Strap with electrode and biological body connection device

Abstract

The strap with an electrode has a first strap portion and a second strap portion extending along the long dimension direction. The second strap portion has a first telescopic portion, an electrode, a second telescopic portion, a loop member, a folded-back portion, and a joining portion. The first telescopic portion has a first stretchability along the long dimension direction. The electrode is provided on the first surface of the first telescopic portion. The second telescopic portion overlaps the first telescopic portion on the second surface side of the first telescopic portion and has a second stretchability that stretches more greatly than the first telescopic portion along the long dimension direction. The loop member is provided at the position of the second strap portion along the long dimension direction that becomes the strap end and can be connected to the first strap portion. The folded-back portion is provided between the first telescopic portion and the second telescopic portion and is folded back at the loop member in such a way that the first telescopic portion and the second telescopic portion overlap. The joining portion joins the second surface of the first telescopic portion and the second telescopic portion.

Description

Technical Field

[0001] One aspect of the present invention relates to a strap with electrodes and a biological attachment device. Background Art

[0002] For example, the heartbeat measurement device of Patent Document 1 detects an electrocardiogram signal in a state of being wound around the chest by a strap. When the heartbeat measurement device is made into a ring shape, a stretchable hanging strap and a non-stretchable strap provided with electrodes are connected in the circumferential direction of the strap using a metal member. In the detection of the electrocardiogram signal at the chest, by arranging the electrodes across the heart, a large potential difference can be obtained, so the electrode interval in the non-stretchable strap can be short. Therefore, the heartbeat measurement device can have a longer stretchable part and can easily adjust the length of the hanging strap.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Patent No. 5441977 Gazette Summary of the Invention

[0006] Problems to be Solved by the Invention

[0007] Biological attachment devices such as heartbeat measurement devices sometimes use straps to be attached to the limbs (upper limbs or lower limbs). At this time, when the number of electrodes arranged on the strap is increased or the area of each electrode is increased in order to detect a more minute potential difference, it may be difficult to embed a stretchable part in the circumferential direction of the strap. In this case, after attaching the biological attachment device to the user with the strap, the length of the strap does not follow the increase in the diameter (circumference) of the part where the biological attachment device is attached, so it may cause discomfort to the user.

[0008] An object of the present invention is to provide a strap with electrodes and a biological attachment device that can suppress discomfort to the user when used in a state of being attached to an appropriate position.

[0009] Technical Solution

[0010] In order to solve the above problems, the present invention can adopt the following configuration.

[0011] An electrode-equipped strap of a scheme includes: a first strap portion, which is strip-shaped and extends along the long dimension direction; and a second strap portion, which is provided with respect to the first strap portion in a first direction along the long dimension direction and extends along the long dimension direction. The second strap portion has: a first stretchable portion having electrical insulation, an electrode having conductivity, a second stretchable portion, an annular ring member, a folded-back portion, and a joining portion. The first stretchable portion is strip-shaped having a first surface and a second surface opposite to the first surface, and has a first stretchability along the long dimension direction. The electrode is provided on the first surface of the first stretchable portion. The second stretchable portion overlaps the first stretchable portion on the second surface side of the first stretchable portion, is strip-shaped, and has a second stretchability that stretches more greatly per unit length along the long dimension direction than the first stretchability of the first stretchable portion. The ring member is provided at a position along the long dimension direction of the second strap portion that becomes the strap end and can be connected to the first strap portion. The folded-back portion is provided between the first stretchable portion and the second stretchable portion and is folded back at the ring member in such a manner that the first stretchable portion and the second stretchable portion overlap. The joining portion joins the second surface of the first stretchable portion and the second stretchable portion.

[0012] The long dimension direction is the direction along the extending direction (circumferential direction) of the strap. For the electrode-equipped strap, for example, in one second strap portion, the second stretchable portion having a greater stretchability than the first stretchable portion is overlapped on the second surface of the first stretchable portion provided with the electrode on the first surface. The first stretchable portion and the second stretchable portion are continuous at the folded-back portion between the first stretchable portion and the second stretchable portion. In a state where such a strap is assembled to a living body, the second stretchable portion in the second strap portion stretches in the long dimension direction (circumferential direction) according to the movement of the living body at the position where the strap is assembled. By the stretching of the second stretchable portion, the relative position of the folded-back portion and the ring member changes, and the length of the strap is adjusted. Therefore, in this electrode-equipped strap, according to the user's movement, the stretchability is adjusted in one second strap portion, thereby being able to suppress discomfort to the user in a state of being assembled to an appropriate position. The position where the strap is assembled is preferably a limb (upper limb or lower limb), but can also be the chest, abdomen, waist, etc.

[0013] Since the electrode is provided on the first surface of the first stretchable portion that is less stretchable than the second stretchable portion, for the user wearing the strap, it is possible to perform signal detection using the electrode or treatment using the electrode while maintaining the positional relationship between the living body and the electrode in a fixed state. Signal detection using the electrode refers to obtaining signals from the living body such as a heartbeat and an electrical signal that becomes an electrocardiogram when propagated in the atrium and ventricle and written as a waveform. This is the "examination" using the electrode. "Treatment" using the electrode is to make a weak current of 1200 Hz or less flow to the skin surface, and eliminate the soreness of the muscles at the affected area through this stimulation.

[0014] In one embodiment, preferably, the first telescopic portion has: a base portion having a third telescopic property that telescopically expands and contracts more greatly than the first telescopic property in the longitudinal dimension direction, forming a first surface; and a telescopic property adjusting member fixed to the base portion and having a fourth telescopic property that is less likely to telescopically expand and contract than the third telescopic property in the longitudinal dimension direction, adjusting the telescopic property of the first telescopic portion in the longitudinal dimension direction to a state having the first telescopic property and forming a second surface.

[0015] According to such a configuration, the telescopic property of the first telescopic portion of the second strap portion in the longitudinal dimension direction can be adjusted to a state having the first telescopic property by the base portion and the telescopic property adjusting member.

[0016] In one embodiment, preferably, the first telescopic portion has low telescopic property or non-telescopic property in the longitudinal dimension direction.

[0017] In a state where the first telescopic portion is not easily telescopic and the electrode is disposed on the first telescopic portion, the positional relationship between the living body and the electrode can be more reliably maintained in a fixed state.

[0018] In one embodiment, preferably, the folded-back portion has the first telescopic property in the longitudinal dimension direction.

[0019] The folded-back portion and the first telescopic portion can be integrally formed into the same configuration.

[0020] In one embodiment, preferably, the folded-back portion has the second telescopic property in the longitudinal dimension direction.

[0021] The folded-back portion and the second telescopic portion can be integrally formed into the same configuration.

[0022] In one embodiment, preferably, the first strap portion has: a connecting portion that folds back at the ring member toward the outer position of the first strap portion, adjusts the length of the first strap portion, and can be detachably attached to the outside of the first strap portion.

[0023] By the first strap portion, initial adjustment of the circumference of the strap can be performed when assembling the strap for attaching the living body mounting device to the living body.

[0024] In one embodiment, preferably, the first telescopic portion of the second strap portion includes: a wiring that electrically connects the electrode to the main body portion of the strap with an electrode.

[0025] Since there is a wiring in the first telescopic portion having a lower telescopic property than the second telescopic portion, a load can be suppressed from being applied in the longitudinal dimension direction of the wiring.

[0026] In one embodiment, preferably, the living body mounting device includes: a strap with an electrode; and a main body portion disposed between the first strap portion and the second strap portion of the strap and having a control substrate electrically connected to the electrode built therein.

[0027] Therefore, a biological attachment device can be provided that can suppress discomfort to the user when assembled in a proper position.

[0028] For example, a main body portion having a sensor or a transducer can be assembled at a proper position of a strap with electrodes and used. Therefore, a main body portion having a desired function can be assembled to the strap with electrodes and used. For example, a main body portion having a function of measuring a heartbeat can be assembled to a strap to measure the heartbeat. Instead of the main body portion having a function of measuring a heartbeat, a main body portion for detecting an electrocardiogram signal can be assembled to a strap to detect the electrocardiogram signal. A main body portion having a function of performing low-frequency treatment can be assembled to a strap to perform low-frequency treatment. In this way, various main body portions can be assembled to a strap and used.

[0029] Advantages of the Invention

[0030] According to the present invention, a strap with electrodes and a biological attachment device can be provided that can suppress discomfort to the user when assembled in a proper position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic perspective view showing a biological attachment device according to a first embodiment.

[0032] Figure 2 is showing from a direction Figure 1 different from that of the biological attachment device when viewed.

[0033] Figure 3 is a schematic block diagram showing a biological attachment device according to a first embodiment.

[0034] Figure 4 is a schematic top view showing a biological attachment device according to a first embodiment.

[0035] Figure 5 is when viewed from the direction indicated by arrow V Figure 4 of the biological attachment device in.

[0036] Figure 6 is when viewed from the direction indicated by arrow VI Figure 5 of the biological attachment device in.

[0037] Figure 7 is Figure 5 an enlarged view of the position indicated by reference numeral VII in.

[0038] Figure 8 is a schematic view showing a biological attachment device according to a first embodiment.

[0039] Figure 9It is a schematic diagram showing a state in which the main body portion of the biological attachment device according to the first embodiment is assembled to face the front of the user when the user is in the anatomical frontal position.

[0040] Figure 10 It is a schematic top view of the biological attachment device according to the second embodiment.

[0041] Figure 11 It is viewed from the direction shown by arrow XI Figure 10 The schematic diagram of the biological attachment device in

[0042] Figure 12 It is viewed from the direction shown by arrow XII Figure 11 The schematic diagram of the biological attachment device in

[0043] Figure 13 It is a schematic diagram of the biological attachment device according to the second embodiment.

[0044] Figure 14 It is a schematic diagram of the biological attachment device according to the third embodiment.

[0045] Figure 15 It is a schematic diagram of the electrode - equipped strap for the biological attachment device according to the fourth embodiment. Specific embodiments

[0046] Embodiments of the electrode - equipped strap 12 including electrodes 68a and 68b and the biological attachment device 10 will be described using the drawings.

[0047] [Application example]

[0048] The electrode - equipped strap 12 including electrodes 68a and 68b is assembled at appropriate positions on the appropriate limbs (upper or lower limbs), chest, abdomen, waist, etc. of the user's body B. The strap 12 can also be assembled on the user's head. The strap 12 is used together with the main body portion 14. The strap 12 has: a first strap portion 62 that is adjusted in length (initial adjustment) to match the assembly position of the user; and a second strap portion 64 in which a first elastic portion 112 and a second elastic portion 114 with different elasticities are overlapped. According to the movement of the user at the position where the strap 12 is disposed on the user, the folded portion 106 and the loop member 110 between the first elastic portion 112 and the second elastic portion 114 move in the circumferential direction (long - dimension direction) of the strap 12. Therefore, in the second strap portion 64, the strap 12 allows the movement of the user and prevents obstruction. The strap 12 and the biological attachment device 10 having the strap 12 suppress discomfort to the user by allowing the movement of the user at the position where the strap 12 is assembled.

[0049] The biological attachment device 10 is configured to detect signals from a living body such as a heartbeat, an electrocardiogram signal, or an electromyogram. In addition, the biological attachment device 10 may also be configured to perform treatment by applying an electrical signal such as a low frequency to the living body.

[0050] [First Embodiment]

[0051] Use Figures 1 to 9 , the biological attachment device 10 and the electrode - equipped strap 12 used together with the biological attachment device 10 will be described. In this embodiment, the case where the biological attachment device 10 measures a heartbeat and an electrocardiogram signal will be taken as an example for description.

[0052] As Figure 1 and Figure 2 shown, the biological attachment device 10 has an electrode - equipped strap (strap) 12 for the biological attachment device 10 and a main body portion 14 provided on the strap 12.

[0053] In the biological attachment device 10, the strap 12 is fixed to the main body portion 14. The biological attachment device 10 including the strap 12 and the main body portion 14 is wound and assembled to a user's (living body's) limbs (upper limbs or lower limbs), for example, by the strap 12. The strap 12 is formed to have a length that can be assembled to the user's limbs. The biological attachment device 10 is formed to have a size and weight that allows the user to move easily when assembled to the user's limbs by the strap 12. When the biological attachment device 10 is assembled to the chest, waist, or head, the strap 12 is formed to have a length that can be assembled to the user's chest, waist, or head. Here, the case where the biological attachment device 10 is assembled to the user's left upper arm will be taken as an example for description.

[0054] The main body portion 14 has a frame (outer housing) 22, an operation portion 24 provided on the frame 22, a display portion 26 provided on the frame 22, a pair of support portions 28a, 28b provided on the frame 22, a first main body electrode (biological signal detection portion) 30 provided on the frame 22, a second main body electrode (biological signal detection portion) 32 provided on the support portion 28a, and a third main body electrode (biological signal detection portion) 34 provided on the support portion 28b.

[0055] The frame 22 is formed of a material having electrical insulation properties. In the state where the biological attachment device 10 is assembled to the user's left upper arm, the support portions 28a, 28b are located on the biological side (back side) with respect to the frame 22, the operation portion 24 is located at a position where it can be operated by the user's fingers or the like of the hand, and the display portion 26 is located at a position where the user can visually confirm it, that is, on the side opposite to the biological body (front side).

[0056] The support portions 28a and 28b are formed, for example, in a substantially wedge shape. The support portions 28a and 28b protrude toward the back surface of the frame 22 and cooperate with the frame 22 and the strap 12 to form a part of a ring when assembled to the left upper arm of a living body. The support portions 28a and 28b are separated in the longitudinal direction of the strap 12. The longitudinal direction is the direction along the extending direction (circumferential direction) of the strap 12 with respect to the main body portion 14. In the present embodiment, the direction in which a first strap portion (longitudinal strap) 62, which will be described later, extends from the main body portion 14 is defined as a first direction D1, and the direction in which a second strap portion (shortitudinal strap) 64, which will be described later, extends from the main body portion 14 is defined as a second direction D2. The back surface of the frame 22 between the support portions 28a and 28b is planar. The support portions 28a and 28b are inclined with respect to the back surface of the frame 22 so as to easily contact the left upper arm of a living body. The support portion 28a, the back surface of the frame 22, and the support portion 28b as a whole are formed in a substantially arc shape.

[0057] The support portions 28a and 28b are formed of a flexible material such as a rubber material or a resin material that can be elastically deformed.

[0058] A first main body electrode 30 is fixed to the back surface of the frame 22 of the main body portion 14. A second main body electrode 32 is fixed to one support portion 28a. A third main body electrode 34 is fixed to the other support portion 28b. The first to third main body electrodes 30, 32, and 34 are used as sensors or transducers for detecting potential. The first main body electrode 30, the second main body electrode 32, and the third main body electrode 34 are formed, for example, as plate-shaped members made of a conductive metal or conductive elastic bodies and are separated from each other. Here, an example in which the main body portion 14 has three main body electrodes 30, 32, and 34 will be described. The three main body electrodes 30, 32, and 34 can be formed to be electrically connected to each other and regarded as one electrode, or can also be formed as one plate-shaped electrode.

[0059] As Figure 3As shown, the main body 14 includes a control unit 42, an electrocardiogram information generation unit 44, an electrocardiogram generation unit 46, a communication unit 48, and a battery 50. The main body 14 further includes a light emitting unit 52, a light receiving unit 54, and a heartbeat information generation unit 56. The control unit 42, the electrocardiogram information generation unit 44, the electrocardiogram generation unit 46, the communication unit 48, the battery 50, the light emitting unit 52, the light receiving unit 54, and the heartbeat information generation unit 56 are provided on a control substrate 40 built in the frame 22. An operation unit 24 and a display unit 26 are also provided on the control substrate 40. For example, the operation unit 24, the display unit 26, the first main body electrode 30, the second main body electrode 32, the third main body electrode 34, the electrocardiogram information generation unit 44, the electrocardiogram generation unit 46, the communication unit 48, the light emitting unit 52, the light receiving unit 54, and the heartbeat information generation unit 56 are electrically connected to the control unit 42. The control unit 42 is electrically connected to the first to fourth strap electrodes (biological signal detection unit) 66a, 66b, 68a, 68b described later. The control unit 42 can control the operation unit 24, the display unit 26, the first main body electrode 30, the second main body electrode 32, the third main body electrode 34, the electrocardiogram information generation unit 44, the electrocardiogram generation unit 46, the communication unit 48, the light emitting unit 52, the light receiving unit 54, the heartbeat information generation unit 56, and the first to fourth strap electrodes 66a, 66b, 68a, 68b respectively.

[0060] In the control unit 42, according to the power from the battery 50, for example, one or more processors expand a control program stored in a memory such as a read-only memory (ROM) to a random access memory (RAM), and execute appropriate processing for the operation unit 24, the display unit 26, the first main body electrode 30, the second main body electrode 32, the third main body electrode 34, the electrocardiogram information generation unit 44, the electrocardiogram generation unit 46, the communication unit 48, the light emitting unit 52, the light receiving unit 54, the heartbeat information generation unit 56, and the first to fourth strap electrodes 66a, 66b, 68a, 68b. Alternatively, in the control unit 42, for example, one or more processors read a program through a network and execute appropriate processing for the operation unit 24, the display unit 26, the first main body electrode 30, the second main body electrode 32, the third main body electrode 34, the electrocardiogram information generation unit 44, the electrocardiogram generation unit 46, the communication unit 48, the light emitting unit 52, the light receiving unit 54, the heartbeat information generation unit 56, and the first to fourth strap electrodes 66a, 66b, 68a, 68b. The control unit 42 can implement the control of the operation unit 24, the display unit 26, the first main body electrode 30, the second main body electrode 32, the third main body electrode 34, the electrocardiogram information generation unit 44, the electrocardiogram generation unit 46, the communication unit 48, the light emitting unit 52, the light receiving unit 54, the heartbeat information generation unit 56, and the first to fourth strap electrodes 66a, 66b, 68a, 68b through a circuit (for example, an application specific integrated circuit (ASIC)) that implements one or more functions.

[0061] The operation unit 24 has operation buttons for inputting instructions such as turning on / off the power supply of the main body unit 14, starting measurement, and stopping measurement.

[0062] The display unit 26 enables a user to recognize the operation state of the main body unit 14 (operation state of the control unit 42), for example, by the light emission of a light-emitting diode (LED: Light Emitting Diode). The user can grasp the operation state of the main body unit 14 by recognizing the light emission color, light emission pattern, etc. of the display unit 26 controlled by the control unit 42. The operation state includes, for example, the case where the power supply is turned on by operating the operation unit 24, the display that measurement using the main body unit 14 is in progress, the case where an appropriate signal is measured and information is appropriately transmitted to an external device through communication using the communication unit 48, etc.

[0063] The display unit 26 may also be formed as an interface for displaying electrocardiogram information such as waveforms generated by the electrocardiogram generation unit 46 and heartbeat information generated by the heartbeat information generation unit 56. An example of the interface is a liquid crystal display or an organic electroluminescence display.

[0064] It should be noted that it is also preferably formed as a touch panel in which the operation unit 24 and the display unit 26 are integrated. In this case, the operation unit 24 converts an instruction into an electric signal by being operated by the user. The display unit 26 can display electrocardiogram information, heartbeat information, the operation state of the control unit 42, etc.

[0065] The first to fourth strap electrodes 66a, 66b, 68a, 68b are used as sensors or converters for obtaining potential information, for example. The electrocardiogram information generation unit 44 selectively uses a plurality of electrodes from the first to third main body electrodes 30, 32, 34 and the first to fourth strap electrodes 66a, 66b, 68a, 68b to obtain potential difference information and generates electrocardiogram information through signal processing. The electrocardiogram generation unit 46 generates information related to the electrocardiogram based on the electrocardiogram information generated by the electrocardiogram information generation unit 44. The electrocardiogram information generated by the electrocardiogram information generation unit 44 and the information related to the electrocardiogram generated by the electrocardiogram generation unit 46 are transmitted to an external device of the biological attachment device 10 through the communication unit 48 controlled by the control unit 42 and stored in the external device. The external device is a data server, a personal computer (PC), a smart phone, or a tablet terminal. The electrocardiogram information generated by the electrocardiogram information generation unit 44 and the information related to the electrocardiogram generated by the electrocardiogram generation unit 46 are also preferably stored in a storage unit (not shown) inside the main body unit 14.

[0066] The light projecting unit 52 can pass through the frame 22 Figure 1The light of an appropriate wavelength is emitted to the living body in the form of the window portion 22a within the first main body electrode 30 on the back surface shown. The light-receiving portion 54 can receive the reflected light of the light emitted to the living body from the light-projecting portion 52 in a manner passing through the window portion 22a. Based on the information obtained by projecting light to the living body through the light-projecting portion 52, obtaining the reflected light from the living body through the light-receiving portion 54 and performing photoelectric conversion, the heartbeat information generation unit 56 appropriately processes the signal to generate heartbeat information. The heartbeat information generated by the heartbeat information generation unit 56 is transmitted to an external device of the living body attachment device 10 through the communication unit 48 controlled by the control unit 42 and stored in the external device. The heartbeat information generated by the heartbeat information generation unit 56 is also preferably stored in a storage portion (not shown) within the main body portion 14.

[0067] As Figures 4 to 6 shown, in the present embodiment, the straps 12 extend from the main body portion 14 in two directions D1 and D2 opposite to each other. The strap 12 has a first strap portion (first belt portion) 62 and a second strap portion (second belt portion) 64. The first strap portion 62 and the second strap portion 64 are in a belt shape (hanging belt shape or strip shape) and extend along the long dimension direction. Two strap electrodes (first strap electrode and second strap electrode) 66a, 66b are fixed to the first strap portion 62. Alternatively, the second strap electrode 66b fixed to the first strap portion 62 can be detached from the first strap portion 62. Preferably, a plurality of electrodes 66a, 66b are arranged in the first strap portion 62, but it can also be one. Two strap electrodes (third strap electrode and fourth strap electrode) 68a, 68b are fixed to the second strap portion 64. Alternatively, the fourth strap electrode 68b fixed to the second strap portion 64 can be detached from the second strap portion 64. Preferably, a plurality of electrodes 68a, 68b are arranged in the second strap portion 64, but it can also be one.

[0068] It should be noted that for the maintenance of the first strap portion 62, not only the second strap electrode 66b but also the first strap electrode 66a can be detached. Similarly, for the maintenance of the second strap portion 64, not only the fourth strap electrode 68b but also the third strap electrode 68a can be detached.

[0069] The main body portion 14 is fixed to a desired position on, for example, the left upper arm using the strap 12. The lengths of the first strap portion 62 and the second strap portion 64 of the strap 12 can be constant regardless of the assumed user to be assembled, or can vary according to the assumed user. For example, the straps 12 with lengths obtained by respectively assuming adults, children, men, women, etc. can also be lined up.

[0070] In the case where it is assumed to be assembled to the lower limb instead of the upper limb such as the left upper arm, the lengths of the first strap portion 62 and the second strap portion 64 of the strap 12 can be the same as those in the case of being assembled to the upper limb, or can vary according to the assumed assembly position.

[0071] The first strap portion 62 has one end 72, the other end 74, and a telescopic portion (the telescopic portion on the first strap portion side) 76. One end 72 of the first strap portion 62 is supported by the main body portion 14. Preferably, the first strap portion 62 can rotate, for example, at one end 72 so as to follow the living body. The other end 74 of the first strap portion 62 is an open end.

[0072] The telescopic portion 76 of the first strap portion 62 has a first telescopic property of telescoping along the long dimension direction. The telescopic portion 76 of the first strap portion 62 along the long dimension direction is substantially formed as a hardly telescopic portion or a non-telescopic portion that hardly telescopes along the long dimension direction. In the present embodiment, the first telescopic property of the first strap portion 62 means substantially the same as hardly telescopic property or non-telescopic property. The telescopic property in the width direction orthogonal to the long dimension direction of the telescopic portion 76 of the first strap portion 62 is, for example, substantially the same as the first telescopic property.

[0073] The first strap portion 62 has: a base body 82 having a telescopic property higher than the first telescopic property along the long dimension direction; and a telescopic property adjusting member 84 fixed to the base body 82.

[0074] The base body 82 telescopes more per unit length along the long dimension direction than the first telescopic property of the telescopic portion 76. The base body 82 is, for example, made of cloth. The base body 82 can use, for example, stretchable materials such as polyurethane, cotton, and rubber materials.

[0075] In the adjusting member 84, a material having a lower telescopic property along the long dimension direction than the base body 82 is used. The adjusting member 84 is, for example, made of cloth. In the adjusting member 84, substantially, a material having hardly telescopic property or non-telescopic property is used.

[0076] The base body 82 and the adjusting member 84 are formed long along the long dimension direction. The base body 82 defines one end 72 and the other end 74 along the long dimension direction. The length of the adjusting member 84 is slightly shorter than the length of the base body 82. The adjusting member 84 is fixed between one end 72 and the other end 74 of the base body 82. The base body 82 and the adjusting member 84 are fixed by sewing or pasting. The outer edge of the adjusting member 84 is located inside the outer edge of the base body 82. The base body 82 is on the living body side when the living body attachment device 10 is assembled to the living body. The adjusting member 84 is on the side opposite to the living body when assembled to the living body. The base body 82 and the adjusting member 84 have flexibility. The base body 82 and the adjusting member 84 are formed of a material having electrical insulation properties.

[0077] In the first strap portion 62, an adjustment member 84 that is slightly shorter than the entire length of the first strap portion 62 and has lower stretchability than the base 82 is fixed to the base 82. As a result, overall, the stretchability is lower than that of the base 82. The stretchability in the longitudinal dimension of the first strap portion 62 is substantially the same as the stretchability in the longitudinal dimension of the adjustment member 84, and substantially has low stretchability or non-stretchability.

[0078] In the adjustment member 84, for example, a hook-and-loop fastener is used. Regarding the hook-and-loop fastener, preferably, a hook-and-loop fastener in which the hook and the loop are mixed on the same surface is used. The first strap portion 62 is folded back at an appropriate portion where the base 82 and the adjustment member 84 overlap, and is connected by the abutment of the hook-and-loop fasteners of the adjustment member 84, and the length is adjusted. Therefore, the hook-and-loop fastener of the adjustment member 84 of the first strap portion 62 becomes a connecting portion that folds back toward the outer side of the first strap portion 62 at the loop member 110, adjusts the length of the first strap portion 62, and can be detached and attached to the outer side of the first strap portion 62.

[0079] In the present embodiment, a first strap electrode 66a is fixed to the base 82 of the first strap portion 62 at a position close to the second main body electrode 32. A second strap electrode 66b is fixed to the base 82 of the first strap portion 62 at a position farther from the second main body electrode 32 than the first strap electrode 66a. The first strap electrode 66a and the second strap electrode 66b are adjacent in the longitudinal dimension. The first strap electrode 66a and the second strap electrode 66b are formed in a plate shape by a conductive metal plate or a conductive elastic body, and are hardly stretched in the longitudinal dimension. The first strap electrode 66a is electrically connected to the control unit 42 of the control substrate 40 of the main body portion 14 through a wiring 67a disposed in the first strap portion 62. The second strap electrode 66b is electrically connected to the control unit 42 of the control substrate 40 of the main body portion 14 through a wiring 67b disposed in the first strap portion 62.

[0080] As Figures 4 to 7 shown, the second strap portion 64 has: a belt-shaped strap main body 100; and an annular loop member 110 provided at a position along the longitudinal dimension of the second strap portion 64 that is the strap end.

[0081] The strap main body 100 has one end 102, the other end 104, a folded-back portion 106, and a fixing portion (joint portion) 108. The one end 102 and the other end 104 of the strap main body 100 are continuous. The one end 102 of the strap main body 100 is supported by the main body portion 14. Preferably, the second strap portion 64 can rotate at one end 102, for example, so as to follow the living body. The strap end of the second strap portion 64 is located at the position farthest from the one end 102 of the strap main body 100 in the second direction D2 of the long dimension direction. The strap main body 100 is folded back at the loop member 110 at the position of the strap end of the second strap portion 64 through the folded-back portion 106. The folded-back portion 106 is located at the position farthest from the one end 102 of the second strap portion 64 in the second direction D2 of the long dimension direction. The other end 104 of the second strap portion 64 is located between the one end 102 and the folded-back portion 106 in the long dimension direction. The fixing portion 108 is provided at the other end 104 of the second strap portion 64. The fixing portion 108 is located closer to the main body portion 14 than the folded-back portion 106 in the long dimension direction.

[0082] A first telescopic portion (first telescopic region) 112 is formed between the one end 102 and the folded-back portion 106 of the strap main body 100. A second telescopic portion (second telescopic region) 114 is formed between the folded-back portion 106 and the other end 104 of the strap main body 100. The first telescopic portion 112 and the second telescopic portion 114 are strip-shaped (hanging strip-shaped or strip-shaped). The folded-back portion 106 is provided between the first telescopic portion 112 and the second telescopic portion 114. The first telescopic portion 112 exists in the inner layer (inside) of the second strap portion 64, and the second telescopic portion 114 exists in the outer layer (outside) of the first telescopic portion 112.

[0083] The first telescopic portion 112 has a first surface 112a and a second surface 112b opposite to the first surface 112a. The second telescopic portion 114 has a first surface 114a and a second surface 114b opposite to the first surface 114a. The first telescopic portion 112 is continuously formed at a position of the second strap portion 64 close to the one end 102. There are the folded-back portion 106 and the second telescopic portion (second telescopic region) 114 in the path between the distal end (boundary) 113a, which is the farthest from the one end 102 in the long dimension direction in the first telescopic portion 112, and the fixing portion 108. The first telescopic portion 112 and the folded-back portion 106 are continuous through the boundary 113a. The folded-back portion 106 and the second telescopic portion 114 are continuous through the boundary 113b. The boundary 113b of the present embodiment cannot be clearly distinguished.

[0084] The second strap portion 64 is formed in a state where the two telescopic portions 112 and 114 are continuous through the folding portion 106, and the two telescopic portions 112 and 114 overlap. Specifically, the second telescopic portion 114 overlaps with the first telescopic portion 112 on the second surface 112b side of the first telescopic portion 112. Therefore, the second surface 112b of the first telescopic portion 112 faces or contacts the second surface 114b of the second telescopic portion 114. The fixing portion 108 fixes between the second surface 112b of the first telescopic portion 112 and the second surface 114b of the second telescopic portion 114.

[0085] The first telescopic portion 112 is located in the second direction D2 along the long dimension direction with respect to the main body portion 14. Preferably, the first telescopic portion 112 has a first telescopic property along the long dimension direction. As described above, the first telescopic property is a difficult-to-expand or non-expandable property and substantially does not expand or contract. On the first surface 112a of the first telescopic portion 112, a third strap electrode 68a and a fourth strap electrode 68b are provided.

[0086] The third strap electrode 68a and the fourth strap electrode 68b are formed in a plate shape by a conductive metal plate or a conductive elastic body and hardly expand or contract in the long dimension direction and the direction orthogonal to the long dimension direction. The third strap electrode 68a is electrically connected to the control portion 42 of the control substrate 40 of the main body portion 14 through the wiring 69a disposed in the second strap portion 64. The fourth strap electrode 68b is electrically connected to the control portion 42 of the control substrate 40 of the main body portion 14 through the wiring 69b of the first telescopic portion 112 disposed in the second strap portion 64. The wiring 69a and the wiring 69b are provided, for example, between the first surface 112a and the second surface 112b of the first telescopic portion 112. Preferably, the wiring 69a and the wiring 69b do not protrude to the outside of the first telescopic portion 112.

[0087] The folding portion 106 folds back the strap main body 100 in the loop member 110. Therefore, the strap main body 100 is folded back by the folding portion 106, whereby the first telescopic portion 112 and the second telescopic portion 114 overlap. The folding portion 106 is located on the second direction D2 side along the long dimension direction with respect to the first telescopic portion 112. The folding portion 106 has a second telescopic property that expands or contracts more per unit length along the long dimension direction than the first telescopic property of the first telescopic portion 112. The folding portion 106 is located at a position spaced a certain distance from the electrode 68b. There is a boundary 113a between the folding portion 106 and the electrode 68b.

[0088] The expandability or contractibility of the first telescopic portion 112 of the second strap portion 64 in the width direction orthogonal to the long dimension direction and the expandability or contractibility of the second telescopic portion 114 in the width direction orthogonal to the long dimension direction are, for example, substantially the same as the first telescopic property.

[0089] The second strap portion 64 has: a base body (base portion) 122 which becomes the left upper arm side (biological body side) when assembled to the left upper arm of a biological body; and a stretchability adjustment member 124 which is located on the outer side away from the left upper arm. The base body 122 and the adjustment member 124 are formed long in the longitudinal direction. The base body 122 and the adjustment member 124 have flexibility. The base body 122 and the adjustment member 124 are formed of a material having electrical insulation properties. The base body 122 and the adjustment member 124 are fixed by sewing or pasting. The outer edge of the adjustment member 124 is located inside the outer edge of the base body 122. The base body 122 is made of cloth, for example. The base body 122 can use stretchable materials such as polyurethane, cotton, and rubber materials, for example. The base body 122 has a third stretchability that stretches more greatly than the first stretchability in the longitudinal direction. In the adjustment member 124, a material with lower stretchability in the longitudinal direction than the base body 122 is used. The adjustment member 124 is made of cloth, for example. The adjustment member 124 has a fourth stretchability that is less likely to stretch in the longitudinal direction than the third stretchability. The fourth stretchability is, for example, as difficult to stretch or non-stretchable as the first stretchability.

[0090] The adjustment member 124 is located between one end 102 and the position of the folding portion 106 along the longitudinal direction of the base body 122. The adjustment member 124 is not disposed at the position of the folding portion 106.

[0091] The stretchability in the longitudinal direction of the region where the adjustment member 124 having the fourth stretchability is fixed to the base body 122 having the third stretchability is substantially the same as the fourth stretchability in the longitudinal direction of the adjustment member 124. The fourth stretchability is substantially the same as the first stretchability. Therefore, the region where the adjustment member 124 with low stretchability is fixed to the base body 122 in the longitudinal direction is formed as a first stretch portion 112 having the first stretchability. In this way, the base body 122 and the adjustment member 124 are sewn or pasted to each other, whereby the stretchability in the longitudinal direction of the first stretch portion 112 of the second strap portion 64 is adjusted to a state having the first stretchability.

[0092] The stretchability in the longitudinal direction of the region on the base body 122 where the adjustment member 124 is not fixed is substantially the same as the third stretchability in the longitudinal direction of the base body 122. The third stretchability is substantially the same as the second stretchability. Therefore, the region on the base body 122 where the adjustment member 124 is not fixed in the longitudinal direction is formed as a second stretch portion 114 having the second stretchability.

[0093] The folding portion 106 of the second strap portion 64 is formed in the same manner as the second stretch portion 114 (base body 122) having a stretchability higher than the first stretchability in the longitudinal direction. There is no adjustment member 124 in the folding portion 106. Therefore, the folding portion 106 can stretch in the longitudinal direction more than the first stretch portion 112 in the same manner as the second stretch portion 114.

[0094] The fixing part 108 joins the second surface 114b of the second stretching part 114 including, for example, the other end 104 of the second band part 64 to the second surface 112b on the outer side of the first stretching part 112 of the second band part 64. Thus, the fixing part 108 joins between the first stretching part 112 and the second stretching part 114 at a position closer to the main body part 14 than the folding part 106 on the second direction D2 side along the long dimension direction with respect to the main body part 14.

[0095] For example, an annular ring member 110 is supported by the folding part 106. The ring member 110 is used when connecting the first band part 62 and the second band part 64. The ring member 110 is formed, for example, in a rectangular annular shape. Preferably, the ring member 110 is formed of a material having electrical insulation. The ring member 110 can move along the long dimension direction by the second stretchability of the second stretching part 114.

[0096] Taking the case where the biological attachment device 10 is attached to the upper left arm UA of a living body as an example, the operation of the biological attachment device 10 will be described.

[0097] As Figure 1 , Figure 2 and Figure 8 shown, the user passes the other end 74 of the first band part 62 from the inside to the outside through the ring member 110 supported by the folding part 106 of the second band part 64, and forms a ring shape by means of the band 12 and the main body part 14. The user makes the first main body electrode to the third main body electrodes 30, 32, 34, the first band electrode to the fourth band electrodes 66a, 66b, 68a, 68b directly contact the skin of the user's upper left arm UA. In this state, the user determines the positions of the electrodes 30, 32, 34 of the main body part 14, the electrodes 66a, 66b of the first band part 62, and the electrodes 68a, 68b of the second band part with respect to the upper left arm UA.

[0098] As Figure 9 shown, the preferred assembly position of the biological attachment device 10 with respect to the user's upper left arm UA is that when, for example, the user's body B is in the anatomical frontal position, the main body part 14 faces the front (anterior) of the user.

[0099] The minimum and maximum values of the application circumference of the biological body attachment device 10 to the left upper arm UA are pre-determined. The user adjusts the length of the telescopic portion 76 of the first strap portion 62 according to the outer peripheral length of the left upper arm UA, and adjusts the position of the folded-back portion 76a with respect to the loop member 110. That is, the user makes an initial adjustment of the circumference of the strap 12 when attaching the strap 12 to the left upper arm UA by adjusting the positions of the folded-back portion 76a and the end portion 74 of the first strap portion 62. The first strap portion 62 and the loop member 110 fold back the first strap portion 62 at a desired position and fix the stretchable adjustment members (connection portions) 84 of the hook-and-loop fastener to each other. Therefore, the position of the first strap portion 62 with respect to the user's left upper arm UA is fixed. The user fixes the positions of the folded-back portion 76a and the end portion 74 of the first strap portion 62 in a state where the user feels that the fixing state of the strap 12 is not too loose and not too tight when the user is in the anatomical neutral position. In the present embodiment, the initial length of the second strap portion 64 is pre-fixed by the fixing portion 108, so that the biological body attachment device 10 can be maintained in a state of being attached to the user's left upper arm UA.

[0100] The user fixes the first strap portion 62 through the loop member 110, and the biological body attachment device 10 becomes an annular body. As a result, the second main body electrode 32 and the third main body electrode 34 are pressed by the skin (muscle) of the left upper arm UA, and the support portions 28a, 28b are elastically deformed. Therefore, the electrodes 32, 34 are in close contact with the skin of the left upper arm UA. The first main body electrode 30 is located between the second main body electrode 32 and the third main body electrode 34. The second main body electrode 32 and the third main body electrode 34 are pressed by the skin of the left upper arm UA and are in close contact with the skin of the left upper arm UA.

[0101] Similarly, the first strap electrode 66a and the second strap electrode 66b provided on the flexible first strap portion 62 are in close contact with the skin of the left upper arm UA, and the third strap electrode 68a and the fourth strap electrode 68b provided on the flexible second strap portion 64 are in close contact with the skin of the left upper arm UA.

[0102] Figure 8The reference numeral L in the figure is the circumference between the electrode 66b of the first strap portion 62 and the ring member 110. The length L varies depending on the thickness of the user's left upper arm UA or the difference in the installation position. For example, when the outer diameter of the user's left upper arm UA is small and the length L is short, the electrodes 66b and 68b are close to each other in a separated state, and the electrodes 30, 32, 34, 66a, 66b, 68a, 68b are in contact with the surface of the skin in a manner that the user's left upper arm UA is almost covered by the electrodes 30, 32, 34, 66a, 66b, 68a, 68b. At this time, the path from the electrode 66b to the electrode 68b through the ring member 110 is shorter than the path from the electrode 66b to the electrode 68b through the main body 14. As an example, the contact area of ​​the user's left upper arm UA relative to the contact surface of the biological attachment device 10 after adding together the electrodes 30, 32, 34, 66a, 66b, 68a, and 68b can be larger than the contact area of ​​the first strap portion 62 and the second strap portion 64 themselves with the user's left upper arm UA.

[0103] The outer diameter of the attachment position of the left upper arm UA when L=0 becomes the minimum value of the application circumference of the biological attachment device 10 .

[0104] When the user's left upper arm UA has a large outer diameter and a long length L, the electrodes 66b and 68b are separated. In this case, the path from the electrode 66b through the body 14 to the electrode 68b may be shorter than the path from the electrode 66b through the ring member 110 to the electrode 68b.

[0105] The user appropriately operates the operation section 24 while appropriately attaching the biological attachment device 10 to the user's left upper arm UA. When the power of the main body section 14 is turned on, the control section 42 starts communicating with the external device through the communication section 48 .

[0106] The main body unit 14 detects a signal (electrocardiogram signal) corresponding to the potential on the surface of the skin of the upper arm UA through the control unit 42, via the first to third main body electrodes 30, 32, 34 and the first to fourth strap electrodes 66a, 66b, 68a, 68b. The first to third main body electrodes 30, 32, 34 and the first to fourth strap electrodes 66a, 66b, 68a, 68b output signals corresponding to the potential to the electrocardiogram information generation unit 44. The electrocardiogram information generation unit 44 sets one electrode selected from the first to third main body electrodes 30, 32, 34 and the first to fourth strap electrodes 66a, 66b, 68a, 68b as a reference electrode, calculates the potential difference between the detected potential of the reference electrode and the detected potentials of the remaining multiple electrodes, and generates information related to the electrocardiogram signal based on the negative maximum value and the positive maximum value in the calculation results. The electrocardiogram information generation unit 44 obtains information related to the electrocardiogram signal based on the detected potential of the selected electrode. The electrocardiogram information generation unit 44 can obtain information not only from one electrode pair (paired electrodes), but also from multiple electrode pairs. Generally, the larger the distance between the paired electrodes, the larger the potential difference. The distance between the paired electrodes varies according to the thickness (circumference) of the arm. Therefore, each time a combination of paired electrodes with a larger potential difference is selected. The electrocardiogram information generation unit 44 uses the stronger signal among the signals obtained from multiple electrode pairs to generate the electrocardiogram signal. The electrocardiogram generation unit 46 generates an electrocardiogram waveform based on the information obtained by the electrocardiogram information generation unit 44.

[0107] The heart rate information generation unit 56 obtains heart rate information based on the detection state of the light projected from the light projection unit 52 onto the left upper arm UA and the reflected light from the left upper arm UA.

[0108] In this way, the main body unit 14 of the biological attachment device 10 measures the electrocardiogram signal and the heart rate of the user, and obtains respective information. The user can easily recognize the state of their own heart by observing the display interface of a PC, smartphone, tablet terminal, etc. connected by the communication unit 48.

[0109] The measurement of the electrocardiogram signal and the heart rate are sometimes preferably performed for several hours until an appropriate time has elapsed. An example of performing the measurement of the electrocardiogram signal and the heart rate for several hours is, for example, during the activity time or during the sleep process.

[0110] When the user wearing the biological attachment device 10 moves the left arm, such as by bending and stretching the left arm, the size (circumference) of the outer periphery of the left upper arm UA may change according to the movement of the left arm. Generally, when the user stretches the arm, the circumference becomes smaller, and when the arm is bent, the circumference becomes larger compared to the state of stretching the arm.

[0111] In a second strap portion 64, the strap 12 with electrodes has a first telescopic portion 112, a second telescopic portion 114 with a greater telescopic property than the first telescopic portion 112, and a folding portion 106 between the first telescopic portion 112 and the second telescopic portion 114. In the second strap portion 64, a continuous region from the boundary 113a between the first telescopic portion 112 and the folding portion 106 to the fixing portion 108 has a second telescopic property. The second telescopic portion 114 expands and contracts in the long dimension direction (circumferential direction) according to the movement of the left upper arm (living body) UA at the position where the strap 12 is assembled, and the folding portion 106 that is continuous with the second telescopic portion 114 and has the second telescopic property expands and contracts in the long dimension direction. According to the expansion and contraction of the second telescopic portion 114 and the folding portion 106 in the long dimension direction, the relative position between the folding portion 106 and the ring member 110 changes. Therefore, the circumference of the strap 12 is adjusted by the second strap portion 64.

[0112] The boundary 113a between the first telescopic portion 112 with low or non-telescopic property and the folding portion 106 with appropriate telescopic property in the second strap portion 64 is located on the side close to the user's left upper arm UA. And a region with the second telescopic property can be continuously formed between the boundary 113a on the user's left upper arm UA side through the folding portion 106 to the fixing portion 108 near the other end 104 of the second strap portion 64. As described above, the fixing portion 108 is located along the long dimension direction at a position closer to the main body portion 14 than the folding portion 106. Therefore, the length of the second telescopic portion 114 along the long dimension direction can be made longer. Therefore, the second strap portion 64 can obtain a larger telescopic region along the long dimension direction.

[0113] Therefore, in matching with the movement of the left arm, the folding portion 106 and the second telescopic portion 114 expand and contract along the long dimension direction of the strap 12. Thus, due to the expansibility of the folding portion 106 of the second strap portion 64 along the long dimension direction (circumferential direction), the strap 12 can easily follow the movement of the left upper arm UA. Therefore, it is possible to suppress discomfort to the user when the living body mounting device 10 is assembled on the user's left upper arm UA.

[0114] In the first band portion 62, the electrodes 66a and 66b are provided at a portion having a first stretchability. That is, in the first band portion 62, the electrodes 66a and 66b are provided at the first band portion 62 having a difficult stretchability or non-stretchability, which is less stretchable than the second stretch portion 114 of the second band portion 64. In the second band portion 64, the electrodes 68a and 68b are provided at the first stretch portion 112 adjacent to the main body portion 14 and having a first stretchability. That is, in the second band portion 64, the electrodes 68a and 68b are provided at the first stretch portion 112 having a difficult stretchability or non-stretchability, which is less stretchable than the second stretch portion 114 of the second band portion 64. Therefore, for a user equipped with the band 12, the biological attachment device 10 maintains the positional relationship between the left upper arm UA and the electrodes 66a, 66b, 68a, and 68b in a fixed state. When the user is in the anatomical position after appropriately moving the left arm, the main body portion 14 faces the anterior of the user. When the user moves the left arm, the state where the electrodes 30, 32, 34, 66a, 66b, 68a, and 68b are in contact with the left upper arm UA of the user can be maintained. Therefore, the biological attachment device 10 can stably detect an electrocardiogram signal using the electrodes 66a, 66b, 68a, and 68b and detect a heartbeat signal using the light projecting portion 52 and the light receiving portion 54.

[0115] It should be noted that the portion in the first band portion 62 that houses the wirings 67a and 67b connecting the electrodes 66a and 66b to the control portion 42 is formed of a material having a difficult stretchability or non-stretchability. Similarly, the portion in the second band portion 64 that houses the wirings 69a and 69b connecting the electrodes 68a and 68b to the control portion 42 is formed of a material having a difficult stretchability or non-stretchability. Therefore, even if the user appropriately moves the left arm, it is difficult to apply a force that elongates the wirings 67a, 67b, 69a, and 69b to the wirings 67a, 67b, 69a, and 69b.

[0116] For example, after obtaining electrocardiogram information and heartbeat information at a preset time, the control portion 42 automatically ends the detection of information related to the electrocardiogram signal and the heartbeat information. After ending the detection of information related to the electrocardiogram signal and the heartbeat information, the control portion 42 automatically sets the power supply of the main body portion 14 to OFF. After that, the user releases the fixation of the first band portion 62 of the biological attachment device 10 and removes the biological attachment device 10 from the left upper arm UA.

[0117] In the biological attachment device 10, from the start to the end of the detection of information related to the electrocardiogram signal and heartbeat information, the circumference changes in accordance with the movement of the left arm, and at the same time, the biological attachment device 10 is maintained in a non-removable manner. At this time, the states of contact of the respective electrodes 30, 32, 34, 66a, 66b, 68a, and 68b with the skin of the left upper arm UA are maintained. When the user is in the anatomical frontal position after appropriately moving the left upper arm UA, the main body 14 faces the front (anterior) of the user. Therefore, after the biological attachment device 10 is assembled to the user, the biological attachment device 10 can stably detect information related to the electrocardiogram signal and heartbeat information from the start to the end of the examination of the electrocardiogram and heartbeat of the user.

[0118] The biological attachment device 10 is used in this way.

[0119] The biological attachment device 10 can be used not only for relatively long-term measurements in units of several hours such as during sleep or activity, but also for relatively short-term measurements such as within 1 minute or for several minutes. Therefore, the strap 12 can also be used, for example, to maintain the state of assembling the main body 14 to the living body within a relatively short time of several minutes.

[0120] Regarding the biological attachment device 10, an example of being attached to the left upper arm UA of the user has been described. The biological attachment device 10 can also be attached to, for example, the user's wrist or lower limb. The lower limb includes the thigh, calf, and ankle, etc.

[0121] Regarding the biological attachment device 10, the strap 12 can also be used for a biological attachment device 10 that is attached to the limbs and used to obtain biological information such as electromyogram information in addition to information related to the electrocardiogram signal. In the case of detecting a biological signal, for example, a pulse wave sensor can be used instead of the electrode 30 or the light projecting unit 52 and the light receiving unit 54. In this case, the biological attachment device 10 calculates the pulse wave conduction time (PTT) based on the time difference between the R-wave peak time of the information related to the electrocardiogram signal and the rising point of the pulse wave information obtained using the pulse wave sensor, and estimates the blood pressure.

[0122] Regarding the biological attachment device 10, an example of using the electrodes (transducers) 30, 32, 34, 66a, 66b, 68a, and 68b for potential detection has been described, but it is also preferably used as, for example, a patch for a low-frequency treatment device or a patch for a weak current treatment device. Therefore, the biological attachment device 10 of the present embodiment is also preferably assembled to the living body not only for detecting biological signals but also for treating the living body. That is, the strap 12 can be used to maintain the state of assembling the main body 14 having the function of treating the living body to the living body.

[0123] The user can also assemble the biological attachment device 10 to the chest, abdomen, or waist by appropriately adjusting the lengths of the first strap portion 62 and the second strap portion 64 of the strap 12 described above and the second elasticity of the second elastic portion 114.

[0124] The elastic portion 76 of the first strap portion 62 may also have higher elasticity than in the case of having low elasticity or non-elasticity. At this time, the elasticity of the elastic portion 76 of the first strap portion 62 is lower than the second elasticity along the long dimension direction of the second elastic portion 114 of the second strap portion 64. Similarly, the first elasticity of the first elastic portion 112 of the second strap portion 64 is lower than the second elasticity of the second elastic portion 114. Therefore, the first elasticity may not be limited to low elasticity or non-elasticity.

[0125] As described above, according to the present embodiment, a strap 12 with electrodes and a biological attachment device 10 that can suppress discomfort to the user in a state of being assembled at an appropriate position can be provided.

[0126] It should be noted that in the present embodiment, the structure of the second elastic portion 114 of the second strap portion 64 can be applied between the electrode 66b of the first strap portion 62 and the ring member 110.

[0127] [Second Embodiment]

[0128] Use Figures 10 to 13 , the second embodiment will be described. The second embodiment is a modification of the first embodiment. For components that are the same as those described in the first embodiment or have the same functions, the same reference numerals are used as much as possible, and detailed descriptions are omitted.

[0129] As Figures 10 to 13As shown, the fixing portion (joint portion) 108 has a first fixing member (joint portion) 108a and a second fixing member (joint portion) 108b. In the present embodiment, the first fixing member 108a is fixed to the second surface 112b on the outer side of the first telescopic portion 112 between one end 102 of the strap main body 100 of the second strap portion 64 and the folded-back portion 106. The second fixing member 108b is fixed to the second surface 114b of the second telescopic portion 114 at the other end 104 of the second strap portion 64. The first fixing member 108a is, for example, the hook surface or the loop surface of a hook-and-loop fastener. When the first fixing member 108a is the hook surface of a hook-and-loop fastener, the second fixing member 108b is the loop surface of the hook-and-loop fastener. When the first fixing member 108a is the loop surface of a hook-and-loop fastener, the second fixing member 108b is the hook surface of the hook-and-loop fastener. Regarding the hook-and-loop fastener of the first fixing member 108a and the second fixing member 108b, it is also preferable to use a hook-and-loop fastener in which the hook and the loop are mixed on the same surface. Thus, the user can disassemble and assemble the first fixing member 108a and the second fixing member 108b.

[0130] The fixing positions (fixing states) of the first fixing member 108a and the second fixing member 108b can be adjusted within the range of the lengths in the long dimension directions of the first fixing member 108a and the second fixing member 108b. By adjusting the relative positions of the first fixing member 108a and the second fixing member 108b, the position of the folded-back portion 106 of the strap main body 100 is adjusted. Therefore, although the length of the second strap portion 64 is also a small amount compared to the length adjustment of the first strap portion 62, adjustment can be made.

[0131] In the case where the biological attachment device 10 is attached to the user's left upper arm UA, for example, in a state where the first fixing member 108a and the second fixing member 108b of the second strap portion 64 are fixed to a temporary position, the first strap portion 62 is fixed as described in the first embodiment. After that, the user re-fixes the first fixing member 108a and the second fixing member 108b of the second strap portion 64 to a more comfortable state when moving the left arm as needed.

[0132] The positions of the folded-back portion 106 and the loop member 110, which are the farthest positions in the second direction D2 of the second strap portion 64 with respect to one end 102 of the second strap portion 64, vary according to the relationship between the first fixing member 108a and the second fixing member 108b. Therefore, although it is negligible compared to the length adjustment range of the first strap portion 62, when the biological attachment device 10 is attached to a user, the circumference of the biological attachment device 10 can be adjusted by the second strap portion 64. The stretchability of the folded-back portion 106 is higher than that of the first stretchable portion 112 having low stretchability or non-stretchability. Therefore, when the left arm is bent and stretched to move the left arm, the folded-back portion 106 stretches and contracts in a following manner. At this time, the length in the long dimension direction of the second strap portion 64 can be adjusted, so that an appropriate attachment state of the biological attachment device 10 with respect to the user can be maintained, and compared with the case described in the first embodiment, the discomfort felt by the user can be suppressed.

[0133] According to the present embodiment, a strap 12 with electrodes and a biological attachment device 10 that can suppress discomfort felt by a user in a state of being attached to an appropriate position can be provided.

[0134] [Third Embodiment]

[0135] Use Figure 14 to describe the third embodiment. The third embodiment is a modification of the first embodiment and the second embodiment. For components that are the same as those described in the first embodiment and the second embodiment or have the same functions, the same reference numerals are used as much as possible, and detailed descriptions are omitted.

[0136] As Figure 14 shown, the folded-back portion 106 of the present embodiment has the same configuration as the first stretchable portion 112. Therefore, the folded-back portion 106 of the present embodiment has first stretchability.

[0137] For example, in a state where the biological attachment device 10 is attached to the left upper arm UA of a user, when the user stretches the left arm, the circumference of the left arm becomes smaller, and when the left arm is bent, the circumference of the left arm becomes larger compared to the state where the arm is stretched.

[0138] When the user bends the left arm and the circumference of the left arm becomes larger, the second stretchable portion 114 in the path between the folded-back portion 106 and the fixing portion 108 extends along the long dimension direction. By the extension of the second stretchable portion 114, the path length of the strap main body 100 between one end 102 and the other end 104 of the second strap portion 64 is extended. Therefore, the relative positional relationship of the loop member 110 with respect to the folded-back portion 106 is shifted, and the distance between one end 102 of the second strap portion 64 and the folded-back portion 106 is extended.

[0139] In this way, the folded-back portion 106 can also have first stretchability.

[0140] [Fourth Embodiment]

[0141] Use Figure 15 , the fourth embodiment will be described. The fourth embodiment is a modification of the first to third embodiments. For components that are the same as those described in the first to third embodiments or have the same functions, the same reference numerals are used as much as possible, and detailed descriptions are omitted.

[0142] In the present embodiment, the first strap portion 62 and the second strap portion 64 of the strap 12 of the biological attachment device 10 are continuous. The main body portion 14 is detachable from the strap 12.

[0143] One end 72 of the first strap portion 62 described in the first to third embodiments does not exist. Similarly, one end 102 of the second strap portion 64 does not exist. In the present embodiment, the base 82 of the first strap portion 62 and the base 122 of the second strap portion 64 are formed as, for example, a single base (base portion) 142. The base portion 142 has a first end portion 144 corresponding to the other end 74 of the first strap portion 62 and a second end portion 146 corresponding to the other end 104 of the second strap portion 64.

[0144] The fixing portion 108 of the second strap portion 64 in the fourth embodiment may also have a configuration including the first fixing member 108a and the second fixing member 108b described in the second embodiment.

[0145] The main body portion can be detachably attached to the position indicated by the dashed line shown by the reference numeral 14 of the strap 12, for example. The main body portion 14 can use the main body portion having an appropriate inspection function, the main body portion having an appropriate treatment function, or the main body portion combining the inspection function and the treatment function as described in the first embodiment. In addition to medical devices, ordinary devices that are not medical devices can also be used for the main body portion 14.

[0146] According to the present embodiment, similarly to the solutions described in the first to third embodiments, a strap 12 with electrodes that can suppress discomfort to the user in a state of being assembled at an appropriate position can be provided.

[0147] For example, preferably, the strap 12 with electrodes has a configuration in which the wirings 67a, 67b, 69a, 69b and the electrodes 66a, 66b, 68a, 68b can be removed. In this case, the strap 12 can be cleaned, disinfected, etc. in a state where the wirings 67a, 67b, 69a, 69b and the electrodes 66a, 66b, 68a, 68b are removed from the strap 12.

[0148] In the fourth embodiment, an example in which the strap 12 and the main body portion 14 can be detached and attached was described. The biological attachment device 10 may also be configured such that the first strap portion 62 and the second strap portion 64 are integrated and the main body portion 14 cannot be easily detached from the strap 12.

[0149] According to the present embodiment, similarly to the solutions described in the first to third embodiments, it is possible to provide a biological attachment device 10 and a strap 12 with electrodes that can suppress causing discomfort to the user in a state of being assembled at an appropriate position.

[0150] As described above, according to the first to fourth embodiments, it is possible to provide a strap 12 with electrodes and a biological attachment device 10 that can suppress causing discomfort to the user in a state of being assembled at an appropriate position.

[0151] The present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist thereof at the implementation stage. The embodiments can also be combined and implemented as appropriate, and in this case, the effects of the combination can be obtained. Moreover, various inventions are included in the above embodiments, and various inventions can be extracted by combinations selected from the disclosed plurality of constituent elements. For example, in a case where a problem can be solved and an effect can be obtained even when several constituent elements are deleted from all the constituent elements shown in the embodiment, the configuration from which the constituent elements are deleted can be extracted as an invention.

[0152] Explanation of reference numerals

[0153] 10: Biological attachment device;

[0154] 12: Strap with electrodes;

[0155] 14: Main body portion;

[0156] 22: Frame;

[0157] 30: First main body electrode;

[0158] 32: Second main body electrode;

[0159] 34: Third main body electrode;

[0160] 62: First strap portion;

[0161] 64: Second strap portion;

[0162] 66a: First strap electrode;

[0163] 66b: Second strap electrode;

[0164] 68a: Third strap electrode;

[0165] 68b: Fourth strap electrode;

[0166] 76: Telescopic part;

[0167] 76a: Folded-back part;

[0168] 82: Substrate;

[0169] 84: Stretch adjustment member;

[0170] 100: Strap main body part;

[0171] 106: Folded-back part;

[0172] 108: Fixed part (joint part);

[0173] 110: Ring member;

[0174] 112: First telescopic part;

[0175] 114: Second telescopic part;

[0176] 122: Substrate;

[0177] 124: Stretch adjustment member.

Claims

1. A strap with an electrode, the strap with an electrode comprising: A first strap portion, which is strip-shaped and extends along the long dimension direction; and A second strap portion, which is provided relative to the first strap portion in a first direction along the long dimension direction and extends along the long dimension direction, The second strap portion has: A first telescopic portion having electrical insulation, the first telescopic portion being strip-shaped with a first surface and a second surface opposite to the first surface, and having a first telescopic property along the long dimension direction; A conductive electrode is provided on the first surface of the first telescopic part; A second telescopic part overlaps with the first telescopic part on the second surface side of the first telescopic part, is in a strip shape, and has a second stretchability that stretches more greatly per unit length along the long dimension direction than the first stretchability of the first telescopic part; An annular ring member is provided at a position along the long dimension direction of the second strap part that becomes the strap end and can be connected to the first strap part; A folding part is provided between the first telescopic part and the second telescopic part and folds back at the ring member in such a way that the first telescopic part and the second telescopic part overlap; And A joint part joins the second surface of the first telescopic part and the second telescopic part, By the expansion and contraction of the second telescopic part, the relative positions of the folding part and the ring member change, adjusting the length of the strap of the belt electrode.

2. The strap with an electrode according to claim 1, wherein, The first telescopic part has: A base part that has a third stretchability that stretches more greatly along the long dimension direction than the first stretchability and forms the first surface; And A stretchability adjustment member is fixed to the base part and has a fourth stretchability that is less likely to stretch along the long dimension direction than the third stretchability, adjusting the stretchability of the first telescopic part along the long dimension direction to a state having the first stretchability and forming the second surface.

3. The strap with an electrode according to claim 1, wherein, The first telescopic part has low stretchability or non-stretchability along the long dimension direction.

4. The strap with an electrode according to claim 2, wherein, The first telescopic part has low stretchability or non-stretchability along the long dimension direction.

5. The strap with an electrode according to any one of claims 1 to 4, wherein, The folding part has the first stretchability in the long dimension direction.

6. The strap with an electrode according to any one of claims 1 to 4, wherein, The folding part has the second stretchability in the long dimension direction.

7. The strap with an electrode according to any one of claims 1 to 4, wherein, The first strap part has: a connecting part that folds back at the ring member toward the outer side of the first strap part, adjusts the length of the first strap part, and can be detachably attached to the outer side of the first strap part.

8. The strap with an electrode according to any one of claims 1 to 4, wherein, The first telescopic part of the second strap part includes: a wiring that electrically connects the electrode to a main body part of the belt with the electrode.

9. A biological attachment device, wherein, The biological attachment device has: A belt with an electrode according to any one of claims 1 to 8; and A main body part is provided between the first strap part and the second strap part of the strap and has a control substrate built therein that is electrically connected to the electrode.

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