JPH05115451A - Helmet for measuring brain wave - Google Patents

Abstract

PURPOSE:To provide the helmet for measuring brain waves which measures the brain waves in a working space requiring the wearing of the helmet and with which the correct result of a measurement is obtd. without receiving the influence of the noise by vibrations and which does not entail a pain. CONSTITUTION:An air bag part 5 is provided on the inner side of the helmet 1. Common holes are bored in the helmet 1 and the air bag part 5 and electrode parts 3 are fitted therein. Such helmet is worn and the air quantity 6 of the air bag is adjusted, by which the head skin 7 and the electrodes are brought into contact with each other via an electrolyte injected from the holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brain wave measuring helmet, and more particularly to a helmet for measuring movements during movement.

[0002]

2. Description of the Related Art Conventionally, a cap for the purpose of general electroencephalography or measurement of an electroencephalogram of a person is already on the market, and such a cap has electrodes sewn in advance at predetermined positions to measure the cap. Cover the head of the target human body and secure it with the body harness.

Then, by injecting an electrolyte jelly into the electrode using a syringe, the electrical connection between the scalp and the electrode is completed, and the electroencephalogram is measured by connecting this to an electroencephalograph. ..

[0004]

Such a brain wave measuring cap is used to measure to a worker in a factory how an optimal space can be provided by measuring the brain wave, or a brain wave of a car driver. In order to measure the driving condition and the environmental condition of the vehicle compartment, it is necessary to further wear a helmet on the cap that covers the worker and the driver.

When the electroencephalogram is measured in such a state, since the helmet is worn on the cap, the contact voltage (usually about 50 μV) due to the contact between the electrode and the helmet and the vibration being applied from the helmet to the electrode. There is a problem that noise is generated due to the change and the measurement result is erroneous.

On the other hand, Japanese Patent Laid-Open No. 61-249436 discloses a technique for improving the influence of the ambient noise on the electrical wiring connected from the electrodes to the electroencephalograph. Wearing a helmet is not a prerequisite, and when wearing a helmet, there is a problem in that the vibration of the helmet causes a pain of the electrodes during wearing.

Therefore, the present invention is a helmet for measuring an electroencephalogram for measuring an electroencephalogram in a work space where a helmet must be worn, and it is possible to obtain a correct measurement result that is not affected by noise due to vibration and to avoid causing pain. The purpose is to

[0008]

In order to achieve the above object, in the brain wave measuring helmet according to the present invention, a helmet provided with a plurality of holes, and a helmet hole provided inside the helmet An air bag portion having holes so as to match with each other is fitted into at least the hole of the air bag portion out of the hole of the helmet and the hole of the air bag portion aligned with each other, and the air amount of the air bag portion is adjusted. Accordingly, the plurality of electrode portions that come into contact with the scalp through the electrolyte injected from the holes are provided.

Further, according to the present invention, a cable which is connected to each electrode portion and which transmits a brain wave measurement value from the scalp can be passed through the airbag portion.

Further, in the present invention, the electrode portion can be composed of a helmet side portion, a scalp side portion and a flexible connecting portion between them.

Further, according to the present invention, the helmet and the airbag portion can be bonded together.

[0012]

In the present invention, the hole provided in the helmet and the hole provided in the airbag section are aligned with each other, and the electrode section is fitted into at least the hole side of the airbag section.

Then, a helmet like this is put on the head,
Inject air from the air bag part and crimp the air bag part and the electrode to the scalp. Next, by injecting an electrolyte into the electrode through the hole of the helmet as in the conventional case, the electrode portion and the scalp are connected to complete the electrode mounting.

In this way, by injecting air into the air bag portion, the electrode portion fits to the scalp regardless of the shape and size of the head, and brain waves can be measured without being affected by the vibration and noise of the helmet. ..

Further, in the present invention, the cable connected to the electrode portion and transmitting the brain wave measurement value from the scalp is passed through the airbag, so that the vibration due to the helmet is not transmitted to the cable inside the airbag. It is possible,
The effect can be diminished.

Further, by composing the electrode portion with the helmet side portion, the scalp side portion, and the flexible connecting portion between them, the positioning of the hole of the helmet and the hole of the airbag portion can be facilitated by the electrode portion. It can be carried out.

Further, if the helmet and the air bag are adhered to each other, they can be easily attached.

[0018]

1 is a schematic view of a brain wave measuring helmet according to the present invention, in which a head helmet 1 of a target human body is mounted, and a plurality of holes are provided in advance in the helmet. Has been.

As shown in FIG. 2, the electrode portion 3 is fitted into the holes provided in the helmet 1 and the airbag portion 5.
The electrode portion 3 is composed of a helmet side portion 3A, a scalp side portion 3B, and a flexible portion 3C connecting these portions 3A and 3B, and the electrode plate 3D is, for example, a scalp side portion 3B. It is provided and the cable 4 is connected from this electrode plate 3D. The portion 3A of the electrode portion 3 is not always necessary, but the portions 3A, 3B, 3C
By using the electrode part 3 made of, it becomes easy to align the holes provided in the helmet 1 and the airbag part 5.

A more specific illustration of FIG. 2 is shown in FIG. 3. First, in FIG. 3 (a), an airbag section having the same holes as the holes provided in the helmet 1 is shown. 5
Is shown, and the electrode portion 3 is fitted into the hole 2 common to the helmet 1 and the airbag portion 5, and the upper portion 3A of the electrode portion 3 is engaged with the helmet 1. The lower portion 3B is adapted to come into contact with the scalp 7.

The helmet is attached to the head of the human body in such a state, and the state is shown in FIG. 4, and the helmet 1 is obtained by injecting air from the air injection port 10 provided in the airbag section 5. Is fitted tightly to the scalp 7 via the air 6 of the airbag part 5.

Then, in this state, as shown in FIG. 3 (a), by injecting the jelly or cream-like electrolyte 9 loaded in the syringe 8 into the electrode part 3, as shown in FIG. 3 (b). The space of the electrode portion 3 is filled with the electrolyte 9 and the air 6 of the airbag portion 5 has already fitted the electrode portion 3 to the scalp 7, so that the scalp 7 and the electrode plate 3D are electrically connected via the electrolyte 9. It will be placed in a proper connection state.

The cable 4 connected to the electrode plate 3D of each electrode portion 3 is preferably passed through the air 6 of the airbag 5 as shown in FIG. 4 in order to buffer the vibration from the helmet 1. Reference numeral 4 is connected to an amplifier 11 provided in the helmet 1, and an output signal of this amplifier is sent to a transmitter 13 by a cable 12 via the helmet 1 and wireless brain wave measurement is performed.

It should be noted that if the helmet 1 and the airbag portion 5 are adhered to each other in some form, they have the advantage that they can be easily attached because they are integrated when they are attached as shown in FIG.

[0025]

As described above, according to the brain wave measuring helmet of the present invention, the airbag portion is provided inside the helmet, and the helmet and the airbag portion are provided with a common hole and the electrode is provided there. It is configured so that the scalp and the electrode are brought into contact with each other through the electrolyte injected from the hole by fitting the part, and wearing such a helmet and adjusting the air amount of the airbag. Since it can be fitted exactly without pain regardless of the shape and size of the, and noise can be prevented from entering due to vibration, etc., highly accurate measurement can be easily performed.

[Brief description of drawings]

FIG. 1 is an external view schematically showing a brain wave measuring helmet according to the present invention.

FIG. 2 is a view showing an engaged state of a helmet and an electrode part.

FIG. 3 is a cross-sectional view of an electrode portion of the brain wave measuring helmet according to the present invention.

FIG. 4 is a diagram in which the brain wave measuring helmet according to the present invention is mounted on the head and a wireless transmitter is connected.

[Explanation of symbols]

 1 Helmet 2 Hole 3 Electrode Part 3A Helmet Side Part 3B Scalp Side Part 3C Connection Part 3D Electrode 4 Cable 5 Airbag 6 Air 7 Scalp 9 Electrolyte 10 Air Injector 13 Transmitter In the figure, the same symbols indicate the same or corresponding parts .

Claims (4)

[Claims] 1. A helmet having a plurality of holes, an airbag portion provided inside the helmet and having holes so as to match the holes of the helmet, holes of the helmet aligned with each other, and The plurality of electrode portions which are fitted into at least the holes of the airbag portion among the holes of the airbag portion and contact the scalp through the electrolyte injected from the holes by adjusting the amount of air in the airbag portion. And a helmet for measuring an electroencephalogram, which comprises: 2. The helmet for measuring an electroencephalogram according to claim 1, wherein a cable for transmitting the electroencephalogram measurement value from the scalp is passed through the inside of the airbag part, the cable being connected to each electrode part. 3. The brain wave measuring helmet according to claim 1, wherein the electrode portion is composed of a helmet side portion, a scalp side portion, and a flexible connecting portion between them. 4. The brain wave measuring helmet according to claim 1, wherein the helmet and the air bag portion are adhered to each other.