Method of correcting functional status of human operator and apparatus therefor
FIELD: physics, computer engineering.
SUBSTANCE: group of inventions relates to ergatic systems and can be used to correct the functional status of a human operator. The method includes evaluating the status of a human operator. The status indicator used is the heart rate. Limiting values of the range of a good status ChSSmin and ChSSmax are set for each human operator. When the heart rate exceeds the limiting values, the energy stimuli used are light pulses and binaural action, the frequency f of which is set in accordance with a given expression. An apparatus for correcting the functional status of a human operator is used. The apparatus comprises a central control unit connected to a storage unit, a stimulus generating unit and an analysis unit. The stimulus generating unit is connected to a stimulation unit. The output of the analysis unit is connected to the central control unit. The apparatus additionally includes a unit for measuring and processing an electrical cardio signal and a heart rate determining unit. The output of the unit for measuring and processing an electrical cardio signal is connected to the input of the heart rate determining unit, the output of which is connected to the analysis unit.
EFFECT: group of inventions improves the efficiency of correcting the status of a human operator, prevents excessive fatigue of the human operator quickly and in advance, reduces emotional and psychological stress, raises the level of activity of the body owing to a method of determining the status of the human operator, using the heart rate ChSS as an indicator of the status, the effect of light stimuli and binaural action.
2 cl, 2 dwg, 1 tbl
The invention relates to the field of ergatic systems and can be used for determination and correction of the functional state of the operator man-machine systems. Method implemented in the device enhances the effectiveness of the correction and prevention of deterioration of the human operator before there is a moment when he will not be able to fulfil its functions.
The known method of maintaining operation of the driver of the vehicle , in which the presentation of the subject of the stimulus, the registration response to the stimulus, the evaluation of the state of the subject, depending on the degree of satisfaction of the assessment of the testee must take action to restore health by strengthening the attention of the human operator mainly verbal stimuli, or in a critical situation, when the evaluation level is too low, will include one pre-selected program to address a critical situation (in this case, the emergency brake of the vehicle). The disadvantage of this method is its narrow application only in the field of condition monitoring of drivers of vehicles, as well as the fact that the correction condition of the driver runs only in the form of intensification of his attention. Additional re�the core and visual stimuli which are included as a result of receiving an unsatisfactory evaluation state of the subject, in fact only indirectly affect the functional state of the subject and aimed mainly at obtaining refined estimates, the level of which is determined by whether the driver on your own to continue to operate the vehicle or need outside interference.
In the same patent describes a system for implementing the method of maintaining operation of the vehicle driver, which includes connected to the processor blocks the creation and submission of stimuli (sound and visual), blocks of reception and response to stimuli, the block of comparison and decision, a display device (display). The disadvantages of the system are its narrow purpose for use on vehicles, as well as what she allows to perform correction of the driver only in the form of enhanced attention by signalling to the driver about his poor condition and inducement to intensify attention to the continued implementation of the functions.
Closest to the proposed method (prototype) is a method comprising presenting a stimulus to the human operator, the registration response to stimuli, assessment of the current state of the human operator on �Tsvetnoy reaction and stimulation of the human operator, as incentives to correct the condition using energy incentives aimed at changing the functional state of the human operator and the sequence of which is formed in the energy program of stimulation, each of which is aimed at correcting certain of the current state of the human operator, which is evaluated by the degree of differences of indicators of the current state of the individual indicators that determine the state of the human operator as a good, while in response to the applicable incentives use of sensorimotor reaction, and as indicators of the state of use of the functional level of the Central nervous system, stability of reaction and the level of functionality calculated on the value of sensomotor reactions .
The disadvantages of this method.
1. Method is not suitable for many kinds of activities, because the human operator have to be distracted to the applicable incentives to determine its state.
2. For activities with a high level of emotional impact, more effective to correct the condition would be to use neurosensory therapy that allows you to affect the person-operator of the light pulses and binaural effects.
3. Some�s different (opposite) state can give the same average reaction times.
The proposed method of correction of the functional state of the human operator allows to eliminate the above disadvantages of the prototype.
The essence of the proposed method is as follows.
Assess the state of operator if different indicators of the current state of the individual indicators that determine the state of the human operator as good, have energy incentives aimed at changing its functional state. As indicators of the condition uses the value of heart rate variation and for each human operator specify the boundary values of the range good condition HRminand heart ratemax. As an energy stimulus use light pulses and binaural effects, the frequency f of which is defined in accordance with the expression
In the proposed method for the correction used the same stimuli but with different frequency. If the heart rate is in the range [HRmin; HRmax], the corrective effect is not provided.
The task of correction of the functional state of the human operator can be solved by using the neurosensory therapy, an important component of which is audio-visual stimulation (ABC). Unlike other psihoterapevticheskii� techniques ABC does not affect higher mental processes it merely creates the conditions for the exercise of conscious choice of the optimal behavioral responses and facilitate voluntary regulation of mental functions and autonomic responses due to optimization of neural processes in the cerebral cortex and Troubleshooting prerequisites for the functioning of the generator of pathologically enhanced excitation. With such opportunities, ABC can be used as a preventive measure, providing the increase of the adaptation reserve protection mechanisms of the internal organs from the emotional and psychosocial stress, as well as optimization of adaptive responses during extreme impacts. To conduct ABC used appliances generating light and sound signals, which act through the visual and auditory analyzers, with the involvement of cortical, limbic structures and the reticular formation of the brain, which indirectly affects neurohumoral regulation .
For the purpose of visual effects is usually used to light stimuli with a frequency of from 0.5 to 50 Hz. Table 1 summarizes the effect of different frequencies on the functional state of a man. The frequency of the stimuli may be the same, but the ratio of times of on and off signals may be different. Normal� the ratio is 50/50, and calculated according to the rule of "Golden section" - 12,8/87,2; 37,6/62,4, and Vice versa. Short pulses have a more stimulating effect, long - more brake.
The concept of the frequency of the sound stimulation is laid two values:
- carrier frequency - audible tone (continuous tone),
is the modulating frequency coincides with the frequency of light stimuli (intermittent beep).
Commonly used carrier frequency from 50 Hz to 2000 Hz. The most commonly used range from 60 to 400 Hz. Selection of colors is produced on the basis of psycho-acoustic effects of different sound tones. We can also carry out multi-tone exposure by generating signals of a special form. The range of frequencies up to 150 Hz includes the resonant frequency of the internal organs, therefore, binaural beats in the Delta range, organised for carrying up to 150 Hz, can inhibit metabolic processes. Binaural beats in the Delta range, organized on a bearing of 150 to 500 Hz, can inhibit mental functions. Accordingly binaural beats in the beta range on the same bearing will accelerate metabolic processes and activate conscious activity.
When forming an audio tone in the headphones with different frequency in addition to sounding�Oia these tones, there is a feeling of sound pulsations with a frequency equal to the difference frequency sound in the right and left earphone. For example, if the left ear to apply a tone with a frequency of 200 Hz, and the right - 208 Hz, one hears the audio tone frequency (200+208)/2=204 Hz modulated with a sense of sound pulsations with a frequency 208-200=8 Hz .
The frequency of table 1 formed the basis for the formation of the expression (1). Of these waves for stimulation of the human operator in a state of extreme relaxation, in which heart rate<HRminwere the selected frequency of the stimulating pulses from 12 to 40 Hz, and in a state of severe stress, in which HR>HRmax- from 3 to 15 Hz. Moreover, it is assumed the change in frequency of stimulation changing the heart rate. The expression (1) can be illustrated in Fig. 1.
The proposed method allows for comparison with the known method (prototype) to increase the efficiency of correction, to prevent the deterioration of the human operator before there is a moment when he will not be able to fulfil its functions. Improving the efficiency correction is achieved by the fact that when diagnosing the operator does not have to be distracted to the applicable incentives, the current heart rate of the human operator allows you to easily and reliably recognize such States as monotony, emotional tension and page�SS, and use a combination of light and binaural effects can reduce emotional and psychological stress and increase the level of activation of the human operator when monotonie. The change in the frequency correction is carried out smoothly in proportion to the state change.
Summary of the invention and the variant of implementation of the proposed method is illustrated by the following graphics material:
- Fig. 1 is a graph of frequency of stimulation on the frequency of cardiac contractions;
- Fig. 2 - functional diagram of the device.
To achieve the technical result consists in increasing the efficiency of correction, to prevent the deterioration of the human operator before there is a moment when he will not be able to fulfil its functions, comprising a Central control unit connected to the memory unit, the processing unit incentives and the analysis unit, the processing unit incentives connected to the stimulation unit, the output of the analysis unit connected to the Central control unit, inputs of the block of data retrieval and processing electrocardiograma, the block definition of heart rate, and the output of the pickup and processing of electrocardiograph is connected to the input of the block definition of heart rate, the output foun� connected to the unit of analysis.
The device comprises (Fig. 2) from the pickup unit 1 and the processing of electrocardiograma, block 2 determine the heart rate, block 3 of the analysis, the Central control unit 4, the memory unit 5, unit 6 creating the incentive, block 7 stimulation.
Device correction of the functional state of the human operator contains the Central control unit 4 is connected to the memory unit 5, unit 6, creating the incentive, and the unit 3 analysis, block 6 forming the incentives connected to the stimulation unit 7, block 3 of the analysis connected to the Central control unit 4. The output of the pickup unit 1 and the processing of electrocardiograph is connected to the input of block 2 determine the heart rate, the output of which is connected to the unit 3 analysis.
The proposed device correction of the functional state of the human operator works as follows. When you switch the device to determine the need for correction of the functional state of the human operator of the block 1 is carried out the removal and processing of electrocardiograma. Unit 2 determines the values of heart rate, which is passed to block 3 of the analysis. In unit 3 there is an analysis of the values of heart rate and depending on the type of activity and individual characteristics of the human operator is determined by the range of� good condition depending on which of the memory unit 5 to the Central control unit 4 is extracted and transmitted to the heart rate ofminand heart ratemax. These values are used to calculate the frequency of the energy pulses in the Central control unit 4 by the formula (1), which is transmitted in block 6 of the formation incentives. Unit 6 unit 7 controls the stimulation, affect human operator light pulses and binaural effects.
Technical and economic effect of the proposed method and device for its implementation is to increase the efficiency of correction of the state of the human operator that allows an early and swiftly by applying stimulation energy to prevent fatigue of the human operator before it reaches the status, not allowing him to complete execution of its functions. Improving the efficiency correction is achieved by the fact that when diagnosing the operator does not have to be distracted to the applicable incentives, the current heart rate of the human operator allows you to easily and reliably recognize such States as monotony, emotional tension and stress, and using a combination of light and binaural effects can reduce emotional and psychological �of agrusti and increase the level of activation of the human operator when monotonie. The change in the frequency correction is carried out smoothly in proportion to the state change.
1. Patent RU 2111134 C1, 6 WK 28/06, 1998.
2. RF patent №2370212. Method of correction of the functional state of the human operator and the device for its implementation.
3. Golub, J. V., Zhirov V. M. Medical and psychological aspects of the use of light and sound stimulation and bio-feedback, SPb: CAREY, 2007.
4. Rybnikov V. Yu., Bobrischev A. A., Y. V. Golub Audiovisual correction of the functional state of athletes: theory and practice. Monograph. SPb.: Polytechnic-service, 2009.
1. Method of correction of the functional state of the human operator, namely that assess the state of the human operator, if different indicators of the current state of the individual indicators that determine the state of the human operator as good, have energy incentives aimed at changing its functional state, characterized in that as indicators of the condition uses the value of heart rate variation and for each human operator specify the boundary values of the range good condition HRminand heart ratemaxwhen the heart rate limit values as an energy stimulus use light pulses and binaural impact�,
the frequency f is selected in accordance with the expression
2. Device correction of the functional state of the human operator according to claim 1, comprising a Central control unit connected to the memory unit, the processing unit incentives and the analysis unit, the processing unit incentives connected to the stimulation unit, the output of the analysis unit connected to the Central control unit, characterized in that the device additionally introduced the unit of retrieval and processing of electrocardiograma, the block definition of heart rate, and the output of the pickup and processing of electrocardiograph is connected to the input of the block definition of heart rate, the output of which is connected to the unit of analysis.
SUBSTANCE: treatment is three-staged: preparation, restoration and confirmation. At the stage of preparation, pseudostuttering is differentiated from true stuttering, and pseudostuttering is relieved; protein delivery is ensured to body muscles by nutrition correction taking into account the patient's blood type. Desynchronosis is eliminated by synchronising the patient's biological rhythms by matching pulse beats per minute and vocal exhalation rhythmicity accompanied by executing fist motions by clenching and opening it as a multiple of a given rhythm frequency, and a walking rhythm. Speech exercises aiming at developing speech fluidity, thinking and motor coordination exercises are performed. The stage of restoration involves eliminating the causes of true stuttering by activating respiratory, laryngeal and articulation muscles: stuttering is eliminated by localising respiratory spasms by the abdominals. Stuttering is eliminated where laryngeal spasms are localised, by adding laryngeal exercises to the above combined exercises, including internal laryngeal muscular contractions: sialophagia, singing, speaking, reading aloud; stuttering is further eliminated where articulation spasms are localised by adding speech apparatus muscle exercises to the above combined exercises and giving face massage, executing mimic exercises aiming at oro- and nasopharyngeal muscles exercises. At the stage of confirmation, the developed speech skills are confirmed until natural speech skill is developed, by keeping on doing restoration practices. The method enables the recurrence-free elimination of the causes of stuttering at any age and any intensity of stuttering with tonic or clonic convulsions of the vocal apparatus muscles, notwithstanding both neurotic, and neurosis-like types by applying correction and compensation non-drug therapy.
EFFECT: treating stuttering both under the guidance of a specialist, and independently.
SUBSTANCE: analgesics timing and amount are determined according to peak points of pain syndrome manifestations, which are detected by assessing pain syndrome intensity within 24 hours according to the scale with 12 time intervals. The patient is supposed to fill in the time interval form: 1-3; 3-5; 5-7; 7-9; 9-11; 11-13; 13-15; 15-17; 17-19; 19-21; 21-23; 23-1 and records pain intensity every two hours. Each time interval matches with a modified visual analogue scale, which combines elements of verbal expression of pain and is divided into four sub-scales to assess pain as follows: mild, moderate, pronounced and severe; the origin of the scale corresponds to the pain-free state, whereas the end of the scale stands for unsufferable pain.
EFFECT: method enables correcting the analgesics and anti-pain electric stimulation timing that is expected to provide the higher efficacy of the antalgic therapy by having the pain syndrome intensity determined within 24 hours in accordance with the 12-interval scale.
7 dwg, 1 ex
SUBSTANCE: method applies a visual system of depth-effect 2D image perception; ocular movements are recorded by a binocular eye-tracker; right and left eye lines are sensed. At the first stage: Io image is selected, wherein the person being tested perceives image relief and depth effects. The Io is displayed on a monitor screen of the binocular eye-tracker, spaced from the eyes at 0H; a right (Ra) and left (Le) eye line X-coordinate array is recorded during the period ΔT of measurement. A coordinate difference is calculated by formula ΔX=LeX-RaX; a coordinate difference histogram is contoured; a difference histogram contour peak is localised as a peak density of eye focusing planes, a contour line range, and focusing planes. A distance maxH to the difference histogram contour peak is calculated on the left lH and right rH contour lines; provided maxH≠0H, then the differences ΔH=lH-rH are derived, and objective physiological makers of the relief effect that are the parameters independent of an estimation offered by the person being tested and recorded by the binocular eye-tracker are detected. They are compared to a relief analogue that is a 3D-pixel image perception depth 3DIo. A coordinate difference 3DΔX is calculated; a difference histogram is contoured; a difference histogram contour peak is localised as a peak density of eye focusing planes, a contour line; a distance 3DmaxH to the contour peak and the eye focusing plane, and the contour line is measured. Provided the distances 3DmaxH, 3DΔH fall within the distance range ΔH=lH-rH≠0, with maxH≠0H, general physiological principles of the relief effect perception and the depth perception of the pixel images between 3DIo and Io are stated. They are referred to reference plane images IR, which describe positions of the right and left eye focusing planes within the distance range ΔH=lH-rH≠0, with maxH≠0H. The second stage involves drawing independent samples of the people being tested who are presented with the reference plane images IR formed at the first stage. Relief build-up values are derived on the images IR, statistical relief tracking diagrams on the analysed images are constructed. The relief perception for independent samples of the people being tested is matched, and the general principles of the plane image relief perception are laid down.
EFFECT: method enables identifying the principles of unconscious perception of the image relief perception by recording the eye motions by the binocular eye-tracker.
5 dwg, 1 ex
SUBSTANCE: invention refers to medicine, particularly to psychology, and can be used for individual and mass screening in sociology and management. A person being tested is presented with a number of pictures to be selected. The pictures are composed so that each picture contains an image that combines two archetypes with adequate shape and background. The person being tested is suggested to select among the presented number of pictures the most relevant of his/her personality evaluation and to sample. The person being tested is suggested to assign a score to the selected picture. The numerical treatment of the results involves summing up the assigned scores of the same archetypes. The number of pictures can make 20 with each picture containing two combined images with the total number of archetypes equal to 10. The total score is distributed among 1 to 8, whereas the maximum diagnostic number is equal to 10, which is when exceeded enables stating an archetypic identity.
EFFECT: method enables assessing the archetypic identity, the presence of neurotic pattern and intrapersonal conflicts by analysing the archetype-based psychological personality profile.
5 cl, 2 dwg, 1 tbl
SUBSTANCE: method involves finding anamnestic data, clinical signs, work experience in allergically harmful production factors, elimination symptom, symptoms of the disease immediately during employment and deterioration after return to the harmful conditions, total blood serum IgE concentration. Each parameter is appraised by points. The points are summed up, and the derived total score is used to predict a low risk of occupational allergodermatosis, a moderate risk or a high risk.
EFFECT: method enables more accurate prediction ensured by determining significant parameters.
3 tbl, 3 ex
SUBSTANCE: invention refers to medicine, namely to animal's behavioural physiology. The orientational-exploratory and locomotor behaviour in rats is rated with an underlying developing acquisition of a food-producing skill by differentiating an animal's motion path in a batwing-shaped labyrinth. The rating procedure is based on the following forms of motor actions: movement to the labyrinth loci without a food reward; purposive movement to the locus with the food reward; exploratory travelling through all the labyrinth landings; movements to the locus contra lateral with the food reward; multiple movements between the two labyrinth loci; freezing behaviour in the start position.
EFFECT: method enables increasing the investigation reliability that is ensured by a multiple assessment of the central nervous system functions.
2 cl, 1 tbl, 1 ex, 6 dwg
SUBSTANCE: psychoemotional state in children and adolescents is assessed by a projective test of fairy-tale characters by presenting pictures of the fairy-tale characters to the persons being tested. The presented pictures contain a number of images of the fairy-tale characters grouped according to their archetypes. The person being tested is suggested to choose the first mini set of the characters having the most subjectively positive characteristics, as well as to choose the second mini set of the characters with the most subjectively negative characteristics from the rest. The number of the characters of the both mini sets is less than the total number of the characters. The characters chosen from both sets first are assigned with the highest point; the characters chosen next are assigned with descending points according to the degree of priority. A procedure of mathematical processing represents summing the points assigned to the characters of the same archetype, and the derived total point of the characters of the same archetype is used to conclude the personality.
EFFECT: method enables increasing the effectiveness and objectivity of the integral assessment of the personal psychological profile in the adolescents and children by using the projective method.
5 cl, 4 dwg, 10 tbl, 1 ex
SUBSTANCE: individuals with different known psychic types are filtered. Examined individual's and filtered individual's external parameters are selected and measured. The examined individual's selected and measured external parameters are compared to the same filtered individual's external parameters, and the examined individual's psychics is referred to the filtered individual's psychic type having the maximum similarity of the external parameters. The filtration procedure can also cover the individuals with various known psychics typed on the basis of the characteristics of ethics-logic, intuition-sensory, extroversion-introversion, rationality-irrationality or a type of temperament.
EFFECT: method enables providing the higher reliability of the obtained results when typing the individual's psychics by determining the significant similarity of the individual's external parameters to the close individual's psychic structure.
4 cl, 2 tbl
SUBSTANCE: method includes, on a horizontal area using an optical method, forming strips of light with an arbitrary shape and width, which randomly move on the area while passing through its centre; placing the test subject at the centre of the area, evaluating movement of the strips of light and jumping over said strips such that take-off points and landing points are as close as possible to corresponding boundaries of the jumped over strips of light; recording movements of the strips of light and the test subject; determining distance from the take-off points and landing points of the test subject to corresponding boundaries of the jumped over strips of light; calculating arithmetic mean values and mean-square deviation of the distance from the take-off points and landing points of the test subject to corresponding boundaries of the jumped over strips of light; based on the calculated arithmetic mean values and mean-square deviation, determining motor capabilities of the test subject and accuracy thereof.
EFFECT: method enables to evaluate human motor capabilities using instrumental examination.
SUBSTANCE: method involves detecting a pain tolerance threshold, individual's psychoemotional response to the first episode of alcohol consumption or the inexperience of consumption, as well as parent family's attitude to alcohol consumption. The derived values of a combination of the complex detection of the psychophysiological and psychosocial status enables determining a degree of individual's predisposition to alcohol consumption, such as: an evident risk of alcoholisation, a moderate risk or no risk.
EFFECT: method enables increasing the accuracy of the degree of the risk of individual's predisposition to alcohol consumption by the complex detection of the psychophysiological and psychosocial status and the combination thereof.
4 dwg, 3 ex
SUBSTANCE: group of inventions relates to medicine. A method of photoplethysmography contains a stage at which a signal, based on at least one signal from at least one sensor, made with a possibility of trapping light from a live object, is processed to separate information about a characteristic of a periodic biological phenomenon. At least, one of the signals from at least one sensor is obtained with the application of at least one light source and a filter, installed before at least one sensor, adjusted for the maximum in a water absorption spectrum.
EFFECT: group of inventions makes it possible to increase the probability of separating a relatively clear biometric signal.
10 cl, 6 dwg
SUBSTANCE: group of inventions refers to medicine. A method for measuring an individual's heart rate and/or heart rate variability is implemented by means of a device and is applicable for monitoring and/or for determining heart failure cases. When diagnosing the heart failure, the device generates an alarm signal. The device comprises a holder for placing the individual's part of the body and a motion sensor functionally connected to the holder. The holder is configured to be movable horizontally in relation to the base. The motion sensor is configured to measure the individual's motion signal horizontally. The motion sensor correlates with an electrical motion sensor and comprises a capacitor with an electric capacity formed between the first and second electrodes. The first electrode is fixed in relation to the base, while the second electrode - in relation to the holder. That is combined with measuring the individual's horizontal motion signal in relation to the base. The individual's part of the body lies on the holder and rests against it. The signal is measured by means of the electric capacity of the capacitor.
EFFECT: using the group of inventions enables measuring the heart rate and/or heart rate variability reliably or discreetly with using no sensors attached to the individual's body or adjacent the individual's body.
12 cl, 2 dwg
SUBSTANCE: invention refers to medical equipment, namely to movable anatomical structure recognisers, particularly for detecting foetal cardiac contractions. A method of recognising involves the stages of obtaining ultrasonic data comprising a Doppler shift of at least one anatomical structure, dividing the ultrasonic data by a number of time gaps, drawing a feature vector for each time gap, classifying each time gap with the use of the Doppler shift by recognising with the use of a pattern recognition modulus of at least one anatomical structure by means of the classification of each time gap. The substance is implemented by a recognition system comprising a microprocessor and integrated into a foetus monitor comprising an ultrasonic system with the use of an ultrasonic converter.
EFFECT: using invention enables reducing risks of fault recognition of the movable anatomical structures inside a subject.
13 cl, 5 dwg
SUBSTANCE: system for blood pressure measurement with using an indirect method comprises a device for applying an external contact force to the measured artery, a prominent arterial sign detector and a measuring and recording device for deriving systolic and diastolic periods of the arterial cycle from the detector records. The measuring and recording device measures diastolic pressure during the diastolic period, before the artery is completely occluded, and systolic pressure is measured during the systolic period, when the artery is occluded. The detector records the prominent signs before, during and after the external force has been received. While measuring the blood pressure by obliteration, the arterial cycle is received by differentiating the systolic and diastolic periods without involving the blood flow and arterial wall into the external force. The external force is applied to the artery, and the arterial prominent sign is recorded from each period. The external force is prolonged until balanced with the blood pressure during the measured period. The pre-set blood pressure is measured during the pre-set arterial cycle, when the arterial prominent sign disappears during any of the systolic or diastolic periods. When measuring the diastolic blood pressure by a release, the external force is applied to the artery until it has been occluded. The external force is released until balanced with the blood pressure during the diastolic period. The diastolic pressure is measured, while recording the blood prominent sign at the moment of time, when the arterial prominent sign appears from the diastolic period of the arterial cycle.
EFFECT: using the group of inventions enables increasing the blood pressure measurement accuracy with the use of the indirect method.
32 cl, 13 dwg
SUBSTANCE: invention refers to medicine. A method for pulse wave analysis is implemented by means of a pulse wave analyser. That involves forming a pulse wave signal of one cardiac contraction by a pressure sensor. The formed signal is transformed into a digital signal by a digital transformation unit. That is followed by forming a signal of a quartic derivative from an original signal form on the basis of the transformed digital signal by a quartic differentiation filter. A calculation unit is used to calculate the extremum point of the signal of the quartic derivative; the pulse wave signal form is sectioned on a reflected wave area and an area of missing the reflected wave, and a characteristic point of the reflected wave is recovered. A start point of the reflected wave area is found on the basis of the extremum point of the signal form of the quartic derivative; the final point of the reflected wave area is found on the basis of an amplitude of the signal form of the quartic derivative, and the convergence time of the reflected wave is calculated as an index.
EFFECT: using the invention enables providing more accurate determination of the convergence time of the reflected wave.
6 cl, 12 dwg
SUBSTANCE: invention relates to medical equipment. A blood pressure metre comprises a first pneumatic chamber in a first cuff applied on a shoulder, a second pneumatic chamber in a second cuff applied on a lower limb, a measuring unit for synchronous blood pressure measurement in the first and second chambers, a detection unit for obtaining first and second blood pressure values by measuring internal pressure in the first and second pneumatic chambers respectively, and a computer assembly. The computer assembly performed a first computing procedure of calculating a first pulse wave velocity derived from the first and second blood pressure values, and a detection procedure to detect applicability of the first pulse wave velocity using the first and/or second blood pressure value.
EFFECT: using the invention enables providing higher accuracy of blood pressure measurement in arteriosclerosis.
7 cl, 10 dwg
SUBSTANCE: group of inventions refers to medicine. Implementing the method is accompanied by recording two differential pulsograms simultaneously of two pulsating body surface areas above the arteries being examined. A distance L of these areas is determined. A pulse wave travel time Δt is derived from a cardiac cycle diagram shift of the two pulsograms. A pulse wave velocity V is calculated by formula V=L/Δt. A device comprises two piezoelectric detectors, an interface circuit, a computer and a monitor. The interface circuit comprises two amplifiers, an analogue-to-digital converter (ADC), a galvanic isolation unit, a conversion unit, a matching unit and a reference voltage source.
EFFECT: group of inventions enables simplifying the method by avoiding ECG recording, and providing higher accuracy of determining the pulse wave velocity of the blood pressure along the aorta and greater arterial vessels.
3 cl, 5 dwg, 1 tbl, 2 ex
SUBSTANCE: invention refers to medicine. A portable device for the noncontact random check of patient's vital values comprises: a distance sensor for series detection of a time range of the patient's chest, a respiratory rate calculator for respiratory activity measurement derived from the detected time range. Besides, the device comprises two handles so that the patient holds the device with both hands so that the distance sensor is directed to the patient's chest. The handles comprise ECG recording electrodes. The device comprises an optic sensor for photoplethysmographic measurement which is placed so that the patient holding the device automatically puts a finger on the optic sensor.
EFFECT: invention provides higher usability and simplicity of the random check of the patient's respiration ensured by guiding the distance sensor onto the patient's chest with two hands.
14 cl, 6 dwg
SUBSTANCE: group of inventions relates to medicine. Versions of device for measuring information about blood pressure contains two envelopes with flowing medium and two sensors for measuring internal pressures of envelopes with flowing media, unit for regulating internal pressure of the second envelope with flowing medium and control unit for controlling calculation for calculation of parameter for determination of arteriosclerosis degree and regulation of first regulation unit. Said control unit performs steps of method for obtaining parameter for obtaining to determine arteriosclerosis degree from pulse wave. In the process of method realisation pressure of the second envelope is increased to the level higher than systolic blood pressure. The first pulse wave of measured part is detected on the basis of measurement of internal pressure of the first envelope with flowing medium. The parameter is calculated from the first pulse wave. Internal pressure of the second envelope with flowing medium is lowered below systolic pressure in case when said parameter fails to be calculated from the first pulse wave. The second pulse wave of measured part is detected. The parameter is calculated from the second pulse wave.
EFFECT: group of inventions makes it possible to increase accuracy of arteriosclerosis determination on the basis of measured information about blood pressure.
8 cl, 27 dwg, 4 ex
SUBSTANCE: invention relates to medicine. Interactive baby bottle is made with electronic device, which has sensor, configured for measurement of heart rate, and executive mechanism, configured for transmission of measured heart beat to baby. Executive mechanism contains one of multitude of vibration elements, configured for creation of tactile sensation of measured heartbeat, and one or more loudspeakers, located on interactive baby bottle and configured for providing acoustic feedback in real time mode for transmission of measured heartbeat to baby. Vibration element is built into nipple or located in suitable manner on interactive baby bottle for transmission of measured heartbeat to baby via nipple.
EFFECT: invention facilitates drinking process, as it makes possible to create sensation of connection between baby and person, feeding baby from bottle, thus approaching breast feeding.
13 cl, 6 dwg
SUBSTANCE: according to method of processing of pulse wave signals, sinusoidal signal of pulse wave, measured and conversed into digital form, is subject to decomposition to odd and even sinusoidal components. Comparison analysis is performed after to put the diagnosis due to comparison of parameters of received components one to another or to corresponding reference parameters. Decomposition to components is performed in three steps. At first one the odd and even components of pulse wave sinusoidal signal are decomposed. During second and third steps any components of decomposition from previous step is decomposed. For comparison analysis the parameters of components, received by decomposition during third step, are used. Eight received components characterizes 6 known elements and 14 meridians correspondingly of traditional Chinese medicine, which increases precision of diagnosis.
EFFECT: improved precision.
4 cl, 6 dwg