RU2445916C2 - Method of prehospital examination of functional state of individual and automatic system for functional state of user (versions) - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely systems and diagnostic techniques for functional body state. Method involves biological signal reading by at least one sensor, recording, automatic analysis, including calculation of the variability of cardiac rhythm and index of activity of regulatory systems, extraction of the parameters specifying a risk of cardiac disturbances, cardiac arrest emergency, and also diagnosed cardiac rhythm disorder, and functional state data display. Additionally, personal information on current patient's state as of the time of biological signal reading is recorded; probable reasons of the functional state variation in accordance with pre-recorded history, current health and parameters exceeding the threshold values of normal ECG or parameters of previous ECGs are listed; the functional state assessment is expressed in the form to be presented to an individual being examined. A system for implementing the method comprises biological signal sensors, a recorder and an analysis unit for recorded biological signals. Besides, it is provided with a user terminal to input health data, a unit for automatic listing of probable reasons of the functional state variation and functional state assessment to be presented to an individual, connected with the analysis unit for recorded biological signals. A second version of the system is characterised by the fact that it comprises the user terminal to input health data from the biological signal recorder or current health values.

EFFECT: use of the invention provides more reliable functional state assessment.

6 cl, 2 dwg

Description

Technical field

The invention relates to medicine, in particular to methods and systems, including taking measurements to diagnose the functional state of the human body and / or using the results of such measurements by electroencephalography, electrocardiography, rheography, etc.

State of the art

The prior art method for assessing the functional state of a person, including the removal of biological signals of a person through at least one sensor, registration of biological signals, automatic analysis of registered biological signals and display information about the functional state of a person (patent EP 1629770, published 03.2006). The disadvantage of this solution is the low reliability of the assessment of the functional state, since it usually analyzes the result of a single registration of human biological signals without taking into account other factors (history, comparative analysis with previous similar studies, situational context for recording biosignals, i.e. information about the current state and well-being of a person, medications taken by him, etc.). In addition, the method known from patent EP 1629770 characterizes the lack of clarity of presentation of information for an unprepared person, since the information is provided in tabular form indicating the presence of various types of deviations, and either special knowledge or an expert’s explanation is required to evaluate one’s functional state.

The prior art automatic system for assessing the functional state of the user, including at least one biological signal sensor, a biological signal recorder and a unit for analyzing registered signals (patent EP 1629770, published 01.03.2006). The disadvantage of this system is its low efficiency, due to both the low reliability of the assessment results carried out only on the basis of the registered biosignals without taking into account their dynamics and the situational context of the biosignals registration, and the need for a specialist to obtain an assessment of the functional state in a form accessible to a person's perception, not having special medical training.

Disclosure of inventions

The technical result to which the claimed invention is directed is to increase the reliability of the result of evaluating a person’s functional state, as well as to expand the arsenal of automatic systems for evaluating a person’s functional state. At the same time, the results of assessing the functional state are presented in a form that is accessible for perception by a person who does not have special medical training, due to the fact that the results of the assessment are presented in the form of formulations that do not require medical education to understand. In addition, the claimed method and automatic evaluation system can reduce the duration of the evaluation for one patient (up to several milliseconds or less) and, thereby, create the possibility of a pre-medical assessment of the functional state of a large number of people at the same time.

The indicated technical results are achieved in a method of pre-medical assessment of a person’s functional state, including the acquisition of biological signals using at least one biosignal sensor (electrocardiogram, electroencephalogram, rheogram, plethysmogram), registration of biological signals, automatic analysis of recorded biological signals, including calculation of rhythm variability parameters heart and an indicator of the activity of regulatory systems, the allocation of parameters indicating a risk to a cardiologist disturbances, sudden cardiac arrest, as well as revealed cardiac arrhythmias, and displaying information about the functional state, while registering personal data on the current state of health of the examined person at the time of taking biological signals, they automatically generate lists of probable causes that affect the functional state, corresponding to the preliminary recorded medical history data, current state of health and data on the parameters of biosignals that go beyond the threshold values of the biological norm Whether the settings previously obtained biosignals, and opting for posts subject is the wording that expresses the assessment of its functional state.

After the formation of lists of probable causes affecting the functional state, coincidence of lists of probable causes affecting the functional state can be revealed by data on parameters that go beyond the threshold values of the biological norm of biosignals, anamnesis data, and data on current state of health. And the choice to communicate to the subject the wording expressing an assessment of his functional state may proceed from the identified causes of the change in the functional state.

Automatic interpretation of data can be performed according to the following algorithm:

a) form a list of factors of a possible change in the functional state corresponding to data on parameters that go beyond the threshold values of the parameters of the biological norm of biosignals (electrocardiograms, electroencephalograms, rheograms, plethysmograms);

b) reveal the correspondence of the list of factors of a possible change in the functional state corresponding to data on parameters that go beyond the threshold values of the biological norm of biosignals, anamnesis data, and questionnaire data on current state of health;

c) assess the likelihood of a threat to health, life and the level of adaptive capabilities of a person;

d) based on the values of the probability of a threat to health, life and the level of adaptive capabilities for communicating to the user, a wording is selected that expresses an assessment of its functional state.

These technical results are achieved in an automatic system for assessing the functional state of a user, which includes at least one sensor of biological signals (electrocardiograms, electroencephalograms, rheograms, plethysmograms), a registrar and an analysis unit for registered signals, a user terminal for entering data on his well-being, and executed with the possibility of remote access through the user terminal by the automatic generation of lists of probable reasons for changing the functional user states corresponding to pre-recorded history data, current health data and data on parameters that go beyond the threshold values of the biological norm of biosignals (normal electrocardiogram, electroencephalograms, rheograms, plethysmograms) or parameter values of previous similar biosignals (electrocardiograms, electroencephalograms, rheogrammograms, rheogramm, rheogramm , and choosing to communicate to the user a wording expressing an assessment of his functional state, connected with a unit for analyzing registered signals, configured to remotely access information from a biological signal recorder.

The block for automatically generating lists of probable reasons for a change in a user's functional state and for choosing a message to a user that expresses an assessment of his functional state can be made with the possibility of registering a user, storing the results of previous user requests and comparing them with newly obtained results.

These technical results are also achieved in the automatic system for assessing the functional state of the user, which is equipped with a user terminal configured to enter information from the biosignal recorder (electrocardiogram, electroencephalogram, rheogram, plethysmogram) or the registered biosignal analysis unit and the user about his current state of health, and the automatic block compilation of lists of probable reasons for changing the functional state of the user and the choice for bscheniya user wording expressing the evaluation of its functional state, adapted to the user through the remote access terminal.

The block for automatically generating lists of probable reasons for changing the functional state of the user and choosing a message for the user to express the assessment of their functional state can be made with the possibility of registering users, storing the results of previous user requests and comparing them with the newly obtained results.

The block for automatically generating lists of probable reasons for changing the functional state of the user and choosing a message for the user to express the assessment of their functional state can be performed with the possibility of analyzing the recorded biosignals.

Brief Description of the Drawings

Figure 1 shows a diagram of an automatic system for assessing the functional state of the user.

Figure 2 presents the algorithm for assessing the functional state of a person.

Best use cases of inventions

The implementation of the method can be considered on the example of assessing the functional state of a human user of the system, who is at the same time the subject being examined, according to the results of the analysis of the biosignal widely used in medicine - an electrocardiogram (ECG). First, the user is registered by entering him into the database, during which information about his medical history is entered. Then the user enters information about the current state of his health, such as the presence of fever, chills, pain, information about the courses of treatment, medications taken, stress, etc., and his electrocardiograph records his ECG.

The method can be used both at the time a person develops a state of discomfort, and according to a predetermined schedule. One of the possible implementations of the method is to use an automatic system for assessing the functional state of the user, including, as shown in Fig. 1, sensors (1) of the biological signals of the examined person, a recorder (2) of biological signals, a terminal (3) for inputting primary data about the examined person to the system, terminal (4) for answers to the questionnaire by the examined person about their current state of health, block (5 _A ) for analyzing the registered signals and block (5 _B ) for automatic user registration and interpretation of the result data x analysis of biological signals, anamnesis data and data on the current state of health of the examined person, device (6) for transmitting data from registrars (2) and terminals (3) and (4) to blocks (5 _A ) and (5 _B ) through the medium ( 7) data transmission (PSTN, Internet, cable or wireless channels). If necessary, the system can be additionally equipped with terminals (8) of consultants for remote support of users of the system.

Such devices of the system as biological signal recorders (2), terminals (3) for entering primary data about the person being examined into the system, terminals (4) for answering the questionnaire about the current state of health of the persons being examined, and devices (6) for transmitting data from the registrars (2) and terminals (3) and (4) in blocks (5 _A ) and (5 _B ) can be structurally designed as a single device with integrated functionality.

The operation of an automatic system for assessing a person’s functional state can be considered using the example of evaluating a person’s functional state based on the results of an electrocardiogram (ECG), for example, see Semenov Yu.N., Baevsky P.M. Hardware-software complex "Varicard" for the analysis of heart rate variability and prospects for its development. Computer electrocardiography at the turn of the century. International Symposium April 27-30, 1999 - M., 1999

When using the automatic system for the first time, the user enters primary medical information (history) about himself through the terminal (3) and sends it to the unit (5 _B ) through the device (6) via communication channels (7). Anamnesis data is sent to the unit (5 _B ), where it is stored in the database under a specific user identification number of the system. Upon further use of the system, the user of the system enters his identification number and his anamnesis data is automatically extracted from the block database (5 _B ) for further analysis.

After that, the user - the person being examined fixes one or several sensors of biological ECG signals (1) on the body, connected to the biological signals recorder (2), which within a specified time reads biological signals from sensors (1) and through the device (6) through channels Communication (7) sends them to the block analysis of registered signals (5 _A ).

Then, the examined person using the terminal (4) enters answers to the questionnaire about his current state of health and subjective complaints, such as fever, chills, pain, etc., information about the courses of treatment, medications taken, stress, etc. ., and through the device (6) through the communication channels (7) sends responses to the block (5 _B ).

If the quality of the registered signal is inappropriate, a message is sent to the user of the system to refuse analysis. If the signal is suitable for analysis, the parameters of the heart rate variability, the contour analysis of the electrocardiogram and the detection of heart rhythm disturbances by ECG are calculated, for example, see Bayevsky P.M., Ivanov G.G. “Heart Rate Variability: Theoretical Aspects and Possibilities of Clinical Application”, Moscow, 2000, and also Berseneva A.P. "Assessment of the adaptive capabilities of the body and the risk of developing diseases", Moscow, 1997

Based on the results of calculating the heart rate variability parameters, the regulatory system activity index (PARS) is automatically calculated, which is sent to the block (5 _B ).

Based on the results of calculating the parameters of the heart rhythm variability and the contour analysis of the electrocardiogram, parameters are automatically selected that indicate the risk of cardiological disorders, sudden cardiac arrest, which are also sent to the unit for assessing the functional state. In addition, the results of detected cardiac arrhythmias by ECG are sent to block (5 _B ).

In the block (5 _B ) of automatic registration and interpretation of data on the results of the analysis of biological ECG signals, anamnesis data and data on the user's current state of health, the following operations are performed:

a) form a list of probable reasons for exceeding the threshold values of the parameters of the electrocardiogram according to the anamnesis and data on the current state;

b) based on the list of probable reasons for the decrease (deterioration) of the functional state, a wording is selected for communication to the user, expressing an assessment of its functional state.

In more detail, the algorithm for assessing the functional state of a person is presented in figure 2.

Claims (6)

1. A method of pre-medical assessment of a person’s functional state, including the acquisition of biological signals by means of at least one biological signal sensor, registration of biological signals, automatic analysis of registered biological signals, including calculation of heart rate variability parameters and activity index of regulatory systems, selection of parameters indicating for the risk of cardiological disorders, sudden cardiac arrest, as well as detected cardiac arrhythmias, and the display of info functional state, characterized in that it additionally records personal data on the current state of health of the person being examined at the time of taking the biological signals, automatically lists the probable causes of the change in the functional state corresponding to pre-registered history data, current state of health and data on parameters that go beyond threshold values of a normal electrocardiogram or parameter values of previous electrocardiograms and are selected for reporting Followed face wording expressing the evaluation of its functional state. 2. The method according to claim 1, characterized in that after the formation of lists of probable causes of changes in the functional state, matches of the lists of probable causes of changes in the functional state are revealed according to the data on parameters that go beyond the threshold values of the normal electrocardiogram, history and current health, and the wording to communicate to the subject, expressing an assessment of his functional state, choose based on the reasons for the change in functional state. 3. A system for automatically evaluating the functional state of a user, including biosignal sensors, of which at least one is an electrocardiogram sensor, a recorder and an analysis unit for registered biosignals, characterized in that it is additionally equipped
a user terminal for inputting data on his well-being and configured to remotely access via a user terminal a unit for automatically generating lists of probable reasons for changing a user's functional state, and for selecting a message to a user that expresses an assessment of his functional state connected to a registered bio-signal analysis unit, made with remote access to receive information from the biosignal recorder. 4. The system according to claim 3, characterized in that the unit for automatically generating lists of probable reasons for changing the functional state of the user and choosing to inform the user of a wording expressing an assessment of his functional state is configured to register the user, store the results of previous user requests and compare them with newly obtained results. 5. A system for automatically evaluating the functional state of a user, characterized in that it includes a user terminal configured to enter information:
- data from the biosignal recorder or
- user data about his current state of health,
and a unit for automatically generating lists of probable reasons for changing the functional state of the user and selecting a message to the user for expressing an assessment of their functional state, made with the possibility of remote access through the user terminal. 6. The system according to claim 5, characterized in that the unit for automatically generating lists of probable reasons for changing the functional state of the user and choosing to inform the user of the wording expressing an assessment of his functional state is configured to register the user, store the results of previous user requests and compare them with newly obtained results.

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