JP6389117B2 - Biological electrode - Google Patents

Description

  The present invention relates to a biological electrode for measuring biological signals such as heartbeats and electrocardiographic waveforms in daily life.

  When it becomes possible to measure an individual's heart rate and electrocardiogram at any time, a system that can detect an individual's anomaly, such as a sudden rise or fall in heart rate, or no signal, and recognize the situation on the server side by communication It can be realized, and daily health management and quick response in an emergency can be realized.

  In measuring heartbeats and electrocardiographic waveforms, it is necessary to attach electrodes made of a conductive material to human skin. For medical electrocardiographic waveform measurement, a patch-like material coated with a gel material is used (see Patent Document 1). However, once an electrode is attached, it cannot be attached or detached, and therefore there is a problem that it is difficult to use for the purpose of continuous measurement for a long time and daily. Therefore, it has been proposed to attach an electrode to a belt, a bandage or clothes in order to be able to be worn on a human body continuously for a long time (see Patent Documents 2 and 3).

JP 2011-72543 A Japanese Patent No. 3413521 International Publication WO2013 / 073673

The electrodes disclosed in Patent Documents 2 and 3 can be used as clothes or equivalents, but are not suitable for measurement without wearing clothes in bathing facilities such as baths and saunas. There was a problem.
In addition, the electrodes disclosed in Patent Documents 2 and 3 have a structure to be tightened because it is necessary to increase the contact pressure with the human body, and the electrode is disclosed for a long time during movement by an airplane, a train, a bus, a private car, or the like. There was a problem that it was not suitable for measurement while sitting down.

The present invention has been made to solve the above problems, and an object thereof is to provide a bioelectrode suitable for use in a bathing facility environment.
Another object of the present invention is to provide a bioelectrode suitable for use in a state where a user is seated.

The biological electrode of the present invention includes a curved body-shaped electrode portion whose outer skin is made of a flexible conductive material, and the electrode portion so that the electrode portion comes into contact with the living body when hung on the neck of the living body. An attached towel, the electrode unit is filled with fine resin pellets inside, and the towel is a connector for mounting a terminal for transmitting a biological signal acquired by the electrode unit to the outside; It has wiring which electrically connects the electrode part and the connector.
Moreover, in one structural example of the bioelectrode of the present invention, the electrode portion is further made of a through-hole through which the towel penetrates and a conductive material capable of loosely sandwiching the towel passing through the through-hole. It has a clamping part, and is electrically connected with the wiring provided in the towel at the inner wall of the through-hole and the clamping part.

Further, the biological electrode of the present invention includes a curved body-shaped electrode portion whose outer skin is made of a flexible conductive material, and the electrode portion so that the electrode portion comes into contact with the living body when the electrode portion is hung on the neck of the living body. And the electrode part is filled with fine resin pellets inside, and further, a terminal for transmitting a biological signal acquired by contact with the living body to the outside, and the outer conductive material The electrode portion has a wiring connecting the conductive material and the terminal.
Moreover, in one configuration example of the biological electrode of the present invention, the electrode portion further includes a through hole through which the towel penetrates and a clamping portion capable of loosely clamping a towel passing through the through hole. It is characterized by comprising.

Further, the bioelectrode of the present invention is a curved body-shaped headrest cushion portion whose outer skin is made of an insulating material having flexibility, and the outer skin attached to the headrest cushion portion is made of an insulating material having flexibility. Curved body-shaped electrode cushion part smaller than the headrest cushion part, an electrode part made of a conductive material having flexibility attached to the electrode cushion part, and the electrode part when the body part is hung on the shoulder of the living body A towel to which the headrest cushion portion is attached so as to come into contact with the rear portion of the neck of the headrest, and the inside of the headrest cushion portion and the electrode cushion portion is filled with fine resin pellets, and further, the headrest The cushion portion is provided on a back surface that does not contact the living body, and is an end that transmits a biological signal to the outside. A connector for attaching a and is characterized by having a wiring for electrically connecting the connector and the electrode portion.
Further, in one configuration example of the bioelectrode of the present invention, a gap is formed between the back surface of the headrest cushion portion and the towel so as to cover the terminal attached to the connector. It is a feature.
Moreover, one structural example of the bioelectrode of the present invention is characterized in that an opening is formed in the towel so that the terminal can be attached to the connector.

  Further, the bioelectrode of the present invention is a curved body-shaped headrest cushion portion whose outer skin is made of an insulating material having flexibility, and the outer skin attached to the headrest cushion portion is made of an insulating material having flexibility. Curved body-shaped electrode cushion part smaller than the headrest cushion part, an electrode part made of a conductive material having flexibility attached to the electrode cushion part, and the electrode part when the body part is hung on the shoulder of the living body A towel to which the headrest cushion portion is attached so as to come into contact with the rear portion of the neck of the headrest, and the inside of the headrest cushion portion and the electrode cushion portion is filled with fine resin pellets, and further, the headrest The cushion unit includes a terminal that transmits a biological signal acquired by the electrode unit to the outside, and the electrode unit. It is characterized in that it has a wiring for electrically connecting the serial terminal therein.

  According to the present invention, a user does not wear clothes by configuring a bio-electrode from a curved electrode part made of a conductive material having a flexible outer skin and a towel to which the electrode part is attached. When taking a bath in a state or using a sauna, a user's biological signal can be measured, and the biological signal can be monitored or stored remotely.

  Further, in the present invention, the electrode portion is provided with a through-hole through which the towel passes and a clamping portion made of a conductive material capable of loosely clamping the towel passing through the through-hole. The inner wall and the clamping part can electrically connect the electrode part and the wiring provided on the towel, and the position of the electrode part can be arbitrarily adjusted.

  Moreover, in this invention, the terminal for a connection with a terminal can be made unnecessary by providing a terminal inside an electrode part.

  Further, in the present invention, a curved headrest cushion portion whose outer skin is made of an insulating material having flexibility, and a curved body electrode cushion whose outer skin attached to the headrest cushion portion is made of an insulating material having flexibility. The user sits comfortably by configuring the bioelectrode from the electrode portion made of a conductive material having flexibility attached to the electrode cushion portion and the towel to which the headrest cushion portion is attached. In this state, the biological signal can be measured, and the biological signal can be monitored or stored remotely.

  In the present invention, the terminal can be covered with a towel by forming a gap between the back surface of the headrest cushion part and the towel so that the terminal attached to the connector can be covered, The impact on the terminal in use can be reduced.

  Moreover, in this invention, attachment / detachment of the terminal with respect to a headrest cushion part can be made easy by forming the opening part in a towel so that a terminal can be mounted | worn with a connector.

  Moreover, in this invention, the connector for a connection with a terminal can be made unnecessary by providing a terminal inside the headrest cushion part.

It is the schematic diagram which shows the external appearance figure of the biological electrode which concerns on the 1st Embodiment of this invention, and a mode that the biological electrode was mounted | worn with the biological body. It is a perspective view which shows the structural example of the electrode part in the 1st Embodiment of this invention, and a perspective view explaining the electrical connection of an electrode part and wiring. It is a top view which shows the structural example of the center part of the towel in the 1st Embodiment of this invention. It is a figure explaining the mounting | wearing method to the biological body of the bioelectrode which concerns on the 1st Embodiment of this invention. It is a top view which shows the other structural example of the center part of the towel in the 1st Embodiment of this invention. It is the front view and back view of a bioelectrode which concern on the 2nd Embodiment of this invention. It is a top view of the bioelectrode and electrode part which concern on the 2nd Embodiment of this invention. It is a figure explaining the manufacturing method of the headrest cushion part and electrode part in the 2nd Embodiment of this invention. It is a figure explaining the attachment method to the towel of the headrest cushion in the 2nd Embodiment of this invention. It is a schematic diagram which shows a mode that the biological electrode which concerns on the 2nd Embodiment of this invention was mounted | worn with the biological body.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1A is an external view of a bioelectrode according to the first embodiment of the present invention, and FIG. 1B is a schematic view of a state in which the bioelectrode of FIG. It is.
The living body electrode of the present embodiment has curved electrode portions 1a and 1b whose outer skin is made of a conductive material having flexibility, and the electrode portions 1a and 1b come into contact with the living body when hung on the neck of the living body. And the towel 2 to which the electrode portions 1a and 1b are attached.

  When this biological electrode is attached to the living body 100 (user), as shown in FIG. 1 (B), the towel 2 is turned behind the neck of the living body 100 and both ends of the towel 2 are hung on the front side of the body. . And a position is adjusted so that electrode part 1a, 1b may contact the chest of the biological body 100, for example. As will be described later, the positions of the electrode portions 1a and 1b can be arbitrarily adjusted.

2A is a perspective view showing the structure of the electrode portions 1a and 1b, and FIG. 2B is a perspective view for explaining the electrical connection between the electrode portions 1a and 1b and the wiring.
The electrode portion 1a is formed by sewing a flexible conductive cloth into a curved body. As a conductive cloth, for example, a conductive polymer such as PEDOT / PSS in which poly 3,4-ethylenedioxythiophene (PEDOT) is doped with polystyrene sulfonic acid (poly-4-styrene sulfonate; PSS) is used as a fiber material. Is impregnated. Examples of the fiber material covered with the conductive polymer include one kind of fiber selected from the group consisting of cotton, hemp, wool, silk, rayon, polynosic, cupra, acetate, nylon, polyester, acrylic, vinylon, and polypropylene, or A blend of two or more types of fibers can be mentioned.

  A through-hole 10 is provided in the curved body-shaped electrode portion 1a. The inner wall of the through hole 10 is made of a conductive cloth connected to the outer wall of the curved body. The space 11 inside the electrode portion 1a is filled with PVC pellets. A cylinder 12 made of a conductive material is inserted into the through hole 10. An upper portion of the cylinder 12 is provided with a clamping portion 13 capable of loosely clamping the towel 2, and a circular member 14 having a diameter larger than the inner diameter of the through hole 10 is provided at the lower portion of the cylinder 12. It has been.

  The outer diameter of the cylinder 12 is set to a size at which the outer wall of the cylinder 12 and the inner wall of the through hole 10 are in close contact when the cylinder 12 is inserted into the through hole 10. When the cylinder 12 is inserted into the through hole 10 of the electrode part 1a, it is inserted from the lower part of the electrode part 1a. As described above, the clamping part 13 protruding from the cylinder 12 is provided on the upper part of the cylinder 12. However, since the electrode part 1 a is flexible, the clamping part 13 and the cylinder 12 are pushed into the through hole 10. Is possible. When the circular member 14 comes into contact with the lower portion of the electrode portion 1a, the insertion of the cylinder 12 into the through hole 10 is completed. At this time, the clamping portion 13 is exposed to the outside of the electrode portion 1a. When the cylinder 12 is inserted into the through hole 10, the electrode portion 1a and the cylinder 12 are electrically connected.

Examples of the conductive material constituting the cylinder 12 include metal-plated plastic, metal, or carbon. Since the clamping part 13 needs to be electrically connected to the cylinder 12, it is desirable that the clamping part 13 is also made of the same conductive material.
2A and 2B illustrate the configuration of the electrode portion 1a, the configuration of the electrode portion 1b is the same as that of the electrode portion 1a.

  FIG. 3 is a plan view showing a central portion of the towel 2. As is well known, the towel 2 is a woven fabric made of cloth. To this towel 2, a wiring 4a made of conductive yarn for connecting the electrode portion 1a and the terminal 3 and the electrode portion 1b and the terminal 3 are connected. Wiring 4b made of a conductive thread is provided in a stitch shape or a zigzag shape. In addition, although wiring should just be arrange | positioned so that the electrode part 1b and the terminal 3 may connect electrically, it is not restricted to the said two shapes, In this specification, it describes as a stitch hereafter. As shown in FIG. 3, only the wiring 4a is provided on one side (the side where the electrode part 1a is provided) from the central part of the towel 2, and the other side (the electrode part 1b is provided from the central part of the towel 2). Only the wiring 4b is provided on the side).

  In the central portion of the towel 2, two stitch collecting portions are provided. Specifically, a connector 5a composed of a metal snap button (female) electrically connected to the wiring 4a, and a connector 5b composed of a metal snap button (female) electrically connected to the wiring 4b. Is provided. The connectors 5a and 5b are attached to the towel 2 by sewing with a conductive thread. At the same time, by this sewing, the wiring 4a and the connector 5a and the wiring 4b and the connector 5b are electrically connected. The connectors 5a and 5b are separated by the cloth of the insulating towel 2, and are electrically insulated.

  On the other hand, connectors 6 a and 6 b made of metal snap buttons (male) are provided on the surface of the casing made of an insulating material of the terminal 3. The connectors 6a and 6b are electrically connected to an electric circuit (not shown) inside the terminal 3. The distance between the connectors 6a and 6b is the same as the distance between the connectors 5a and 5b. If the terminal 3 is mounted so that the connectors 6a and 6b of the terminal 3 are fitted to the connectors 5a and 5b on the towel 2 side, the terminal 3 is mechanically fixed to the towel 2, and the wirings 4a and 4b and the terminal 3 Are electrically connected. Thus, both mechanical fixation and electrical connection can be realized.

  As described in FIG. 1B, when the towel 2 is turned behind the neck of the living body 100 and both ends of the towel 2 are hung on the front side of the living body 100, the electrode portions 1a and 1b are connected to the chest of the living body 100, for example. Contact. When a user who wants to wear a bioelectrode operates to loosen the clamping portions 13 of the electrode portions 1a and 1b, the electrode portions 1a and 1b are moved up and down while the towel 2 penetrates the electrode portions 1a and 1b. In this way, the electrode portions 1a and 1b can be positioned as shown in FIG. 4A or can be positioned as shown in FIG. 4B.

  And if a user operates so that the clamping part 13 of electrode part 1a, 1b may be tightened, since the clamping part 13 pinches the towel 2, the position of the up-down direction of electrode part 1a, 1b is fixed. At this time, the electrode part 1a is electrically connected to the connector 5a by the contact between the cylinder 12 inside the electrode part 1a and the wiring 4a and the contact between the clamping part 13 of the electrode part 1a and the wiring 4a. Similarly, the electrode portion 1b is electrically connected to the connector 5b by contact between the cylinder 12 inside the electrode portion 1b and the wiring 4b, and contact between the clamping portion 13 of the electrode portion 1b and the wiring 4b. Therefore, if the terminal 3 is attached to the towel 2 as described above, the electrode portions 1a and 1b and the terminal 3 are electrically connected.

  Since the electrode portions 1a and 1b are made of a conductive cloth having flexibility, the electrode portions 1a and 1b are deformed according to the body shape when contacting the living body 100 as shown in FIG. Has come to improve. If the user applies pressure to the electrode portions 1a and 1b from above, the electrode portions 1a and 1b are deformed more greatly, and the adhesion to the skin is further improved.

  The terminal 3 receives various biological signals detected by the electrode portions 1a and 1b, converts them into electric signals, and finally wirelessly transmits them to an external server device (not shown). Examples of biological signals acquired by the electrode units 1a and 1b include an electrocardiogram, HVR (CVRR, RR50), heart rate, pulse, number of breaths, myoelectric potential, skin potential, and the like.

  The terminal 3 converts the analog signal input from the electrode units 1a and 1b into a digital signal, performs various signal processing as necessary, and transmits the signal to the server device via an antenna (not shown). The electric circuit inside the terminal 3 includes, for example, an A / D (Analog-to-digital) conversion circuit, a signal processing circuit, a program processing device such as an MCU (Micro Controller Unit), and an RF (Radio Frequency) circuit. Composed.

  The MCU of the terminal 3 may determine the signal quality according to the signal strength or signal shape of the biological signal. For example, the MCU determines that the signal quality is good if the signal strength of the biological signal is greater than or equal to a predetermined threshold, and determines that the signal quality is poor if the signal strength is less than the threshold. The heartbeat waveform is composed of components such as a P wave, a Q wave, an R wave, an S wave, and a T wave that reflect the activity of the atria and ventricles. The MCU of the terminal 3 determines that the signal quality is good when signal components such as P wave, Q wave, R wave, S wave, and T wave are correctly obtained when measuring the heartbeat waveform. If no component is obtained, it is determined that the signal quality is poor.

  The terminal 3 notifies the user of the determination result of the signal quality. Notification methods include voice output, vibration, or notification via a server device. When the notification is made via the server device, for example, the determination result of the quality of the signal quality is displayed on an external display device. By notifying the user of the determination result of the quality of the signal quality, when the signal quality is poor, the user can take measures such as correcting the positions of the electrode portions 1a and 1b.

  Moreover, as shown in FIG. 5, you may make it provide the electrode part 7 which consists of a conductive cloth in the surface which contacts the biological body 100 of the center part (part which contact | abuts the neck of the biological body 100). As a method for fixing the electrode portion 7 to the towel 2, there are a method for sewing the electrode portion 7 and a method for fixing by bonding. A connector 5c made of a metal snap button (female) is disposed on the surface of the towel 2 that does not come into contact with the living body 100 so as to face the electrode portion 7 with the towel 2 interposed therebetween, and the towel 2 is penetrated by a silver wire or the like. Then, the connector 5c is sewn to the electrode portion 7. Thereby, the electrode part 7 and the connector 5c are electrically connected.

When the electrode portion 7 and the connector 5c are provided, a connector 6c made of a metal snap button (male) is provided on the surface of the casing of the terminal 3 at a position where it is fitted to the connector 5c. The connector 6c is electrically connected to the ground of an electric circuit (not shown) inside the terminal 3.
The terminal 3 may be attached to the towel 2 so that the connectors 6a, 6b, and 6c of the terminal 3 are fitted to the connectors 5a, 5b, and 5c on the towel 2 side as described above.

  As described with reference to FIG. 1B, when the towel 2 is turned behind the neck of the living body 100 and both ends of the towel 2 are hung on the front side of the living body 100, the electrode portion 7 provided at the center of the towel 2. In contact with the neck skin. Thereby, the electrode part 7 can be functioned as a ground electrode. Providing a ground electrode has a noise reduction effect when acquiring a biological signal, so that the loss rate of data such as heartbeats can be reduced.

  In addition, when providing the electrode part 7 in the surface which contacts the biological body 100 of the towel 2, it is necessary to provide the connector 5a, 5b, 5c in the surface which does not contact the biological body 100 of the towel 2, and to mount the terminal 3 on this surface. However, when the electrode part 7 is not provided, the connectors 5a and 5b may be provided on the surface in contact with the living body 100. In this case, if the terminal 3 is attached, the connectors 5a and 5b are not exposed, so the connectors 5a and 5b do not come into contact with the living body 100.

  As described above, in the present embodiment, the electrode portions 1a, 1b and the user's skin come into close contact with each other by providing the electrode portions 1a, 1b with a flexible function of changing the shape itself. It is possible to acquire a biological signal in a situation where it was difficult to measure.

  In the past, deaths due to heart / brain diseases during bathing have increased. For example, elderly people living alone suddenly die of accidents during bathing, and deaths in sauna facilities, not limited to elderly people. Is also happening. Accidents when taking a bath or using a sauna may be caused by changes in the temperature environment such as hot water, indoors, dressing rooms, etc. It is thought to be caused by the cause.

  In the present embodiment, the user hangs the towel 2 from the neck without wearing clothes, and installs the electrode portions 1a and 1b at appropriate positions to measure biological signals such as heartbeats and electrocardiographic waveforms. It becomes possible. The electrode portions 1a and 1b are filled with fine PVC pellets, and the density of the PVC is higher than that of water. Therefore, when the user puts in a bathtub filled with hot water, the electrode portions 1a and 1b are heated. It acts as a weight that sinks into and maintains contact with the user's skin.

  As described above, the terminal 3 wirelessly transmits the measured biological signal to the server device. A server apparatus can grasp | ascertain a user's state because a biological signal transmitted from the terminal 3 is accumulate | stored and analyzed. When the server device determines that an abnormality has occurred in the user's state, the server device can issue an alarm to the facility manager, the watcher, or a close relative at an early stage. In addition, if the server device is notified of the situation immediately before an abnormality occurs from the server device to the emergency transport staff or medical staff, it can contribute to early treatment after the abnormality occurs. In addition, by analyzing the accumulated data, it is possible to inform the user of an abnormal state or the like that is predicted to occur easily when the user bathes, and to prompt the user himself / herself.

  As described above, in the present embodiment, when a user is taking a bath without wearing clothes or using a sauna, the user's biological signal can be measured, and the biological signal can be measured remotely. Signal monitoring or data storage becomes possible.

  In the present embodiment, the terminal 3 may be provided inside the electrode portions 1a and 1b. In this case, the wirings 4a and 4b and the connectors 5a and 5b provided on the towel 2 are not necessary, and the conductive cloth constituting the electrode portions 1a and 1b and the terminal 3 are electrically connected by the internal wiring. Good.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. FIG. 6A is a front view of the bioelectrode according to the second embodiment of the present invention, and FIG. 6B is a rear view of the bioelectrode of FIG.
The bioelectrode of the present embodiment includes a curved headrest cushion portion 20 whose outer skin is made of a flexible insulating material, and an electrode portion 21a made of a flexible conductive material attached to the headrest cushion portion 20. , 21b and a towel (not shown) to which the headrest cushion part 20 is attached so that the electrode parts 21a, 21b come into contact with the rear part of the living body's neck when it is placed on the shoulder of the living body.

FIG. 7A is a plan view of the bioelectrode according to the present embodiment as viewed from above, and FIG. 7B is a plan view of the electrode portion 21a as viewed from above.
The headrest cushion part 20 is formed into an ellipsoidal shape (curved surface shape) by sewing cloths having flexibility, waterproofness, and insulation. The space inside the headrest cushion portion 20 is filled with resin pellets such as fine-grained PVC pellets. In the present embodiment, since the headrest cushion portion 20 only needs to have a function of elasticity and flexibility, the material of the resin pellet does not need to be PVC. Examples of the waterproof and insulating fabric include a polyester / polyurethane blend material and an entrant (R) material manufactured by Toray Industries, Inc. as a backing.

  Electrode cushion portions 25a and 25b are attached to the surface of the headrest cushion portion 20 that contacts the living body (the front surface shown in FIG. 6A), and the surface opposite to the electrode cushion portions 25a and 25b (FIG. 6B). The connector 23a, 23b which consists of metal snap buttons (female) is attached to the back surface shown in FIG. Further, projections 24 a and 24 b for connecting to a towel, which will be described later, are attached to the side surface of the headrest cushion portion 20.

  The electrode cushion portions 25a and 25b are formed into a flat ellipsoidal shape (curved surface shape) by sewing cloths having flexibility, waterproofness, and insulation. The space inside the electrode cushion portions 25 a and 25 b is filled with resin pellets as with the headrest cushion portion 20. As for the size of the electrode cushion portions 25a and 25b, the length of the long axis is desirably about 3 to 4 cm.

  Electrode portions 21a and 21b made of conductive cloth are attached to the surfaces of the electrode cushion portions 25a and 25b that come into contact with the living body. The conductive cloth is as described in the first embodiment. As a method for fixing the electrode portions 21a and 21b to the electrode cushion portions 25a and 25b, there are a method of sewing the electrode portions 21a and 21b, a method of fixing by adhesion, and the like.

  Further, protrusions 26a and 26b made of a conductive cloth electrically connected to the electrode portions 21a and 21b are attached to the side surfaces of the electrode cushion portions 25a and 25b. The electrical connection between the electrode portions 21a and 21b and the protruding portions 26a and 26b can be realized by, for example, a method of sewing the electrode portions 21a and 21b and the protruding portions 26a and 26b with silver thread. The protrusions 26a, 26b and the connectors 23a, 23b are electrically connected by wirings 22a, 22b provided inside the headrest cushion portion 20. The electrode portions 21a and 21b are electrically connected to the connectors 23a and 23b through the wirings 22a and 22b.

FIGS. 8A to 8D are diagrams illustrating a method of manufacturing the headrest cushion portion 20 and the electrode portions 21a and 21b.
First, the wirings 22a and 22b made of silver thread are sewn on the lining of the waterproof cloth 200 that is the basis of the headrest cushion portion 20 (FIG. 8A). In the wirings 22a and 22b, the upper thread may be a silver thread and the lower thread may be a normal thread.

  Subsequently, the cloth 200 is turned upside down, and the protrusions 24a and 24b made of waterproof cloth are attached to the outer surface of the cloth 200 (FIG. 8B). As a method of fixing the protrusions 24a and 24b to the cloth 200, there are a method of sewing the protrusions 24a and 24b, a method of fixing by bonding, and the like.

  Next, connectors 23a and 23b made of metal snap buttons (female) are attached to the outer surface of the cloth 200 (FIG. 8C). At this time, the ends of the wirings 22a and 22b and the connectors 23a and 23b are sewed so as to penetrate the cloth 200 with silver thread, and thereby the electrical connection between the wirings 22a and 22b and the connectors 23a and 23b, and the connectors 23a and 23b. The fixing of 23b is realized at the same time.

  Further, the electrode cushion portions 25a and 25b are attached to the surface of the cloth 200 opposite to the connectors 23a and 23b (FIG. 8D). As described above, the electrode portions 21a and 21b and the protruding portions 26a and 26b are already attached to the electrode cushion portions 25a and 25b. As a method of fixing the electrode cushion portions 25a and 25b to the cloth 200, there are a method of sewing the electrode cushion portions 25a and 25b, a method of fixing by bonding, and the like. The distance between the electrode cushion parts 25a and 25b (the distance between the electrode parts 21a and 21b) is several cm, preferably about 2 cm to 6 cm.

  Then, the wirings 22a and 22b and the protrusions 26a and 26b are sewn together by sewing the tip portions of the wirings 22a and 22b opposite to the connectors 23a and 23b and the protrusions 26a and 26b so as to penetrate the cloth 200 with silver thread. And electrically connect. In this manner, the electrode portions 21a and 21b and the connectors 23a and 23b can be electrically connected via the protrusion portions 26a and 26b and the wirings 22a and 22b.

  Finally, the cloth 200 is stitched and formed into an ellipsoidal shape, and the headrest cushion portion 20 is produced. As described above, the headrest cushion portion 20 is filled with fine granular resin pellets.

  Thus, the production of the headrest cushion part 20 and the electrode parts 21a and 21b is completed. 9A, the headrest cushion portion 20 is attached to the towel 27 by sewing the protrusions 24a and 24b of the headrest cushion portion 20 and the towel 27 together. At this time, a gap is provided between the back surface of the headrest cushion portion 20 and the towel 27 so that the terminal 28 can be attached.

  Connectors 29 a and 29 b made of metal snap buttons (male) are provided on the surface of the casing made of an insulating material of the terminal 28. The connectors 29a and 29b are electrically connected to an electric circuit (not shown) inside the terminal 28. The distance between the connectors 29a and 29b is the same as the distance between the connectors 23a and 23b. If the terminal 28 is mounted so that the connectors 29a and 29b of the terminal 28 are fitted with the connectors 23a and 23b on the headrest cushion portion 20, the terminal 28 is mechanically fixed to the headrest cushion portion 20 and the electrode portions 21a, 21b and the terminal 29 are electrically connected. Thus, both mechanical fixation and electrical connection can be realized. The configuration of the electric circuit inside the terminal 28 is the same as that of the terminal 3. In the example of FIG. 9A, since the terminal 28 is covered with the towel 27, the impact on the terminal 28 in use can be reduced.

  Further, as shown in FIG. 9B, an opening 30 having an area equivalent to that of the terminal 28 may be provided in the towel 27 in advance. Thereby, the terminal 28 can be easily attached to and detached from the headrest cushion portion 20. Also in the case of FIG. 9B, since the periphery of the terminal 28 is surrounded by the towel 27, the impact on the terminal 28 in use can be reduced.

  FIG. 10 is a schematic view showing a state in which the biological electrode of the present embodiment is attached to a living body. When the living body electrode of the present embodiment is attached to the living body 100 (user), the headrest cushion portion 20 is placed behind the neck of the living body 100 as shown in FIG. 10, and both ends of the towel 27 are hung on the front side of the body. Like that.

  As described above, in the present embodiment, the headrest cushion portion 20 having elasticity and flexibility is disposed behind the user's neck. With such an arrangement, the electrode portions 21a and 21 come into contact with the skin behind the user's neck, so that a biological signal can be acquired. The operation of the terminal 28 is the same as that of the terminal 3 described in the first embodiment, and the measured biological signal is wirelessly transmitted to the server device. Since the headrest cushion part 20, the electrode cushion parts 25a and 25b, and the electrode parts 21a and 21b have elasticity and flexibility, and these are deformed along the back part of the user's neck, the electrode parts 21a, The adhesion between 21b and the user's skin is improved.

  Further, weights may be attached to both ends of the towel 27 to further improve the adhesion between the electrode portions 21a and 21b and the user's skin. However, in the present embodiment, as described above, the headrest cushion portion 20, the electrode cushion portions 25a and 25b, and the electrode portions 21a and 21b are deformed, so that the adhesion between the electrode portions 21a and 21b and the user's skin is obtained. So it does n’t have to be weighted. Even if the user presses the neck against the back of the seat, the user will not hurt the neck due to the elasticity and flexibility of the headrest cushion portion 20 and the electrode cushion portions 25a and 25b, and the impact will not be transmitted to the terminal 28. .

  Conventionally, during movement by airplanes, trains, buses, private cars, etc., if the same state is maintained for a long time, thrombosis called economy class syndrome may be caused, and physical condition may be changed due to various causes. Also, even in normal lifestyle habits such as office work, often sitting in a chair for a long time and taking the same posture.

By using the bioelectrode as in this embodiment, many people can easily wear the bioelectrode without worrying about the surrounding eyes, while sitting in a chair and having a comfortable neck, A biological signal such as an electrocardiographic waveform can be measured, and the biological signal can be monitored or stored remotely.
In the present embodiment, it is assumed that the user uses the biological electrode while sitting, but it is also possible to use it while taking a bath.

  In the present embodiment, the terminal 28 may be provided inside the headrest cushion portion 20. In this case, the connectors 23a and 23b provided on the headrest cushion portion 20 are not necessary, and the electrode portions 21a and 21b and the terminal 28 may be electrically connected by the wirings 22a and 22b.

  In the first and second embodiments, the biological signal is transmitted to the server device. However, the present invention is not limited to this, and may be transmitted to an information terminal such as a smartphone.

  The present invention can be applied to techniques for measuring heartbeats and electrocardiogram waveforms in daily life and utilizing the data for health management and emergency response.

  1a, 1b, 7, 21a, 21b ... electrode part, 2, 27 ... towel, 3, 28 ... terminal, 4a, 4b, 22a, 22b ... wiring, 5a, 5b, 5c, 6a, 6b, 6c, 23a, 23b 29a, 29b ... connector, 10 ... through hole, 12 ... cylinder, 13 ... clamping part, 14 ... circular member, 100 ... living body, 20 ... headrest cushion part, 24a, 24b, 26a, 26b ... projection part, 25a, 25b ... Electrode cushion part, 30 ... Opening part.

Claims (8)

Curved electrode part made of a conductive material whose outer skin is flexible,
A towel on which the electrode part is attached so that the electrode part comes into contact with the living body when hung on the neck of the living body;
The electrode portion is filled with fine resin pellets inside,
The towel
A connector for mounting a terminal for transmitting the biological signal acquired by the electrode unit to the outside;
A biological electrode having wiring for electrically connecting the electrode part and the connector. The bioelectrode according to claim 1, wherein
The electrode part is
Furthermore, a through hole through which the towel penetrates,
A clamping portion made of a conductive material capable of loosely clamping a towel passing through the through hole; and
A biological electrode characterized in that it is electrically connected to the wiring provided on the towel at the inner wall of the through hole and the clamping portion. Curved electrode part made of a conductive material whose outer skin is flexible,
A towel on which the electrode part is attached so that the electrode part comes into contact with the living body when hung on the neck of the living body;
The electrode portion is filled with fine resin pellets inside,
Furthermore, a terminal for transmitting a biological signal acquired by contact with the living body to the outside,
A bioelectrode having a wiring for connecting the outer conductive material and the terminal inside the electrode portion . The bioelectrode according to claim 3, wherein
The electrode part is
Furthermore, a through hole through which the towel penetrates,
A biological electrode comprising: a clamping part capable of loosely clamping a towel passing through the through hole. A curved headrest cushion portion made of an insulating material whose outer skin is flexible;
An electrode cushion part having a curved body smaller than the headrest cushion part, wherein the outer skin attached to the headrest cushion part is made of an insulating material having flexibility,
An electrode portion made of a conductive material having flexibility attached to the electrode cushion portion;
A towel to which the headrest cushion part is attached so that the electrode part comes into contact with a rear part of the neck of the living body when hung on the shoulder of the living body,
Inside the headrest cushion part and the electrode cushion part are filled with fine granular resin pellets,
Furthermore, the headrest cushion part is
A connector for mounting a terminal for transmitting a biological signal to the outside, provided on the back surface not in contact with the living body;
A biological electrode having wiring for electrically connecting the electrode part and the connector. The bioelectrode according to claim 5,
A bioelectrode, wherein a gap is formed between the back surface of the headrest cushion portion and the towel so as to cover the terminal attached to the connector. The bioelectrode according to claim 5,
An opening is formed in the towel so that the terminal can be attached to the connector. A curved headrest cushion portion made of an insulating material whose outer skin is flexible;
An electrode cushion part having a curved body smaller than the headrest cushion part, wherein the outer skin attached to the headrest cushion part is made of an insulating material having flexibility,
An electrode portion made of a conductive material having flexibility attached to the electrode cushion portion;
A towel to which the headrest cushion part is attached so that the electrode part comes into contact with a rear part of the neck of the living body when hung on the shoulder of the living body,
Inside the headrest cushion part and the electrode cushion part are filled with fine granular resin pellets,
Furthermore, the headrest cushion part is
A terminal for transmitting the biological signal acquired by the electrode unit to the outside;
A biological electrode having therein a wiring for electrically connecting the electrode part and the terminal.

Images