constructive complexity and inconvenience of use due to the need of using the patient cable.

A common shortcoming of earlier devices is the inability to transfer information to the Central cardiac monitoring.

Known cardiovagal [4], which registers not is how many ECG lead further data transmission in the center of cardiotachometer through the audio channel of any phone. A disadvantage of the known device is the lack of funds operational analysis of information (display, indicators dangerous condition and the like), as well as a small information content of the measurements of a limited number of ECG leads.

The closest in technical essence is a mobile communication device with cardiac monitoring [5] is a prototype. The entity known of the invention lies in the fact that the standard device nodes for mobile communications (UMC) perform the functions of the famous sites of the cardiac monitor, which achieved a simplification of the circuit of the cardiac monitor and the extension of its functionality:

- block I / o UMC performs the functions of the biopotential amplifier and analog-to-digital Converter cardiac monitor;

modem UMC performs the function of the communication interface cardiac monitor;

display and speaker of the TMC function block display and alarm cardiac monitor.

The advantages of the known device consists in the following:

the ECG electrodes are made in the form of parts of the device, made of metal or conductive plastic, which eliminates the necessity of using the patient cable and thereby increases the ease of use and reduces the level induced on the input circuit of device interference;

- the availability of information transmission in the center of cardiotachometer

The disadvantages of the known device consists in the following:

- shows the configuration of the ECG electrodes allows you to register only one standard ECG lead - lead I;

small informative about cardiac activity due to the fact that at one point in time by measuring only one lead;

- the absence of the program controller function analysis information for self-diagnosis of acute heart disease.

It is known that the simultaneous recording of ECG and rogramme significantly increases informative about the functioning of the heart and increases the reliability of the diagnosis of heart disease [6].

The objective of the invention is to increase the information content and reliability of diagnostics of mobile devices with cardiac monitoring due to configuration changes of ECG electrodes, additions of device functions measurement function rogramme and supplementation program device program analysis of recorded data for self-diagnosis of acute heart disease.

This object is achieved in that the mobile communication device with cardiac monitoring, including at least three electrodes ECG, block I / o, the controller is made with the possibility of recording, processing and transmitting information, energenesis is to assist the memory, the keyboard, display, speaker and modem, and the ECG electrodes are connected to the input of block I / o and integrated in the device according to the claimed technical solution, the device further comprises a generator, two additional electrode, the controller is configured to signal rogramme and analysis of information for self-diagnosis of exacerbation of heart disease, and the additional electrodes connected to the generator output and integrated into the device.

Two ECG electrode can be placed on the side walls, and a third electrode ECG can be placed on the bottom and/or top wall of the housing of the device.

The invention is illustrated by a functional diagram of the device shown in figure 1.

The device includes: ECG electrodes El, El, El, additional electrodes El and El, generator 1, block I / o 2, a controller 3, a nonvolatile memory 4, a keyboard 5, a display 6, a speaker 7, a modem 8, case 9.

In the nonvolatile memory 4 stores a program operation of the device 10, including program registration, processing, transmission of ECG signals and rogramme, as well as the program analysis information for self-diagnosis of acute heart disease. Program operation the device 10 is created in a programming language conforming to a type of the TMC (the example for cell phones it may be the JAVA language [7]).

The registration channel ECG electrodes formed Al, Al, Al connected to the input of block I / o 2, the output of which is connected to the controller 3. The ECG signal is allocated from a wide range of interference, which includes the signal generator 1, using the registration of ECG signal performed by the controller 3.

Channel registration rogramme made by tetrapolar scheme and includes a generator 1 connected to the additional electrodes El and El, ECG electrodes El and El connected to the input of block I / o 2, the output of which is connected to the controller 3. The output frequency of the generator 1 varies with the voltage at the output of block I / o 2 under the control of the controller 3 and is determined depending on the Constitution of the patient and the depth of the examined body. The selection of the low-frequency envelope of the high frequency signal carrying information about the change of blood flow signal rogramme that occurs with program reception signal rogramme performed by the controller 3.

Non-volatile memory 4, in addition to storing programs functioning of the device 10, is used to store measurement results. The display 6 displays the recorded information in graphical form, and also for auxiliary inform the tion (current room assignment and so on), including options analysis information (signal a dangerous condition, pulse rate and so on). Speaker 7 is used for sounds, human sound about hazardous condition. The modem 8 is used for transmission of measured and accumulated information center cardiotachometer.

As conventionally shown in black in figure 1, a pair of electrodes El, El can be placed in parallel on one of the side walls, the ECG electrode El on the other side wall, a pair of Al, Al in parallel on the lower (or upper) side of the housing 9.

The device operates as follows.

Before starting the measurement by selecting from the menu using the keyboard 5 starts program operation 10. The process of recording and analysis of ECG and rogramme is displayed on the display 6.

For dimension I of the standard ECG leads (L-R) and rogramme breast man takes the device in the right hand (figure 2), the palm and fingers tightly covered electrodes El, El, El (the side walls of the housing 9), and touches the electrodes El, El (the bottom wall of the housing 9) to the point of standard lead L [8, P.16] - for example, to the palm of his left hand.

To measure II standard ECG leads (F-R) and the corresponding rogramme man also takes the device in the right hand like lead I and touches the electrodes El, Al to the point of standard lead F [8, P.16 - for example, to the ankle of the left leg.

To measure III standard ECG leads (F - L) and the corresponding rogramme man takes the device in the left hand so that the palm and fingers tightly covered electrodes El, El, El, and touches the electrodes El, Al to the point of standard lead F [8, P.16] - for example, to the ankle of the left leg.

The electrode All in all considered cases is zero (N) electrode.

In addition to the standard bipolar leads I, II, III, can be measured by standard bipolar leads CR1 - CR6 [8, P.19]. This man takes the device in the right hand like lead I and touches the electrodes El, Al turn to the points of the standard chest leads of C1-C6. Similarly, you can measure any other non-standard lead and conduct cardiac topography.

Action potential occurring at the electrodes ECG Al and Al during measurement, is supplied to the block I / o 2 where it is converted to digital form and processed by the controller 3 according to the program operation 10.

High-frequency signal generated by the generator 1 is applied to the additional electrode El and El, ECG electrodes El and El creates a voltage drop, modulated by the oscillations of the conductivity of the blood - signal rogramme. This signal is applied to the block I / o 2 where it is converted into a digital form which is processed by the controller 3 according to the program operation 10.

During the measurement, the controller 3 performs the selection of ECG signals and rogramme, writing data in the nonvolatile memory 4, provides ECG display and rogramme in graphical form on the display 6, and analyzes information to diagnose dangerous to human health conditions (acute heart disease, arrhythmias, and so on). When this condition is detected, the person is notified by a sound signal through the speaker 7 and the display 6.

The recorded data is in a file stored in the nonvolatile memory 4. In the future, people can share the file with modem 8 in a known manner, the data corresponding to the type of mobile communication device (e.g., GSM Fax, GPRS, EDGE, CDMA, TETRA, etc. in the center of cardiotachometer for detailed analysis.

The industrial feasibility of the invention is substantiated by the fact that it used to be known standard nodes of the mobile communication device for its intended function.

The positive effect in the present invention is based on the totality of the structural, schematic and software solutions that enable mobile communication device to register the ECG and rogramme in the standard ECG leads, operational analysis information for self-diagnosis amostra the Oia heart disease and data center cardiotachometer.

Sources of information

1. M.W. et al. The Cardiac signal is a real time monitor and method of analysis. / Patent US 4,679,144, IPC G06F 15/42, G06G 7/60, A61B 5/04, publ. 07.07. 1987.

2. G.J.Dempsey et al. Non-invasive multi-electrocardiografic apparatus and method of assessing acute ischaemic damage. / Patent US 5,419,337, IPC A61B 5/0452, publ. 30.05.1995.

3. Volobuev PU Wearable ECG monitoring device. / Patent RU 2266041 C2, IPC AV 5/0452, AV 5/0404, publ. 20.12.2005.

4. Portable electrocardiograph "Cargojet". http://telmed.ru/ index.php?id=2.

5. Gal Markel. Mobile communication device and other devices with cardiovascular monitoring capability. / Application US 2007/0021677 A1, IPC AB 5/04, publ. 25.01.2007.

6. Shershnev V.G. and other Clinical rheography. Ed. Vcherashnemu. - Kiev, Health, 1977. - P.3-7.

7. Writing software for phone http://www.mobilab.ru/articles/88/.

8. Starshow A.M., Smirnov I.V. ECG for professionals. The methodology and technique of ECG examination. - M: Informative book plus, 2002. - pp.96.

1. The mobile communication device with cardiac monitoring, including at least three electrodes ECG, block I / o, the controller is made with the possibility of recording, processing and transmission of information, non-volatile memory, keyboard, display, speaker and modem, and the ECG electrodes are connected to the input of block I / o and integrated in the device, characterized in that the device further comprises a generator, two additional electrode, the controller is implemented with the option register signal rogramme and analysis of information for self-diagnosis of exacerbation of heart disease, moreover, additional electrodes connected to the generator output and integrated into the device.

2. The device according to claim 1, characterized in that the two ECG electrode placed on the side walls, and a third ECG electrode placed on the lower and/or upper wall of the housing of the device.

3. The device according to claim 1, characterized in that the additional electrodes placed on the walls of the device next to the ECG electrodes.



 

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2 cl, 3 dwg

FIELD: medicine; cardiology.

SUBSTANCE: device for registering electric cardiosignals has amplifier, analog-to-digital converter with multiplexer and arithmetic unit as well as increment code analyzer, switch unit, digital modem, increment code number counter, memory unit, control unit, heart electro-motive force vector projection forming unit, heart electro-motive force vector value determination unit and heart electro-motive force vector direction determination unit. Device has widened functional capabilities of electric cartographic testing by means of finding spatial disposition of electric axis of heart. Projection of heart vector to frontal plane is found from standard abstracts from extremities and to horizontal plane - from chest abstracts. Projection of vector of heart to sagittal plane is determined from projections of vector of heart to frontal and horizontal planes. Direction and value of projection of heart electro-motive force is determined from known projections in three-dimensional space.

EFFECT: improved efficiency.

4 cl, 7 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices of long-term ECG monitoring. Electrode device for wearable ECG-monitor contains system of on-skin electrodes and monitoring unit, electrically connected to each other and placed on pendant fixed on the body. System of on-skin electrodes consists of two matrices of pin electrodes, whose free butt end parts have salient spherical surface and are installed on belt part of pendant, tightly filling the body with possibility of providing "dry" galvanic contact with areas of chest anterior surface in conditions of patient's free movements. Each matrix consists of two groups, pin electrodes in each of them are galvanically connected to each other. One of the groups, which has larger area, is intended for ECG signal registration, the other, with smaller area, for connection to means of cophasal noise suppression. Butt end fixing parts of electrode pins are fixed on flexible dielectric padding, connected with pendant, made from elastic textile material.

EFFECT: invention makes it possible to increase reliability of galvanic contact between patient's body and system of "dry" electrodes and improve ratio signal/noise of ECG signal in process of long-term application.

5 cl, 4 dwg

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