Device for the study of the electrophysiological signals from the brain, the holder of the electrodes removal of brain potentials and electrode device (options)

 

The invention relates to medical engineering, in particular to devices for removing information about the functional state of the person when the research methods of electroencephalography, electrocardiography, rheography, and so on, the Device comprises a holder electrodes and the electrodes of the discharge wires. Electrode holder made in the form of an elastic cap with eyelets and fastened it with mutual arrangement in accordance with the standard lead system EEG installation nests in the form of a cylindrical eyelet of insulating material. Each of the adjusting jacks is input to the electrode on the outer side elastic cap and provided with a lock position of the electrode in the installation slot, and the discharge wires are located on the outer side of the elastic cap and connected to the input terminal. Execution thus devices for research, holder of electrodes and electrode devices provides increased ease of use by simplifying control and preparation of the installation locations of the electrodes, simplify the installation and replacement of electrodes and disinfection devices, and improving reliability and maintainability. 4 C. and 11 C.p. f-tristam for removing information about the functional state of the person when the research methods of electroencephalography, electrocardiography, rheography, etc.

From the description of U.S. patent No. 4083739, IPC And 61 In 5/04, publ. 1978 known device for the study of the bioelectric activity of the brain, containing elastic cap, which is rigidly fixed to the electrodes and which is fixed elastic straps connecting the lugs of the cap with underarm strap. The electrodes have a center hole for insertion in the cavity between the current collector and the conductive skin gel with a syringe with a blunt needle. This device has significant disadvantages - difficult access to places of contact of the electrode with the skin, which preparation takes a long time, relatively low reliability and maintainability, since the violation of the contact lead wire with a current collector, you must remove the cap and destroy the electrode, and processing disinfectant cap with fixed electrodes breaks the surface of the current collector and reduces the service life of the helmet.

Protected by patents of the Russian Federation No. 2071721, IPC 6 And 61 In 5/0476, publ. 1997 No. 2118507, IPC 6 And 61 In 5/0476, 5/04, publ. 1998 helmets electroencephalographic contain elastic cap of elastic twisted flagella, whose nodes ustanovki. The design of these helmets provides separate disinfection cap and electrodes, allows you to have one size beanie. However, the presence of bound rubber flagella in thick hairline creates discomfort for the patient during the installation process of the electrodes or their replacement, difficult to control the mounting location of the electrodes, and the installation takes a long time.

From the description to the author's certificate of the USSR No. 676273, IPC 2 And 61 In 5/04, publ. 1978 a device for studies of the electrophysiological signals from the brain that contains the electrode holder, representing an inflatable shell of the hard hat, and the electrodes of the discharge wires, mounted on the inflatable shell side adjacent to the patient's head, and the discharge wire electrodes are located on the outer side of the inflatable shell. Such a device is inconvenient in operation, as the preparation of the places of contact of the electrodes with skin is extremely difficult and impossible to monitor the status of the installation locations of the electrodes has a low maintainability and reliability because the failure of at least one electrode requires replacement of the entire device. In addition, this device cannot separate the, - improved usability by simplifying control and preparation of the installation locations of the electrodes, simplify the installation and replacement of electrodes and disinfection devices, and improving reliability and maintainability.

This technical result is achieved in that a device for studies of the electrophysiological signals from the brain that contains the holder of the electrodes and the electrodes of the discharge wires, electrode holder made in the form of a resilient cap attached it with mutual arrangement in accordance with the standard lead system EEG installation nests in the form of a cylindrical eyelet of insulating material, each of the adjusting jacks has an input electrode on the outer side elastic cap and provided with a lock position of the electrode in the installation slot, and the discharge wires are located on the outer side of the elastic cap and connected to the input terminal. The discharge wire electrodes are grouped into two harness placed on an elastic cap symmetrically sagittal plane, and the location of each discharge wire in the harness corresponds to the location on the elastic shapochku. The discharge wire and installation socket additionally have distinctive coloration, with the installation slot and a lead wire is inserted into this slot electrode have the same color. Harness from the discharge wire is planar and is connected to the input connector through a tight transition Shoe, fastened with eyelet elastic cap plug connection. Elastic cap made with the possibility of fixing on the head with elastic straps. At least two mounting slots on the outer surface of the end face in contact with the skin, have a conductive coating connected to the contact output for additional discharge wire, located on the exterior side of the elastic cap.

Electrode holder for removal of brain potentials used in the inventive device for studies of the electrophysiological signals from the brain, is an independent object of the invention.

From the description of U.S. patent No. 4083739, IPC And 61 In 5/04, publ. 1978 known holder of electrodes removal of brain potentials, made in the form of elastic caps, which is rigidly fixed to the electrodes and which is fixed elastic straps will connect as a prototype. The disadvantages of the prototype - it is impossible to monitor the status of the installation locations of the electrodes, low maintainability and reliability because the failure of at least one electrode requires replacement of the entire holder electrodes, the inability to separate disinfection elastic cap and electrodes.

The technical result from the use of the invention - improving usability by simplifying the installation process electrodes and enabling separate disinfection holder electrodes and electrodes with a discharge wires.

This technical result is achieved in that the holder electrodes removal of brain potentials, made in the form of elastic caps, stretchy beanie is made of high strength and chemical resistant fabric of polymeric fibers, such as nylon, elastic cap fixed by mutual arrangement in accordance with the standard lead system EEG installation nests in the form of a cylindrical eyelet of insulating material, each mounting slot under the electrode contains inserted one into each of the tubular liner and the tubular base, between the liner and the base is fixed edges from the adjustment slot located inside the elastic cap, and the liner is on the outside and provided with a lock position of the electrode in the installation slot. The installation slot under the electrode is made in the form of a cylindrical eyelets with internal diameter exceeding the geometric dimensions of the contact surface of the current collector electrode, and the liner is provided with a lock position of the electrode in the form of internal collets.

Electrode device for removal of biopotentials as an independent object of the invention.

As a prototype of the selected medical probe, known from the description to author's certificate No. 1690675, IPC 5 And 61 In 5/04, publ. 1991, coinciding with the inventive electrode device for the purpose. This electrode includes a current collector in the center of which is located a recess for applying conductive paste, and a discharge conduit connected to the current collector, the current collector is made in the form of a disk with a groove for biological glue, located along the perimeter between the two ribs, the height of the outer flange is made lower than a height of the inner. For easy operation, the current collector may be placed in the elastic case. The General features of the declared electrode device for removal of biopotentials with the prototype are Nali is lost for filling gel, providing contact one surface of the current collector with the body surface.

The disadvantage of the prototype is an inconvenience in operation due to the complexity of fixing the electrode device on the patient's body, the lack of control of contact of the electrode with the body, and low precision dosing electrically conductive gel, resulting in difficult to control the contact area of the electrode body.

The technical result, which is aimed invention, improved ease of use by simplifying the fixing of the electrodes in the holder, ensuring control of the place of contact of the electrode with the body and clear dosing electrically conductive gel in the cavity between the surface of the current collector and the surface of the body.

In the first version of the technical result is achieved in that the electrode unit comprising mounted in an elastic electrode holder containing enclosed in insulating housing with a cavity for filling a conductive gel is a flat current collector connected to the discharge wire further comprises a mounting socket mounted on the elastic holder and consisting of inserted one into each of the hollow base and a hollow insert, the OS is submitted in the base with the external side of the elastic holder and has a position lock the electrode in the installation slot, between the liner and the base of the enclosed elements fastening the mounting slot in the elastic holder and the housing electrode has an element fixing the position of the electrode in the installation slot. The insert is made with a flange and the inner collet, between the inner surface and the outer surface of the liner clamped edge of the hole elastic holder, which is fixed to the installation slot, and the insert is made with its emphasis flange at the end of the base to clamp the edges of the elastic holder. The electrode contains connected with the discharge wire is a flat current collector, enclosed in a cylindrical housing with a cavity for filling a conductive gel, providing contact at least one surface of the current collector with the surface of the head, a cylindrical body of the electrode has an outer diameter equal to the inner diameter of the collet, and on the outer surface of the collar and collet liner installation socket - fixing bevel, the dimensions of which correspond to the dimensions of the flange body of the electrode, the base installation nests inside has a shelf to rest on his ledge of a body electrode, the ends of the base installation of the socket and the housing electrode, apricus is the electrode device, including mounted in an elastic electrode holder containing enclosed in insulating housing with a cavity for filling a conductive gel is a flat current collector connected to the discharge wire further comprises a mounting socket mounted on the elastic holder and consisting of inserted one into each of the hollow base and a hollow insert, the base installation of the nest is placed on the elastic holder from the side in contact with the body, the liner is inserted into the base with the outer side of the elastic holder and has a position lock the electrode in the installation slot, between the liner and the base of the enclosed elements fastening the mounting slot in the elastic holder, the body of the electrode has an element fixing the position of the electrode in the installation slot, and the base mounting slots on the outer side and/or end in contact with the body has a conductive coating connected to the contact output for connecting the second outlet wire. The insert is made with a flange and the inner collet, between the inner surface and the outer surface of the liner clamped edge of the hole elastic holder, which documented the m edges of the elastic holder, and contact pin for connecting the second outlet wire withdrawn from the external side of the elastic holder. The electrode contains connected with the discharge wire is a flat current collector, enclosed in a cylindrical housing with a cavity for filling a conductive gel, providing contact at least one surface of the current collector with the surface of the body, the cylindrical body of the electrode has an outer diameter equal to the inner diameter of the collet, and on the outer surface of the collar and collet liner installation socket - fixing bevel, the dimensions of which correspond to the dimensions of the flange body of the electrode, the base installation nests inside has a shelf to rest on his ledge of a body electrode, the ends of the base installation of the socket and the body of the electrode in contact with the body placed in the same plane. Insulating housing electrode has a second cavity with input a round hole, equal to the normal cross-section fitting disposable syringe and connected through the opening in the current collector with a cavity for filling a conductive gel.

The invention illustrated by the drawings. In Fig.1 shows the device for research electrophysiologically, in Fig.3 - the design of the mounting socket of Fig.4 - the design of the electrode of Fig.5 - construction of the second variant of the electrode device. In Fig.1...5 are marked by numbers:

1 - the holder of the electrodes in the form of elastic cap;

2 - eyelet elastic cap;

3 is a longitudinal openings in the lugs 2;

4 - circular hole in an elastic cap 1;

5 - installation of the nest;

6 - base mounting socket 5;

7 - insert the mounting socket 5;

8 - flange liner 7;

9 - discharge wire;

10 - electrodes;

11 - tourniquet electrode device;

12 - input connector;

13 is a transitional Shoe;

14 - miniature socket;

15 - guiding rails;

16 - the current collector;

17 is a cylindrical body electrode;

18 - cavity for filling conductive gel;

19 - the opening in the current collector 16;

20 - second introductory cavity in the body of the electrode;

21 technology pin;

22 - collet liner 7;

23 is a flange on the body of the electrode;

24 - emphasis on the installation base 6 of the socket 5;

25 - end of the housing 17;

26 - end of the base 6;

27 - fasteners elastic cap 1;

28 - conductive coating on the end face of the base 6;

29 - pin output;

30 - toporowska of the brain described in example implementations for research methods of electroencephalography in the standard system leads 10-20 with twenty-four electrodes (Fig.1). It contains the electrode holder in the form of elastic cap 1 of durable and chemically resistant fabrics made from plastic fibres type nylon, silon used for the manufacture of elastic hosiery. The cap 1 has lugs 2, which can be done longitudinal holes 3 under the ears, which provides a more tight fit of the cap 1 in the area mastodynia processes, which can be installed reference electrodes. In the cap 1 (Fig.2) with the mutual location corresponding to the standard system leads EEG 10-20, made round holes 4 under the mounting socket 5. The installation slot 5 (Fig.3) made in the form of eyelets of insulating material, for example polyamide plastic, and comprises a tubular base 6 and the insert 7 with the flange 8. The inner diameter of the base 6 is docked with an external diameter of the liner 7 in such a way that the insert 7 is inserted into the base 6 with tension when placed between the edges of the holes 4, the base 6 is mounted on the inner side of the cap 1 and the liner 7 from the outside and rests on the end face of the base flange 8. The discharge wire electrodes 9 and 10 are grouped into two flat harness 11, mounted on the cap 1 symmetric the twenty-four wires 9 twenty-one with one hand over skaldowie electrodes, two reference electrodes and one neutral electrode. On the other side of the wire 9 of each of the wiring harness 11 can be connected to the input terminal 12 through a tight transition block 13, which additionally may contain miniature socket 14 for connection of the electrodes for the removal of electromyogram and/or electrooculogram (Fig.1...5 not shown). Transition strip 13 may be secured to the lugs 2 plug connection, for example using a spring clip or Velcro-Burr. The location of each of the wires 9 in the harness 11 corresponds to the location of the slot 5, which must be installed electrode 10. To ensure error-free installation 10 installation in slot 5, 9 wire electrodes 10 have different lengths and are grouped guiding plates 15. The electrode 9 has a flat current collector 16 (Fig.4) enclosed in a hollow cylindrical body 17 with a cavity 18 for filling conductive gel through the opening 19 in the current collector 16. Introductory cavity 20 of the housing 17 is made under fitting disposable syringe that allows metered to enter a conductive gel into the cavity 18 between the surface of the current collector 16 and the skin. The current collector 16 is connected to provode covers the current collector 16 to the perimeter, and the hole 19 connects the cavity 18 and 20.

The electrode device comprises a mounting socket 5, fixed on the elastic holder electrodes, and the electrode 10 (Fig.3 and 4). For fixation of the electrode 10 in the socket 5 on the inside of the liner 7 has a collet 22, the inner diameter of which is equal to the external diameter of the housing 17, and the casing 17 may be of the locking flange 23. Inside the base 6 has a stop 24, which rests against the ledge on the housing 17, thus combining in one plane end faces 25 and 26 of the housing 1 and the base 6 in contact with the scalp. Electrode holder in the form of elastic cap 1 can be fixed on the head with the use of fastening elements 27 on the eyes 2 (Fig.2). Mounting can be done using the elastic straps to the collar or torulosa skeleton of thick fabric or chin (Fig.1...5 not shown). You can mount and use a hard skeleton, for example the arc headphones with padded, winemine in the pit under mastoianni processes.

The electrode device in the second embodiment (Fig.5) differs in that it is the end face 26 of the base 6 of the installation slot 5 in contact with the body has a conductive coating 28, such as metallic. It covered oznacenim to connect additional discharge wire 30.

Device for the study of electrophysiological brain signals is used as follows. Electrode holder in the form of elastic cap 1 is put on the head so that the mounting socket 5 was at points corresponding to the standard lead system. To do this is not difficult, because the elastic cap 1 of the polymeric fabric type nylon is stretched equally in all directions. In holes 3 pass through the ears and elastic straps lugs 2 are fastened with Vorotnikov or torsby frame. The frame may be made of thick fabric, fixed on the figure of the patient Velcro. Further, through holes in the mounting slots 5 is prepared surface of the contact electrode 10 to the skin - apart and prodavlivayutsya hair and wiped with an alcohol-based solution. Since the openings of the slots 5 have a diameter of 9...11 mm, this operation does not create inconvenience to the patient and takes a little time. Then transitional pads 13 are fixed to the lugs 2 and the electrodes 10 are mounted in the mounting socket 5. This procedure does not cause discomfort to the patient, since the electrode 10 is installed in slot 5 light by pressing and recorded automatically. Time is dynany guiding plates 15, simplifies the selection of installation location, and have the same mounting socket color. As guiding plates are combined is not more than four wires, comparable in length, distinctive coloration may include only four well-distinguishable color that completely eliminates erroneous installation of the electrodes. After installation of the electrodes 10 is filling cavities 18 conductive gel. In a disposable syringe typed conductive gel, the nozzle of the syringe is inserted into the cavity 20 and the required amount of gel is injected into the cavity 18. Then on top of the cap 1 may be wearing protective cover made of thin cotton fabric with elastic band around the perimeter. Transitional pads 13 cables are connected to the output connector 12, which can be attached to the collar or Tarasova frame.

The claimed device for the study of the electrophysiological signals from the brain in comparison with the prototype is more convenient in operation. Donning the cap 1 when any hairline does not cause the patient unpleasant pain, preparation of installation locations of the electrodes 10 is easily controlled, the installation process of the electrodes 10 is greatly simplified and eliminates errors, the ability section is tov 11 provides fast and easy replacement, and thereby improves the maintainability of the helmet. Such a device may long be worn by the patient and even be used to study the biological activity of the brain during sleep.

Electrode holder for removal of brain potentials in comparison with the known for more convenient operation by simplifying the installation of the electrodes, preparation and control of the designated contact of the electrode with the body.

Declared electrode unit comprising mounting socket 5, fixed on the elastic holder electrodes, and the electrode 10, the position of which is fixed in the installation slot 5 may be used not only in electroencephalography, but in the rheography or electrocardiography, as well as the simultaneous holding of electroencephalography and rheography, when the auxiliary discharge wire connects to recanalization.

The use of the electrode device can significantly reduce the installation time of the electrodes, to increase the reliability of their confirmation and accuracy of dosing electrically conductive gel to ensure the stability of the contact of the electrode with the body.

Claims

1. Device for the study of the electrophysiological signals from the brain that contains the holder antichnoi cap pinned it with mutual arrangement in accordance with the standard lead system EEG installation nests in the form of a cylindrical eyelet of insulating material, each of the adjusting jacks is input to the electrode on the outer side elastic cap and provided with a lock position of the electrode in the installation slot, and the discharge wires are located on the outer side of the elastic cap and connected to the input terminal.

2. The device under item 1, characterized in that the discharge wire electrodes are grouped into two harness placed on an elastic cap symmetrically sagittal plane, and the location of each discharge wire in the harness corresponds to the location on the elastic cap installation socket, into which is inserted an electrode and a lead wire is bonded guiding plates.

3. Device according to one of p. 1 or 2, characterized in that the discharge wire and installation socket additionally have distinctive coloration, with the installation slot and a lead wire is inserted into this slot electrode have the same color.

4. Device according to one of paragraphs.1-3, characterized in that the harness from the discharge wire is planar and is connected to the input connector through a tight transition Shoe, fastened with eyelet elastic cap plug connection.

5. Device according to one of paragraphs.1-4, distinguish one from PP.1-5, characterized in that at least two mounting slots on the outer surface of end faces in contact with the skin, have a conductive coating connected to the contact output for additional discharge wire, located on the exterior side of the elastic cap.

7. Electrode holder for removal of brain potentials, made in the form of elastic cap, characterized in that the elastic cap is made of high strength and chemical resistant fabric of polymeric fibers, such as nylon, elastic cap with mutual arrangement in accordance with the standard lead system EEG fixed installation nests in the form of a cylindrical eyelet of insulating material, each mounting slot under the electrode contains inserted one into each of the tubular liner and the tubular base, between the liner and the base is fixed to the edge of the hole in an elastic cap, which is fixed to the installation slot under the electrode, the base installation of the nest is placed inside the elastic cap and the liner is on the outside and provided with a lock position of the electrode in the installation slot.

8. Electrode holder under item 7, characterized t is ω, exceeding the geometric dimensions of the contact surface of the current collector electrode, and the liner is provided with a lock position of the electrode in the form of internal collets.

9. An electrode device, comprising mounted in an elastic electrode holder containing enclosed in insulating housing with a cavity for filling a conductive gel is a flat current collector connected to the discharge wire, characterized in that it contains the installation socket fixed on the elastic holder and consisting of inserted one into each of the hollow base and a hollow insert, the base installation of the nest is placed on the elastic holder from the side in contact with the body, the liner is inserted into the base with the outer side of the elastic holder and has a position lock the electrode in the installation slot, between the liner and the base of the enclosed elements fastening the mounting slot in the elastic holder, and the case electrode has an element fixing the position of the electrode in the installation slot.

10. Electrode device according to p. 9, characterized in that the insert is made with a flange and the inner collet, between the inner surface and the outer surface of the liner is clamped by crossconnect stop its flange in the end of the base to clamp the edges of the elastic holder.

11. Electrode device according to one of the p. 9 or 10, characterized in that the electrode contains connected with the discharge wire is a flat current collector, enclosed in a cylindrical housing with a cavity for filling a conductive gel, providing contact at least one surface of the current collector with the surface of the body, the cylindrical body of the electrode has an outer diameter equal to the inner diameter of the collet liner installation socket, and on the outer surface of the collar and collet liner installation socket-fixing bevel, the dimensions of which correspond to the dimensions of the flange body of the electrode, the base installation nests inside has a shelf to rest on his ledge of a body electrode, the ends of the base installation of the socket and the body of the electrode in contact with the body placed in the same plane.

12. An electrode device, comprising mounted in an elastic electrode holder containing enclosed in insulating housing with a cavity for filling a conductive gel is a flat current collector connected to the discharge wire, characterized in that it contains the installation socket fixed on the elastic holder and consisting of inserted others the Le side, contact with the body, the liner is inserted into the base with the outer side of the elastic holder and has a position lock the electrode in the installation slot, between the liner and the base of the enclosed elements fastening the mounting slot in the elastic holder, the body of the electrode has an element fixing the position of the electrode in the installation slot, and the base mounting slots on the outer side and/or end in contact with the body has a conductive coating connected to the contact output for connecting the second outlet wire.

13. Electrode device according to p. 12, wherein the insert is made with a flange and the inner collet, between the inner surface and the outer surface of the liner clamped edge of the hole elastic holder, which is fixed to the installation slot, and the insert is made with its emphasis flange at the end of the base to clamp the edges of the elastic holder and the contact output for connecting the second outlet wire withdrawn from the external side of the elastic holder.

14. Electrode device according to one of the p. 12 or 13, characterized in that the electrode contains connected with the discharge wire is a flat current collector, the act of at least one surface of the current collector with the body surface, cylindrical body of the electrode has an outer diameter equal to the inner diameter of the collet, and on the outer surface of the collar and collet liner installation socket - fixing bevel, the dimensions of which correspond to the dimensions of the flange body of the electrode, the base installation nests inside has a shelf to rest on his ledge of a body electrode, the ends of the base installation of the socket and the body of the electrode in contact with the body placed in the same plane.

15. The electrode device according to one of paragraphs.9-14, characterized in that the insulating housing electrode has a second cavity with input a round hole, equal to the normal cross-section fitting disposable syringe and connected through the opening in the current collector with a cavity for filling a conductive gel.

 

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FIELD: medicine, neurology, psychopathology, neurosurgery, neurophysiology, experimental neurobiology.

SUBSTANCE: one should simultaneously register electroencephalogram (EEG) to detect the level of constant potential (LCP). At LCP negativization and increased EEG power one should detect depolarizational activation of neurons and enhanced metabolism. At LCP negativization and decreased EEG power - depolarized inhibition of neurons and metabolism suppression. At LCP positivation and increased EEG power - either repolarized or hyperpolarized activation of neurons and enhanced metabolism. At LCP positivation and decreased EEG power - hyperpolarized suppression of neurons and decreased metabolism of nervous tissue. The method enables to correctly detect therapeutic tactics due to simultaneous LCP and EEG registration that enables to differentiate transition from one functional and metabolic state into another.

EFFECT: higher accuracy of diagnostics.

5 dwg, 1 ex, 1 tbl

FIELD: medicine, neurology.

SUBSTANCE: one should establish neurological status, bioelectric cerebral activity, availability of perinatal and ORL pathology in patients, establish their gradations and numerical values followed by calculation of prognostic coefficients F1 and F2 by the following formulas: F1=-31,42+1,49·a1-2,44·a2+0,2·а3+1,63·a4+0,62·а5+3,75·a6+1,8·а7-3,23·a8-0,8·а9-1,32·а10+3,26·а11+8,92·a12-2,0·a13+3,88·а14+1,79·a15+0,83·a16-2,78·a17; F2=-27,58+1,43·a1+3,31·а2+0,08·а3+3,05·а4-0,27·а5+2,69·а6+3,11·а7-6,47·a8-6,55·a9+1,99·а10+5,25·а11+7,07·a12-0,47·a13+0,13·a14+4,04·a15-1,0·a16-1,14·а17, correspondingly, where a1 - patient's age, a2 - studying either at the hospital or polyclinic, a3 - duration of stationary treatment (in days), a4 - unconscious period, a5 - terms of hospitalization since the moment of light close craniocerebral trauma, a6 - smoking, a7 - alcohol misuse, a8 - arterial hypertension, a9 - amnesia, a10 - close craniocerebral trauma in anamnesis, a11 - psychoemotional tension, a12 - meteolability, a13 - cervical osteochondrosis, a14 - ORL pathology, a15 - availability of perinatal trauma in anamnesis with pronounced hypertension-hydrocephalic syndrome, a16 - availability of paroxysmal activity, a17 - availability and manifestation value of dysfunction of diencephalic structures. At F1 ≥ F2 on should predict the development of remote aftereffects in young people due to evaluating premorbid background of a patients at the moment of trauma.

EFFECT: higher reliability of prediction.

2 ex, 1 tbl

FIELD: medicine; medical engineering.

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11 cl, 6 dwg

FIELD: medicine; medical engineering.

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EFFECT: wide range of functional applications.

15 cl, 10 dwg

FIELD: medicine, psychiatry.

SUBSTANCE: one should conduct EEG-testing to detect total value of the indices of spectral power or percentage spectral power of delta- and teta-rhythms due to spectrometric technique in frontal, parietal, central and temporal areas both before and during emotional-negative loading when visual emotionally negative stimuli are presented followed by their imaginary reproduction. In case of higher indices to visual stimuli being above 15% against the background one should diagnose epilepsy. The method enables to increase the number of diagnostic means, increase accuracy and objectivity in predicting epilepsy with polymorphic paroxysms at dissociation of clinical and EEG-values.

EFFECT: higher efficiency of diagnostics.

1 ex, 1 tbl

FIELD: medicine, neurophysiology.

SUBSTANCE: one should carry out EEG survey to detect spectrometrically the index of full range if alpha-rhythm both before and after therapy. Moreover, power index of full range of alpha-rhythm and the index of 9-10 Hz-strip's spectral power should be detected in occipital cerebral areas. One should calculate the value of the ratio of the index of 9-10 Hz-strip's spectral power to the index of full range of alpha-rhythm and at the increase of this value by 20% against the background it is possible to evaluate positive result of therapy. The method increases the number of diagnostic means applied in evaluating therapeutic efficiency in the field of neurophysiology.

EFFECT: higher efficiency of evaluation.

1 ex

FIELD: medicine, neurology.

SUBSTANCE: method involves carrying out the standard vascular and nootropic therapy. Diazepam is administrated under EEG control with the infusion rate that is calculated by the following formula: y = 0.0015x - 0.025 wherein y is the rate of diazepam administration, mg/h; x is an average EEG amplitude, mcV. Method provides enhancing the effectiveness of treatment of patients. Invention can be used for treatment of patients in critical severe period of ischemic insult.

EFFECT: enhanced effectiveness of treatment.

2 tbl, 1 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: method involves selecting signals showing patient consciousness level and following evoked auditory potentials as responses to repeating acoustic stimuli, applying autoregression model with exogenous input signal and calculating AAI index showing anesthesia depth next to it.

EFFECT: quick tracing of unconscious to conscious state and vice versa; high accuracy of measurements.

9 cl, 3 dwg

FIELD: medicine; experimental and medicinal physiology.

SUBSTANCE: device can be used for controlling changes in functional condition of central nervous system. Device has receiving electrodes, unit for reading electroencephalograms out, analog-to-digital converter and inductor. Low noise amplifier, narrow band filter linear array which can be program-tuned, sample and store unit, online memory, microcontroller provided with controlled permanent storage, liquid-crystal indicator provided with external control unit are introduced into device additionally. Receiving electrodes are fastened to top part of patient's head. Outputs of electrodes are connected with narrow band filters linear array through electroencephalograph. Output of linear array is connected with input of input unit which has output connected with input of analog-to-digital converter. First bus of analog-to-digital converter is connected with online storage. Recording/reading bus of microcontroller is connected with control input of input unit and its starting bus is connected with address input of online storage. Third control bus is connected with narrow band filters linear array. Second control bus is connected with liquid-crystal indicator. Output bus is connected with inductor. External control (keyboard) of first control bus is connected with microcontroller. Output of online storage is connected with data input of microcontroller through 12-digit second data bus. Efficiency of influence is improved due to getting specific directed influence being based onto general technological transparency of processing of human brain's signals and strictly specific influence based on the condition of better stimulation.

EFFECT: increased efficiency.

3 cl, 1 dwg, 1 tbl

FIELD: medicine, neurology, professional pathology.

SUBSTANCE: one should carry out either biochemical blood testing and electroencephalography or SMIL test, or ultrasound dopplerography of the main cranial arteries, rheoencephalography (REG) to detect the volume of cerebral circulation and hypercapnic loading and their digital values. Then it is necessary to calculate diagnostic coefficients F by the following formulas: Fb/e=6.3-0.16·a1+0.12·a2-1·a3+0.2·a4, or FSMIL=9.6+0.16·a5-0.11·a6-0.14·a7+0.07·a8, or Fhem=48.6-0.04·a9+0.15·a10+13.7·a11-0.02·a12+24.7·a13, where Fb/e -diagnostic coefficient for biochemical blood testings and EEG; FSMIL - diagnostic coefficient for SMIL test; Fhem - diagnostic coefficient for hemodynamic testing; 6.3; 9.6 and 48.6 - constants; a1 - the level of vitamin C in blood; a2 - δ-index by EEG; a3 - atherogenicity index; a4 - the level of α-proteides in blood; a5 - scale 3 value by SMIL; a6 - scale K value by SMIL; a7 - scale 5 value by SMIL; a8 - scale 7 value by SMIL; a9 - the level of volumetric cerebral circulation; a10 - the value of linear circulatory rate along total carotid artery, a11 - the value of resistive index along total carotid artery; a12 - the value for the tonicity of cerebral vessels at carrying out hypercapnic sampling by REG; a13 - the value for the intensity of cerebral circulation in frontal-mastoid deviation by REG. At F value being above the constant one should diagnose toxic encephalopathy, at F value being below the constant - discirculatory encephalopathy due to applying informative values.

EFFECT: higher accuracy of diagnostics.

6 ex, 1 tbl

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