JPS60227746A - Fertilization properly detection apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is applicable to artificial insemination for the purpose of breeding mammals.
The present invention relates to a fertilization time detection device that is used to predict and detect animal ovulation so as to increase the fertilization probability and determine the fertilization time.

Configuration of conventional examples and their problems Conventionally, the following methods have been used to predict and detect ovulation in order to know the appropriate time for fertilization in mammals.

1. BBT method (method based on basal body temperature) This method continuously measures basal body temperature and estimates ovulation from the cycle of high and low temperatures. Continuous measurement is required, and it is difficult to know when ovulation has occurred by a dip in the temperature graph, which results in a difference in measurement during the day.

2. Measurement of hormone concentration Among blood hormones, especially luteinizing hormone (H, H) related to the ovulation cycle, estrogen, etc.
,1,mu, (Radio immunoassay
), and since ovulation is induced by a surge of progesterone, the accuracy of ovulation detection is high, but the measurement requires specialized knowledge and the measuring device is expensive, making it less versatile. It's something you put on.

4. Method by observation of 0M crystals Among the properties of cervical mucus (cervical-m, hereinafter referred to as CM), we pay particular attention to the shape of crystals when CM is dried, and if fern-like crystals are formed, This is a method of estimating the ovulation period, but it requires many steps such as collecting samples, drying them, and observing them under a microscope, and is done in a professional manner.
It lacks versatility and is difficult to judge.

4. Method based on CM PH The ovulation period is detected based on the PH degree of GM.
This method estimates the ovulation period by measuring the pH level of CM based on the color change of Nitrodiene paper or Lidomus paper, and has drawbacks such as difficulty in determining the color change.

6. Other methods There are methods that focus on color changes caused by the properties of enzymes or pheromone substances contained in saliva, etc., and estimate ovulation using test strips. The drawback was that it was difficult to judge.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and makes it possible to display the time of ovulation in mammals and detect the appropriate time for fertilization with simple operations.

Structure of the Invention The fertilization time detection device of the present invention includes an electrical signal generating means, a means for applying the electrical signal to the measurement site, a plurality of level determining devices for determining the potential at both ends of the applying means, and a device for determining the potential at both ends. It has an AD conversion means, a data storage means, and a data comparison means for measuring the rate of change dv/at of the potential, and a display device corresponding to the level of the level determination device, and a display device for measuring the rate of change dv/dt. A display device corresponding to positive and negative signs is provided, and the ovulation cycle of the mammal is displayed on the display device, so that the appropriate time for fertilization can be detected.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the electrical configuration of the present invention, and 1 is an electrical signal generating means. 2 is means for applying the electric signal to the measurement site of the mammal, and is composed of a plurality of smooth electrodes plated with gold or the like.

Reference numeral 3 denotes a level determination device, which is composed of a plurality of voltage comparators.

4 is an AD conversion means for converting an electric signal into digital data, and 5 is a storage means for the daegoo.

Reference numeral 6 denotes a data comparison means for comparing the current data obtained during measurement with the stored data obtained during the previous measurement. Further, 7 is an upper limiter of data, and only data below a value set by the limiter is input to the data storage means.

Note that each block of s4+5+6 and 7 is constituted by a 1-chip microcomputer.

8 is a display device corresponding to each level of the level determination device; 9
is a plus/minus sign display device driven by the output of the data comparison means, and from the stored previous measurement data,
If the current data is large, a plus sign is displayed; if it is small, a minus sign is displayed.

Reference numeral 10 denotes an equivalent resistance of a measurement site, 11 a DC power supply composed of a dry cell or the like, 12 an operation switch, and 13 a booster such as an inverter.

Figure 2 is a, 5. 6.7 shows a flowchart of a program of a microcomputer that constitutes the block No. 6.7.

The current data at the time of measurement -vx is compared with the stored previous measurement data vm, and if vx>vm.

A positive sign is displayed, and if s vx > vm, a negative sign is displayed.

Also, compare vx and upper limiter vL.

Vz) If not vL, store vx. By doing so, the measurement is performed without bringing the voltage application means into contact with the part to be measured, and it is possible to prevent an abnormally large value of the equivalent resistance from being stored.

FIG. 3 is a partial sectional view of the electric signal applying means 2. FIG. Third
In the figure, 20ij is a cylindrical detection portion, and 21 is a holding member for an electrode 22 screwed onto the tip. The electrode 22 is made of a material with good electrical conductivity, such as brass, coated with Ni agate and further plated with gold.The head is made smoothly in the shape of a semicircle, and this head is placed on the area to be measured. come into contact with i, this electrode 22 is fixed to the holding member 21 with a screw 23,
Electrode plate 24. It is connected to an electric circuit via a lead wire 26.

FIG. 4 is a perspective view of the main body of the fertilization timeliness detection device according to one embodiment of the present invention. Reference numeral 26 denotes a cylindrical detection section, and an electric signal applying means 2 is provided at the tip.

27 is a main body that houses electrical circuits, batteries, etc., and is small enough to be held in your hand.

28 is an operating section of the operation switch 12.

29 (This is a group of LEDs constituting the display device 7, and one of these is turned on by the level determination device. 3o is a notation corresponding to the ovulation cycle provided corresponding to each LICD.

31.32 is a display device corresponding to the plus/minus sign;
represents the negative sign of dv/dt and %32 represents the positive sign of dv/dt, respectively.

To explain the operation of the above configuration, the properties of the secreted CM change depending on the ovulation cycle of the mammal, and the equivalent resistance between the electrodes, which is the means for applying the electric signal, changes.

It has been reported that the situation of this change is generally as shown in Figure 5, and ovulation is the point where the electrical resistance value decreases the most in Figure 5, that is, the point on day 0 on the X axis in Figure 6. It is said that

This change occurs because the CM acts like a plug in the upper organs against bacteria, and during the ovulation period, water and solid components such as sodium chloride increase to increase sperm receptivity. It is explained that this is because.

In response to changes in the properties of the CM as described above, the voltage across the electrode, which is the means for applying the electrical signal, changes, and as a result, the appropriate time for fertilization can be indicated by 1 on the LED. It will become possible.

Also, since the %dv/dt signs are displayed at the same time, it becomes clear whether the current state is towards ovulation or past ovulation, making it possible to accurately detect the appropriate time for fertilization. It is.

Incidentally, as the electric signal, in order to prevent polarization due to the current between the electrodes, an alternating current with symmetrical positive and negative waveforms, such as a square wave or a sine wave, is used.

Effects of the Invention As described above, the fertilization timeliness detection device of the present invention compares and measures the electric customization of CM using a highly accurate level judgment device, and at the same time displays the dv/at code to detect the fertilization time toward the ovulation day. Since it is also possible to know whether the fertilization is in progress or has passed, it becomes possible to accurately detect the appropriate time for fertilization.

Furthermore, since the operation is easy and the display is not subjective, there is little risk of misjudgment.

By using this device, the probability of pregnancy during artificial insemination can be increased, and its effects are significant.

2 is a flowchart of the program of the microcomputer that constitutes the main part of the present invention, Fig. 3 is a sectional view of the main part of the electrode section, and Fig. 4 is a diagram of the device. The front view of the main body, Figure 6 shows the ovulation cycle of mammals and C
It is a characteristic diagram showing the electrical resistance value of M.

1... Electric signal generation means, 2... Electric signal application means, 3... Level determination device, 4
......AI) conversion means, 6...data storage means, 6...data comparison means, 8,9.
...Display device.

Name of agent: Patent attorney Toshio Nakao, 1st person, 2nd person
Figure 3 Figure 4

Claims (1)

[Claims] A means for generating an electrical signal, a means for applying an electrical signal to a measurement site, a plurality of level determination devices for determining the potential at both ends of the applying means, and a device for measuring the rate of change dv/at of the potential at both ends. It has a change means, a data storage means, and a data comparison means, a display device corresponding to the level of the level determination device, and a display device corresponding to the positive or negative sign of the rate of change dv / dt, A fertilization timely detection device which detects the ovulation cycle of a person using the display device.