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WO2019045593A1 - Procédé et dispositif de mesure de l'activité des glandes sudoripares sur le bout des doigts - Google Patents

Procédé et dispositif de mesure de l'activité des glandes sudoripares sur le bout des doigts Download PDF

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Publication number
WO2019045593A1
WO2019045593A1 PCT/RU2017/000804 RU2017000804W WO2019045593A1 WO 2019045593 A1 WO2019045593 A1 WO 2019045593A1 RU 2017000804 W RU2017000804 W RU 2017000804W WO 2019045593 A1 WO2019045593 A1 WO 2019045593A1
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WO
WIPO (PCT)
Prior art keywords
plate
control unit
fingertip
camera
transparent
Prior art date
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Ceased
Application number
PCT/RU2017/000804
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English (en)
Russian (ru)
Inventor
Дмитрий Игоревич РОСТКОВСКИЙ
Андрей Евгеньевич ТРУШИН
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Individual
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Individual
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Filing date
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Publication of WO2019045593A1 publication Critical patent/WO2019045593A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves

Definitions

  • the group of inventions relates to the field of physics and can be used in physiology and medicine to determine the psychophysical state of a person on the basis of measuring the activity of the sweat glands on the fingertip, in particular to a stress tester.
  • perspiration is caused not only by an increase in body temperature, but also by other factors, among which the emotional state plays the main role.
  • the sweat glands on the hands and feet mainly respond to emotional stimuli.
  • Emotional stress, stress almost instantly changes the nature of the work of the sweat glands, especially on the feet, palms and armpits, leading to increased sweating.
  • Uncontrolled sweating is a symptom of anxiety, tension, emotional overload, and fear.
  • Most city dwellers know what stress is and its negative impact on daily life, but they don’t know how to measure it. In this regard, there is a need for methods and devices for measuring stress.
  • a device for determining the state of a biological object in a pulsed electric field of high intensity, including an electric pulse generator, a transparent plate equipped with an electrode made in the form of an optically transparent conductive material applied onto it, a lens, an optoelectronic digital converter, a computer and an information display unit, the generator output connected to the electrode, and the computer output connected to the input of the information presentation unit (USD NS99947, ⁇ 61 ⁇ 5 / 05, 10.12.2010)
  • a method for measuring the electrical conductivity of an object's surface for diagnosing the physical state of an object is known, based on taking a glow of a gas discharge around an object in a high-frequency field and including a step-by-step increase in voltage applied to the electrode (France Ns2803661, A61 B5 / 05, 13.07.2001).
  • the closest analogue a device and method for studying biological structures for the purpose of diagnosis has been adopted.
  • the device contains two transparent plates between which a dielectric is placed, electrically conductive sputtering is applied on the plates, a chamber connected to a computer is placed opposite the plates, and the plates are connected to a high-frequency generator.
  • a biological object is applied to the outer plate, voltage is applied to the plates, the resulting glow is recorded by the camera and recorded in the computer's memory, where the image is processed and analyzed (Germany N23707338, A61 B5 / 05, 10/15/1987).
  • the disadvantage of the closest analogue is the lack of reliability of the device.
  • the object under study (fingertip) is pressed directly onto a glass plate with electrically conductive spraying and as a result of the shooting, an image of the gas discharge is obtained only in a narrow space on the border where the finger touches the glass. Further, only the resulting annular luminescence is subjected to analysis, the shape and topography of which depends on many factors: the force of pressure, the angle of pressing and rotation of the finger. Taking into account the fact that these factors are normalized with great difficulty, and the scatter of readings is large, the results of the readings are not accurate. Also for the measurement a prerequisite is to completely darken the space in which there is a fingertip when shooting. In the case of the penetration of external light into the place where the discharge occurs, due to the weakness (dimness) of the gas discharge within the permissible current values, external light is a serious obstacle to obtaining reliable images.
  • the well-known solution does not take into account the influence of external factors on the readings of the device, in particular, temperature and humidity, which have a great influence on the resulting image.
  • an expert is usually needed who understands the operation of the device.
  • the task of the group of inventions is to eliminate these drawbacks, to create an autonomous, easy-to-use device for everyday use that does not require any special knowledge or prior training, to quickly obtain measurement results, to increase the reliability of readings due to the fact that they receive an image of the entire finger pad, and not just contours, take into account the influence of humidity and air temperature, increasing the functional capabilities of the device and expanding Arsenal of technical means.
  • the method allows you to take pictures in normal daylight or room lighting without darkening your fingers.
  • the technical result of the patented solution is to improve the accuracy of the device readings and the measurement results of the activity of the sweat glands on the fingertip, the ability to measure without the use of light shields and the absence of a “human factor” as an operator or expert.
  • the claimed technical result is achieved in a device for measuring the activity of the sweat glands on the finger pad, which contains glass plates parallel to each other with a gap filled with a gas dielectric, a camera whose lens is directed onto the plates, and a control unit with an energy source, while the plate in contact with the pad of the finger, made opaque, and the plate located between the opaque plate and the camera, made transparent with conductive coating and connected to the control unit.
  • the device with two glass plates arranged parallel to each other with a gap filled with a gas dielectric, where the plate in contact with the pad of the finger is made opaque and without conductive layers, and the plate between the opaque plate and the camera is made transparent with conductive spraying surface gas discharge occurs between two glass plates, and not between the glass plate and the fingertip.
  • the fixation and analysis of the glow of the entire fingertip is provided, and the measurement results are not affected by the force of pressure, the angle of pressing and rotation of the finger.
  • Filling the gap with a gas dielectric enables the formation of a gas discharge between a transparent plate with conductive spraying and an opaque plate in contact with the pad of the finger.
  • conductive sputtering is performed on the surface of the transparent plate opposite to the side facing the opaque plate, or conductive sputtering is performed on the surface of the transparent plate facing the opaque plate.
  • the camera is connected to the control unit, and the control unit is made with temperature and humidity sensors, which allows to take into account the influence of external factors on the measurement results and further improve the measurement accuracy of the activity of the sweat glands on the fingertip.
  • control unit is made with a USB port for connecting to a computer or information output means, for example, a display for displaying measurement results.
  • the control unit is configured to generate high-voltage pulses and adjust the amount of voltage applied to the transparent plate.
  • air, inert or active gases for example, air, nitrogen, carbon dioxide, gas, helium, argon, neon, are used as gas dielectric.
  • the technical result is also achieved due to the method of measuring the activity of the sweat glands on the finger pad using a device for measuring the activity of the sweat glands on the finger pad, which includes applying voltage to a transparent plate with conductive spraying, pressing the finger pad to the opaque plate of the device and fixing the image with a camera.
  • the steps of the method are repeated with increasing voltage, by increasing the key opening time of the high-voltage pulse generation circuit in the control unit with a step of 2-5 ⁇ s, a series of images are obtained, which reflect the activity levels of the sweat glands with high accuracy.
  • the voltage value is regulated by opening-closing the key in the high-voltage pulse formation circuit.
  • the fixed image can be processed taking into account the readings of the temperature and humidity sensor, which leads to an additional increase in the measurement accuracy of the activity of the sweat glands on the pad of the finger.
  • Figure 1 shows a photograph of a fingertip pad with drops of sweat under a microscope.
  • figure 2 is a structural diagram of the device.
  • figure 4 the image of the glow of the gas discharge, obtained in a known manner using a known device.
  • figure 5 fragments of images of the glow of the gas discharge, obtained by increasing the voltage according to the claimed method.
  • the main factor determining the electrical properties of the skin is perspiration.
  • the outer layer of the skin - the epidermis - is a good neutral dielectric, while sweat is a good electrolytic conductor with low ohmic resistance, electrically connecting the surface of the skin to the inside of the body.
  • the total electrical resistance of the skin as a whole is determined by the intensity of perspiration, as a result of which the measurement of the electrical properties of the skin is a method for evaluating the activity of sweat glands.
  • the sweat ducts are filled to a certain average level, which provides normal skin hydration and cooling of the body.
  • additional volumes of sweat fluid are produced and thrown onto the skin surface, changing the electrical properties and topology of the latter.
  • the relationship between the activity of the sweat glands and the psychophysiology of a person, on the one hand, and the electrical properties of the skin, on the other, makes it possible to measure (measure) the psychophysiological state of a person by measuring the electrical characteristics of the skin: when the emotional state of a person changes, the electrical properties of the skin change.
  • Gas discharge a set of processes that occur when an electric current flows through a substance that is in a gaseous state.
  • the discharge occurs in the gaseous substance between the electrodes at large (more than 30 kV / cm at atmospheric pressure) potential differences (voltages).
  • a gas discharge in a gaseous substance emits visible light.
  • the electrodes, between which the discharge occurs, can serve any, conductive, objects.
  • a device is used to measure the activity of the sweat glands on the fingertip, which in the particular case of implementation according to FIG. 2 comprises a housing 1 with an annular rim 2.
  • the housing can be made of plastic or conical or cylindrical.
  • an annular mandrel 2 parallel to each other, are mounted one above the other glass plates 3 and 4, separated by a gap filled with a dielectric gaseous substance, for example, air, any active or inert gas.
  • a dielectric gaseous substance for example, air, any active or inert gas.
  • the glass plate 3 On the outer side of the mandrel 2 is fixed opaque, not transmitting light, the glass plate 3, in contact with the pad of the finger.
  • the discharge takes place in a volume that is completely darkened by opaque, for example, black glass, and the finger pad and the place of its contact with the glass do not require additional external darkening.
  • transparent glass plate 4 On the inner side of the mandrel 2 is fixed transparent glass plate 4, connected to the control unit.
  • the control unit (not shown in the figures) can be connected to an external power source or contain a battery.
  • One of the surfaces of the transparent plate 4, opposite to the side facing the opaque plate, 3 or facing the opaque plate, has a conductive coating with a resistance of 10 - 100 Ohm / cm.
  • Glass plates can be made of glass brand VK7.
  • Transparent plate 4 with a conductive coating connected to the secondary winding a high-voltage transformer, the primary winding of which is powered by the high-voltage impulse generation circuit of the control unit.
  • a camera 5 (digital) is installed in the housing, the lens of which is aimed at the glass plates 3 and 4.
  • the control unit contains a board with a high-voltage pulse shaping circuit and a transformer, the primary winding of which is powered by a high-voltage pulse shaping circuit.
  • the camera is connected to the control unit, and the control unit is made with temperature and humidity sensors (not shown in the figures), which allows to take into account the influence of external factors on the measurement results and further improve the accuracy of measurements of the activity of the sweat glands on the fingertip.
  • control unit is made with a USB port for connecting to a computer or information output means, for example, a display for displaying measurement results.
  • Camera 5 can be digital and / or for black and white shooting.
  • a pulsed current (voltage) is supplied to the conductive layer of the glass plate, the current value is regulated by the key opening time.
  • the key opens for a time of 15 ⁇ s - 40 ⁇ s with a frequency of 1 kHz, the duration of each series is 30-60 ms.
  • the finger pad is pressed against the surface of the opaque glass of the device for measuring the activity of the sweat glands on the finger pad.
  • the surface of the fingertip is a dielectric, on which the “contact pads” are located — pores filled with conducting fluid with ducts extending to the surface of the skin, it is on them that a gas discharge forms and a glow caused by it occurs.
  • the resulting optical image can be transmitted to a control unit, such as a microcontroller based on the STM32F446 MC, which also receives information from temperature and humidity sensors.
  • the control unit processes the information according to the programmed algorithms and transfers the image as an array of data to the processing computer, for example, under the control of the general-purpose Windows or Linux operating systems, the USB bus is used for transmission.
  • Example 1 Used the claimed device.
  • a gas discharge occurs between two glass plates 3 and 4, located one above the other and separated by an air gap, in the area directly below the entire fingertip pad.
  • the force of pressure, the angle of pressing and rotation of the finger do not affect the gas discharge and, consequently, the analyzed image.
  • the image obtained from the digital camera 5 is shown in FIG. 3.
  • the area of the fingertip is analyzed, highlighted by a frame, which is completely pressed against the glass.
  • the structure of the resulting image reflects the activity of the sweat glands. This information is the input data for further analysis. As discussed above, the image displays the psycho-physiological state of a person at the time of shooting. Topographic image analysis is performed using software.
  • Example 2 Used a device in which the voltage is applied to a glass plate with a conductive layer in contact with the pad of the finger. The gas discharge is formed along the border, where the finger pad stops contacting the glass surface in a narrow border gap between the finger and the glass and is fixed to the camera, the lens of which is directed to the plates.
  • the figure 4 presents the image obtained from the camera and analyzed when using the specified device.
  • the claimed device and method for measuring the activity of the sweat glands on the finger pad can improve the accuracy of the device readings and the results of measuring the activity of the sweat glands on the finger pad.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

Le groupe d'inventions concerne un procédé et un dispositif de mesure de l'activité des glandes sudoripares sur le bout des doigts. Le dispositif de l'invention comprend des plaques en verres disposées parallèles avec un interstice rempli d'un diélectrique gazeux, une caméra dont l'objectif regarde les plaques et une unité de commande avec une source d'énergie. La plaque en contact avec le bout du doigt n'est pas transparente. La plaque disposée entre la plaque transparente et la caméra est transparente et possède un revêtement pulvérisé et est connecté à un bloc de commande. Le procédé consiste à alimenter en tension électrique la plaque transparente, presser le bout du doigt contre la plaque extérieure non transparente du dispositif et enregistrer l'image avec une caméra. Le groupe d'inventions permet d'améliorer la précision des indications du dispositif et des résultats de l'activité des glandes sudoripares sur le bout des doigts.
PCT/RU2017/000804 2017-09-04 2017-10-31 Procédé et dispositif de mesure de l'activité des glandes sudoripares sur le bout des doigts Ceased WO2019045593A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2017131022 2017-09-04
RU2017131022A RU2656558C1 (ru) 2017-09-04 2017-09-04 Устройство и способ для измерения активности работы потовых желез на подушечке пальца

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Publication Number Publication Date
WO2019045593A1 true WO2019045593A1 (fr) 2019-03-07

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RU (1) RU2656558C1 (fr)
WO (1) WO2019045593A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111157514A (zh) * 2019-12-26 2020-05-15 新绎健康科技有限公司 基于gdv的能量检测装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2072791C1 (ru) * 1991-11-21 1997-02-10 Ростовский научно-исследовательский институт акушерства и педиатрии Устройство для регистрации газоразрядного свечения биологического объекта
RU67839U1 (ru) * 2007-06-07 2007-11-10 Эдвард Владимирович Крыжановский Устройство для определения состояния человека
US20100103252A1 (en) * 2007-03-16 2010-04-29 Marina Shaduri Device to detect malignant processes in living organisms

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707338A1 (de) * 1987-03-07 1987-10-15 Strzempa Depre Michael Dr Verfahren zur physikalisch begruendeten auswertung der beim kirlian-effekt auftretenden leuchterscheinungen
SU1664286A1 (ru) * 1989-07-11 1991-07-23 Центр Научно-Технического Творчества Молодежи "Квант" Устройство дл регистрации газоразр дного свечени биологических объектов
US9810704B2 (en) * 2013-02-18 2017-11-07 Theranos, Inc. Systems and methods for multi-analysis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2072791C1 (ru) * 1991-11-21 1997-02-10 Ростовский научно-исследовательский институт акушерства и педиатрии Устройство для регистрации газоразрядного свечения биологического объекта
US20100103252A1 (en) * 2007-03-16 2010-04-29 Marina Shaduri Device to detect malignant processes in living organisms
RU67839U1 (ru) * 2007-06-07 2007-11-10 Эдвард Владимирович Крыжановский Устройство для определения состояния человека

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111157514A (zh) * 2019-12-26 2020-05-15 新绎健康科技有限公司 基于gdv的能量检测装置

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