JP2019092544A - Clothing for biological information measurement - Google Patents

Abstract

To provide clothing for biological information measurement excellent in attachability/detachability.SOLUTION: Clothing for biological information measurement is of a front open structure having an engagement member for engaging right and left bodies is excellent in attachability/detachability of the clothing, and includes a measuring part provided with an electrode for biological information measurement inside the clothing. The measuring part is connected to the clothing through a measuring part support member. By increasing a degree of freedom of the measuring part, the outside of the clothing can make a natural movement even when the electrode comes in contact with the skin in a semi-fixed state. Furthermore, when the measuring part and the measuring part support member are removed, a wearing feeling closer to that of general clothing can be obtained.SELECTED DRAWING: Figure 1

Description

The present invention relates to a clothing for measuring biological information having at least an electrode in contact with a living body, and more particularly to a clothing for measuring biological information that can be usefully used in the field of care and nursing.

In recent years, wearable biological information measuring devices are in widespread use. Such wearable biological information measuring devices have come to be used not only for humans, but also for physical condition management of pets, livestock, etc., and also for research on outdoor animals.
Attempts have been made to provide such wearable biological information measuring devices in the form of clothes and to utilize them in the fields of disease, injury, etc., elderly people, or infants, such as watching, caring, and nursing. Conventionally, as a method of measuring biological information, a method of measuring biological information of a human body such as an electrocardiogram has been taken. However, such prior art requires using gel or paste between the electrode and the skin surface to fix the electrode, or using adhesive tape. For this reason, in continuous measurement for a long time, there is an unpleasant feeling due to perspiration, occurrence of pruritus feeling or discomfort, and there is a problem that the sticking electrode such as an adhesive tape having high adhesiveness is more likely to cause dermatitis.

  On the other hand, in order to solve such a problem, the invention of a wearable biological information measuring device capable of easily measuring biological information such as an electrocardiogram by being worn as clothes has been made. However, although such an invention is improved in terms of discomfort due to perspiration, generation of pruritus and discomfort, and dermatitis, it has a problem that it is difficult to attach and detach because it is in close contact with the body. Of course, there is no problem in the case where the wearer of the biological information measuring clothing is healthy and can easily put on and take off the clothing with his own power. However, many problems occur when the wearer is old, a care recipient, or a patient. If the wearer is an elderly person, the movement is not good, and it is difficult to raise and lower the arm necessary for the attachment and detachment of the clothes. Furthermore, if the wearer is a patient requiring care or a hospitalized patient, it is difficult to attach and detach with his or her own power, and assistance by a caregiver is required. At this time, in the case of a front-opened garment, it can be detached while the wearer is sleeping. However, in the case of non-front-opening clothing, it is needless to say that the wearer has to be raised once, and the burden on the wearer as well as the assistant is heavy. It is hoped that provision of a universal design clothing for measuring biological information and easy to attach and detach is desirable because clothing of the universal design with an open front is used for the clothing of the elderly and care recipients. It is rare. Similar needs also exist when targeting pets and livestock.

Patent No. 6073776

The present invention has been made on the background of the problems of the prior art. That is, an object of the present invention is to provide a garment for measuring biological information which is excellent in removability as a garment, in particular, a garment for measuring biological information which is open at the front, and in a state in which a subject is lying on his back. An object of the present invention is to provide a clothing for measuring biological information in which a caregiver can easily arrange an electrode for measuring biological information at an appropriate measurement position.

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining, the present inventors found out that the said subject could be solved by the means shown below, and arrived at this invention.
That is, the present invention is configured as follows.
[1] At least
A measuring unit of a tubular structure having a flexible fabric as a substrate;
The clothes body,
Flexible band-shaped measuring unit support member,
A clothing for measuring biological information, comprising:
[2] The clothing for measuring biological information according to [1], wherein both band ends of the belt-like measurement unit support member are detachably attached to the clothes main body.
[3] A band end of one side of the belt-like measuring part support member is detachably attached to the clothes main body, and the other band end is attached so as not to be detachable. The clothing for biological information measurement as described in 1].
[4] The belt-like measurement unit support member is attached to the clothes main body in a state of penetrating the cylinder of the measurement unit of the cylindrical structure, according to any one of [1] to [3] Clothing for measuring biological information as described.
[5] The living body information measurement according to any one of [1] to [4], wherein the garment body has a front opening structure, and the left and right bodies in the front opening structure have engaging members. Clothing.
[6] The clothing for measuring biological information according to any one of [1] to [5], wherein the measurement unit has a plurality of electrodes in direct contact with the skin of the subject.
[7] The clothing for measuring biological information according to any one of [1] to [6], wherein the degree of extension of the measurement unit support member is 10% or more.
[8] The clothes for measuring biological information according to any one of [1] to [7], wherein the clothes main body has an opening and closing part.
[9] The clothes for measuring biological information according to any one of [1] to [8], wherein the clothes main body is a clothes applied to the upper body of a person.

Furthermore, the present invention preferably has the following configuration.
[10] The clothing for biological information measurement according to any one of [1] to [9], wherein the electrode is a conductive fiber composite material.
[11] The clothing for biological information measurement according to any one of [1] to [10], wherein the electrode is a stretchable conductive material.
[12] The clothing for measuring biological information according to any one of [1] to [11], wherein the wiring connected to the electrode is made of the same material.

The present invention is a garment for measuring biological information, in which the measurement unit is independent of the clothes main body, and the measurement unit is loosely coupled to the clothes main body with a degree of freedom, thereby detecting the sensor of the measurement unit with respect to the clothes. It is possible to allow freedom in the position of the site, for example, the skin contact electrode site on the body. By giving freedom in the placement position, individual differences increase when the detection site is fixed to the ready-made clothes depending on the body size, or the detection site is prevented from contacting the site damaged by injury or inflammation be able to.
In addition, since the clothes body can move with freedom to the position of the detection unit of the measurement unit, for example, in the case of having a skin contact type electrode, when the wearer moves by the electrode stuck to the skin The discomfort caused by the pulling of the clothes can be reduced.
Furthermore, by applying the present invention to a form having a flat portion (for example, an upper body clothes with a front opening, a lower body clothes with a front opening, clothes with a form that wraps arms and feet, etc.) By providing the clothing for measuring biological information of the design, the front opening not only makes it easy for the wearer to attach and detach, but also makes it easier for the change assistant to take care of it. Since the chest can be easily exposed, it is easy to see and take care such as wiping the sweat from the body etc. Furthermore, the clothing for measuring biological information of the present application can be removed from the measuring unit, and the measuring unit support member can be removed. Since it includes the possible forms, it is possible to provide the wearer with a feeling of wearing equal to that of a general garment by removing such a part, which makes it possible to operate the measuring unit only when biological information measurement is required.
Furthermore, in the present invention, the degree of freedom of the position of the measuring unit is high, and it becomes possible for the caregiver to install the measuring unit at an appropriate position. It becomes easy to install a measurement part avoiding damage for example by the condition of a skin, etc. of course, for example by being able to install in the bridge suitable for living body information measurement.

FIG. 1 is a view of the front outer surface of a front opening garment which is an example of a biological information measuring garment according to the present invention. FIG. 2 is a view of the back outer surface of the front opening clothing which is an example of the biological information measuring clothing in the present invention. FIG. 3 is a view of the front skin surface of a front opening clothing which is an example of a living body information measuring clothing according to the present invention. FIG. 4 is a schematic view showing an example of the skin surface side in a state in which the measurement unit support member in the present invention is in communication with the cylinder of the measurement unit. FIG. 5 is a schematic view showing the back side of FIG. FIG. 6 shows a preparation example as an example of the biological information measurement garment according to the present invention, with the front opening part opened and the measurement part and the measurement part support member removed, the mannequin is worn inside out, ie, originally on the skin surface It is an appearance photograph taken by showing the touching side. FIG. 7 shows an example of producing the biological information measuring garment according to the present invention, with the measuring unit and the measuring unit supporting member attached, and wearing it on the mannequin in reverse, that is, showing the side originally in contact with the skin surface It is an appearance photograph. FIG. 8 is a photograph taken from the state of FIG. 7 with the measurement unit and the measurement unit support member removed.

The biological information in the present invention refers to electrocardiogram, electromyogram, body temperature, temperature in the clothes, respiratory rate, respiratory state, amount of sweating, amount of sweating, joint angle, displacement of each part of the body which can be detected by electrodes and / or other sensors. , Acceleration of each part of the body, position information of each part of the body, etc. The electrodes and / or other sensors are appropriately selected according to the biological information to be measured. Among them, the present invention is a preferred embodiment having at least a plurality of electrodes in contact with a living body, and is a preferred embodiment further comprising an electrode capable of measuring an electrocardiogram as biological information. Generally, measurement results of electrocardiogram are generally recorded as an electrocardiogram in which time is plotted on the horizontal axis and potential difference is plotted on the vertical axis. The waveform that appears in the electrocardiogram at each heartbeat is mainly composed of the representative five waves of P wave, Q wave, R wave, S wave and T wave, and U wave exists in addition to this, and Q From the beginning of the wave to the end of the S wave may be referred to as a QRS wave. Among these waves, it is preferable to include an electrode capable of detecting at least the R wave. The R wave indicates the excitation of both the left and right ventricles, and is the wave with the largest potential difference. Also, the time from the top of the R wave to the top of the next R wave is generally referred to as R-R time (RRI), but using the formula of (heart rate) = 60 / (R-R time (seconds)) , Heart rate per minute can be calculated. That is, the heart rate can be known by detecting the R wave by providing an electrode capable of detecting the R wave. In the present invention, unless otherwise noted, the QRS wave is also included in the R wave.

The present invention is not limited to the form of the upper body clothing in the front opening, but for convenience, the present invention will be described with reference to the drawings, taking a garment for the upper body with a front opening structure that can be preferably applied.
1 to 3 is an example of a front opening garment which is an example of the garment of the present invention. Hereinafter, an example of the front opening clothing is abbreviated as this example. In this example, the clothes are composed of basic parts consisting of the right front body 2, the left front body 3 and the back body 7, and the engagement member 13 for attaching the measuring portion support member 9 is at least the right front body 2, Comes with one of the left front body 3. The sleeve 5 may or may not be present.

  The front opening structure in the present invention is a structure in which the front body is divided into two parts, the right front and the left front, and when the right front and the left front overlap, the right may be above or the left above. May be The engagement members for engaging the left and right bodies are not particularly limited, but snap buttons and surface fasteners are easily engaged even by the elderly and care recipients, and are preferable from the viewpoint of universal design.

  The measurement unit support member 9 in the present invention is a belt-like member provided in a portion located on the skin side on the front side of the body in this example, and preferably made of a material having stretchability. The measurement unit support member is attached with an engagement member 13 for detachably engaging at least one side of both ends of the band with the clothes main body. The engaging member is not particularly limited, but a surface fastener or a snap button, preferably a resin snap button, a self-adhesive tape, or the like can be used. The use of a resin snap button is preferable because it causes less discomfort due to unevenness. It is preferable that the engaging portion on the garment body side be provided with an engaging portion skin contact for relieving discomfort due to the direct contact of the engaging member with the skin. When the engagement member is attached to both ends, the measurement unit and the measurement unit support member can be completely removed from the clothes body.

The measurement part in the present invention is a cylindrical structure which has a hole which penetrated, and has an opening in the upper and lower sides of a pipe. The measurement unit support member is disposed through the hole, and both ends of the measurement unit support member are attached to the clothes body, whereby the measurement units are attached to the clothes body with a degree of freedom.
In this example, the measuring unit is disposed at a portion located on the skin side on the front side of the body of the garment. Since the measuring unit is attached to the clothes body with freedom, even when the detection part of the measuring unit, for example, the electrode is in close contact with the skin, the clothes may pull when the wearer moves the body. Discomfort can be reduced.

Although the measuring unit has a cylindrical shape, it can also be made to be able to cut open a cylinder. For example, the engaging member may be attached to and engaged with one side of the rectangle and the side opposite to the one side to form a cylindrical shape. In this case, it becomes easy to arrange a removable electronic unit or the like used for measuring biological information inside the cylinder.
In addition, a takeout port may be provided for attaching and detaching the removable electronic unit to and from the cylinder. The electronic unit may be attached to the outside of the cylinder, but in such a case, it is preferable to wire so that the electronic unit is not on the skin side but on the opposite side of the skin side.

An electrode 10 for measuring biological information is disposed on the skin side of the measurement unit. In the present example as a preferred example, the electrode center is positioned approximately 100 mm to 180 mm approximately to the left and right from the center of the entire body, and the wiring portion 11 is disposed from the electrode toward the center of the body . In this example, an example using sheet-like electric wiring material is shown, and the wiring part is abbreviated as a rectangle for the sake of simplicity, and although it is omitted in the drawing, the insulating sheet material is used to cover other than the electrode part. Thus, the part not covered with the insulating sheet is used as the electrode part, and the part covered with the insulating sheet is used as the wiring part.
In the present invention, as another example, an electrode material and a wire made of a conductive fiber material or the like may be used. As the conductive fiber material, carbon paste, a conductive rubber sheet, a conductive plastic sheet or the like can be preferably arranged on the surface of the electrode portion in contact with the skin to optimize the electrical contact impedance with the skin. .
A stainless steel snap hook 12 is attached as a connector to a portion corresponding to the chest center of the left and right wiring parts, and is connected to the removable electronic unit via the connector.

A reinforcing material can be inserted inside the tubular measuring part to reinforce the strength of the connector part. The contact point between the snap hook and the wiring portion is crimped, but it is preferable to electrically reinforce the conductive adhesive, low temperature solder, or the like so as to ensure the electrical connection. It is also a preferred embodiment to sew with metal wire or conductive fiber.

In the present invention, as a preferable example, a skin contact is disposed on the skin side of the measurement unit, particularly on the skin side of the portion overlapping the connector and the detachable electronic unit, and the connector and the detachable electronic unit have irregularities simultaneously It is possible to reduce the discomfort of touching the skin directly.
The skin destination may be disposed on the skin side in the vicinity where the electronic unit of the measurement unit is attached. The skin patch has an area sufficient to cover at least the connector of the electrode portion. Although the raw material of the said skin covering is not specifically limited, The raw material which has softness | flexibility and cushion-made things, such as a foaming urethane sheet and a foaming rubber sheet, is preferable. A foamed chloroprene rubber sheet or the like used for a wet suit or the like is a material that can be preferably used. Furthermore, an insulating reinforcing material may be disposed on the connector side of the measurement unit for reinforcing the connector portion and for insulating protection. A material preferably used as a reinforcing material is a polyurethane sheet, a silicone rubber sheet, and other synthetic rubber sheets and natural rubber sheets.

The above has described the front opening garment as an example of the present invention. The present invention is not limited to the front opening clothing, and as long as it is a clothing, it can be widely applied to men and women.
The clothing of the present invention can be applied to clothing for armor used in various sports, martial arts, work sites, guards and the like. Further, the present invention can be applied as hospital clothes and care clothes in which there are many cases where a caregiver or a medical worker removes clothes when the wearer sleeps.
Furthermore, in the present invention, for the convenience of description, the description has been made for persons such as a subject, a wearer, and a care recipient within the specification, but the present invention is not limited to clothing for measuring biological information for humans. The present invention can be applied to all land based vertebrates including mammals such as pets and livestock.

In the present invention, the main material (base material) constituting the garment is a fabric made of a fiber material. Examples of the fabric include woven fabrics, knitted fabrics and non-woven fabrics, and further, resin-coated, resin-impregnated coated fabrics and the like can be used as the base material. In addition, a synthetic rubber sheet represented by chloroprene can also be used as the base material. The fabric used in the present invention preferably has stretchability capable of repeating 10% or more of stretching repeatedly. Moreover, it is preferable that the base material of this invention has 50% or more of breaking elongation. The base material of the present invention may be a cloth base, a ribbon, a tape, a braid, a mesh, or a sheet-fed cloth cut from the base.
When the fabric is a woven fabric, for example, plain weave, twill weave, satin weave, etc. can be exemplified. When the fabric is a knit, for example, plain knitting and its deformation, deer knitting, Amundsen knitting, lace knitting, eyelet knitting, yarn knitting net, pile knitting, rib net, rib knitting, turtle shell knitting, blister knitting, Milan rib knitting, Double picket knitting, single picket knitting, crosswise knitting, heliborne knitting, punch rome knitting, basket knitting, tricot knitting, half tricot knitting, satin tricot knitting, double tricot knitting, quins cord knitting, striped soccer knitting, russell knitting, The tulle mesh knitting, and their variations and combinations can be exemplified. The fabric may be a non-woven fabric made of an elastomeric fiber or the like.

The fiber material in the present invention is not particularly limited, and examples of natural fibers include cotton, wool and hemp, and examples of chemical fibers include nylon, acryl, polyester and polyurethane. Each of these may be used alone or may be blended at an arbitrary ratio. The fiber material of the clothing for measuring biological information of the present invention is preferably blended with a cotton material at a weight ratio of 25% or more. More preferably, the material having stretchability is blended at a weight ratio of 5% or more. The preferred blend material is a blend of cotton and polyurethane, a blend of cotton, polyester and polyurethane. It is preferable that especially the fiber raw material of the said measurement part sets it as the raw material which contains cotton 35% or more of a weight ratio.
The fabric made of the fiber material constituting the clothes of the present invention may be either woven or knitted (knitted), but in the case of the front opening garment exemplified in the present example, it is preferable to mainly make the knitted fabric.

In the present invention, the material of the measurement unit support member preferably has 10% or more of stretchability. The stretchability of the material in the present invention is a value obtained by the fabric test method for woven and knitted fabrics according to JIS L 1096: 2010.
It is preferable that the raw material of the measurement part support member of this invention is a raw material which has a coefficient of friction to such an extent that a measurement part which is a cylinder shape does not fall out of a measurement part support member. The material of the measuring unit support member preferably has a coefficient of friction of 0.5 to 0.7 with the material inside the cylinder of the measuring unit. More preferably, it is preferable that one surface of the measurement section support member in the form of a strip has a high coefficient of friction, and the opposite surface has a low coefficient of friction of 0.01 to 0.5. This is because if the coefficient of friction is high on both surfaces and it is not slippery, the friction between the measuring part and the measuring part supporting member feels too much, and the free movement of the measuring part supporting member is impeded. It is more preferable to use a nanofiber belt as a belt of a measurement part.
The coefficient of friction of the measurement unit support member can be evaluated by the following method. In addition, the back and front of the belt-like form was defined as the less slippery side, and the slippery side was defined as the back.

<Method of measuring friction coefficient>
The average coefficient of friction MIU was measured with a KES-SE surface tester. N = 5 measurements with 5 pieces of each sample.
・ Friction element: Standard (fingerprint type) 1 cm × 1 cm
・ Friction force sensitivity: H
・ Sample movement speed: 1 mm / sec
-Load: 25 gf / cm ²
・ Measurement environment: 20 ° C, 55% RH
The evaluation method of the coefficient of friction between the measurement unit support member and the fabric is shown below.
The average friction coefficient MIU was measured by a KES-SE surface tester with the fabric attached to the friction element. N = 3 measurements with 3 pieces of each sample.
・ Friction element: Standard (fingerprint type) 1 cm × 1 cm
・ Friction force sensitivity: H
・ Sample movement speed: 1 mm / sec
-Load: 25 gf / cm ²
・ Measurement environment: 20 ° C, 55% RH

  As a material used for the electrical wiring and / or electrode in the present invention, a metal foil, a conductive fabric, a stretchable conductor sheet, etc. can be used. In the electrode portion, an electrode surface layer may be provided as needed. The wiring portion is preferably covered with an insulating cover layer, preferably a stretchable insulating cover layer. In addition, a base layer may be provided on the boundary between the electrode and the wiring, to improve adhesion and to provide insulation.

The metal foil used as the electrical wiring in the present invention has a thickness of 50 μm or less, preferably 25 μm or less, more preferably 15 μm or less, still more preferably 8 μm or less, still more preferably 4 μm or less, and 0.08 μm or more It is preferable that it is at least one or more metal foils selected from copper foil, phosphor blue copper foil, nickel plated copper foil, tin plated copper foil, nickel / gold plated copper foil, aluminum foil, silver foil and gold foil.
These metal foils can be used as mud images by conventional methods such as electrolytic method, electroless method, rolling method, vapor deposition method, sputtering method and the like. Such a metal foil can be processed into a predetermined pattern shape by an etching method, a lift-off method, an additive method, a punching method, a laser cutting method or the like.

Geometrical redundancy in the present invention refers to a path Y which is longer than the shortest distance X with respect to the shortest distance X between the two points when two points A and B are defined in space. By connecting two points using, it is possible to maintain the connection state with a margin even when the distance between the two points is extended.
Here the redundancy factor is
Redundancy factor = Y / X
Defined by Here, the length is the length of a line passing through the center of a line having a width.
The redundancy coefficient in the present invention is 1.41. The above is preferable, 1.8 or more is more preferable, 2.2 or more is more preferable, and 2.8 or more is more preferable. In order to increase the redundancy coefficient, metal foils may be arranged in a zigzag or sinusoidal shape, repeatedly in a horseshoe shape.

  The metal foil having such a zigzag pattern preferably forms a laminate of a stretchable sheet such as a rubber sheet, a urethane sheet or a silicone rubber sheet and a metal foil as an example, and then removes unnecessary portions of the metal foil by a subtractive method. Can be processed with a predetermined pattern. The subtractive method is synonymous with the etching method used in a general printed wiring board manufacturing method. The stretchable sheet may also serve as a base layer, and may function as part of the base layer.

  When a metal foil is used as an electrode in the present invention, preferably, the metal foil surface is preferably a metal such as chromium, molybdenum, tungsten which is not easily oxidized and deteriorated due to plating of noble metal such as gold, silver, platinum, rhodium, ruthenium or passivation. It can be protected by plating with nickel, or corrosion resistant alloy. An electrode surface protective layer can also be provided by printing carbon paste or the like on the electrode surface. Alternatively, it can be covered with a stretchable conductive composition composed of a conductive filler and a flexible resin.

In the present invention, conductive yarn (including conductive yarn and conductive fiber) can be used as the wiring. It is preferable to use the wiring by the conductive yarn in combination with the electrode using the conductive fabric. The conductive yarn in the present invention refers to a yarn having a resistance of 100 Ω or less per 1 cm of fiber length. Here, the conductive yarn is a generic name of conductive fibers, fiber bundles of conductive fibers, twisted yarns obtained from fibers containing conductive fibers, braided yarns, spun yarns, and mixed yarns. The conductive yarn of the present invention includes metal-coated chemical fibers, metal-coated natural fibers, chemical fibers coated with conductive oxide, natural fibers coated with conductive oxide, carbon-based conductive material ( Chemical fibers coated with graphite, carbon, carbon nanotubes, graphene, etc., natural fibers coated with a carbon-based conductive material, chemical fibers coated with a conductive polymer, natural fibers coated with a conductive polymer Etc. can be exemplified. In this type of conductive yarn, a polymer film obtained by coating a polymer film with one or more conductive materials selected from metal, carbon conductive material, conductive metal oxide, conductive polymer 800 μm or less in width Thin slit conductive thin film slit.
A conductive fiber obtained by spinning a polymer obtained by kneading one or more conductive materials selected from metal, carbon conductive material, conductive metal oxide, and conductive polymer as the conductive yarn in the present invention Can be used.
Furthermore in the present invention. Fine metal wires having a thickness of 250 μm or less, preferably 120 μm or less, more preferably 80 μm or less, and still more preferably 50 μm or less can be used as the conductive fiber or conductive yarn. Furthermore, in the present invention, a conductive yarn obtained by supporting and impregnating a conductive filler, a conductive polymer and the like in a fiber bundle such as microfiber nanofibers can be used.
In the present invention, it is particularly preferable to use at least one or more conductive yarns selected from metal-coated chemical fibers, fiber bundles impregnated with a conductive polymer, and fine metal wires having a thickness of 50 μm or less.
It is preferable that the wiring by the conductive yarn has redundancy. Redundancy can be provided by a method such as embroidering conductive yarn in a zigzag, or incorporating conductive yarn in a knit, making loops in the conductive yarn portion to ensure redundancy, and using knit fabric itself in a wiring manner, etc. .

In the present invention, a conductive fabric can be used as an electrode. The conductive fabric in the present invention is a generic term for a fiber structure having conductivity. As an example of the conductive fabric of the present invention, a woven fabric, a knitted fabric, or a non-woven fabric composed of fibers including conductive yarns (conductive yarns, including conductive fibers) can be used. Further, in the present invention, a conductive fabric can be made by embroidering a conductive yarn on a nonconductive fabric. In addition, it is possible to use a fiber structure obtained by impregnating a non-conductive cloth with a solution of a conductive polymer, or a solution of a composition containing a conductive filler and a binder resin, and drying.
It is preferable to use a fiber structure impregnated with a conductive polymer as the conductive fabric in the present invention. In addition, the conductive fabric of the present invention is a conductive fabric in which the fiber structure is impregnated with the conductive polymer by applying a dispersion in which a conductive polymer and a binder are dispersed in a solvent. It is preferable to use In the invention, as the conductive polymer, a mixture of poly (3,4-ethylenedioxythiophene) and polystyrene sulfonic acid can be preferably used. In the present invention, preferably, the conductive fabric used for the electrode is a woven or knitted fabric, and the woven or knitted fabric has a fabric weight of less than 50 g / m 2 or more than 300 g / m 2. The fabric used for the electrode of the present invention comprises synthetic fiber multifilaments, and at least a part of the synthetic fiber multifilaments is an ultrafine filament having a fineness of less than 30 dtex, or a fineness of more than 400 dtex, and a single yarn fineness It is preferable that it is a synthetic fiber multifilament which is 0.2 dtex or less.

In the present invention, a stretchable conductor layer (or a stretchable conductor layer sheet) can be used as a material of the electrode and the wiring. The stretchable conductor layer refers to a layer that is stretchable and is made of a material having a resistivity of 1 × 10 ⁰ Ωcm or less. The stretchable conductor layer of the present invention has stretchability. Stretchability in the present invention means that 10% or more of stretching can be repeated repeatedly while maintaining conductivity. Furthermore, the stretchable conductor layer of the present invention preferably has a breaking elongation of 40% or more, preferably 50% or more, more preferably 80% or more, by the conductor layer alone. Furthermore, the stretchable conductor layer of the present invention preferably has a tensile modulus of 10 to 500 MPa. A material capable of forming a stretchable conductor layer having such stretchability is referred to as a stretchable conductor composition.
The stretchable conductor composition can be obtained via the conductive paste described below. Hereinafter, the conductive paste which is one of the implementation means of the component of the present invention will be described. The conductive paste is composed of at least conductive particles, a stretchable resin, and a solvent.

The conductive particles of the present invention are particles having a particle diameter of 100 μm or less and made of a substance having a specific resistance of 1 × 10 ⁻¹ Ωcm or less. Examples of the substance having a specific resistance of 1 × 10 ⁻¹ Ωcm or less include metals, alloys, carbon, doped semiconductors, conductive polymers, and the like. The conductive particles preferably used in the present invention are metals such as silver, gold, platinum, palladium, copper, nickel, aluminum, zinc, lead, tin and the like, brass, bronze, white copper, alloy particles such as solder, silver-coated copper and the like Hybrid particles, metal-plated polymer particles, metal-plated glass particles, metal-coated ceramic particles, etc. can be used.

  In the present invention, it is preferable to use flaky silver particles or amorphous aggregated silver powder. Although the particle diameter of the flake-like powder is not particularly limited, it is preferable that the average particle diameter (50% D) measured by the dynamic light scattering method is 0.5 to 20 μm. More preferably, it is 3 to 12 μm. When the average particle size exceeds 15 μm, the formation of fine wiring becomes difficult, and in the case of screen printing or the like, clogging occurs. When the average particle size is less than 0.5 μm, in low loading, the particles can not be in contact with each other, and the conductivity may be deteriorated. The particle diameter of the irregularly shaped agglomerated powder is not particularly limited, but it is preferable that the average particle diameter (50% D) measured by the light scattering method is 1 to 20 μm. More preferably, it is 3 to 12 μm. When the average particle size exceeds 20 μm, the dispersibility is reduced and it becomes difficult to paste. If the average particle size is less than 1 μm, the effect as an agglomerated powder may be lost, and good conductivity may not be maintained at low loading.

The flexible resin in the present invention includes thermoplastic resins, thermosetting resins, rubber and the like having an elastic modulus of 1 to 1000 MPa, but rubber is preferable in order to develop the stretchability of the film. As the rubber, nitrile group-containing rubber such as urethane rubber, acrylic rubber, silicone rubber, butadiene rubber, nitrile rubber and hydrogenated nitrile rubber, isoprene rubber, sulfurized rubber, styrene butadiene rubber, butyl rubber, chlorosulfonated polyethylene rubber, ethylene propylene Rubber, vinylidene fluoride copolymer and the like can be mentioned. Among these, nitrile group-containing rubber, chloroprene rubber and chlorosulfonated polyethylene rubber are preferable, and nitrile group-containing rubber is particularly preferable. The elastic modulus in the present invention is preferably in the range of 3 to 600 MPa, more preferably 10 to 500 MPa, and still more preferably 30 to 300 MPa.
The rubber containing a nitrile group is not particularly limited as long as it is a rubber or an elastomer containing a nitrile group, but nitrile rubber and hydrogenated nitrile rubber are preferable. Nitrile rubber is a copolymer of butadiene and acrylonitrile, and when the amount of bound acrylonitrile is large, the affinity to metal increases, but the rubber elasticity contributing to the stretchability decreases conversely. Accordingly, the amount of bound acrylonitrile in the acrylonitrile butadiene copolymer rubber is preferably 18 to 50% by mass, and particularly preferably 40 to 50% by mass.
The blending amount of the flexible resin in the present invention is 7 to 35% by mass, preferably 9 to 28% by mass, and more preferably 12 to 20% by mass, based on the total of the conductive particles and the flexible resin. The solvent is not limited, and a known organic solvent or aqueous solvent may be used.

The underlayer according to the present invention is a layer responsible for insulation on the base side of the wiring portion. The term "insulation" as used herein includes mechanical, chemical and biological insulation in addition to electrical insulation, and requires a function to insulate the conductor layer from moisture, chemical substances and biological substances transmitted through the substrate.
The underlayer of the present invention is preferably a flexible polymeric material. As the flexible polymer material, materials called so-called rubber and elastomer can be used. As the rubber and elastomer according to the present invention, resin materials exemplified as the flexible resin used for the stretchable conductor composition can be preferably used.
The underlayer of the present invention preferably has stretchability capable of repeating 10% or more of stretching repeatedly. The underlayer of the present invention preferably has a breaking elongation of 50% or more. Furthermore, the base layer of the present invention preferably has a tensile modulus of 10 to 500 MPa.
The undercoat layer of the present invention is preferably applied on the substrate via a liquid form such as a coating liquid, an immersion liquid, a printing ink, a printing paste or a slurry state. It is also possible to form a sheet in a separate process in advance and to bond it to the cloth by a method such as hot pressing.

  The electrical wiring of the present invention is preferably covered by an insulating cover coat layer. The cover coat layer can be made of a stretchable resin material or the like as the base layer.

  The removable electronic unit in the present invention has a function of receiving and measuring at least an electric signal obtained from an electrode in contact with a living body through a wire and a connector, and more preferably an arithmetic function, a display function, a memory function, and a communication function. It is a small electronic unit having In the present invention, it is preferable to use a removable electronic unit having a function of communicating a biosignal AD converted by the Bluetooth (registered trademark) function or the like to an external device.

EXAMPLES Hereinafter, the present invention will be more specifically described by way of examples. However, the present invention is of course not limited by the following examples, and appropriate modifications may be made as long as the present invention can be applied to the purpose. Of course, implementation is also possible, and all of them are included in the technical scope of the present invention.
The insulating layer forming resin and the conductive paste used in the following examples were prepared as follows.

[Adjustment of conductive paste]
Couteron KYU-1 (glass transition temperature-35 ° C) manufactured by Sanyo Chemical Industries, Ltd. as a binder, fine diameter silver powder SPH 02 J (average particle diameter 1.2 μm) manufactured by Mitsui Metal Mining Co., Ltd. as silver particles, Lion specialty as carbon particles · Conductivity for forming a stretchable conductor in ketjen black EC 600 JD manufactured by Chemicals, using butyl carbitol acetate as a solvent, and blending 10 parts by mass of a binder, 70 parts by mass of silver particles, 1 part by mass of carbon particles, and 19 parts by mass of a solvent I adjusted the paste. First, the binder resin is dissolved in a solvent having a half amount of a predetermined amount of solvent, metal-based particles and carbon-based particles are added to the obtained solution, and after pre-mixing, it is dispersed by a three roll mill. did.
The elastic conductor layer (elastic conductor sheet) obtained by screen-printing the obtained elastic conductor-forming paste so as to have a thickness of 25 μm and drying at 100 ° C. for 20 minutes has an initial specific resistance Is 250 μΩ · cm and has stretchability to maintain conductivity even after repeating 20% elongation 100 times.

[Preparation of stretchable carbon paste]
According to the composition shown in Table 2, a carbon paste for an electrode protective layer was prepared.
40 parts by mass of nitrile butadiene rubber resin having a glass transition temperature of -19 ° C., 20 parts by mass of ketjen black EC 300 J manufactured by Lion Specialty Chemicals Co., Ltd., 50 parts by mass of ethylene glycol monoethyl ether acetate as a solvent It was dispersed by a three roll mill to obtain a stretchable carbon paste.

A urethane sheet (corresponding to an insulating cover layer) of a predetermined shape in which the electrode portion and the connector portion are cut out is temporarily bonded to a PET release sheet whose surface is treated with a silicone-based release agent, and the electrode portion is stretchable. Carbon paste is screen-printed, elastic conductive paste is printed in a predetermined pattern from the electrode portion to the connector position, and a double-sided hot melt sheet (corresponding to the insulation base layer) is laminated to cover the urethane sheet to release the release sheet. Electrodes and wires were formed on top.
Then, it is formed on the previously obtained release sheet at a predetermined position of the measurement section of the front opening garment having the structure shown in FIGS. 1 to 5 which is made of a knit fabric using polyester-cotton-polyurethane blend spinning. The electrode and the wire were overlapped (so that the double-sided hot melt sheet side touches the fabric of the measuring unit), and heated and pressed by a hot press to transfer the electrode and the wiring together with the insulating base layer and the insulating cover layer to the measuring unit. Thereafter, a reinforcing material was placed at a predetermined position so as to obtain the cross-sectional structure shown in FIG. 6, a snap hook as a connector was attached, and a skin pad was attached to obtain a front opening garment having the configuration of the present invention.
The appearance photograph of the obtained front opening clothing is shown in FIG. 6, FIG. 7, and FIG.

The friction coefficient (MIU) at the time of using a nanofiber belt and a rubber belt as a raw material of a measurement part support member which is an example of clothing for living body information measurement in the present invention in Table 1 is shown.
Table 2 shows the friction coefficient in the combination of the measurement part support member which is an example of the clothing for biological information measurement in the present invention, and cloth. The dough contents of Table 2 are shown in Table 3 here.

As described above, the clothing for measuring biological information according to the present invention can be applied to a wide range of men's and women's clothing, and clothing for armor used in various sports, martial arts, workplaces, etc. It can be applied to Further, the present invention can be applied as hospital clothes and care clothes in which there are many cases where a caregiver or a medical worker removes clothes when the wearer sleeps. Furthermore, the clothing for measuring biological information according to the present invention does not have to move the arms greatly at the time of attachment / detachment by opening it in front, and it can be attached / detached even in the lying posture. It is possible to provide clothes for measuring biological information excellent in removability, to wear clothes for measuring biological information more conveniently, and it is expected to greatly contribute to the industry.
Furthermore, although the present invention has been described for persons, such as a subject, a wearer, and a care recipient, for convenience of explanation in the specification, the present invention is not limited to clothing for measuring biological information for humans, The present invention can be applied to all terrestrial living vertebrates including mammals such as pets and livestock.

DESCRIPTION OF SYMBOLS 1 clothing for measuring biological information 2 right front body 3 left front body 4 front opening structure 5 sleeve 6 front body engaging member 7 back body 8 measuring portion 9 measuring portion support member 10 electrode portion 11 wiring portion 12 connector 13 measuring portion support member engagement Member 14 removable electronic unit

Claims (9)

at least,
A measuring unit of a tubular structure having a flexible fabric as a substrate;
The clothes body,
Flexible band-shaped measuring unit support member,
A clothing for measuring biological information, comprising:   The clothing for measuring biological information according to claim 1, wherein both band ends of the belt-like measurement unit support member are detachably attached to the clothes main body.   The band end of one side of the belt-like measuring part support member is detachably attached to the clothes body, and the other band end is attached so as not to be detachable. Clothing for measuring biological information as described.   The living body according to any one of claims 1 to 3, wherein the belt-like measurement unit support member is attached to the clothes main body in a state of penetrating the cylinder of the measurement unit of the cylindrical structure. Clothing for measuring information.   The clothing for living body information measurement according to any one of claims 1 to 4, wherein the garment body portion has a front opening structure, and the left and right bodies in the front opening structure have engaging members. ,
The clothing for measuring biological information according to any one of claims 1 to 5, wherein the measurement unit has a plurality of electrodes in direct contact with the skin of the subject.   The biological information measuring garment according to any one of claims 1 to 6, wherein the degree of extension of the measurement unit support member is 10% or more.   The clothing for living body information measurement according to any one of claims 1 to 7, wherein the clothes main body has an opening and closing part.   The clothing for living body information measurement according to any one of claims 1 to 8, wherein the clothing main body is a clothing applied to the upper body of a person.