RU2195863C1 - Device for determining ovulation period - Google Patents

Abstract

FIELD: medical engineering. SUBSTANCE: device has transducer having electrodes, power supply source, signal-processing circuit and indication unit. The transducer is used for creating non-uniform electric field in mucous secret under study. The non-uniform electric field is created by the electrodes as a result of contact surface difference. The signal processing circuit has unit for selecting useful signal and unit for transforming the useful signal into digital code. The indication unit is designed as digital tableau. The device creates conductivity in mucous secret reflecting state of fine protein amino acid structure. EFFECT: high accuracy of the method. 1 dwg

Description

 The invention relates to medicine and is intended to determine the moment of ovulation and analysis of the state of the reproductive system of female mammals and can be used to plan pregnancy or take preventive measures against unwanted pregnancy.

 A device for determining the period of ovulation, containing two electrodes and a measuring device for determining the electrical parameters of vaginal discharge. The electrodes are made of various metals (see RF 2230328, class A 61 B 10/00, 12.20.1974).

 However, the known device produces voltage and current parameters that depend only on the oxidizing or reducing properties of the vaginal discharge, and does not take into account other properties of the discharge to reliably determine the period of ovulation.

 A device for determining the period of ovulation, containing two electrodes fixed in a holder of a dielectric and connected to a measuring device. The electrodes are made of materials that are heterogeneous in chemical composition. The electrodes are brought into contact with saliva or cervical mucus and the potential difference arising between them is measured (see RU 2128943 C1, class A 61 B 5/05, 04/20/1999).

 In this device, the difference of the redox potentials between the electrodes is measured.

 The objective of the invention is to create a device in which the conductivity in the mucous secretions is informative to the state of the fine structure of the amino acids of the protein.

 The technical result of the invention is to increase the accuracy of determining the moment of ovulation.

 To do this, in the device for determining ovulation, which includes a sensor with electrodes, a power source, a signal processing circuit and an indicator, the electrodes have different contact surface areas to create an inhomogeneous electric field, the signal processing circuit contains a useful signal extraction unit and a conversion unit useful signal in a digital code, and the indicator is a digital display.

 The invention is illustrated in the drawing, which shows a diagram of a device.

 The device consists of a sensor 1 with electrodes, a signal processing circuit 2, an indicator 3, and a power supply 4.

 Sensor 1 is designed to create an inhomogeneous electric field in the studied mucous secretions (CB).

 An inhomogeneous electric field is created by electrodes having contact surfaces that are different from each other.

 The signal processing circuit 2 is intended for receiving the primary signal from the sensor, its subsequent processing and transmitting the received information to the indicator 3. The signal processing circuit 2 contains a useful signal extraction unit and a useful signal to digital conversion unit.

 Indicator 3 is designed to display information and is a digital display.

 The device operates as follows.

 On the working surface of the electrodes of the sensor 1, mucous secretions are applied. Then, a constant voltage is applied to the electrodes, creating an inhomogeneous electric field in the mucous secretions due to the different contact surface area of the electrodes. An inhomogeneous electric field creates polar conduction in mucous secretions. The magnitude of the polar conductivity of mucous secretions is informative to the state of the fine structure of the amino acids of the protein. The maximum polar conductivity in the mucous secretions corresponds to the maximum concentration of estradiol in the blood, which, in accordance with the Dananov equilibrium (Bladergen. Physical chemistry in medicine and biology. - M.: Foreign Literature, 1951, pp. 251-335) changes the fine structure of protein amino acids in mucous secretions (Bladergen. Physical chemistry in medicine and biology. - M.: Foreign literature, 1951, p. 461).

 The signal from the sensor 1, proportional to the conductivity of the mucous substances, is fed to the signal processing circuit 2. The signal processing circuitry extracts a useful signal from one of its blocks and converts it using another block into a digital code.

 The digital code is fed to the indicator. Information is displayed on a digital display.

 In the case of determining the moment of ovulation in women, measurements are taken at the same time of the day, starting from the fifth day of the menstrual cycle, with a 28-day cycle.

 The beginning of the moment of ovulation is determined by the maximum value of the conductivity of the mucous secretions in an inhomogeneous electric field.

 The power supply provides power to the device 4.5 V.

 The device allows you to more accurately determine the period of ovulation due to the creation of polar conductivity in mucous secretions, the value of which is informative to the state of the fine structure of the protein.

 The device is easy to operate.

Claims (1)

 A device for determining the ovulation period, including a sensor with electrodes, a power source, a signal processing circuit and an indicator, characterized in that the electrodes have different contact surfaces to create an inhomogeneous electric field, the signal processing circuit contains a useful signal extraction unit and a conversion unit useful signal in a digital code, and the indicator is a digital display.