RU2698441C2 - Device for non-contact recording of patient's biometric parameters in lying - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to a method and device for non-contact recording of vital signs of a patient in a continuous mode in a lying down state. Device includes housing, controller and sensor. Housing is made in the form of a plastic mold and is placed near the patient's bed or is attached to it. Directly in the housing there is a controller, which includes two amplifiers for expansion of the dynamic range of the device in case of mechanical effects on the sensor and key. Also in the housing there is a signal recording device configured to connect to the cloud service when the power is switched on using a secure SSL connection and at the level of application protocol of data transfer in continuous mode to transmit to cloud application indicators of vital activity, such as pulse rate per minute, respiratory rate per minute, index of hemodynamic activity, index of motor activity, intervalogram. Sensor of the device is represented by a piezoelectric sensor of the EmfitR-Series family, is placed in a jacket and is connected to the amplifier by a coaxial cable. Cover is fixed in patient's bed under mattress in area of blades location. When the device is switched on, pulse rate per minute, respiratory rate per minute, hemodynamic activity index, motor activity index, intervalogram are measured. Measured data is obtained through a cloud service and the obtained vital signs are stored for a given amount of time. Patterns of vital signs are registered. Diagnosing the patient's health changes as a result of the therapy and correcting the therapeutic course.

EFFECT: higher accuracy of measuring human vital activity indicators up to 97 %.

5 cl, 3 dwg, 2 tbl

Description

The present invention relates to medical equipment, namely, a new hardware-software complex for contactless recording of the main biometric parameters of a patient in a continuous state while lying down.

The present invention can be used to solve the following complex tasks:

1. Continuous monitoring of health status. To date, two segments of consumers need health monitoring devices: healthy people who take great care of their health (health-motivated) and patients who require constant attention - chronic patients, the elderly, people with disabilities, children, etc. Contactless device registration of biometric indicators of a patient in a lying state (hereinafter referred to as the Device) is focused on the second group of people, namely the following types of users:

- Infants up to 1 year old, at risk for sudden infant death syndrome;

- Children aged 1 to 4 years;

- Elderly over the age of 60;

- Disabled, bedridden patients;

- People suffering from sleep disorders (apnea);

- People with heart or cerebral diseases;

- People who have undergone various heart operations, heart attacks, strokes;

- People, by the nature of their activity or lifestyle associated with constant physical or nervous stress.

2. Control of chronic diseases. Chronic patients use the device, while it is built into the furniture (bed). Patients spend a lot of time on the bed while lying down; therefore, the device interacts with the patient for a long time. As a result of recording and tracking negative changes in the state of health and transferring this information to the doctor’s attention level, the patient receives proactive manipulations, that is, manipulations that were performed with him until some irreversible deterioration: heart attack, stroke, unacceptable increase in blood pressure, etc. .d. Proactive manipulations are the main benefits a chronic patient receives from using the Device. A solution that provides control of chronic diseases can be implemented as a mobile application integrated with the Device.

3. Management of treatment courses. A patient is prescribed a course of treatment, accordingly, this course of treatment must be clearly observed and, if necessary, adjusted. This is especially important when the time and order of taking medications or carrying out manipulations greatly affect the effectiveness of treatment. A solution providing management of treatment courses can be implemented as a mobile application integrated with the Device. At the same time, the doctor using the mobile application has the opportunity to make adjustments to the course of treatment depending on how the patient responds to the therapy, based on feedback - the nature of changes in his health indicators. Reducing the duration of treatment, reducing the cost of treatment, individual selection of medicines are the main benefits received by patients from using the device.

Today, devices for non-contact monitoring of respiration, heartbeat and motor activity are a sought after product. The ability to remotely detect and contactlessly receive information about the functional state of a person behind optically opaque obstacles is especially important for detecting people caught in rubble as a result of earthquakes, man-made disasters and avalanches. Another equally important area of application of the method of radar sensing of people is medicine. Potential applications of non-contact monitoring in medicine, determined by restrictions on the mobility of the object of study: somnology, resuscitation, functional diagnostics, non-contact assessment of the psychoemotional state of a person, assessment of the motor activity of small laboratory animals during zoopsychological experiments and when testing new drugs. R&D is actively being carried out abroad to develop new technologies in the field of non-contact monitoring of the basic parameters of life, whereas in Russia this industry is represented mainly by experimental developments of individual research and production centers.

Thus, a prior art device for remote non-contact monitoring of vital signs of a living organism is known, which comprises: at least one measuring unit, at least one control and information processing unit and at least one interface unit connected in series. The measuring unit comprises at least one radio transmitting module, and at least one radio receiving module. The control and information processing unit is configured to generate control pulses for each of the radio transmitting and receiving modules, arbitrarily delayed relative to each other in time, and is additionally configured to generate control pulses for each of the transmitting and receiving modules of arbitrary duration relative to each other. Each of the radio transmitting modules and / or each of the radio receiving modules included in the measuring unit is made independent of one another. [RF patent No. 2533683, LLC NanoPulse (RU), 11.20.2014].

Also known is a means for non-contact monitoring of a patient’s breathing, using a method for detecting changes from exhalation to inspiration of a patient or vice versa, comprising the steps of emitting an electromagnetic signal towards the patient and receiving a signal reflected from the patient, converting the reflected signal to obtain the first signal, phase shift of the reflected electromagnetic signal and converting it to receiving a second signal, detecting, using a computing unit, the simultaneous first transitions through zero at times derivative of the first signal and in the temporary derivative of the second signal, simultaneous second transitions through zero in the temporary derivative of the first signal and in the temporary derivative of the second signal, and simultaneous third transitions through zero in the temporary derivative of the first signal and in the temporary derivative of the second signal, determining the first and second vectors and calculating their scalar product as an indicator value for changing from expiration to inspiration of the patient or vice versa, comparing the indicator value with a predetermined threshold value and indications of a change from exhalation to inhalation of the patient, or vice versa, if the indicator value is less than the threshold value [RF Patent No. 2531119, KONINLIKE PHILIPS ELECTRONICS N.V. (NL), 10.20.2014].

Also known is a device for remote non-contact monitoring of vital signs, which contains a measuring module with a signal processing unit and a parent unit. The measuring module is made in the form of a transmitting channel and two independent receiving channels, the receiving antennas of which are spatially spaced relative to each other, respectively connected to a series-connected phase detector, band-pass filter and amplifier, the outputs of which are connected respectively to the inputs of the analog-to-digital converter. The transmitting channel is implemented in the form of series-connected short pulse shaper, microwave generator of probing signals and transmitting antenna, and the second inputs of phase detectors of the first and second receiving channels are connected respectively through directional couplers with the outputs of the microwave generator of probing signals of the transmitting channel. The signal processing unit is made on a microcontroller, the inputs and outputs of which are connected respectively to the output of the analog-to-digital converter and the input of the short-pulse generator, as well as the communication buses, respectively, with the inputs and outputs of the first radio transceiver, the first non-volatile memory, and charge control system. The output of the first radio transceiver is connected to the transceiver antenna of the first radio transceiver, and the corresponding inputs and outputs of the charge control system are connected respectively to a rechargeable battery and a USB port. The parent unit is implemented on a second radio transceiver, the inputs and outputs of which are connected respectively to the transceiver antenna of the second radio transceiver, a second non-volatile memory, a display with organic LEDs, buttons, a buzzer, a vibrator and a stabilizer with a small voltage drop, the corresponding input of which is connected to an electric battery [ RF patent No. 2462990, LLC NanoPuls (RU), 10.10.2012].

There are various Russian publications in the field of non-contact monitoring of the main parameters of human life:

- Anishchenko L.N. The dissertation “Development of technology and a hardware-software complex for bio-radar monitoring of physical activity, respiration and pulse”. MSTU named after N.E. Bauman, Moscow, 2009.

- Bioradiolocation / ed. A.S. Bugaeva S.I. Ivashova, I.Ya. Immoreeva. M.: Publishing House of MSTU. N.E. Bauman, 2010.

- Hassanin Hatem. Information system for monitoring the vital parameters of the state of the newborn // Fundamental Research. 2015.No 5-1.

- Proshin E.M., Putilin E.O. Non-contact monitoring of the patient’s breathing and heartbeat of complex chronomagnetotherapy based on ultrasound beats // Biomedical Radio Electronics No7, 2012.

- Savelyev Valery Viktorovich, Ivakhno Natalia Valerievna, Mizarev Alexey Mikhailovich. Hardware implementation of a complex of diagnostics of respiratory arrest during sleep // Izvestiya TulGU. Technical science. 2013.No 9-2.

- Bondar Sergey Sergeevich, Krivets Dmitry Vladimirovich. Mobile complex for comfortable monitoring of the state of seriously ill bedridden // Ivd. 2012.No 4-1.

- Morozov V.V., Seryapina Yu.V., Kravchenko Yu.L., Tarkov S.M., Bessmeltsev V.P., Katasonov D.N., Sluev V.A. TELEMEDICINE IN CARDIOLOGY: NEW PROSPECTS // Fundamental Research. 2013. No 7-3.

A number of foreign publications in the field of non-contact monitoring of the basic parameters of human life are also known.

A known method for assessing uncontrolled heart rate variability [Christoph Brtiser, Stefan Winter, Steffen Leonhardt, Unsupervised Heart Rate Variability Estimation from Ballistocardiograms, International Journal of Bioelectromagnetism, Vol. 15, No. 1, pp. 1-6, 2013].

A smart car seat for personalized monitoring of vital signs is described [The smart car seat: personalized monitoring of vitalsignsin automotive applications Marian Walter, Benjamin Eilebrecht, Tobias Wartzek, Steffen Leonhardt Pers Ubiquit Comput (2011) 15: 707-715].

There are several known sensors that determine a person’s state by heart rate [Improvement of Force-sensor-based Heart Rate Estimation Using Multi-channel Data Fusion Christoph Brtiser, Juha M. Kortelainen, Stefan Winter, Mirja Tenhunen, Juha Pa akka a and Steffen Leonhardt IEEE JOURNAL ON BIOMEDICAL HEALTH INFORMATICS, 2014].

Known film sensors for recording cardiorespiratory signals [Film-Type Sensor Materials PVDF and EMFi in Measurement of Cardiorespiratory Signals - A Review. Satu Rajala and Jukka Lekkala IEEE SENSORS JOURNAL, VOL. 12, NO. 3, MARCH 2012].

Known mattresses based on quasi-piezoelectric sensors for recording convulsions [Assessment of a quasi-piezoelectric mattress monitor as a detection system for generalized convulsions. Aditi P. Narechania, Irena I. Garic, Indranil Sen-Gupta, Micheal P. Macken, Elizabeth E. Gerard, Stephan U. Schuele. Epilepsy & Behavior 28 (2013) 172-176].

A known non-contact method for assessing cardiac activity by measuring heart rate using a web camera [A pop contact method for evaluating cardiac activity. Measuring pulse rate with a webcam. Lewandowska, M. Ruminski, J .; Kocejko, T .; Nowak, J. Computer Science and Information Systems (FedCSIS), 2011 Federated Conference on, 18-21 Sept. 2011].

Known for a wireless sensor sticker for remote monitoring of heart function, respiration, motor activity and falls [Wireless patch sensor for remote monitoring of heart rate, respiration, activity, and falls Chan, A.M. Selvaraj, N .; Ferdosi, N .; Narasimhan, R. Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE, 3-7 July 2013].

A patent for watches is known - a multifunctional monitor of vital parameters [Watch multifunctional life remote monitoring, CN 201719239, 01/26/2011].

Known Intelligent mobile personal health data monitoring system [Intelligent mobile personal health data monitoring system, CN 201733333, 02.02.2011]

A device for monitoring sleep parameters operating in GPRS networks is known [A GPRS wireless sleep monitor, CN 202078303, 12/21/2011]

A known device for remote monitoring of biometric indicators working in Bluetooth networks [Based on Bluetooth wireless remote monitoring unit, CN 202235361, 05/30/2012]

Known apparatus and method for passive patient monitoring [Apparatus and method for passive patient monitoring, CN 100592892, 03.03.2010]

The known system for remote monitoring of sleep disorders [A remote monitoring the sleep warning system, CN 201379566, 01/13/2010].

In addition to contactless solutions, the competitors of the Device are bedside monitors, pulse oximeters and home use cardiographs. Since in the future it is planned to distribute the Device to hospitals, boarding houses and other institutions of a socially significant nature, professional cardiographs and bedside monitors are also considered competitors (Table 1).

Abroad, in particular, Emfit is involved in the development of non-contact monitoring of vital signs. The company is engaged in the production of Emfit Movement Monitor, a device for monitoring human movements during sleep, and is actively conducting research in the field of monitoring respiration and heartbeat (Table 2).

The disadvantages of the considered similar technical solutions are:

- Lack of accuracy in registering human health indicators

- High price.

The authors of the present invention created a hardware-software complex for contactless registration of the main biometric parameters of a patient in a continuous state while lying down, the advantages of which are:

- High accuracy of recording human health indicators in the composition: pulse rate, respiratory rate, hemodynamic activity index, motor activity index, intervalogram;

- Low cost of components;

- Integration with cloud service;

- Non-contact monitoring of vital signs (ballistic cardiogram, respiration, pulse, movement);

- Insignificant influence of external factors on the accuracy and stability of measurements;

- The ability to continuously monitor vital signs and transmit information about their condition through various communication channels;

- Possibility of flexible settings.

The aim (task) of the present invention is the creation of a hardware-software complex for contactless registration of the main biometric parameters of a patient in a continuous state in a lying state, integrated with a cloud service.

This goal is achieved by creating a new device for contactless registration of biometric parameters of a patient in a lying position, including:

the case, made in the form of a plastic molded form and located in the immediate vicinity of the patient’s bed or attached to the bed with the help of fastening devices;

a controller located directly in the housing, including amplifier 1 (U1), amplifier 2 (U2), which provides additional signal amplification to expand the dynamic range of the device in case of significant mechanical influences on the sensor (C1) and key (K1), signal recording device (URS) , when powered on, it connects to the cloud service using a secure SSL connection and at the level of the application data transfer protocol in a continuous mode transfers the heart rate per minute, breathing rate to the cloud application I per minute, hemodynamic activity index, motor activity index, intervalogram;

a sensor (C1), represented by a piezoelectric sensor, for example, the EmfitR-Series family, located in a cover that is fixed to the bed under the patient’s mattress in the area where the shoulder blades are located, while the sensor (C1) is connected to the amplifier 1 (U1) coaxial cable.

More preferred is a device, characterized in that the signal recording device (URS) has a standard connector for supplying a supply voltage, for example, micro-USB.

More preferred is a device, characterized in that the signal recording device (URS) has an RJ45 connector for connecting to a router installed in the room using a wired connection, for example, Ethernet 100MV.

More preferred is a device characterized in that the sensor (C1) is a piezoelectric sensor, for example, the EmfitR-Series family with a sensitivity of 25 pC / N, a relative dielectric constant of 1.1, a capacity of 22 pF / cm ² , a measuring range of <300 N / cm ² , the thickness of the measuring element 0.4 mm, the length of the measuring element 800 mm

This goal is also achieved by the method of non-contact registration of biometric indicators of the patient in a lying state, according to which the sensor (C1) of the device according to claim 1 is fixed to the bed under the patient’s mattress in the area where the shoulder blades are located;

when you turn on the power of the device according to claim 1. measure the heart rate per minute, respiratory rate per minute, hemodynamic activity index, motor activity index, intervalogram;

receive measured data through a cloud service;

save the biometric indicators received from the device according to claim 1 for a predetermined amount of time;

register patterns of changes in observed biometric indicators;

diagnose complications due to ongoing therapy and adjust the course of treatment.

A cloud service is the ability to provide the user with a used set of configurable computing resources (for example, status monitoring, networks, servers, data storages, applications and / or services) that the user can quickly use for their tasks and release while minimizing the number of interactions with the provider services or own management efforts through network access.

Hemodynamics - the movement of blood through the vessels, resulting from the difference in hydrostatic pressure in different parts of the circulatory system (blood moves from the high pressure to the low). Depends on the resistance to blood flow in the walls of blood vessels and the viscosity of the blood itself.

The goal is also achieved by developing the following components of the Device:

- Sensor with analog signal amplifier. The sensor registers mechanical micro-vibrations, translating them into electrical vibrations.

- A controller that receives data in analog form from the sensor and performs preliminary filtering of the signal and its conversion from analog to digital.

- Signal processing software that performs the task of filtering and marking the signal in order to obtain discrete biometric indicators.

- Communication software that provides a reliable channel for transferring biometric data from the controller to the cloud service.

The task to which the claimed technical solution is directed is as follows:

- By converting the mechanical micro-vibrations emitted by the human body into an electrical signal with its subsequent processing, to obtain digital indicators of a person’s health at a particular point in time

- Transfer the numerical indicators of human health to the cloud service for their subsequent processing.

The solution to the problem of converting mechanical micro-vibrations emitted by the human body into an electrical signal, with its subsequent processing, is achieved by:

- Removing a biometric signal from a bedridden person by recording micro-vibrations of his body

- Converting a mechanical signal into an analog electrical signal for subsequent algorithmic processing

- Convert analog signal to digital signal

- Processing a digital signal in an algorithmic manner in order to obtain digital indicators of human health.

The solution to the problem of transferring numerical indicators of human health to the cloud service for their subsequent processing is achieved by:

- Establishment of a secure channel for exchanging information with the cloud service

- Transferring data to a cloud service over a secure channel

- If data transmission errors or a channel break occur, try to transfer data again or restore a secure data channel.

The invention is also illustrated by the drawings:

Fig. 1. The block diagram of the device for contactless registration of biometric indicators of the patient in a lying position, where

- C1 - sensor

- U1 - amplifier 1

- U2 - amplifier 2

- K1 - key

- URS - signal recording device.

Fig. 2. The scheme of the device for contactless registration of biometric indicators of the patient in a lying position.

The device operation procedure is shown in Fig. 2 and is as follows:

1. The Device Sensor is located under the patient’s mattress in the area where the shoulder blades are located

2. The device controller is located in the immediate vicinity of the patient’s bed, or is directly attached to the bed

3. The sensor is connected to the device controller using a low-voltage cable that is attached to the sensor

4. The device controller is connected to the outlet using a power cable

5. The controller connects to the router of the apartment or house using a wired (Ethernet 100 Mbps) or wireless (WI-FI, IEEE 802.11 b / g) connection

6. The router of the apartment or house provides end-to-end data transfer from the Controller to the cloud via a TCPL connection.

7. After establishing a secure connection between the Controller and the cloud service, the Device is ready for operation and goes into the monitoring mode of biometric indicators.

Fig. 3. Photo of the appearance of the device for contactless registration of biometric indicators of the patient in a lying position, on which the numbers indicate:

1. Sensor in a thick fabric case

2. Case

3. Coaxial cable connecting the sensor and the housing

4. Ethernet cable connecting the device to the router.

To measure the human motor activity that occurs during the work of the heart and breathing in the absence of direct electrical contact with the patient's body, registration of weak mechanical activity of a person is used. To register the latter, it is possible to use sensors operating on the effect of converting weak mechanical movements into an electrical signal. For this, the use of accelerometric sensors, for example, made using MEMS technology, is permissible. Strain gauges based on changes in the resistance of the measuring structure are also used.

Studies show that sensors based on the ferroelectric effect have the highest sensitivity. The sensor is a strip 5 cm wide and 80-90 cm long, consisting of two conductive surfaces, separated by a measuring structure made of a polymer material with a ferroelectric filler. The sensor is a capacitor of significant capacitance (up to 10-100 nF, depending on size) with a relatively high internal resistance (up to several giga Ohms).

With weak mechanical influences on this sensor due to the displacement of the ferroelectric grains relative to each other, a polarization voltage arises, which is the output voltage of the device.

This type of sensors is produced, for example, by the Finnish company EmFit (http://emfit.com), sensors of the EmfitR-Series family. The sensitivity of the sensors is 25 rC / N, the relative dielectric constant is 1.1, the capacitance is 22 pF / cm ² , the measuring range is <300 N / cm ² , and the thickness of the measuring element is 0.4 mm.

Studies have shown high sensitivity of these sensors, significantly superior in sensitivity to strain gauges and 5 or more times higher than the sensitivity of inexpensive accelerometric sensors.

As a result, when using these sensors, it is possible to relatively easily isolate the signals of the respiratory, cardiac and motor activity of a person in a lying position.

Despite the specified device parameters, these sensors have a certain drawback inherent in ferroelectric materials. Due to the induced polarization, the output signal of the sensor acquires a pronounced constant component, which leads to an overload of the input amplifier (U1) and a deterioration in the quality of the measurement of the useful signal.

The device of the Finnish manufacturer based on sensors EmfitR-Series has good parameters, but, as it turned out, is subject to electrostatic polarization, which is why the sensor is overloaded with crosstalk and ceases to give a useful signal. It was established experimentally that even a cell phone in standby mode, located next to the sensor, leads to its inoperability. This is due to the developed surface, which is essentially an effective receiving antenna due to the metallized elements. The sensor is a capacitor with a high-resistance polymer dielectric filled with ferroelectric particles. The capacitor plates are low resistance and made of metallized material. Accordingly, with a short-circuiting of the plates, the polarizing charge is neutralized. The magnitude of the polarizing charge is quite large and can reach up to kilovolts per centimeter, which leads to a complete overload of the amplifier, polarization of the ferroelectrics and loss of sensor properties for the conversion of mechanical vibrations to voltage. It should be noted a slight absolute value of this voltage (units of volts), but with its micron thickness, the electric field strengths are significant.

The disadvantage of the existing Baby Sleep Guard microwave device is the limitation of measuring the heart rate of a person, depending on the position of the person’s body other than lying on his back or on his stomach.

In the case of lying on your side, when exposed to microwave radiation on a person, losses are added, caused by the hand covering the more mobile part of the body - chest or back. In this case, the oscillations of the reflected signal are significantly attenuated, which leads to a decrease in the measurement accuracy. Improving the accuracy is achieved by increasing the power of the microwave signal source, and this is undesirable, because prolonged exposure of a person to powerful microwave radiation is unacceptable in view of possible pathologies.

The second way to increase the sensitivity of a microwave device is to use a highly sensitive receiver, which leads to a significant increase in the complexity and cost of the device.

In our case, the pulse wave propagates in the form of mechanical vibrations throughout the body with weak attenuation from the heart to the periphery, which allows its registration at any position of the body under the condition of mechanical contact of the body with the sensor, for example, through a mattress, blanket or sheet.

Unlike the Finnish device, the design of the Invention provides for a short-circuit of the key and, accordingly, the discharge of the accumulated charge of the sensor. The key closes when a significant constant component of the sensor signal occurs, illustrating that the amplifier overloaded at the input. After briefly closing the key, the sensor is ready for operation again.

To solve the problem of sensor overload, a second amplifier U2 and key K1 are introduced into the circuitry recommended by the manufacturer of the sensor - sensor C1 and amplifier U1, loaded on the device for recording the signal URS, -.

The proposed device operates as follows.

- In the absence of polarization of the ferroelectric material, the sensor signal C1 is amplified by the amplifier U1 and recorded in the usual way by the URS registration device. Amplifier U2 provides additional signal amplification to expand the dynamic range of the device in case of significant mechanical stresses on the mat.

- In the event of a significant constant signal component corresponding to a significant polarization of the ferroelectric and exceeding a predetermined threshold, the key K1 closes, discharging the capacitive structure and thereby eliminating the overload of the amplifier.

The technical result of the present invention is to increase accuracy to more than 97% of the measurement by the Device in a non-contact manner in a continuous mode of a number of biometric indicators of a person in a lying position. Namely, indicators are recorded: pulse rate per minute, respiratory rate per minute, hemodynamic activity index, motor activity index, intervalogram.

The device consists of specially designed components:

- An analog signal amplifier of a piezoelectric sensor having a high resolution.

- An analog filter that allows you to remove noise that exceeds the useful signal by three orders of magnitude.

- Digital to analog converter.

- A microprocessor module with firmware, containing software for signal preprocessing and signal transmission to the cloud system.

At the same time, the device is designed for continuous operation for 3 years (in accordance with the rules of operation of medical equipment), does not require special maintenance, is resistant to hygiene procedures without immersing the entire device or its parts in liquid.

The following examples illustrate but do not limit the invention.

Example 1. Description of the sequence of the device for monitoring the health status of sedentary people in a domestic environment.

The device can be used in everyday life to monitor the health status of sedentary people (patients).

At the same time, the following tasks are solved:

- Lack of human factor (“forgot to turn on the Device”) when registering biometric indicators.

- Patients are continuously monitored without any restriction of movement or other impact from the Device

- The device records biometric indicators, which allows them to be visualized in real time and provide an opportunity for relatives and / or medical staff to instantly receive information about the patient’s health status.

- Biometric indicators received from the Device are stored for a specified amount of time, which allows relatives and medical staff to receive information about the history of changes in the patient’s health status for a day, day, week, month, and so on.

- The device attracts the attention of relatives and medical staff due to alarms (disturbing events) generated when registered biometric indicators go out of the corridors or when registering patterns of various pathologies.

Example 2. Description of the sequence of actions of the device for the control of chronic diseases in domestic conditions.

According to the European Region of the World Health Organization, chronic noncommunicable diseases (CID) account for almost 86% of all mortality and 77% of the disease burden, which entails a major burden on the health system and is detrimental to the country's economic development. NCDs are the main cause of mortality, morbidity and disability throughout the world, including in the Russian Federation.

The device can be used in everyday life to control chronic diseases of sedentary people (patients).

At the same time, the following tasks are solved:

- Registration and visualization of biometric indicators of patients in real time allows relatives and medical staff to receive information about changes in the patient’s health after taking medications or performing manipulations.

- Preserving biometric indicators for a specified amount of time allows relatives and medical staff to assess the degree of influence of therapy on the patient’s health status over time (day, week, month, and more).

- Registration of patterns of changes in the observed indicators of the patient allows you to draw the attention of relatives and medical staff to the impending complication until the onset of irreversible health conditions. Such patterns can be: episodes of arrhythmia, frequent visits to the restroom during sleep, prolonged falling asleep due to complicated breathing, sudden attacks of coughing during sleep, an increase in the time spent in bed, and many others.

Example 3. Description of the sequence of actions of the device for managing treatment courses in a domestic environment.

The device can be used in everyday life to control chronic diseases of people (patients) who spend considerable time in bed.

At the same time, the following tasks are solved:

- The device allows the doctor to make actual adjustments to the course of treatment, depending on how the patient responds to the therapy, based on feedback - the nature of the changes in the patient’s health indicators recorded by the device.

- The device allows the doctor to make actual adjustments to the course of treatment, depending on how the patient responds to the therapy, based on feedback - the patient’s health indicators for the day, day, week, month and beyond.

- The device allows the doctor to diagnose complications due to ongoing therapy and adjust the course of treatment due to registration of patterns of changes in the observed indicators of the patient for a day, day, week, month, and so on.

Claims (13)

1. The device is a non-contact recording of vital signs of a patient in a continuous state while lying down, including: the case, made in the form of a plastic molded form and located in the immediate vicinity of the patient’s bed or attached to the bed with the help of fastening devices; a controller located directly in the housing, including amplifier 1 (U1), amplifier 2 (U2), providing additional signal amplification to expand the dynamic range of the device in case of mechanical influences on the sensor (C1) and key (K1), signal recording device (УPC), when turned on, it connects to the cloud service using a secure SSL connection and at the level of the application data transfer protocol continuously transfers the heart rate per minute, respiration rate per minute, to the cloud application ks hemodynamic activity, motor activity index intervallogrammu; a sensor (C1), represented by a piezoelectric sensor of the EmfitR-Series family, located in a cover that is fixed to the bed under the patient’s mattress in the area where the shoulder blades are located, while the sensor (C1) is connected to the amplifier 1 (U1) by a coaxial cable. 2. The device according to claim 1, characterized in that the signal recording device (UPC) has a standard micro-USB connector for supplying a supply voltage of 5 V. 3. The device according to claim 1, characterized in that the signal recording device (URS) has an RJ45 connector for connecting to a router installed in the room using a wired connection, for example, Ethernet. 4. The device according to claim 1, characterized in that the sensor (C1) is a piezoelectric sensor of the EmfitR-Series family with a sensitivity of 25 pC / N, a relative permittivity of 1.1, a capacity of 22 pF / cm ² , a measuring range of <300 N / cm ² , the thickness of the measuring element 0.4 mm, the length of the measuring element 800 mm 5. The method of non-contact recording of vital signs of a patient in a lying state, according to which the sensor (C1) of the device according to claim 1 is fixed to the bed under the patient’s mattress in the area where the shoulder blades are located; when you turn on the power of the device according to claim 1, measure the heart rate per minute, respiratory rate per minute, hemodynamic activity index, motor activity index, intervalogram; receive measured data through a cloud service; save the vital signs received from the device according to claim 1 for a predetermined amount of time; register patterns of changes in observed vital signs; diagnose changes in the patient’s health due to therapy and, if necessary, adjust the course of treatment.

Images