JPS61137543A - Apparatus for foreknowing and detecting ovulation - 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 Field of Industrial Application The present invention relates to a predictive detection device for ovulation in mammals, which is used in the field of breeding and the like, particularly in order to increase the probability of pregnancy when performing artificial insemination. .

Conventional technology In addition to continuous measurement of basal body temperature, conventional methods for predicting and detecting ovulation include, for example, focusing on changes in the chemical properties of secretions that occur before ovulation and detecting their components. Methods of analysis using gas chromatography and methods of obtaining instructions through chemical reactions using reagents have been proposed.

However, the analysis method using gas chromatography requires an apparatus that requires complicated procedures, and as a result, it has the disadvantage that only experts can operate it. Furthermore, the device itself is expensive.

Furthermore, the method of obtaining instructions through chemical reactions has the disadvantage that it is difficult to handle, and the instructions are difficult to judge because they are determined by color changes and the like.

Therefore, in order to solve the above problems, the present inventors
We have developed an ovulation prediction and detection device as shown in FIGS. 2 and 3 a and b. That is, in FIG. 2, 1 is an AC generator consisting of an astable multivibrator, 1 a positive/negative pulse amplifier, etc., and 2 is a plurality of AC generators inserted into a detected part of a mammal and for applying AC to the detected part. electrodes; 3 is a level determination device composed of a plurality of voltage comparators;
Reference numeral 4 denotes a display device, and this display device 4 is configured to connect a light emitting diode or the like to the level determining device 3 and display information according to each level.

Reference numeral 5 denotes a power supply battery, 6 a booster for boosting the voltage to a required voltage using an inverter circuit, etc., and 7 a voltage comparator connected to the power supply battery 5, which is used to check the voltage drop of the power supply battery 5. .

Figures 3a and 3b show the structure of the main body of this device.
is a rod-shaped detection section made of a flexible material such as polyethylene or hard polyethylene, and a probe 9 is attached to this rod-shaped detection section 8 by screwing. At the tip of this probe 9, there is an electrode 2 that applies alternating current to the detected part.
is fixed. Reference numeral 10 denotes a lead wire for connecting the electrode 2 and an electric circuit, and reference numeral 11 denotes an electrode cover that covers the plurality of electrodes 2 so that the side surfaces of the plurality of electrodes 2 face each other and are exposed. Note that the electrode 21d protrudes from the end surface of the probe 9 of the rod-shaped detection portion 8 by α5 to 4 m.

In general, it is known that the acid content in the vaginal secretions of many female mammals increases before ovulation; for example, before ovulation, large amounts of acids such as lactic acid and acetic acid are secreted. , the electrical resistance of the lunar rainbow secretion changes. Therefore, when using this device, first insert the rod-shaped detection part 8 into the Wakkanai of the mammal you want to investigate, and turn on the switch (not shown). , the positive and negative pulses generated by the AC generating means 1 are applied to the electrode 2 attached to the probe 9 of the rod-shaped detection part 8, and when the electrode 2 comes into contact with the storage wall, the potential is increased due to the equivalent DC resistance of the detected part. Occur. This potential is then applied to the level determination device 3, and the light emitting diode constituting the display device 4 emits light according to the output level, and ovulation can be predicted and detected based on this level.

Problems to be Solved by the Invention However, in the above conventional configuration, the plurality of electrodes 2 are covered with the electrode cover 11 so that the side portions of the plurality of electrodes 2 face each other and are exposed. If the cleaning of the electrode 2 is insufficient, foreign matter or solidified mucus tends to accumulate at the base of the protrusion containing the electrode 2, and if the foreign matter adheres to this part, the exposed area of the electrode 2 becomes narrow. Therefore, there was a problem in that an error occurred in the measured value of electrical conductivity.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an ovulation prediction and detection device with good measurement accuracy.

Means for Solving the Problems In order to solve the above problems, the present invention includes an electrode cover that covers a plurality of electrodes so that side portions of the plurality of electrodes held by a probe are exposed facing each other. However, an electrically insulating part of a constant width is provided at the mounting base of the electrode.

Effect According to the above configuration, since the electrically insulating part of a certain width is fully provided at the mounting base of the electrode, even if foreign objects or solidified mucus try to adhere to the mounting base of the electrode, these will be prevented by a certain amount. Since it will adhere to the electrically insulating portion of the width and therefore will not have a negative effect on the exposed area of the electrode, the occurrence of measurement errors due to insufficient cleaning of the electrode will be extremely reduced.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1a and 1b. In FIGS. 1a and 1b, parts that are the same as those in the apparatus shown in FIGS. 3a and 3b are given the same numbers, and only the different points will be explained. That is, in FIGS. 1a and 1b, reference numeral 12 denotes a probe attached to the rod-shaped detection part 8 by screwing, and this probe 12 is made of a synthetic resin having electrical insulation properties and is located at its tip. holds a plurality of electrodes 2. 13 is an electrode cover that covers a plurality of electrodes 2 so that side surfaces of the electrodes 2 face each other and are exposed; 14 is an electrically insulating part of a constant width provided at the mounting base of the electrode 2; The electrically insulating portion 14 is formed integrally with the probe 12.

In the above configuration, since the side parts of the plurality of electrodes 2 are exposed facing each other, when the probe 12 of the rod-shaped detection part 8 is inserted into the vagina of a mammal such as a pig, the mucus in the vagina is captured between the electrodes 2, and as a result, the electrodes 2 can accurately measure only the resistance of mucus. Furthermore, since an electrically insulating part 14 of a certain width is provided at the mounting base of the electrode 2, foreign matter and solidified mucus will adhere to this electrically insulating part 14, and as a result, the electrode 2 will be exposed. Since the area is no longer adversely affected, the occurrence of measurement errors due to insufficient cleaning of the electrode 2 is extremely reduced.

Effects of the Invention As described above, the present invention includes an electrode cover that covers a plurality of electrodes such that the side portions of the plurality of electrodes held by the probe are exposed facing each other, and the mounting base of the electrode is Since the electrode is provided with an electrically insulating part of a certain width, if foreign objects or solidified mucus try to adhere to the base of the electrode, they will adhere to the electrically insulating part of a certain width. As a result, there is no adverse effect on the exposed area of the electrodes, so the occurrence of measurement errors due to insufficient cleaning of the electrodes is extremely reduced, and measurement accuracy can be improved.

[Brief explanation of the drawing]

FIG. 1 shows the main parts of an ovulation prediction and detection device showing an embodiment of the present invention, in which a is a top view, b is a sectional view, and FIG. 2 is an ovulation prediction device developed by the present inventors. The block diagram of the detection device, FIG. 3, shows the main parts of the device, in which a is a top view and b is a sectional view. 1... AC generator, 2... Electrode, 3
... Level determination device, 4 ... Display device, 12 ... Probe, 13 ... Electrode cover, 14 ... Electrical insulation part. Name of agent: Patent attorney Toshio Nakao and one other person

Claims (1)

[Claims] an alternating current generator, a plurality of electrodes inserted into a detection target part of a mammal and applying alternating current to the detection target part, a probe holding the electrodes, a level determination device connected to the electrodes, and a level determination device. a display device operated by the device;
and an electrode cover that covers the plurality of electrodes so that the side surfaces of the plurality of electrodes are exposed facing each other, and an electrically insulating part of a certain width is provided at the mounting base of the electrode, the ovulation prediction is provided. Detection device.