JP7273240B2 - Electrode sheet, biological information measuring device, and method for manufacturing electrode sheet - Google Patents

Description

The technology of the present disclosure relates to an electrode sheet, a biological information measuring device, and a method for manufacturing an electrode sheet.

A multipolar living body comprising a plurality of electrode element portions formed on the surface of a base sheet and a conductive adhesive gel layer provided on each electrode element portion as a detection device for detecting weak electric potential emitted from the human body. Electrodes are known (see, for example, JP-A-9-313454). This multipolar bioelectrode is used in combination with a measuring device when measuring bioinformation such as electrocardiogram and myoelectricity.

A multipolar bioelectrode disclosed in Japanese Patent Application Laid-Open No. 9-313454 includes a terminal portion connected to each electrode element portion. The terminal portion is formed integrally with the electrode element portion, and the conductive adhesive gel layer is formed for each electrode element portion. The electrical contacts of the measuring device are brought into contact with the terminal portion, whereby the measuring device and the multipolar bioelectrode are electrically connected. In addition, the electrode element section ensures electrical continuity with the subject's skin, which is the object of measurement, via the conductive adhesive gel layer.

However, the conductive adhesive gel layer is easily peeled off by perspiration or the like. In Japanese Unexamined Patent Publication No. 9-313454, the electrode element section secures conduction with the subject's skin through the conductive adhesive gel layer. becomes unstable. In addition, when the sticking position moves due to peeling of the conductive adhesive gel layer, the position of the electrode element portion also moves.

Naturally, when the conduction state becomes unstable, noise increases. On the other hand, misalignment of the electrode element portion also causes noise. This is because, if the position of the electrode element portion changes from the initial position during measurement, the intervals between the plurality of electrode elements will change, causing variations in measured values. Thus, noise is generated in the measured value of biometric information due to the peeling of the conductive adhesive gel layer.

Noise caused by peeling of the conductive adhesive gel layer becomes a problem especially in the following cases. For example, there is a case where the measurement is continued over a relatively long period of time in order to grasp the transition of the biometric information of the subject who is leading a daily life. In this case, since the multipolar bioelectrode is worn for a relatively long period of time, the amount of perspiration increases, and the conductive adhesive gel layer tends to peel off accordingly.

An object of the technology according to the present disclosure is to provide an electrode sheet, a biological information measuring device, and a method for manufacturing an electrode sheet that can suppress noise in measured values even when measurement is performed for a relatively long time. do.

In order to achieve the above object, an electrode sheet according to a first aspect of the present disclosure includes a sheet base material having first openings and having insulating properties, and a second opening having the same outer shape as the sheet base material. An adhesive layer having an insulating property having a size, a non-gel-like adhesive layer having an insulating property, and a plurality of electrode portions provided separately from each other within the outer edge of the adhesive layer, the sheet base an electrode portion in which the skin of the object to be measured is in direct contact with the first surface on the side opposite to the material, and the electrical contact of the measuring device is in contact with the second surface on the side of the sheet substrate through at least the first opening; At both ends of the adhesive layer, a gap is provided between the outer edge of the adhesive layer and the outer edge of the electrode portion.

In the electrode sheet of the above aspect, the sheet base material, the electrode part, and the adhesive layer are laminated in this order, and the first surface of the electrode part faces the second opening of the adhesive layer. A region exposed through the second opening in may be in contact with the skin.

In the electrode sheet of the above aspect, the sheet base material, the adhesive layer, and the electrode portion are laminated in this order, and the second surface of the electrode portion faces the second opening of the adhesive layer. In (1), the areas exposed through the first openings of the sheet base material and the second openings of the adhesive layer may be in contact with electrical contacts.

The electrode sheet of the aspect described above may include an insulating layer disposed on the first surface side of each of the plurality of electrode portions and insulating between the plurality of electrode portions. Although the material of the insulating layer is not particularly limited, the material should have a volume resistivity of 1×10 ⁷ Ω·m or more.

In the electrode sheet of the aspect described above, the adhesive layer may be composed of an acrylic adhesive.

In the electrode sheet of the aspect described above, the sheet base material may be made of a stretchable material.

In the electrode sheet of the aspect described above, the sheet substrate may be made of a material having a tensile elastic modulus of 10 Mpa or more and 2000 Mpa or less.

In the electrode sheet of the above aspect, the maximum distance between the portions of the plurality of electrode portions that can be contacted by the electrical contacts of the measuring device is equal to or less than the minimum distance between the portions of the plurality of electrode portions that can be contacted by the skin. good too.

In the electrode sheet of the above aspect, the electrode part is at least one selected from silver, silver chloride, gold, copper, iron, aluminum, magnesium, nickel, chromium, titanium, platinum, tin, zinc, and alloys composed thereof. It may be made of a single metal material or a polymer material having conductivity.

In the electrode sheet of the aspect described above, the electrode portion may have adhesiveness.

In the electrode sheet of the aspect described above, the electrode portion may include a mesh material formed by forming conductive wires into a mesh shape and an adhesive interposed between the mesh materials.

In the electrode sheet of the above aspect, the electrode portion may include a mesh material in which insulating wires containing an adhesive are intertwined, and a conductive material coated on one side of the mesh material. .

In the electrode sheet of the aspect described above, the electrode portion may be made of a conductive material in which an adhesive is kneaded.

In the electrode sheet of the aspect described above, the sheet base material may be colored in skin color.

In the electrode sheet of the aspect described above, the sheet base material may be transparent, and a transparent material may be used for the electrode portion.

In the electrode sheet of the aspect described above, the sheet base material may have moisture permeability.

A biological information measuring device according to a second aspect of the present disclosure has an electrode sheet and an electrical contact that contacts the second surface of the electrode section through the first opening of the sheet base material, and the electrical contact is in contact. a measuring device attached to the electrode sheet at a.

In the biological information measuring apparatus of the aspect described above, the electrode sheet and the measuring device may be provided with an attachment/detachment mechanism that allows the electrode section and the electrical contact to be detachably brought into contact with each other.

A method for manufacturing an electrode sheet according to a third aspect of the present disclosure is a sheet base material to which a release film is adhered, the sheet base material having a first opening and having insulating properties. a step of forming a plurality of electrode portions separated from each other within the outer edge of the sheet base material and forming the plurality of electrode portions at positions partially facing the first opening; A step of forming a non-gelled and insulating adhesive layer on the surface of the sheet substrate, the adhesive layer having the same external size as the sheet substrate, wherein the outer edge of the adhesive layer and the outer edge of the adhesive layer are formed at both ends of the adhesive layer. a step of forming an adhesive layer in such a manner that a space is provided between the outer edges of the electrode portions and a plurality of electrode portions are sandwiched between the sheet substrate and the adhesive layer; and a step of peeling the release film from the sheet substrate; Prepare.

A method for manufacturing an electrode sheet according to a fourth aspect of the present disclosure is a sheet base material to which a release film is adhered, wherein the sheet base material has a first opening and has insulating properties. A step of forming an adhesive layer having the same external size as the material, a non-gel state, and having insulating properties, the step of forming an adhesive layer having a second opening communicating with the first opening; A step of forming a plurality of electrode portions at positions separated from each other and partially facing the first opening and the second opening within the outer edge of the base material and the adhesive layer, wherein at both ends of the adhesive layer, The method includes a step of forming a plurality of electrode portions in such a manner that a gap is provided between the outer edge of the adhesive layer and the outer edge of the electrode portion, and the step of peeling the release film from the sheet substrate.

According to the technique of the present disclosure, it is possible to suppress noise from entering the measured value even when the measurement is performed for a relatively long time.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the biological information measuring device of 1st Embodiment. Fig. 2 is an exploded perspective view showing an electrode sheet and a measuring device of the biological information measuring device in an exploded state; It is a perspective view which shows the back side of a measuring device. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device. It is the top view and sectional drawing which show an electrode sheet. FIG. 3 is a plan view showing electrical contacts between an electrode sheet and a measuring device of the biological information measuring device; It is a bottom view which shows an electrode sheet. It is a sectional view showing the whole biological information measuring device composition. It is explanatory drawing which shows the manufacturing method of an electrode sheet, Comprising: It is a figure which shows a 1st process. It is explanatory drawing which shows the manufacturing method of an electrode sheet, Comprising: It is a figure which shows a 2nd process. It is explanatory drawing which shows the manufacturing method of an electrode sheet, Comprising: It is a figure which shows a 3rd process. It is explanatory drawing which shows the manufacturing method of an electrode sheet, Comprising: It is a figure which shows a 4th process. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 2nd Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 3rd Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 4th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 5th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 6th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 7th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 8th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 9th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 10th Embodiment. It is an exploded perspective view which shows the state which decomposed|disassembled the biological information measuring device of 11th Embodiment. It is the top view and sectional drawing which show the electrode sheet of the biological information measuring apparatus of 11th Embodiment. FIG. 20 is a plan view showing electrical contacts between an electrode sheet and a measuring device of the biological information measuring apparatus of the eleventh embodiment; It is sectional drawing which shows the whole biological information measuring device structure of 11th Embodiment. FIG. 20 is an explanatory view showing the method for manufacturing the electrode sheet of the biological information measuring device of the eleventh embodiment, and showing the first step; FIG. 20 is an explanatory view showing the method of manufacturing the electrode sheet of the biological information measuring device of the eleventh embodiment, and showing the second step; FIG. 20 is an explanatory view showing the manufacturing method of the electrode sheet of the biological information measuring device of the eleventh embodiment, and showing the third step; FIG. 20 is an explanatory diagram showing the manufacturing method of the electrode sheet of the biological information measuring device of the eleventh embodiment, and is a diagram showing the fourth step. FIG. 20 is an explanatory view showing the manufacturing method of the electrode sheet of the biological information measuring device of the eleventh embodiment, and showing the fifth step; FIG. 22 is an exploded perspective view showing a state in which the biological information measuring device of the twelfth embodiment is disassembled; FIG. 22 is a perspective view showing a cover layer used in the biological information measuring device of the thirteenth embodiment; It is sectional drawing which shows the biological information measuring device of 14th Embodiment. It is the enlarged plan view which expanded the top view which shows the electrode sheet used for the biological information measuring device of 14th Embodiment, and one part. FIG. 21 is a cross-sectional view showing a biological information measuring device of a fifteenth embodiment; FIG. 20 is an exploded perspective view showing a part of an electrode sheet used in the biological information measuring device of the sixteenth embodiment; FIG. 20 is a cross-sectional view showing part of an electrode sheet used in a biological information measuring device of a sixteenth embodiment; FIG. 22 is an exploded perspective view showing part of an electrode sheet used in the biological information measuring device of the seventeenth embodiment; FIG. 21 is a cross-sectional view showing part of an electrode sheet used in a biological information measuring device of a seventeenth embodiment; FIG. 20 is a cross-sectional view showing the overall configuration of a biological information measuring device according to an eighteenth embodiment; FIG. 20 is a cross-sectional view showing the overall configuration of a biological information measuring device according to a nineteenth embodiment;

Embodiments of an electrode sheet and a biological information measuring device according to the present disclosure will be described below with reference to the drawings. In each drawing, in order to facilitate visual recognition of the electrode sheet, the film thickness of each layer and the ratio thereof are changed as appropriate, and the actual film thickness and ratio are not necessarily reflected.

[First embodiment]
As shown in FIG. 1 as an example, a biological information measurement apparatus 10 includes an electrode sheet 12 and a measurement device 14 (see FIG. 2). The electrode sheet 12 is in contact with the skin (for example, skin surface) 16 of the living body (for example, human) as the measurement target on the opposite side of the measuring device 14 . The biological information measurement device 10 measures biological information by bringing the electrode sheet 12 into contact with the skin 16 . As biological information, for example, electrocardiogram, myoelectricity, or electroencephalogram is measured.

As shown in FIG. 2, the electrode sheet 12 can be separated from the measuring device 14, and the measuring device 14 is attached to the electrode sheet 12 during use. The measuring device 14 is attached to one side of the electrode sheet 12 (for example, the side opposite to the side that contacts the skin 16). The measuring device 14 is attached at a position covering the two first openings 31B of the cover layer 31 of the electrode sheet 12 . The electrode sheet 12 has a rectangular shape (for example, a rectangular shape) in plan view. In addition, the measuring device 14 has a rectangular shape in plan view. The measuring device 14 is attached to the electrode sheet 12 so that the longitudinal direction of the measuring device 14 is, for example, along the longitudinal direction of the electrode sheet 12 (see FIG. 1).

As shown in FIG. 2, the measuring device 14 has a rectangular housing 21 . A rectangular protruding portion 21B is formed in the central portion of the surface 21A of the housing 21 . In the first embodiment, the measurement device 14 is configured to wirelessly communicate with an external device (not shown) via a communication unit (not shown) such as an antenna. Note that the measuring device may be configured to be electrically connected by wire instead of being configured to communicate wirelessly. In this case, an output terminal for outputting to an external device is provided on the housing of the measuring device.

FIG. 3 is a perspective view showing the back side of the measuring device 14. FIG. As shown in FIG. 3, the measuring device 14 includes two openings 21E formed in the rear surface 21D of the housing 21, and connecting terminals 23 as an example of electrical contacts protruding from the openings 21E. As an example, the opening 21E has a circular shape in a plan view. As an example, the connection terminal 23 has a circular shape in a plan view and a convex shape in a side view. The connection terminal 23 protrudes from the inside of the housing 21 to the outside of the housing 21 through the opening 21E. In addition, although the connecting terminal 23 has a flat projecting portion, the projecting portion may be changed to another shape such as a semicircular shape. In the first embodiment, the two connection terminals 23 are arranged on both longitudinal sides of the measuring device 14 .

In the measuring device 14 , a detection circuit (not shown) connected to the two connection terminals 23 is provided inside the housing 21 . The detection circuit detects, for example, a potential difference between electrode portions 32 (to be described later) with which the two connection terminals 23 are in contact with each other. The detection circuit includes, for example, a plurality of circuits that perform signal processing such as amplification of the detected potential signal, digital conversion of the amplified signal, and various calculations (including filtering, for example). The detection circuit outputs the processed signal, which has undergone various processes, as data representing biological information. The detection circuit stores the data in the internal memory of the main body, or wirelessly outputs the data to an external device (not shown) through the communication unit. Note that the measuring device 14 may have a function of transmitting to an external device by wireless communication.

The measuring device 14 includes two seal portions 24 attached to both longitudinal ends of the rear surface 21</b>D of the housing 21 . The seal portion 24 has adhesiveness and can be adhered to the cover layer 31 of the electrode sheet 12 . The sealing portion 24 is made of, for example, a polymeric material that is adhesive at room temperature. The measuring device 14 is attached to the cover layer 31 of the electrode sheet 12 by the sealing portion 24 in a state where the connecting terminals 23 and the electrode portion 32 are in contact with each other. By bonding the seal portion 24 to the cover layer 31 of the electrode sheet 12, the connection terminal 23 and the electrode portion 32 are fixed in contact with each other by physical force.

As shown in FIGS. 4 to 7, the electrode sheet 12 is provided on the insulating cover layer 31 and the first surface 131A of the cover layer 31 (for example, the surface opposite to the side on which the measuring device 14 is attached). and a plurality of electrode portions 32 provided at intervals. Further, the electrode sheet 12 includes an adhesive layer 33 provided on the cover layer 31 on the side of the plurality of electrode portions 32 . In the first embodiment, the cover layer 31, the electrode portion 32, and the adhesive layer 33 are laminated in this order. The adhesive layer 33 has insulating properties and includes second openings 33B that expose portions of the plurality of electrode portions 32 . The first embodiment has two electrode portions 32 . The cover layer 31 also has two first openings 31B through which parts of the two electrode portions 32 are exposed. Here, the cover layer 31 is an example of a sheet base material.

The cover layer 31 is composed of a rectangular sheet portion 31A, and two circular first openings 31B are formed side by side along the longitudinal direction in the central portion of the sheet portion 31A. The cover layer 31 is made of an insulating polymeric material or the like.

The cover layer 31 has flexibility and is capable of bending deformation in the thickness direction of the cover layer 31 .

Moreover, the cover layer 31 is preferably made of a material having elasticity. Examples of elastic materials include polyurethane (PU), polyethylene (PE), silicone resin, polyparaxylylene (Parylene: registered trademark), polytetrafluoroethylene (PTFE), ethylene-vinyl acetate copolymer resin (EVA ) and the like. Examples of polyethylene (PE) include medium density polyethylene (MDPE) and low density polyethylene (LDPE). As the silicone resin, for example, polydimethylsiloxane (PDMS) or the like is used.

Moreover, the cover layer 31 may be made of a biocompatible material. Biocompatible materials may include, for example, polyethylene (PE), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), polystyrene (PS), and the like.

The thickness of the cover layer 31 is preferably 5 μm or more and 30 μm or less, more preferably 8 μm or more and 25 μm or less, and even more preferably 10 μm or more and 20 μm or less.

The tensile modulus of the cover layer 31 is preferably 10 Mpa or more and 2000 Mpa or less. Furthermore, the tensile modulus of the cover layer 31 is more preferably 50 Mpa or more and 1500 Mpa or less, and even more preferably 100 Mpa or more and 1000 Mpa or less. As the thickness and tensile modulus of the cover layer 31 increase, the durability improves, but the flexibility decreases. If the flexibility is reduced, when the electrode sheet 12 having the cover layer 31 is pressed against the skin 16, it may not be able to follow the movement of the skin 16 due to its hardness, resulting in discomfort. By setting the thickness and tensile modulus of the cover layer 31 within the ranges described above, a member having appropriate durability and flexibility for use as the electrode sheet 12 can be obtained. Furthermore, by setting the thickness of the cover layer 31 within the above range to 20 μm or less, skin respiration becomes easier than when the thickness of the cover layer 31 is thicker than 20 μm.

Here, the tensile modulus is the value obtained by dividing the tensile stress applied to the material within the elastic limit by the strain produced in the material. The tensile modulus of the cover layer 31 is measured according to JIS K7113:1995. Specifically, for example, using Shimadzu Autograph AGS-J (5KN) manufactured by Shimadzu Corporation, the tensile modulus is measured at a tensile speed of 100 mm/min.

It is preferable that the cover layer 31 is colored in skin color. This is because the electrode sheet 12 becomes inconspicuous when worn on the skin 16 . The cover layer 31 may be colored, for example, by kneading a skin-colored coloring agent into the resin material constituting the cover layer 31, or by printing, painting, or applying a skin-colored coloring agent on the surface of the cover layer 31. The colored portion may be formed by plating or the like.

Moreover, it is preferable that the second surface 131B of the cover layer 31 on the side opposite to the electrode portion 32 and the adhesive layer 33 is roughened. Since the surface of the cover layer 31 is roughened, reflection of light on the cover layer 31 can be suppressed.

In the first embodiment, the cover layer 31 is made of a stretchable material such as polyurethane (PU), and the cover layer 31 is colored like skin color.

The electrode portion 32 is a conductive sheet-like body or plate-like body. As an example, the electrode portion 32 has a rectangular shape. Each of the electrode portions 32 is arranged within the outer edges of the cover layer 31 and the adhesive layer 33, and is separated from each other within the outer edges. Further, the respective electrode portions 32 are arranged symmetrically with respect to the center in the longitudinal direction of the electrode sheet 12, for example.

As shown in FIG. 5, the electrode portion 32 has a first surface 32A opposite to the cover layer 31 and a second surface 32B on the cover layer 31 side. As also shown in FIGS. 6A and 6B, in the electrode portion 32 of the first embodiment, a portion of the second surface 32B faces the first opening 31B of the cover layer 31 and a portion of the first surface 32A. The part faces the second opening 33B of the adhesive layer 33 . A region of the second surface 32B of the electrode portion 32 facing the first opening 31B of the cover layer 31 is exposed through the first opening 31B. An electrical contact of the measuring device 14 contacts the second surface 32B of the electrode portion 32 through the first opening 31B of the cover layer 31 . Also, in the first surface 32A of the electrode portion 32, the area facing the second opening 33B of the adhesive layer 33 is exposed through the second opening 33B. As shown in FIG. 7, on the first surface 32A of the electrode section 32, the area exposed through the second opening 33B is in direct contact with the skin 16 to be measured. This direct contact causes the electrode portion 32 to conduct with the skin 16 .

As shown in FIG. 6A , a space is provided between the outer edge of the cover layer 31 and the outer edge of each electrode portion 32 at both ends of the cover layer 31 . That is, the outer edge of the cover layer 31 is arranged further outside the outer edges of the two electrode portions 32 in plan view. In plan view, the length of the cover layer 31 in the longitudinal direction and in the direction perpendicular to the longitudinal direction is longer than the range in which the two electrode portions 32 are arranged in the longitudinal direction and the direction perpendicular to the longitudinal direction. In other words, the cover layer 31 has portions protruding outside the respective electrode portions 32 .

The electrode portion 32 is made of silver (Ag), silver chloride (AgCl), gold (Au), copper (Cu), iron (Fe), aluminum (Al), magnesium (Mg), nickel (Ni), chromium (Cr). , titanium (Ti), platinum (Pt), tin (Sn), zinc (Zn), and at least one metal material selected from alloys composed thereof, or a polymer material having conductivity is preferred. By selecting one of these materials for the electrode portion 32, the electrode portion 32 is printed or transferred onto the cover layer 31, and the adhesive layer 33 is printed or transferred thereon, thereby forming the electrode portion 32. It can be formed integrally with the cover layer 31 and the adhesive layer 33 .

In the first embodiment, the electrode portion 32 is made of at least one metal material selected from silver (Ag), silver chloride (AgCl), and gold (Au).

Various conductors may be used as the material of the electrode portion 32 . For example, the electrode portion 32 may use Mo, an alloy thereof, or the like. Also, the electrode section 32 may use a conductive film selected from indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide, zinc oxide, and the like. Also, the electrode portion 32 may be made of an organic conductor such as a conductive polymer. As for the method of forming the electrode portion 32, film formation by a vapor phase deposition method (e.g., vacuum film formation method) such as vacuum deposition and sputtering, screen printing, or a method of adhering a foil formed of the above materials is used. you can

The thickness of the electrode portion 32 is preferably 3 μm or more and 30 μm or less, more preferably 5 μm or more and 25 μm or less, and even more preferably 8 μm or more and 20 μm or less. By setting the thickness of the electrode portion 32 within the above range, the flexibility of the electrode sheet 12 can be ensured. be able to.

The measuring device 14 is attached to the second surface 131B of the cover layer 31 (the surface opposite to the adhesive layer 33 in the first embodiment). With the measuring device 14 attached to the cover layer 31, the connection terminals 23 of the measuring device 14 are brought into contact with the second surfaces 32B of the two electrode portions 32 through the first openings 31B of the cover layer 31 (FIG. 7). That is, the electrode sheet 12 of the first embodiment is directly connected to the connection terminal 23 of the measuring device 14 through the first opening 31B of the cover layer 31 without using a separate conductive member for the electrode portion 32 and the connection terminal 23. It is configured to be electrically connectable.

The adhesive layer 33 has a rectangular shape, and includes an adhesive portion 33A bonded to the first surface 131A of the cover layer 31 and the first surface 32A of the electrode portion 32 by adhesion or the like, and two second openings 33B. ing. The adhesive layer 33 is made of an insulating adhesive material and is attached to the skin 16 . The two second openings 33B are provided on both longitudinal sides of the adhesive portion 33A. As described above, the second opening 33B of the adhesive layer 33 faces part of the first surface 32A of the electrode section 32 and exposes part of the first surface 32A. In the first surface 32A of the electrode portion 32, the area facing the adhesive layer 33 is insulated from the skin 16 to be measured, while the area exposed through the second opening 33B of the adhesive layer 33 is, as described above, Direct contact with skin 16 (see FIG. 7).

The adhesive layer 33 has the same outer size as the cover layer 31 . Here, "same" is a concept including "substantially the same" that allows a tolerance of about plus or minus 5%. Therefore, the adhesive layer 33 may be larger than the outer size of the cover layer 31 or smaller than the outer size of the cover layer 31 within the tolerance range.

As shown in FIG. 6B , a space is provided between the outer edge of the adhesive layer 33 and the outer edge of each electrode portion 32 at both ends of the adhesive layer 33 . That is, the outer edge of the adhesive layer 33 is arranged further outside the outer edges of the two electrode portions 32 in plan view. The lengths of the adhesive layer 33 in the longitudinal direction and in the direction orthogonal to the longitudinal direction in plan view are longer than the range in which the two electrode portions 32 are arranged. In other words, the adhesive layer 33 has portions protruding outside the respective electrode portions 32 . In addition, as described above, the electrode portions 32 are separated from each other in the longitudinal direction of the cover layer 31 and the adhesive layer 33 . Therefore, as shown in FIG. 6B, each electrode portion 32 is surrounded by the adhesive layer 33 .

The adhesive layer 33 is made of a non-gel and insulating adhesive material. Here, the "non-gel-like adhesive material" refers to an adhesive material other than a gel-like adhesive material that retains water. Even if the water content is 20% by weight or less, it means an adhesive material. The water content of the adhesive material is more preferably 10% by weight or less, and even more preferably 6% by weight or less.

The non-gel-like adhesive material is preferably made of, for example, a polymeric material having viscoelasticity at room temperature. As the polymeric material having viscoelasticity, for example, an acrylic pressure-sensitive adhesive, a urethane-based pressure sensitive adhesive, or the like can be used. Further, as a polymer material having viscoelasticity, for example, polyvinyl alcohol (PVA), cyanoethylated polyvinyl alcohol (cyanoethylated PVA), polyvinyl acetate, polyvinylidene chloride core acrylonitrile, polystyrene-vinylpolyisoprene block copolymer, polyvinyl Materials including at least one of methyl ketone, polybutyl methacrylate, and the like can be used.

A non-gel-like adhesive material does not easily lose its adhesive strength even when it absorbs sweat, compared to a gel-like adhesive material that contains a relatively large amount of water. Therefore, by using a non-gel-like adhesive material as the adhesive layer 33, even when the electrode sheet 12 is attached to the perspiring skin 16 for a long time, the gel-like adhesive material is used. In comparison, the electrode sheet 12 is less likely to peel off.

In addition, by selecting an acrylic adhesive or the like that is less irritating to the skin 16 as the adhesive layer 33, low sensitization to the skin 16 can be achieved.

The thickness of the adhesive layer 33 is preferably 4 μm or more and 30 μm or less, more preferably 6 μm or more and 20 μm or less, and even more preferably 8 μm or more and 15 μm or less. By setting the thickness of the adhesive layer 33 within the above range, it is possible to secure appropriate flexibility for use as the electrode sheet 12 .

As shown in FIG. 7, when measuring the biological information of the skin 16, which is the object of measurement, by using the biological information measuring device 10, the adhesive layer 33 of the electrode sheet 12 is attached to the skin 16 (see arrow A1). As a result, regions of the first surfaces 32A of the two electrode portions 32 that face the second openings 33B of the adhesive layer 33 come into contact with the skin 16 (see arrow B1). Furthermore, the sealing portion 24 (see FIG. 3) of the measuring device 14 is adhered to the cover layer 31 of the electrode sheet 12 . After attaching the measuring device 14 to the electrode sheet 12 , the electrode sheet 12 attached with the measuring device 14 may be attached to the skin 16 .

In the biological information measuring device 10, in order to reduce the overall size of the device, the maximum distance d1 between the parts of the two electrode portions 32 that can be contacted by the connection terminals 23 of the measuring device 14 is It is desirable that the minimum distance d2 or less between the parts with which the skin 16 can come into contact.

The maximum distance d1 between the portions of the two electrode portions 32 that can be contacted by the connection terminal 23 of the measuring device 14 is preferably 5 mm or more and 30 mm or less, more preferably 7 mm or more and 28 mm or less, and even more preferably 9 mm or more and 25 mm or less. By setting the maximum distance d1 within the above range, the size of the measuring device 14 can be reduced.

The minimum distance d2 between the parts of the two electrode parts 32 that can be contacted by the skin 16 is preferably 30 mm or more and 100 mm or less, more preferably 40 mm or more and 90 mm or less, and even more preferably 50 mm or more and 80 mm or less. By setting the minimum distance d2 within the above range, it is possible to accurately detect the potential difference from the two electrode portions 32 .

Here, an example of a method for manufacturing the electrode sheet 12 will be described with reference to FIGS. 8A to 8D.

As shown in FIG. 8A, a release film 40 is adhered to the second surface 131B of the cover layer 31. As shown in FIG. The cover layer 31 is composed of an insulating sheet portion 31A, and has two first openings 31B in the central portion of the sheet portion 31A. The release film 40 is composed of, for example, a resin sheet having a release layer (not shown) that can be separated from the cover layer 31 .

As shown in FIG. 8B, two electrode portions 32 are formed on the surface of the sheet portion 31A of the cover layer 31 (for example, the first surface 131A opposite to the release film 40). For example, by printing a conductive material on the surfaces of the release film 40 and the cover layer 31 by screen printing or the like, a part of the surface of the cover layer 31 and a part of the release film 40 through the first openings 31B of the cover layer 31 are printed. , two electrode portions 32 are formed. As a result, the second surface 32B of the electrode portion 32 is brought into contact with the cover layer 31 and the release film 40 . That is, two electrode portions 32 are formed on the cover layer 31 and the release film 40 so as to cover the entire first opening 31B. In FIG. 8C, the thickness of the cover layer 31 is shown to be thicker than the actual thickness in order to make the configuration easier to understand. The part is formed on the release film 40 . Two electrode portions 32 may be formed at predetermined positions of the cover layer 31 and the release film 40 by transferring a conductive material.

As shown in FIG. 8C, the adhesive layer 33 is formed on the surface of the sheet portion 31A of the cover layer 31 (for example, the first surface 131A opposite to the release film 40) and the first surfaces 32A of the two electrode portions 32. . For example, the adhesive layer 33 is formed by printing an adhesive on the surface of the sheet portion 31A and the first surfaces 32A of the two electrode portions 32 by screen printing or the like. The adhesive layer 33 includes an adhesive portion 33A provided on the surface of the sheet portion 31A and two second openings 33B exposing a portion of the first surface 32A of the electrode portion 32 . Note that the adhesive layer 33 may be formed at predetermined positions on the surface of the sheet portion 31A and the first surfaces 32A of the two electrode portions 32 by transferring an adhesive. In FIG. 8C, the thicknesses of the adhesive layer 33, the electrode portion 32, and the cover layer 31 are shown to be thicker than the actual thicknesses in order to make the configuration easier to understand. Since the actual thickness is sufficiently thin, the adhesive layer 33 is formed substantially uniformly on the surface of the sheet portion 31A and the first surfaces 32A of the two electrode portions 32. As shown in FIG.

As shown in FIG. 8D, the peeling film 40 is peeled off from the cover layer 31 and the like. Thereby, the electrode sheet 12 is manufactured. When the electrode sheet 12 is actually distributed as a product, the release film 40 as the release sheet is attached to the cover layer 31 and the release sheet (not shown) is attached to the adhesive layer 33. A product of the electrode sheet 12 is completed. Then, when the electrode sheet 12 is used, the release sheet under the adhesive layer 33 is removed from the product of the electrode sheet 12, and then the release film 40 on the cover layer 31 is removed.

A measuring device 14 is attached to the cover layer 31 of the electrode sheet 12 (see FIG. 7). As a result, the connection terminals 23 of the measuring device 14 come into contact with the second surfaces 32B of the two electrode portions 32, respectively.

(Action and effect)
Next, the operation and effects of the first embodiment will be described.

In the electrode sheet 12, two electrode portions 32 are provided on the first surface 131A of the cover layer 31 so as to be separated from each other. Furthermore, the first surface 131A of the cover layer 31 and the first surfaces 32A of the two electrode portions 32 opposite to the cover layer 31 are provided with the adhesive layer 33 having the second openings 33B. By attaching the adhesive layer 33 to the skin 16 to be measured, the skin 16 comes into direct contact with the first surface 32A of the electrode section 32 opposite to the cover layer 31 (see FIG. 7). A connection terminal 23 , which is an example of an electrical contact of the measuring device 14 , is in contact with the second surface 32</b>B of the electrode portion 32 on the cover layer 31 side through the first opening 31</b>B of the cover layer 31 .

As a result, the measuring device 14 detects the potential difference generated on the skin 16 by the two electrode portions 32 of the electrode sheet 12, and further measures biological information based on the detected potential difference.

In the electrode sheet 12 described above, the adhesive layer 33 to be attached to the skin 16 is composed of a non-gel-like and insulating adhesive material. The adhesive layer 33 is less likely to peel off due to sweat or the like, as compared with the conventional example in which the adhesive layer 33 is attached to the skin 16 using the adhesive layer. Further, since the adhesive layer 33 has substantially the same external size as the cover layer 31 , the adhesive layer 33 is arranged up to the outer edge of the cover layer 31 , so that the electrode sheet 12 as a whole is less likely to peel off from the skin 16 . In addition, since the electrode sheet 12 is difficult to peel off, compared to the conventional example in which the conductive adhesive gel layer that is easier to peel than the non-gel adhesive layer 33 secures the conduction with the skin 16, the conductive state is stabilized. .

The electrode portion 32 is provided within the outer edge of the adhesive layer 33 , and a space is provided between the outer edge of the adhesive layer 33 and the outer edge of the electrode portion 32 at both end portions of the adhesive layer 33 . Since the periphery of the electrode part 32 is fixed by the adhesive layer 33, the displacement of the electrode part 32 is also suppressed. Since the conventional conductive adhesive gel layer is easier to peel than the non-gel-like adhesive layer 33, it is easily misaligned. Since the electrode portion 32 whose periphery is fixed by the adhesive layer 33 is less likely to be misaligned, the technology of the present disclosure has a stable conduction state compared to a conventional example using a conductive adhesive gel layer as the electrode portion and the adhesive layer. do.

For this reason, with the electrode sheet 12, even when the measurement is performed for a relatively long time, noise in the measured value caused by the peeling of the electrode portion 32 is suppressed compared to the conventional example.

In the electrode sheet 12, the cover layer 31, the electrode portion 32, and the adhesive layer 33 are laminated in this order. , and the area exposed through the second opening 33B on the first surface 32A contacts the skin 16. As shown in FIG. Therefore, by attaching the adhesive layer 33 to the skin 16 , the electrode portion 32 can be brought into contact with the skin 16 more reliably.

Further, in the electrode sheet 12, the cover layer 31 is made of a stretchable material. Therefore, with the adhesive layer 33 of the cover layer 31 attached to the skin 16 , the cover layer 31 can be stretched and contracted so as to follow the movement of the skin 16 .

In the electrode sheet 12, the cover layer 31 is made of a material having a tensile modulus of 10 Mpa or more and 1000 Mpa or less. Therefore, with the adhesive layer 33 attached to the skin 16 , the cover layer 31 can be expanded and contracted so as to follow the movement of the skin 16 .

In the electrode sheet 12, the electrode portion 32 is at least selected from silver, silver chloride, gold, copper, iron, aluminum, magnesium, nickel, chromium, titanium, platinum, tin, zinc, and alloys composed thereof. It is made of a single metal material or a conductive polymer material. Accordingly, for example, by forming the electrode portion 32 on the cover layer 31 by printing or transferring, the electrode portion 32 can be formed integrally with the cover layer 31 .

Moreover, in the electrode sheet 12, the cover layer 31 is colored in flesh color. That is, since the color of the cover layer 31 is close to that of the skin 16 , the cover layer 31 is hardly visible when the electrode sheet 12 is attached to the skin 16 .

The biological information measuring apparatus 10 also includes an electrode sheet 12 and a measuring device 14 having connection terminals 23 . In the biological information measuring device 10, the connection terminal 23 is brought into contact with the second surface 32B of the two electrode portions 32 on the cover layer 31 side through the first opening 31B of the cover layer 31, and the electrode portion 32 on the opposite side of the cover layer 31 is connected. 32 A of 1st surfaces contact the skin 16 through the 2nd opening 33B of the adhesion layer 33. As shown in FIG. As described above, the biological information measuring device 10 uses the electrode sheet 12 that is more difficult to peel off than the conventional example, so the positional displacement of the electrode section 32 is suppressed. Therefore, in the biological information measuring device 10, noise in the measured value caused by peeling of the electrode section 32 is suppressed as compared with the conventional example even when the measurement is performed for a relatively long time.

In addition, the method for manufacturing the electrode sheet 12 includes the cover layer 31 (an example of the sheet base material) to which the release film 40 is adhered, the surface of the cover layer 31 having the first openings 31B and having insulating properties. 2, a step of forming a plurality of electrode portions 32 separated from each other is provided. The above process is a process of forming a plurality of electrode portions 32 at positions separated from each other within the outer edge of the cover layer 31 and at positions partially facing the first opening 31B. The method of manufacturing the electrode sheet 12 also includes a step of forming on the surface of the cover layer 31 an adhesive layer 33 that has the same external size as the cover layer 31 and is non-gel and insulating. In the above process, a space is provided between the outer edge of the adhesive layer 33 and the outer edge of the electrode part 32 at both ends of the adhesive layer 33, and the plurality of electrode parts 32 are sandwiched between the cover layer 31. This is the step of forming the adhesive layer 33 . Furthermore, the method for manufacturing the electrode sheet 12 includes a step of peeling the release film 40 from the cover layer 31 .

As described above, in the method for manufacturing the electrode sheet 12, the electrode part 32 is formed on the release film 40 at the portion including the first opening 31B of the cover layer 31, and the adhesive layer 33 is formed. Since the electrode sheet 12 is peeled off from the cover layer 31, there is no complicated process, and the electrode sheet 12 can be easily manufactured.

[Second embodiment]
Next, the biological information measuring device of the second embodiment will be described. The basic configuration of the biological information measuring device of the second embodiment is similar to that of the biological information measuring device 10 of the first embodiment. In the second embodiment, when the same constituent elements, members, etc. as those in the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 9 shows a biological information measuring device 50 of the second embodiment. In the biological information measuring apparatus 50 of the second embodiment, the mounting direction of the measuring device 52 with respect to the electrode sheet 12 is changed and the position of the connection terminal 23 is changed accordingly. It is the same as the information measuring device 10 . As shown in FIG. 9, the biological information measuring device 50 includes an electrode sheet 12 and a measuring device 52. As shown in FIG. The measuring device 52 has two connection terminals 23 on both sides in a direction orthogonal to the longitudinal direction. Other configurations of the measuring device 52 are the same as those of the measuring device 14 of the first embodiment.

The measuring device 52 is attached to the electrode sheet 12 so that its longitudinal direction is orthogonal to the longitudinal direction of the electrode sheet 12 . Although not shown, the measuring device 52 has seal portions at both ends in the longitudinal direction, and the seal portions are attached to the skin 16 (see FIG. 1). Although not shown, the connection terminals 23 of the measuring device 52 contact the second surface 32B of the electrode section 32 through the first openings 31B of the cover layer 31 while the measuring device 52 is attached to the skin 16 .

In the biological information measuring device 50 described above, it is possible to obtain the same effects as those of the first embodiment.

[Third Embodiment]
Next, the biological information measuring device of the third embodiment will be described. The basic configuration of the biological information measuring device of the third embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the third embodiment, when the same constituent elements, members, etc. as in the first embodiment are provided, the same reference numerals are given, detailed description thereof is omitted, and differences will be mainly described.

FIG. 10 shows a biological information measuring device 60 of the third embodiment. In the biological information measuring device 60 of the third embodiment, only the configuration of the adhesive layer 63 of the electrode sheet 62 is changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment. As shown in FIG. 10, the adhesive layer 63 has a rectangular shape and includes a sheet-like adhesive portion 63A and one second opening 63B provided in the central portion of the adhesive portion 63A. The second opening 63</b>B has a rectangular shape and is arranged such that the longitudinal direction of the second opening 63</b>B is the longitudinal direction of the adhesive layer 63 .

The outer edge of the adhesive layer 63 is arranged further outside the outer edges of the two electrode portions 32 in a plan view, and portions not in contact with the electrode portions 32 are provided at both ends of the adhesive layer 63 . In the second opening 63B of the adhesive layer 63, a part of the first surface 32A (not shown) of the two electrode portions 32 opposite to the cover layer 31 and a region of the cover layer 31 between the two electrode portions 32 are provided. is exposed. The material of the adhesive layer 63 is the same as that of the adhesive layer 33 of the first embodiment.

In the biological information measuring device 60 , in the state where the adhesive layer 63 is attached to the skin 16 , in the first surface 32A of the electrode section 32 , the area exposed to the second opening 63B of the adhesive layer 63 is the skin 16 and the skin 16 . Conduction is achieved by contact.

In the biological information measuring device 60 described above, it is possible to obtain the same effects as those of the first embodiment.

In addition, in the biological information measuring device 60 of the third embodiment, unlike the first embodiment, the second opening 63B exposing the two electrode portions 32 is composed of one opening, so that the electrode portions 32 face each other. The adhesive layer 33 does not exist in the direction of the direction. However, even in the third embodiment, since non-gel-like adhesive layers 33 with higher adhesive force than in the conventional art are present in three directions around each electrode portion 32, each electrode portion 32 can be prevented from being peeled off and misaligned.

[Fourth Embodiment]
Next, the biological information measuring device of the fourth embodiment will be described. The basic configuration of the biological information measuring device of the fourth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the fourth embodiment, when the same constituent elements, members, etc. as in the first embodiment are provided, the same reference numerals are given, detailed description thereof is omitted, and differences are mainly described.

FIG. 11 shows a biological information measuring device 70 of the fourth embodiment. In the biological information measuring device 70 of the fourth embodiment, the configurations of the electrode portion 73 and the adhesive layer 74 of the electrode sheet 72 are changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment. . As shown in FIG. 11, the electrode sheet 72 includes the cover layer 31, two electrode portions 73 provided separately from each other on the surface of the cover layer 31 opposite to the side on which the measuring device 14 is attached, and the cover layer 31. and an adhesive layer 74 provided on the side of the plurality of electrode portions 73 in 31 .

The two electrode portions 73 are arranged symmetrically with respect to the center in the longitudinal direction of the electrode sheet 72 . The electrode portion 73 includes a first surface 32A opposite to the cover layer 31 (not shown in FIG. 11, but similar to the first surface 32A in the first embodiment (see FIG. 5, etc.)), the cover layer 31 and a second surface 32B on the side. The electrode portion 73 includes a circular portion 73A and an extension portion 73B extending radially outward from a portion of the circular portion 73A. The extending portion 73B extends in a direction facing the longitudinal central portion of the electrode sheet 72 with respect to the circular portion 73A. The second surface 32B of the electrode portion 73 faces the first opening 31B of the cover layer 31, and the vicinity of the extending portion 73B of the second surface 32B is exposed from the first opening 31B.

The adhesive layer 74 has a rectangular shape and includes a sheet-like adhesive portion 74A and two second openings 74B provided on both sides in the longitudinal direction of the adhesive portion 74A. In the fourth embodiment, the second opening 74B has a substantially circular shape, and the inner diameter is smaller than the outer diameter of the circular portion 73A of the electrode portion 73 .

The outer edge of the adhesive layer 74 is arranged further outside the outer edges of the two electrode portions 73 in a plan view, and portions not in contact with the electrode portions 73 are provided at both ends of the adhesive layer 74 . The second opening 74B of the adhesive layer 74 and the first surface 32A of the electrode portion 73 face each other. On the first surface 32A of the electrode portion 73, a portion of the circular portion 73A is exposed through the second opening 74B. The material of the adhesive layer 74 is the same as that of the adhesive layer 33 of the first embodiment.

In the biological information measuring device 70 , in the state where the adhesive layer 74 is attached to the skin 16 , the area exposed to the second opening 74B of the adhesive layer 74 on the first surface 32A of the electrode section 73 is the same as the skin 16 . Conduction is achieved by contact. Also, the connection terminals 23 of the measuring device 14 come into contact with the extending portions 73B of the electrode portions 73 through the first openings 31B of the cover layer 31, respectively.

In the biological information measuring device 70 described above, it is possible to obtain the same effects as those of the first embodiment. Further, in the biological information measuring device 70, the second opening 74B of the adhesive layer 74 is circular and smaller in size than the rectangular second opening 33B of the adhesive layer 33 of the first embodiment. The layer 74 is more difficult to peel off from the skin 16 , and the electrode section 73 is less likely to be displaced from the skin 16 .

The shape of the electrode portion 73 of the fourth embodiment differs from that of the first embodiment and the like in that the main portion is circular and not rectangular. Thus, the shape of the electrode portion 73 is not limited to a rectangular shape. In the fourth embodiment, the shape of the electrode portion 73 is different from that in the first embodiment. However, the relationship in which the second surface 32B faces the first opening 31B of the cover layer 31 and the first surface 32A faces the second opening 74B of the adhesive layer 74 is the same as in the first embodiment. .

Similar to the fourth embodiment, the fifth embodiment shown in FIG. 12 to the tenth embodiment shown in FIG. It is a modified example of the first embodiment, such as a mode with a different number. However, also in the fifth to tenth embodiments, as in the fourth embodiment, the second surface 32B of each electrode portion faces the first opening of the cover layer, and the first opening of each electrode portion faces the first opening. The facing relationship between the surface 32A and the second opening of the adhesive layer is the same as in the first embodiment.

[Fifth embodiment]
Next, the biological information measuring device of the fifth embodiment will be described. The basic configuration of the biological information measuring device of the fifth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the fifth embodiment, when the same constituent elements, members, etc. as in the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 12 shows a biological information measuring device 80 of the fifth embodiment. In the biological information measuring device 80 of the fifth embodiment, only the configuration of the adhesive layer 83 of the electrode sheet 82 is changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment. As shown in FIG. 12, the electrode sheet 82 includes the cover layer 31, two electrode portions 32 provided on the surface of the cover layer 31 opposite to the side on which the measuring device 14 is attached, and two electrode portions 32 on the cover layer 31. and an adhesive layer 83 provided on the electrode portion 32 side.

The adhesive layer 83 has a rectangular shape and includes a sheet-like adhesive portion 83A and a plurality of second openings 83B provided on both sides in the longitudinal direction of the adhesive portion 83A. The adhesive layer 83 is configured symmetrically with respect to the center in the longitudinal direction. In the fifth embodiment, the second openings 83B are square-shaped, and four second openings 83B are located on both sides of the adhesive portion 83A in the longitudinal direction and in the direction perpendicular to the longitudinal direction. They are arranged in two rows and two columns. In the adhesive layer 83, two adjacent second openings 83B are partitioned by a bar-shaped partition portion 83C.

In plan view, the outer edge of the adhesive layer 83 is arranged further outside the outer edges of the two electrode portions 32, and both ends of the adhesive layer 83 are provided with portions that do not contact the electrode portions 32. . The first surface of the electrode portion 32 opposite to the cover layer 31 is exposed to the four second openings 83B on both sides of the adhesive layer 83 in the longitudinal direction. The material of the adhesive layer 83 is the same as that of the adhesive layer 33 of the first embodiment.

In the biological information measuring device 80 described above, it is possible to obtain the same effects as those of the first embodiment. In addition, in the biological information measuring device 80, the adhesive layer 83 is provided with the partition portion 83C that exerts adhesive force between the four second openings 83B. , the electrode portion 32 is less likely to be displaced from the skin 16 .

[Sixth embodiment]
Next, the biological information measuring device of the sixth embodiment will be described. The basic configuration of the biological information measuring device of the sixth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the sixth embodiment, when the same constituent elements, members, etc. as those of the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 13 shows a biological information measuring device 90 of the sixth embodiment. In the biological information measuring device 90 of the sixth embodiment, only the configuration of the adhesive layer 93 of the electrode sheet 92 is changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment. As shown in FIG. 13, the electrode sheet 92 includes the cover layer 31, two electrode portions 32 provided on the surface of the cover layer 31 opposite to the side on which the measuring device 14 is attached, and two electrode portions 32 on the cover layer 31. and an adhesive layer 93 provided on the electrode portion 32 side.

The adhesive layer 93 has a rectangular shape and includes a sheet-like adhesive portion 93A and a plurality of second openings 93B provided on both sides in the longitudinal direction of the adhesive portion 93A. The adhesive layer 93 is configured symmetrically with respect to the center in the longitudinal direction. In the sixth embodiment, the second openings 93B have an elongated rectangular shape, and four rows of four second openings 93B are arranged close to each other in the longitudinal direction of the adhesive portion 93A on both sides in the longitudinal direction of the adhesive portion 93A. are arranged side by side. As an example, the longitudinal direction of the second opening 93B is perpendicular to the longitudinal direction of the adhesive layer 93 . In the adhesive layer 93, the adjacent second openings 93B are partitioned by partitions 93C.

The outer edge of the adhesive layer 93 is arranged further outside the outer edges of the two electrode portions 32 in a plan view, and both ends of the adhesive layer 93 are provided with portions that do not contact the electrode portions 32 . The first surface of the electrode portion 32 opposite to the cover layer 31 is exposed to the four second openings 93B on both sides of the adhesive layer 93 in the longitudinal direction. The material of the adhesive layer 93 is the same as that of the adhesive layer 33 of the first embodiment.

In the biological information measuring device 90 described above, it is possible to obtain the same effects as those of the first embodiment. Further, in the biological information measuring device 90, since the partition part 93C that exerts adhesive force is provided between the four second openings 93B of the adhesive layer 93, the adhesive layer 93 is more difficult to peel off from the skin 16, The position of the electrode part 32 is less likely to shift with respect to the skin 16 .

[Seventh embodiment]
Next, the biological information measuring device of the seventh embodiment will be described. The basic configuration of the biological information measuring device of the seventh embodiment is similar to that of the biological information measuring device 10 of the first embodiment. In the seventh embodiment, when the same constituent elements, members, etc. as in the first embodiment are provided, the same reference numerals are given, detailed description thereof is omitted, and differences will be mainly described.

FIG. 14 shows the biological information measuring device 100 of the seventh embodiment. In the biological information measuring device 100 of the seventh embodiment, only the configuration of the adhesive layer 103 of the electrode sheet 102 is changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment. As shown in FIG. 14, the electrode sheet 102 includes a cover layer 31, two electrode portions 32 provided on the surface of the cover layer 31 opposite to the side on which the measuring device 14 is attached, and two electrode portions 32 on the cover layer 31. and an adhesive layer 103 provided on the electrode portion 32 side.

The adhesive layer 103 has a rectangular shape, and includes a sheet-like adhesive portion 103A and a plurality of second openings 103B provided in the central portion and both sides of the adhesive portion 103A in the longitudinal direction. The adhesive layer 103 is configured symmetrically with respect to the center in the longitudinal direction. In the seventh embodiment, the second openings 103B have an elongated rectangular shape, and four second openings 103B are arranged in four rows adjacent to each other in the longitudinal direction at the central portion and both sides of the adhesive portion 93A in the longitudinal direction. arranged side by side. As an example, the longitudinal direction of the second opening 103B is a direction perpendicular to the longitudinal direction of the adhesive layer 103 . In the adhesive layer 103, the adjacent second openings 103B are partitioned by partitions 103C.

The outer edge of the adhesive layer 103 is arranged further outside the outer edges of the two electrode portions 32 in a plan view, and both ends of the adhesive layer 103 are provided with portions that do not contact the electrode portions 32 . The first surface of the electrode portion 32 on the side opposite to the cover layer 31 is exposed in the second opening 103B in a part of the central portion in the longitudinal direction of the adhesive layer 103 and in the four second openings 103B on both sides in the longitudinal direction. . In addition, the cover layer 31 is exposed through the other second opening 103B in the central portion of the adhesive layer 103 in the longitudinal direction. The material of the adhesive layer 103 is the same as the adhesive layer 33 of the first embodiment.

With the biological information measuring device 100 described above, it is possible to obtain the same effects as those of the first embodiment. Further, in the biological information measuring device 100, since the partition portion 103C that exerts adhesive force is provided between the four second openings 103B of the adhesive layer 103, the adhesive layer 103 is more difficult to peel off from the skin 16, and the electrode The portion 32 is less likely to be misaligned with respect to the skin 16.例文帳に追加

[Eighth Embodiment]
Next, the biological information measuring device of the eighth embodiment will be described. The basic configuration of the biological information measuring device of the eighth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the eighth embodiment, when the same constituent elements, members, etc. as those of the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 15 shows the biological information measuring device 110 of the eighth embodiment. In the biological information measuring device 110 of the eighth embodiment, only the structure of the cover layer 113 as an example of the sheet base material of the electrode sheet 112 is changed, and the rest of the structure is the same as the biological information measuring device 10 of the first embodiment. is. As shown in FIG. 15, the electrode sheet 112 includes a cover layer 113, two electrode portions 32 provided on the surface of the cover layer 113 opposite to the side on which the measuring device 14 is attached, and two electrode portions 32 on the cover layer 113. and an adhesive layer 33 provided on the electrode portion 32 side.

The cover layer 113 includes a rectangular sheet portion 113A and one first opening 113B provided in the central portion of the sheet portion 113A. The first opening 113</b>B has a rectangular shape, and the longitudinal direction of the first opening 113</b>B is along the longitudinal direction of the cover layer 113 . The first opening 113</b>B in the cover layer 113 is formed across the two electrode portions 32 . In other words, both ends of the first opening 113B in the cover layer 113 in the longitudinal direction face the central portion of the two electrode portions 32 (that is, the central portion of the sheet portion 113A in the longitudinal direction). ing. The cover layer 113 is made of an insulating polymeric material or the like.

The portions of the second surfaces 32B of the two electrode portions 32 facing the first openings 113B of the cover layer 113 are exposed through the first openings 113B of the cover layer 113 . The connection terminals 23 of the measuring device 14 are brought into contact with the second surfaces 32B of the two electrode portions 32 through the first openings 113B of the cover layer 113, respectively.

With the biological information measuring device 110 described above, it is possible to obtain the same effects as those of the first embodiment.

[Ninth Embodiment]
Next, the biological information measuring device of the ninth embodiment will be described. The basic configuration of the biological information measuring device of the ninth embodiment is the same as that of the biological information measuring device 110 of the eighth embodiment. In the ninth embodiment, when the same constituent elements, members, etc. as those of the eighth embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 16 shows a biological information measuring device 120 of the ninth embodiment. In the biological information measuring apparatus 120 of the ninth embodiment, only the configuration of the measuring device 52 is changed, and other configurations are the same as those of the biological information measuring apparatus 110 of the eighth embodiment. As shown in FIG. 16, the biological information measuring device 120 includes an electrode sheet 112 and a measuring device 52. As shown in FIG. The measuring device 52 is the same as the measuring device 52 of the second embodiment.

The connection terminals 23 of the measuring device 52 are brought into contact with the second surfaces 32B of the two electrode portions 32 through one first opening 113B of the cover layer 113, respectively.

In the biological information measuring device 120 described above, it is possible to obtain the same effects as those of the eighth embodiment.

[Tenth embodiment]
Next, the biological information measuring device of the tenth embodiment will be described. The basic configuration of the biological information measuring device of the tenth embodiment is similar to that of the biological information measuring device 110 of the eighth embodiment. In the tenth embodiment, when the same constituent elements, members, etc. as those of the eighth embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 17 shows a biological information measuring device 140 of the tenth embodiment. In the biological information measuring device 140 of the tenth embodiment, only the configuration of the adhesive layer 143 of the electrode sheet 142 is changed, and other configurations are the same as those of the biological information measuring device 110 of the eighth embodiment. As shown in FIG. 17, the electrode sheet 142 includes the cover layer 113, two electrode portions 32 provided on the surface of the cover layer 113 opposite to the side on which the measuring device 14 is attached, and two electrode portions 32 on the cover layer 113. and an adhesive layer 143 provided on the electrode portion 32 side.

The adhesive layer 143 includes a rectangular adhesive portion 143A, two second openings 33B provided on both sides in the longitudinal direction of the adhesive portion 143A, and a third opening 143B provided in the central portion in the longitudinal direction of the adhesive portion 143A. and The second opening 33B has a substantially square shape, and the third opening 143B has a rectangular shape elongated in a direction perpendicular to the longitudinal direction of the adhesive portion 143A.

The second opening 33B of the adhesive layer 143 faces a part of the first surface 32A (not shown in FIG. 17) of the electrode section 32, and the third opening 143B of the adhesive layer 143 faces the cover layer 113. It faces the first opening 113B. A region of the first surface 32A of the electrode portion 32 exposed to the second opening 33B of the adhesive layer 143 is electrically connected by contacting the skin 16 .

With the biological information measuring device 140 described above, the same effects as those of the eighth embodiment can be obtained.

[Eleventh Embodiment]
Next, the biological information measuring device of the eleventh embodiment will be described. In the eleventh embodiment, when the same constituent elements, members, etc. as in the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 18 shows a biological information measuring device 210 of the eleventh embodiment. In the biological information measuring device 210 of the eleventh embodiment, the configuration of the electrode sheet 212 is changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment.

As shown in FIG. 18, a biological information measuring apparatus 210 includes an electrode sheet 212 and a measuring device 14 (see FIG. 2). As shown in FIGS. 18 to 21, the electrode sheet 212 includes a cover layer 231 as an insulating sheet base material, and a first surface 131A of the cover layer 231 (in the eleventh embodiment, the measuring device 14 is attached). and an adhesive layer 232 provided on the opposite side). Furthermore, the electrode sheet 212 has a plurality of electrode portions 233 and an insulating layer 234 . A plurality of electrode portions 233 are provided on the surface of the adhesive layer 232 opposite to the cover layer 231 so as to be separated from each other. The insulating layer 234 insulates between the multiple electrode portions 233 . The insulating layer 234 is provided so as to straddle the plurality of electrode portions 233 arranged at intervals. The insulating layer 234 partially covers the inner portion where each electrode portion 233 is adjacent, and exposes the outer portion of each electrode portion 233 . The electrode sheet 212 of the eleventh embodiment has two electrode portions 233 .

The cover layer 231 includes a rectangular sheet portion 231A and a rectangular first opening 231B formed in the central portion of the sheet portion 231A. Like the cover layer 31 of the first embodiment, the cover layer 231 is made of an insulating polymeric material or the like.

The adhesive layer 232 includes an adhesive portion 232A formed on the first surface 131A of the cover layer 231 (that is, the surface of the sheet portion 231A), and a first adhesive portion 232A provided at a position corresponding to the opening 231B of the sheet portion 231A in the adhesive portion 232A. 2 openings 232B. The adhesive layer 232 has substantially the same outer size as the cover layer 231 . Like the adhesive layer 33 of the first embodiment, the adhesive layer 232 is non-gel and insulating.

The electrode portion 233 has a first surface 233A on the side opposite to the cover layer 231 and a second surface 233B on the cover layer 231 side. A portion of the second surface 233</b>B of the electrode portion 233 facing the adhesive layer 232 is in contact with the adhesive layer 232 and attached to the cover layer 231 via the adhesive layer 232 . A portion of the second surface 233B of the electrode portion 233 facing the second opening 232B of the adhesive layer 232 is exposed to the first opening 231B of the cover layer 231 through the second opening 232B. Both ends of the adhesive layer 232 in the longitudinal direction are provided with portions that do not contact the electrode portions 233 . Each electrode part 233 is arranged symmetrically with respect to the center in the longitudinal direction of the electrode sheet 212 . The electrode portion 233 is made of a metal material, a conductive polymer material, or the like, like the electrode portion 32 of the first embodiment.

The outer edge of the adhesive layer 232 is provided with portions that do not contact the electrode portions 233 . That is, the outer edge of the adhesive layer 232 is arranged further outside the outer edges of the two electrode portions 233 in plan view. In the eleventh embodiment, the length of the adhesive layer 232 in the longitudinal direction and the direction orthogonal to the longitudinal direction in plan view is greater than the range in which the two electrode portions 233 are arranged in the longitudinal direction and the direction orthogonal to the longitudinal direction. long. In other words, the adhesive layer 232 has portions protruding outside the electrode portions 233 .

The measuring device 14 is attached to the second surface 131B of the cover layer 231 (the surface opposite to the adhesive layer 232 in the eleventh embodiment). With the measuring device 14 attached to the cover layer 231, the measuring device 14 is connected to the second surface 233B of the two electrode portions 233 through the first opening 231B of the cover layer 231 and the second opening 232B of the adhesive layer 232. Each terminal 23 is contacted (see FIG. 21).

The insulating layer 234 is provided on the first surfaces 233A of the two electrode portions 233 so as to straddle the two electrode portions 233 as described above. In the first surface 233A of the electrode portion 233, the portion provided with the insulating layer 234 is insulated from the skin 16, while the portion not provided with the insulating layer 234 is electrically connected by contacting the skin 16. .

The insulating layer 234 has a rectangular shape, and both ends in the longitudinal direction are in contact with the first surfaces 233A of the two electrode portions 233, respectively. The insulating layer 234 is bonded to the first surface 233A of the electrode portion 233 by adhesion or the like.

The insulating layer 234 is made of an insulating polymeric material or the like. The insulating layer 234 may be made of, for example, the same material as the polymer material forming the cover layer 231 .

Moreover, the insulating layer 234 may have adhesiveness. The insulating layer 234 may be made of, for example, the same material as the polymeric material that makes up the adhesive layer 232 .

As shown in FIG. 21, when measuring the biological information of the skin 16 with the biological information measuring device 210, the adhesive layer 232 of the electrode sheet 212 is attached to the skin 16 (see arrow A2). As a result, portions of the first surfaces 233A of the two electrode portions 233 where the insulating layer 234 is not provided come into contact with the skin 16 (see arrow B2).

In the biological information measuring apparatus 210, the maximum distance d1 between the portions of the two electrode portions 233 that can be contacted by the connection terminal 23 of the measuring device 14 is the minimum distance between the portions of the two electrode portions 233 that can be contacted by the skin 16. The distance d2 or less is desirable.

The maximum distance d1 between the portions of the two electrode portions 233 that can be contacted by the connection terminal 23 of the measuring device 14 is preferably 5 mm or more and 30 mm or less, more preferably 7 mm or more and 28 mm or less, and even more preferably 9 mm or more and 25 mm or less. By setting the maximum distance d1 within the above range, the size of the measuring device 14 can be reduced.

Also, the minimum distance d2 between the parts of the two electrode parts 233 that can be contacted by the skin 16 is preferably 30 mm or more and 100 mm or less, more preferably 40 mm or more and 90 mm or less, and even more preferably 50 mm or more and 80 mm or less. By setting the minimum distance d2 within the above range, it is possible to accurately detect the potential difference from the two electrode portions 233 .

Further, in the electrode sheet 212, the maximum distance d1 between the portions of the two electrode portions 233 that can be contacted by the connection terminal 23 of the measuring device 14 is the minimum distance between the portions of the two electrode portions 233 that can be contacted by the skin 16. Since the distance is equal to or less than d2, the size of the electrode sheet 212 can be reduced. Further, by ensuring the minimum distance d2 between the parts of the two electrode portions 233 that can be contacted by the skin 16, the potential difference detection signal can be obtained from the two electrode portions 233 with high accuracy.

Here, an example of a method for manufacturing the electrode sheet 212 will be described with reference to FIGS. 22A to 22E.

As shown in FIG. 22A, a release film 40 is adhered to the second surface 131B of the cover layer 231. As shown in FIG. The cover layer 231 is composed of an insulating sheet portion 231A, and has a first opening 231B in the central portion of the sheet portion 231A.

As shown in FIG. 22B, the adhesive layer 232 is formed on the surface of the sheet portion 231A of the cover layer 231 (in the example of FIG. 22B, the first surface 131A opposite to the release film 40). For example, the adhesive layer 232 is formed on the surface of the sheet portion 231A by printing an adhesive on the surface of the sheet portion 231A by screen printing or the like. The adhesive layer 232 includes an adhesive portion 232A provided on the surface of the sheet portion 231A and a second opening 232B provided at a position corresponding to the first opening 231B. Note that the adhesive layer 232 may be formed at a predetermined position on the surface of the sheet portion 231A by transferring an adhesive.

As shown in FIG. 22C, two electrode parts 233 separated from each other are formed on the surfaces of the release film 40 and the adhesive layer 232 . For example, by printing a conductive material on the surface of the release film 40 and the adhesive layer 232 by screen printing or the like, a part of the surface of the adhesive layer 232 and the second opening 232B of the adhesive layer 232 and the first opening 232B of the cover layer 231 are formed. Two electrode portions 233 are formed in a portion of the release film 40 through the opening 231B. As a result, part of the second surface 233</b>B of the electrode part 233 comes into contact with the adhesive layer 232 and the release film 40 . That is, two electrode portions 233 are formed on the adhesive layer 232 and the release film 40 so as to include a portion of the second opening 232B. In FIG. 22C, the thickness of the adhesive layer 232 and the cover layer 231 is shown to be thicker than the actual thickness in order to make the configuration easier to understand. , a part of the two electrode parts 233 are formed on the release film 40 . The two electrode portions 233 may be formed at predetermined positions on the adhesive layer 232 and the release film 40 by transferring a conductive material.

As shown in FIG. 22D , an insulating layer 234 is formed across the first surfaces 233A of the two electrode portions 233 . For example, by printing an insulating polymer material on the release film 40 and the first surfaces 233A of the two electrode portions 233 by screen printing or the like, the first surfaces 233A of the two electrode portions 233 and the electrode portions 233 are printed. An insulating layer 234 is formed on a part of the release film 40 through the space of . As a result, one surface of the insulating layer 234 is brought into contact with the first surfaces 233</b>A of the two electrode portions 233 and the release film 40 . That is, an insulating layer 234 for insulating between the two electrode portions 233 is formed on the release film 40 at a portion including the two electrode portions 233 . In FIG. 22D, the thicknesses of the adhesive layer 232, the cover layer 231, and the electrode section 233 are shown to be thicker than the actual thicknesses in order to make the configuration easier to understand. Since the actual thickness is sufficiently thin, part of the insulating layer 234 is formed on the release film 40 . The insulating layer 234 may be formed at predetermined positions of the first surfaces 233A of the two electrode portions 233 and the release film 40 by transferring an insulating polymer material.

As shown in FIG. 22E, the peeling film 40 is peeled off from the cover layer 231 and the like. Thereby, the electrode sheet 212 is manufactured. When the electrode sheet 212 is actually distributed as a product, the release film 40 as a release sheet is attached to the cover layer 231, and a release sheet (not shown) is attached to the electrode part 233 and the insulating layer 234 side. A product of the electrode sheet 212 is completed in the attached state. Then, when the electrode sheet 212 is used, the release sheet on the side of the electrode portion 233 and the insulating layer 234 is removed from the product of the electrode sheet 212, and the release film 40 on the side of the cover layer 231 is removed.

The measuring device 14 is attached to the cover layer 231 of the electrode sheet 212 (see FIG. 21). As a result, the connection terminals 23 of the measuring device 14 come into contact with the second surfaces 233B of the two electrode portions 233, respectively.

In the electrode sheet 212 described above, two electrode portions 233 are provided on the first surface 131A side of the cover layer 231 with an adhesive layer 232 interposed therebetween. By attaching the adhesive layer 232 to the skin 16, the skin 16 contacts the first surface 233A of the electrode portion 233 opposite to the cover layer 231 (see FIG. 21). The second surface 233B of the electrode portion 233 on the cover layer 231 side is in contact with the connection terminal 23 of the measuring device 14 through the first opening 231B of the cover layer 231 .

Thereby, in the measuring device 14, the potential difference generated in the skin 16 is detected by the two electrode portions 233 of the electrode sheet 212, and biological information is measured from the detected potential difference. Also, the eleventh embodiment has the same effect as the first embodiment as follows.

In the above-described electrode sheet 212, the adhesive layer 232 is made of a non-gel and insulating adhesive material, so compared with the conventional example using a conductive adhesive gel layer that is easily peeled off by moisture. As a result, the adhesive layer 232 is less likely to peel off due to sweat or the like. Also, since the adhesive layer 232 has substantially the same external size as the cover layer 231 , the adhesive layer 232 is arranged up to the outer edge of the cover layer 231 . Therefore, the entire electrode sheet 212 is less likely to peel off from the skin 16 . In addition, since the electrode sheet 212 is difficult to peel off, compared to the conventional example in which the conductive adhesive gel layer that is easier to peel than the non-gel adhesive layer 232 secures the conduction with the skin 16, the conductive state is stabilized. .

The electrode portion 233 is provided within the outer edges of the cover layer 231 and the adhesive layer 232, and a space is provided between the outer edge of the adhesive layer 232 and the outer edge of the electrode portion 233 at both ends of the adhesive layer 232. . Since the periphery of the electrode part 233 is fixed to the skin 16 by the adhesive layer 232, the displacement of the electrode part 233 is also suppressed. Since the conventional conductive adhesive gel layer is easier to peel than the non-gel-like adhesive layer 232, it is easily misaligned. In the eleventh embodiment, since the periphery of the electrode part 233 is fixed by the adhesive layer 232, the position of the electrode part 233 is less likely to shift. For this reason, the electrode sheet 212 has a stable conductive state compared to a conventional example in which a conductive adhesive gel layer is used as the electrode portion and the adhesive layer.

Therefore, the electrode sheet 212 suppresses noise in the measured value caused by peeling of the electrode portion 233 compared to the conventional example even when the measurement is performed for a relatively long time.

In the electrode sheet 212, the cover layer 231, the adhesive layer 232, and the electrode section 233 are laminated in this order, and the second surface 233B of the electrode section 233 faces the second opening 232B of the adhesive layer 232. there is As a result, the electrode part 233 contacts the connection terminal 23 as an electrical contact of the measuring device 14 at the exposed area through the first opening 231B of the cover layer 231 and the second opening 232B of the adhesive layer 232 on the second surface 233B. (See Figure 21). Thereby, contact between the connection terminal 23 of the measuring device 14 and the electrode portion 233 can be ensured.

In addition, in the electrode sheet 212, the outer edge of the adhesive layer 232 is arranged further outside the outer edges of the two electrode portions 233 in a plan view. 233 can be brought into contact with skin 16 .

An insulating layer 234 for insulating between the two electrode portions 233 is provided on the first surface 233A side of each of the two electrode portions 233 . By providing the insulating layer 234 , the electrode portions 233 provided at intervals are prevented from being short-circuited due to bending of the electrode sheet 212 or the like. Therefore, since the two electrode portions 233 can be reliably insulated, it is possible to suppress noise from entering the measured value.

Furthermore, in the biological information measuring device 210, the same effects as in the first embodiment can be obtained.

Moreover, the method of manufacturing the electrode sheet 212 uses the cover layer 231 (an example of the sheet base material) to which the release film 40 is adhered. Then, on the surface of the insulating cover layer 231 having the first opening 231B, an adhesive layer 232 having the same external size as the cover layer 231 and having a non-gel-like insulating property is formed. It has a process. The above process is a process of forming the adhesive layer 232 having the second openings 232B communicating with the first openings 231B on the surface of the cover layer 231 . In addition, in the method for manufacturing the electrode sheet 212, the plurality of electrode portions 233 are arranged in the outer edges of the cover layer 231 and the adhesive layer 232 so as to be separated from each other and partially face the first opening 231B and the second opening 232B. is provided. The above step is a step of forming the plurality of electrode portions 233 in such a manner that a gap is provided between the outer edge of the adhesive layer 232 and the outer edge of the electrode portion 233 at both ends of the adhesive layer 232 . Furthermore, the method of manufacturing the electrode sheet 212 includes a step of peeling the release film 40 from the cover layer 231 .

In the method for manufacturing the electrode sheet 212 described above, after forming the insulating layer 234 for insulating between the two electrode portions 233 on the portion including the two electrode portions 233 on the release film 40, the release film 40 is used as the cover layer. Since the electrode sheet 212 is separated from the electrode sheet 231, there is no complicated process, and the electrode sheet 212 can be manufactured easily.

Further, when the insulating layer 234 is formed on the electrode sheet 212 as in the eleventh embodiment, in the method of manufacturing the electrode sheet 212, two electrodes are formed on the separation film 40 at a portion including the two electrode portions 233. A step of forming an insulating layer 234 for insulating between the portions 233 is added.

In the biological information measurement device 210, the electrode sheet 212 is provided with the insulating layer 234 that does not have adhesiveness, but the insulating layer may have adhesiveness. As a result, the insulating layer of the electrode sheet 212 sticks to the skin 16, so that the displacement of the electrode portion 233 can be suppressed more effectively.

[Twelfth Embodiment]
Next, a biological information measuring device according to a twelfth embodiment will be described. The basic configuration of the biological information measuring device of the twelfth embodiment is the same as that of the biological information measuring device 210 of the eleventh embodiment. In the twelfth embodiment, when the same constituent elements, members, etc. as those of the eleventh embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 23 shows a biological information measuring device 240 of the twelfth embodiment. In the biological information measuring apparatus 240 of the twelfth embodiment, only the configuration of the measuring device 52 is changed, and other configurations are the same as those of the biological information measuring apparatus 210 of the eleventh embodiment. As shown in FIG. 23, the biological information measuring device 240 includes an electrode sheet 212 and a measuring device 52. As shown in FIG. The measuring device 52 is provided with two connection terminals 23 on both longitudinal and perpendicular sides. The configuration of the measuring device 52 is the same as the measuring device 52 of the second embodiment.

The measuring device 52 is attached to the electrode sheet 212 so that the longitudinal direction of the measuring device 52 is orthogonal to the longitudinal direction of the electrode sheet 212 . Although not shown, the measuring device 52 has seal portions at both ends in the longitudinal direction, and the seal portions are attached to the skin 16 (see FIG. 1). With the measurement device 52 attached to the skin 16, the connection terminals 23 of the measurement device 52 are connected to the second surface 233B of the electrode section 233 through the first opening 231B of the cover layer 231 and the second opening 232B of the adhesive layer 232, respectively. Contact.

With the biological information measuring device 240 described above, the same effects as those of the eleventh embodiment can be obtained.

[Thirteenth Embodiment]
Next, the biological information measuring device of the thirteenth embodiment will be described. The basic configuration of the biological information measuring device of the thirteenth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the thirteenth embodiment, when the same constituent elements, members, etc. as those of the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 24 shows a cover layer 251 as an example of the sheet base material of the thirteenth embodiment. In the biological information measuring device 10 of the thirteenth embodiment, only the structure of the cover layer 251 of the electrode sheet 12 is changed, and the rest of the structure is the same as the biological information measuring device 10 of the first embodiment. As shown in FIG. 24, the cover layer 251 includes a rectangular sheet portion 252 formed by intertwining a plurality of insulating wires 252A, and a rectangular first rectangular sheet portion 252 formed in the central portion of the sheet portion 252. and an opening 253 .

The cover layer 251 has moisture permeability. The sheet portion 252 of the cover layer 251 is composed of a nonwoven fabric member in which a plurality of insulating wires 252A are intertwined, and has a large number of holes (for example, openings). That is, the sheet portion 252 has moisture permeability due to the provision of a large number of holes. The aperture ratio of the seat portion 252 is preferably 30% or more and 90% or less, more preferably 40% or more and 80% or less, and 50% or more and 70% or less with respect to the volume of the seat portion. More preferred.

The hole diameter of the sheet portion 252 is preferably 0.1 μm or more and 100 μm or less, more preferably 0.5 μm or more and 70 μm or less, and even more preferably 10 μm or more and 50 μm or less. Moisture permeability can be ensured by setting the aperture ratio and hole diameter of the sheet portion 252 within the above ranges. By ensuring the moisture permeability of the sheet portion 252, the skin can breathe easily. Note that the sheet portion 252 may be configured in a mesh shape instead of the nonwoven fabric.

In the thirteenth embodiment, the sheet portion 252 of the cover layer 251 is made of a stretchable material. The stretchable material is the same as that of the sheet portion 31A of the first embodiment.

In the electrode sheet 12 described above, the following effects can be obtained in addition to the effects of the configuration similar to that of the first embodiment. In the electrode sheet 12 described above, the sheet portion 252 is formed in a non-woven fabric by intertwining a plurality of insulating wires 252A, so that the moisture permeability of the cover layer 251 is ensured. Therefore, the skin can breathe while the electrode part and the adhesive layer 232 provided on the cover layer 251 are attached to the skin 16 . In addition, the skin 16 is prevented from becoming stuffy inside the cover layer 251, and the wearing feeling of the electrode sheet 12 can be improved.

[14th Embodiment]
Next, the biological information measuring device of the fourteenth embodiment will be described. The basic configuration of the biological information measuring device of the fourteenth embodiment is the same as that of the biological information measuring device 210 of the eleventh embodiment. In the 14th embodiment, when the same constituent elements, members, etc. as those of the 11th embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 25 shows a biological information measuring device 260 of the fourteenth embodiment. As shown in FIG. 25, a biological information measuring apparatus 260 of the fourteenth embodiment includes an electrode sheet 261 and a measuring device 14. As shown in FIG. In the electrode sheet 261, only the configurations of two electrode portions 262 are changed, and other configurations are the same as those of the electrode sheet 212 of the eleventh embodiment.

As shown in FIG. 26, the electrode portion 262 includes a mesh material 263 intersected by conductive wires 263A and an adhesive 264 interposed between the mesh materials 263. As shown in FIG. For example, the mesh material 263 may be formed by weaving the wire 263A, or may be formed by printing or transferring the wire 263A. Further, for example, the adhesive 264 may be filled between the mesh materials 263 using a jig for discharging the adhesive 264, or the adhesive 264 may be kneaded between the mesh materials 263 using a scraper or the like. . Alternatively, printing or transfer may be performed such that the adhesive is disposed between the adhesive layers to be applied later.

The diameter of the wire 263A of the mesh material 263 is preferably 1 μm or more and 2 mm or less, more preferably 5 μm or more and 1 mm or less, and even more preferably 10 μm or more and 500 μm or less.

The thickness of the electrode portion 262 is preferably 3 μm or more and 30 μm or less, more preferably 5 μm or more and 25 μm or less, and even more preferably 10 μm or more and 20 μm or less. The flexibility of the electrode sheet 261 can be ensured by setting the thickness of the electrode portion 262 or the diameter of the wire 263A within the above range.

The electrode part 262 has conductivity because it includes the mesh material 263 in which the wires 263A having conductivity intersect. In addition, the electrode part 262 has adhesiveness because the adhesive 264 enters between the mesh materials 263 . The configuration of the electrode sheet 261 other than the electrode portion 262 is the same as that of the electrode sheet 212 of the eleventh embodiment.

In addition, when the electrode part 262 is configured with a plurality of wires 263A, it is not always necessary to cross the wires 263A to form a mesh. For example, a structure in which a plurality of wire rods are arranged substantially in parallel and the wire rods are connected to each other at the ends arranged in parallel may be employed.

As shown in FIG. 25, in the biological information measuring device 260, the adhesive layer 232 of the electrode sheet 261 is attached to the skin 16, and the two electrode portions 262 of the electrode sheet 261 are attached to the skin 16 (see arrow C3). As a result, the first surfaces 262A of the two electrode portions 262 come into contact with the skin 16, respectively. The connection terminals 23 of the measuring device 14 are in contact with the second surfaces 262B of the two electrode portions 262 .

In the electrode sheet 261 and the biological information measuring device 260 described above, the following effects are obtained in addition to the effects of the configuration similar to that of the eleventh embodiment. In the electrode sheet 261 and the biological information measuring device 260 described above, the electrode portion 262 has adhesiveness. In the eleventh embodiment, as shown in FIG. 21, the electrode portion 233 does not have adhesiveness. Therefore, by giving the electrode part 262 adhesiveness as in the fourteenth embodiment, the electrode part 262 is easily stuck to the skin 16, and the two electrode parts 262 are prevented from rising from the skin 16.

In the electrode sheet 261 and the biological information measuring device 260 described above, the electrode portion 262 includes a mesh material 263 intersected by conductive wires 263A and an adhesive 264 interposed between the mesh materials 263. As a result, the adhesive 264 between the mesh members 263 can easily stick to the skin 16, and the lifting of the electrode part 262 from the skin can be suppressed more reliably. In addition, since the adhesive 264 enters between the mesh materials 263, the electrode portions 262 of the electrode sheet 261 can be easily manufactured.

[15th Embodiment]
Next, the biological information measuring device of the fifteenth embodiment will be described. The basic configuration of the biological information measuring device of the fifteenth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the fifteenth embodiment, when the same constituent elements, members, etc. as those of the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 27 shows a biological information measuring device 300 of the fifteenth embodiment. In the biological information measuring device 300 of the fifteenth embodiment, only the configuration of the electrode section 303 of the electrode sheet 302 is changed, and other configurations are the same as those of the biological information measuring device 10 of the first embodiment. As shown in FIG. 27, the electrode portion 303 is adhesive and has the same configuration as the electrode portion 262 of the fourteenth embodiment.

In the biological information measurement device 300 described above, when the adhesive layer 33 of the electrode sheet 302 is attached to the skin 16 (see arrow A4), the electrode section 303 is also attached to the skin 16 (see arrow B4). This more reliably prevents the electrode portion 303 from rising from the skin 16 .

Although illustration is omitted, in the biological information measuring devices of the second to tenth embodiments and the twelfth to thirteenth embodiments, the electrode section 32 and the electrode section 73 are replaced with the constituent material of the electrode section 303 of the fifteenth embodiment. By replacing with , the electrode portion may be configured to have adhesiveness. As a result, in the biological information measuring device, the electrode section sticks to the skin 16, thereby more reliably suppressing the electrode section from rising from the skin 16, as in the fifteenth embodiment.

[16th Embodiment]
Next, the biological information measuring device of the 16th embodiment will be described. The basic configuration of the biological information measuring device of the sixteenth embodiment is the same as that of the biological information measuring device 210 of the eleventh embodiment. In the 16th embodiment, when the same constituent elements, members, etc. as in the 11th embodiment are provided, the same reference numerals are given, detailed description thereof is omitted, and differences will be mainly described.

FIG. 28A shows an exploded perspective view of the electrode portion 272 of the sixteenth embodiment, and FIG. 28B shows a cross-sectional view of part of the electrode portion 272 of the sixteenth embodiment. As shown in FIGS. 28A and 28B, the electrode portion 272 includes a mesh material 273 intertwined with insulating wires 273A containing an adhesive, and a conductive portion 274 coated with a conductive material on one side of the mesh material 273. It has The mesh material 273 is formed, for example, by intertwining and bonding a plurality of wires 273A or by hardening them with an adhesive or the like. Also, the conductive portion 274 is formed by applying a conductive material to one side of the mesh material 273 with a scraper or the like, for example.

Since the electrode part 272 has a mesh material 273 intertwined with insulating wires 273A containing an adhesive, the electrode part 272 has adhesiveness.

Although not shown, the mesh material 273 has a number of openings, so the conductive material forming the conductive part 274 passes through the mesh material 273 and flows through the mesh material 273 on one side and the opposite side. are also exposed, and conductive portions 274 are also formed on one side and the opposite side of the mesh material 273 . Therefore, it becomes possible to ensure electrical continuity between the conductive portion 274 and the skin 16 . Also, regardless of which side of the mesh material 273 the conductive part 274 is provided on, at least a part of the conductive part 274 is exposed on both sides of the mesh material 273 through the openings of the mesh material 273 . Therefore, the conductive portion 274 of the electrode portion 272 may be provided on either side of the mesh material 273 . The configuration other than the electrode portion 272 is the same as that of the electrode sheet 212 of the eleventh embodiment.

In the electrode sheet 212 and the biological information measuring device 210 described above, the following effects are obtained in addition to the effects of the configuration similar to that of the eleventh embodiment. In the electrode sheet 212 and the biological information measuring device 210 described above, since the electrode part 272 has adhesiveness, the electrode part 272 easily sticks to the skin 16, and the lifting of the two electrode parts 272 from the skin 16 is suppressed. be done.

In the electrode sheet 212 and the biological information measuring device 210 described above, the electrode portion 272 includes a mesh material 273 in which insulating wires 273A containing an adhesive are intertwined, and a conductive portion 274 on one side of the mesh material 273. Since it is provided, the mesh material 273 of the electrode part 272 is likely to stick to the skin 16 , and the lifting of the electrode part 272 from the skin 16 is more reliably suppressed. Moreover, since the conductive portion 274 coated with a conductive material is provided on one side of the mesh material 273, the electrode portion 272 can be easily manufactured.

Although illustration is omitted, in the biological information measuring devices of the first to tenth embodiments and the twelfth to thirteenth embodiments, the electrode section 32 and the electrode section 73 are replaced with the constituent material of the electrode section 272 of the sixteenth embodiment. By replacing with , the electrode portion may be configured to have adhesiveness. As a result, in the biological information measuring device, the electrode section sticks to the skin 16, thereby more reliably suppressing the electrode section from rising from the skin 16, as in the fifteenth embodiment.

[17th Embodiment]
Next, the biological information measuring device of the seventeenth embodiment will be described. The basic configuration of the biological information measuring device of the seventeenth embodiment is similar to that of the biological information measuring device 210 of the eleventh embodiment. In the 17th embodiment, when the same constituent elements, members, etc. as in the 11th embodiment are provided, the same reference numerals are given, detailed description thereof is omitted, and differences are mainly described.

FIG. 29A shows a plan view of part of the electrode portion 282 of the seventeenth embodiment, and FIG. 29B shows a cross-sectional view of part of the electrode portion 282 of the seventeenth embodiment. As shown in FIGS. 29A and 29B, the electrode portion 282 has an adhesive 284 kneaded inside a conductive portion 283 made of a conductive material. The electrode portion 282 is formed, for example, by melting a conductive material that forms the conductive portion 283, kneading the melt with the adhesive 284 dispersed therein, and solidifying the conductive material.

The adhesive 284 is exposed on both surface sides of the electrode portion 282 . Therefore, the electrode part 282 has adhesiveness. The configuration other than the electrode portion 282 is the same as that of the electrode sheet 212 of the eleventh embodiment.

In the electrode sheet 212 and the biological information measuring device 210 described above, the following effects are obtained in addition to the effects of the configuration similar to that of the eleventh embodiment. In the electrode sheet 212 and the biological information measuring device 210 described above, since the electrode part 282 has adhesiveness, the electrode part 282 easily sticks to the skin 16, and the lifting of the two electrode parts 282 from the skin 16 is suppressed. be done.

In the electrode sheet 212 and the biological information measuring device 210 described above, the electrode portion 282 has the adhesive 284 kneaded into the conductive portion 283 made of a conductive material. It is easy to stick to the skin 16, and the lifting of the electrode part 282 from the skin 16 is suppressed more reliably. In addition, since the electrode portion 282 has the adhesive 284 kneaded into the conductive portion 283 made of a conductive material, good conductivity and adhesiveness can be ensured over the entire surface of the electrode portion 282 .

Although illustration is omitted, in the biological information measuring devices of the first to tenth embodiments and the twelfth to thirteenth embodiments, the electrode section 32 and the electrode section 73 are replaced with the constituent material of the electrode section 282 of the seventeenth embodiment. By replacing with , the electrode portion may be configured to have adhesiveness. As a result, in the biological information measuring device, the electrode section sticks to the skin 16 and is suppressed from rising from the skin 16 in the same manner as in the seventeenth embodiment.

[18th embodiment]
Next, the biological information measuring device of the eighteenth embodiment will be described. The basic configuration of the biological information measuring device of the eighteenth embodiment is the same as that of the biological information measuring device 10 of the first embodiment. In the eighteenth embodiment, when the same constituent elements, members, etc. as those of the first embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 30 shows a biological information measuring device 320 of the eighteenth embodiment. As shown in FIG. 30 , a biological information measuring device 320 of the eighteenth embodiment includes an electrode sheet 12 , a measuring device 14 , and a hook-and-loop fastener 322 for attaching the measuring device 14 to the electrode sheet 12 . The hook-and-loop fastener 322 is an example of an attachment/detachment mechanism.

The hook-and-loop fastener 322 includes a hook-shaped portion 322A in which a plurality of hook portions are implanted, and a loop-shaped portion 322B in which a plurality of loop portions for locking the hook portions are implanted. The hook-shaped portion 322A is attached, for example, to the edge of the back surface 21D of the housing 21 of the measuring device 14 by adhesion or the like. The loop-shaped portion 322B is attached, for example, to the second surface 131B of the cover layer 31 of the electrode sheet 12 on the side opposite to the electrode portion 32 by adhesion or the like. In the eighteenth embodiment, the loop-shaped portions 322B are provided at both ends of the sheet portion 31A in the longitudinal direction.

By pressing the hook-shaped portion 322A and the loop-shaped portion 322B of the hook-and-loop fastener 322, the hook portion of the hook-shaped portion 322A is engaged with the loop portion of the loop-shaped portion 322B. is attached. Hook-and-loop portion 322A and loop-shaped portion 322B of hook-and-loop fastener 322 can be attached and detached. The hook-shaped portion 322A is attached to the measuring device 14 so that the connection terminal 23 of the measuring device 14 contacts the electrode portion 32 of the electrode sheet 12 while the hook-shaped portion 322A and the loop-shaped portion 322B are attached. The position and attachment position of the loop-shaped portion 322B to the electrode sheet 12 are set. That is, the hook-and-loop fastener 322 allows the electrode portion 32 of the electrode sheet 12 and the connection terminal 23 of the measuring device 14 to be brought into contact with each other in a detachable manner.

In the biological information measuring apparatus 320, the hook-shaped portion 322A of the measuring device 14 and the loop-shaped portion 322B of the electrode sheet 12 are pressed against each other, whereby the hook-shaped portion 322A and the loop-shaped portion 322B are attached, and the measuring device 14 is attached to the electrode. Attached to seat 12 . With the measuring device 14 attached to the electrode sheet 12 , the connection terminal 23 of the measuring device 14 contacts the electrode portion 32 of the electrode sheet 12 .

In the biological information measuring device 320 described above, in addition to the effects of the same configuration as in the first embodiment, the following effects can be obtained. In the biological information measuring apparatus 320 , the electrode sheet 12 and the measuring device 14 are provided with hook-and-loop fasteners 322 that allow the electrode portions 32 and the connection terminals 23 to come into contact with each other in a detachable manner. Therefore, the hook-and-loop fastener 322 allows the measuring device 14 to be attached and detached to and from the electrode sheet 12 many times, and the operability of the biological information measuring apparatus 320 is improved. Also, one of the measuring device 14 and the electrode sheet 12 can be replaced due to damage or the like. In this example, the hook-and-loop fastener 322 is provided on the cover layer 31, but if a conductive hook-and-loop fastener is used as the hook-and-loop fastener 322, the second surface 32B of the electrode portion 32 can be exposed through the first opening 31B. It is also possible to provide a hook-and-loop fastener on the part to be attached. In this case, the connection terminal 23 and the electrode portion 32 may be electrically connected via a conductive hook-and-loop fastener.

[Nineteenth Embodiment]
Next, the biological information measuring device of the nineteenth embodiment will be described. The basic configuration of the biological information measuring device of the nineteenth embodiment is similar to that of the biological information measuring device 240 of the twelfth embodiment. In the nineteenth embodiment, when the same constituent elements, members, etc. as those of the twelfth embodiment are provided, the same reference numerals are given, detailed description thereof will be omitted, and differences will be mainly described.

FIG. 31 shows a biological information measuring device 330 of the nineteenth embodiment. As shown in FIG. 31 , a biological information measuring device 330 of the nineteenth embodiment includes an electrode sheet 212 , a measuring device 52 , and hook-and-loop fasteners 322 for attaching the measuring device 52 to the electrode sheet 212 .

The hook-shaped portion 322A of the hook-and-loop fastener 322 is attached, for example, to the edge of the back surface 21D of the housing 21 of the measuring device 52 by adhesion or the like. The loop-shaped portion 322B of the hook-and-loop fastener 322 is attached, for example, to the second surface 131B of the cover layer 231 of the electrode sheet 212 opposite to the adhesive layer 232 by adhesion or the like. In the nineteenth embodiment, the loop-shaped portion 322B is provided at the edge of the first opening 231B in the seat portion 231A.

The hook-shaped portion 322A is attached to the measuring device 52 so that the connection terminal 23 of the measuring device 52 contacts the electrode portion 233 of the electrode sheet 212 while the hook-shaped portion 322A and the loop-shaped portion 322B are attached. The position and attachment position of the loop-shaped portion 322B to the electrode sheet 212 are set.

In the biological information measuring device 330 described above, the following effects are obtained in addition to the effects of the configuration similar to that of the twelfth embodiment. In the biological information measuring apparatus 330, the electrode sheet 212 and the measuring device 52 are provided with hook-and-loop fasteners 322 that allow the electrode portions 233 and the connection terminals 23 to be detachably brought into contact with each other. Therefore, the hook-and-loop fastener 322 allows the measuring device 52 to be attached and detached to and from the electrode sheet 212 many times, and the operability of the biological information measuring apparatus 330 is improved. Also, one of the measuring device 52 and the electrode sheet 212 can be replaced due to damage or the like. As in the eighteenth embodiment, it is also possible to use a conductive surface fastener as the surface fastener 322 in the nineteenth embodiment.

〔others〕
In addition, in the biological information measuring devices of the first to nineteenth embodiments, an electrode sheet having one of two electrode units is used, but the present disclosure is not limited to two electrode units. An electrode sheet having a plurality of electrode parts of one or more may be used. As three or more electrode sections, for example, a positive electrode section, a negative electrode section, a reference electrode section, and the like can be provided. Also, a plurality of positive electrode portions and a plurality of negative electrode portions may be provided.

In addition, in the biological information measuring devices of the first to nineteenth embodiments, the cover layer is colored like skin color, but a color other than skin color may be used. The cover layer can be of other colors, for example transparent, white, or translucent white.

Further, in the biological information measuring devices of the first to nineteenth embodiments, the cover layer may be transparent, and at least one of the electrodes may be made of a transparent material. As the transparent material, for example, a transparent conductive polymer material or the like can be used.

Also, in the biological information measuring devices of the eighteenth and nineteenth embodiments, the attachment positions of the hook-shaped portion 322A and the loop-shaped portion 322B may be reversed. That is, the hook-shaped portion 322A may be attached to the electrode sheet and the loop-shaped portion 322B may be attached to the measuring device. Also, the configuration of the hook-and-loop fastener 322 can be changed, and one with both hooks and loops implanted may be used. Instead of the hook and loop fastener, a click type fastener having a strong binding force may be used, or a serrated shark bite type fastener may be used.

In addition, in the biological information measuring apparatus of the eighteenth and nineteenth embodiments, instead of the hook-and-loop fastener, an adhesive layer is provided on one of the electrode sheet and the measuring device as the attachment/detachment mechanism, and the electrode sheet and the measuring device are attached and detached by the adhesive layer. It may be possible to combine them. Also, the attachment/detachment mechanism may use a detachable member such as an adhesive tape or a magnet instead of the hook-and-loop fastener.

Further, attachment/detachment mechanisms such as hook-and-loop fasteners provided in the biological information measuring devices of the 18th and 19th embodiments are provided in the biological information measuring devices of the 2nd to 11th embodiments and the 12th to 17th embodiments. good too.

Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments, and can be implemented in various ways without departing from the scope of the present disclosure, such as by appropriately combining the above embodiments. It goes without saying that it is possible.

The disclosure of Japanese Patent Application 2020-024401 is incorporated herein by reference in its entirety.
All publications, patent applications and technical standards mentioned herein are to the same extent as if each individual publication, patent application and technical standard were specifically and individually noted to be incorporated by reference. incorporated herein by reference.

Claims (20)

a sheet base material having a first opening and having insulating properties;
an adhesive layer having a second opening and having the same outer size as the sheet base material, the adhesive layer being non-gelled and having insulating properties;
A plurality of electrode parts provided separately from each other within the outer edge of the sheet base material and the adhesive layer, wherein the skin of the measurement object is in direct contact with a first surface opposite to the sheet base material, and an electrode portion that is in contact with an electrical contact of a measuring device through at least the first opening on the second surface of the sheet substrate side,
At both ends of the adhesive layer, a gap is provided between the outer edge of the adhesive layer and the outer edge of the electrode portion ,
The sheet base material, the electrode portion, and the adhesive layer are laminated in this order,
The electrode sheet, wherein the first surface of the electrode portion faces the second opening of the adhesive layer, and a region of the first surface exposed through the second opening contacts the skin. a sheet base material having a first opening and having insulating properties;
an adhesive layer having a second opening and having the same outer size as the sheet base material, the adhesive layer being non-gelled and having insulating properties;
A plurality of electrode parts provided separately from each other within the outer edge of the sheet base material and the adhesive layer, wherein the skin of the measurement object is in direct contact with a first surface opposite to the sheet base material, and an electrode portion that is in contact with an electrical contact of a measuring device through at least the first opening on the second surface of the sheet substrate side,
At both ends of the adhesive layer, a gap is provided between the outer edge of the adhesive layer and the outer edge of the electrode portion ,
The sheet base material, the adhesive layer, and the electrode portion are laminated in this order,
The second surface of the electrode part faces the second opening of the adhesive layer, and the area exposed through the first opening of the sheet base material and the second opening of the adhesive layer on the second surface is An electroded sheet in contact with the electrical contacts . 3. The electrode sheet according to claim 2 , further comprising an insulating layer disposed on the first surface side of each of the plurality of electrode portions and providing insulation between the plurality of electrode portions. 4. The electrode sheet according to any one of claims 1 to 3 , wherein the adhesive layer comprises an acrylic adhesive. 5. The electrode sheet according to any one of claims 1 to 4 , wherein the sheet base material is made of a stretchable material. 6. The electrode sheet according to claim 5 , wherein the sheet base material is made of a material having a tensile elastic modulus of 10 Mpa or more and 2000 Mpa or less. 2. From claim 1, wherein the maximum distance between the portions of the plurality of electrode portions that can be contacted by the electrical contacts of the measuring device is equal to or less than the minimum distance between the portions of the plurality of electrode portions that can be contacted by the skin. Electrode sheet according to any one of claims 6 to 6 . The electrode part is at least one metal material selected from silver, silver chloride, gold, copper, iron, aluminum, magnesium, nickel, chromium, titanium, platinum, tin, zinc, and alloys composed thereof, or conductive 8. The electrode sheet according to any one of claims 1 to 7 , wherein the electrode sheet is made of a polymeric material having properties. The electrode sheet according to any one of claims 1 to 8 , wherein the electrode portion has adhesiveness. 10. The electrode sheet according to claim 9 , wherein the electrode portion includes a mesh material in which conductive wires are formed in a mesh shape, and an adhesive interposed between the mesh materials. 10. The electrode according to claim 9 , wherein the electrode section includes a mesh material in which insulating wires containing an adhesive are intertwined, and a conductive material coated on one side of the mesh material. sheet. 10. The electrode sheet according to claim 9 , wherein the electrode portion is made of a conductive material in which an adhesive is kneaded. 13. The electrode sheet according to any one of claims 1 to 12 , wherein the sheet base material is colored in skin color. The sheet base material is transparent,
13. The electrode sheet according to any one of claims 1 to 12 , wherein the electrode portion is made of a transparent material. The electrode sheet according to any one of claims 1 to 14 , wherein the sheet base material has moisture permeability. an electrode sheet according to any one of claims 1 to 15 ;
a measuring device having an electrical contact that contacts the second surface of the electrode portion at least through the first opening of the sheet base material, and attached to the electrode sheet while the electrical contact is in contact;
A biological information measurement device comprising an electrode sheet according to claim 2;
The electrode sheet has an electrical contact that contacts the second surface of the electrode portion through the first opening of the sheet base material and the second opening of the adhesive layer, and the electrode sheet is in contact with the electrical contact. a measuring device attached to the
A biological information measurement device comprising 18. The biological information measuring apparatus according to claim 16, wherein the electrode sheet and the measuring device are provided with a detachable mechanism for detachably contacting the electrode section and the electrical contact. A step of forming a plurality of electrode portions separated from each other on a surface of a sheet substrate having a release film attached thereto, the sheet substrate having a first opening and having insulating properties, a step of forming a plurality of electrode portions at positions separated from each other within the outer edge of the sheet base material and at positions partially facing the first opening;
A step of forming on the surface of the sheet substrate an adhesive layer having a second opening, having the same outer size as that of the sheet substrate, and having a non-gel-like and insulating property, wherein the adhesive layer A step of forming an adhesive layer in a manner in which a space is provided between the outer edge of the adhesive layer and the outer edge of the electrode portion at both ends of the and the plurality of electrode portions are sandwiched between the sheet base material and,
a step of peeling the release film from the sheet substrate;
with
A method for manufacturing an electrode sheet, wherein a region exposed through the second opening on the first surface of the electrode part opposite to the sheet base material contacts the skin of the measurement target. A sheet substrate having a release film adhered thereon, having the same outer size as the sheet substrate and having a non-gel state on the surface of the sheet substrate having a first opening and having insulating properties. and a step of forming an adhesive layer having insulating properties, the step of forming an adhesive layer having a second opening communicating with the first opening;
A step of forming a plurality of electrode portions at positions separated from each other and partially facing the first opening and the second opening within the outer edges of the sheet base material and the adhesive layer, wherein the adhesive a step of forming a plurality of electrode portions in such a manner that a gap is provided between the outer edge of the adhesive layer and the outer edge of the electrode portion at both ends of the layer;
a step of peeling the release film from the sheet substrate;
A method of manufacturing an electrode sheet comprising:

Images