Wearable device

Abstract

In the present invention, an adapter (100) comprises: a base part (101); a first connector (103a); a second connector (103b); a first biological electrode (104a); a second biological electrode (104b); first wiring (105a); second wiring (105b); an adjustment section (101a); and a first reinforcement base material (106a) and a second reinforcement base material (106b). The first reinforcing base material (106a) and the second reinforcing base material (106b) reinforce the strength of the base part (101) and are provided in the formation regions of the first connector (103a) and the second connector (103b) in the regions of the base part (101) that sandwich the adjustment section (101a).

Description

Wearable device

[0001] The present invention relates to a wearable device.

[0002] The number of patients with heart disease has been increasing year by year, and for early detection, long-term continuous electrocardiogram measurement in daily life is required. For this reason, development of wearable devices capable of measuring electrocardiogram waveforms not only in hospitals and facilities but also in patients' daily life at home is progressing. For example, a Holter electrocardiograph as disclosed in Non-Patent Document 1 is commercially available (Non-Patent Document 1).

[0003] Such an electrocardiograph enables stable measurement even when the wearer moves the body, and is suitable for long-time measurement. However, since a Holter electrocardiograph requires routing wiring and attaching a plurality of electrodes to correct positions, it is troublesome for a user and at the same time has a problem in wearing comfort. In addition, since the price is several hundred thousand yen, there is also a problem in terms of cost.

[0004] The above problem can be improved by forming the electrocardiograph into a patch-type configuration including a terminal and an adapter with electrodes. FIG. 15 shows an example of a patch-type electrocardiograph. The patch-type electrocardiograph includes a measurement device 130 that measures a biological signal, and an adapter 200. The measurement device 130 processes the measured biological signal and wirelessly transmits it to an external device.

[0005] The adapter 200 includes a base 201 made of a flexible material, a first connector 203a and a second connector 203b provided in an inner region, a first electrode 204a, a second electrode 204b, a first wiring 205a, and a second wiring 205b formed on the surface of the base 201 on the side in contact with a human body 131 in an outer region. Further, an adhesive sheet 202 is provided at a position that comes into contact with the human body 131. The adhesive sheet 202 is a double-sided adhesive sheet for biological use.

[0006] The first wiring 205a connects the first connector 203a to the first electrode 204a, and the second wiring 205b connects the second connector 203b to the second electrode 204b. The first connector 203a and the second connector 203b are paired with the connectors of the measuring device 130 and are detachable. Examples of the first connector 203a and the second connector 203b include snap buttons (such as American snaps).

[0007] When attaching connectors such as the snap buttons described above, the base 201 and the first wiring 205a, and the base 201 and the second wiring 205b are clamped together by the respective connectors and crimped. To prevent the base 201 from deforming due to the load of this crimping process, a reinforcing material 206, such as a resin with low elasticity, is often inserted between the base 201 and each wiring.

[0008] These small electrode-equipped adapters can be mass-produced and disposable, which can help reduce the cost of wearable devices. Furthermore, since the electrode-equipped adapters are simply attached to a part of the body, they are easy to use and improve user convenience.

[0009] promed, "Holter ECG", Promed Technology Co., Ltd., [Retrieved February 20, 2020], (https: / / www.promed-tech.com / a / products / lm1 / 169.html).

[0010] Incidentally, due to manufacturing tolerances and other factors, the distance between the first connector 203a and the second connector 203b may change slightly. In this case, if the distance between the first connector 203a and the second connector 203b differs slightly from the distance between the two connectors of the measuring device 130, it may become difficult to attach or detach the measuring device 130.

[0011] In contrast, the elasticity of the base 201 allows for fine adjustment of the distance between the first connector 203a and the second connector 203b, enabling the measuring device 130 to be attached and detached even if the connector spacing is slightly different. However, as mentioned above, using the reinforcing base material 206 hinders the elasticity of the base 201, making it impossible to fine-tune the connector spacing. When fine-tuning of the connector spacing is not possible and the measuring device 130 becomes difficult to attach and detach, the adapter becomes a defective product, leading to a decrease in manufacturing yield, impacting cost reduction, and simultaneously reducing usability.

[0012] This invention was made to solve the above-mentioned problems, and aims to make it easier to attach and detach the measuring device to the adapter by enabling fine adjustment of slight differences in the spacing between each connector, even when a reinforcing base material is used.

[0013] The wearable device according to the present invention comprises a base made of a flexible material, a first connector and a second connector formed on the surface of the base in the inner region of the base, a first biomedical electrode and a second biomedical electrode formed on the back surface of the base in the outer region of the base, a first wiring connecting the first connector and the first biomedical electrode, a second wiring connecting the second connector and the second biomedical electrode, an adjustment part provided in the base between the first connector and the second connector to vary the distance between the first connector and the second connector, and a reinforcing base material provided in the formation regions of the first connector and the second connector in the region of the base sandwiching the adjustment part to reinforce the strength of the base, wherein the reinforcing base material is not formed in the region of the adjustment part.

[0014] The wearable device according to the present invention comprises a base made of a flexible material, a first connector and a second connector formed on the surface of the base in the inner region of the base, a first biomedical electrode and a second biomedical electrode formed on the back surface of the base in the outer region of the base, a first wiring connecting the first connector and the first biomedical electrode, a second wiring connecting the second connector and the second biomedical electrode, an adjustment section provided in the base between the first connector and the second connector to vary the distance between the first connector and the second connector, a reinforcing base provided in the formation region of the first connector and the second connector to reinforce the strength of the base, and an adjustment section reinforcing base provided in the base region of the adjustment section to be flexible and reinforce the strength of the base.

[0015] As described above, according to the present invention, a reinforcing base material is provided in the formation areas of the first and second connectors in the base region sandwiching the adjustment section, thereby reinforcing the strength of the base. Even when the reinforcing base material is used, it is possible to fine-tune slight differences in the spacing between each connector, making it easier to attach and detach the measuring device to the adapter.

[0016] Figure 1 is a plan view showing a partial configuration of a wearable device according to Embodiment 1. Figure 2A is a cross-sectional view showing a partial configuration of a wearable device according to Embodiment 1. Figure 2B is a cross-sectional view showing a partial configuration of another wearable device according to Embodiment 1. Figure 2C is a cross-sectional view showing a partial configuration of another wearable device according to Embodiment 1. Figure 3 is a plan view showing a partial configuration of a wearable device according to Embodiment 2. Figure 4 is a cross-sectional view showing a partial configuration of a wearable device according to Embodiment 2. Figure 5 is a plan view showing a partial configuration of a wearable device according to Embodiment 3. Figure 6 is a plan view showing a partial configuration of another wearable device according to Embodiment 3. Figure 7 is a plan view showing a partial configuration of another wearable device according to Embodiment 3. Figure 8 is a plan view showing a partial configuration of another wearable device according to Embodiment 3. Figure 9 is a plan view showing a partial configuration of another wearable device according to Embodiment 3. Figure 10 is a plan view showing a partial configuration of another wearable device according to Embodiment 3. Figure 11 is a plan view showing a partial configuration of another wearable device according to an embodiment. Figure 12 is a plan view showing a partial configuration of another wearable device according to the embodiment. Figure 13 is a plan view showing a partial configuration of another wearable device according to the embodiment. Figure 14 is a plan view showing a partial configuration of another wearable device according to the embodiment. Figure 15 is a configuration diagram showing an example of the configuration of a patch-type electrocardiograph.

[0017] The following describes a wearable device according to an embodiment of the present invention.

[0018] [Embodiment 1] First, a wearable device according to Embodiment 1 of the present invention will be described with reference to Figures 1, 2A, 2B, and 2C. This wearable device includes an adapter 100. The adapter 100 includes a base 101, a first connector 103a, a second connector 103b, a first bioelectrode 104a, a second bioelectrode 104b, a first wiring 105a, a second wiring 105b, an adjustment part 101a, and a first reinforcing base material 106a and a second reinforcing base material 106b.

[0019] The base portion 101 is made of a flexible sheet-like material. The base portion 101 can be made of an elastically deformable material such as silicone rubber, polyethylene, foamed polyethylene, polyimide, PET (polyethylene terephthalate), PP (polypropylene), or PVC (polyvinyl chloride). In addition, an adhesive sheet 102 can be provided on the back surface of the base portion 101 where it comes into contact with the human body. The adhesive sheet 102 can be a double-sided adhesive sheet for biocompatible use.

[0020] The first connector 103a and the second connector 103b are formed on the surface of the base 101 in the inner region 151 of the base 101. The first connector 103a and the second connector 103b can be made of, for example, snap buttons (such as American snaps) or magnetic hooks.

[0021] The first bioelectrode 104a and the second bioelectrode 104b are formed on the back surface of the base 101 in the outer region 152 of the base 101. The first bioelectrode 104a and the second bioelectrode 104b are used to measure biological signals. The first bioelectrode 104a and the second bioelectrode 104b can be made of, for example, a polymer gel, an Ag / AgCl sheet, a metal, a conductive fabric, a conductive resin, a conductive rubber, etc.

[0022] The first wiring 105a connects the first connector 103a to the first bioelectrode 104a, and the second wiring 105b connects the second connector 103b to the second bioelectrode 104b. The first wiring 105a and the second wiring 105b can be made of, for example, an Ag / AgCl sheet, silver paste, copper foil, conductive fabric, conductive resin, and conductive rubber.

[0023] The adjustment section 101a is provided on the base 101 between the first connector 103a and the second connector 103b. The adjustment section 101a is structured to make the distance between the first connector 103a and the second connector 103b variable. By constructing the base 101 from an elastically deformable material, the adjustment section 101a can be made to be stretchable in the direction that changes the distance between the first connector 103a and the second connector 103b with less force compared to the base in other areas.

[0024] The first reinforcing base material 106a and the second reinforcing base material 106b are provided in the formation areas of the first connector 103a and the second connector 103b in the base portion 101 sandwiching the adjustment portion 101a, thereby reinforcing the strength of the base portion 101. The first reinforcing base material 106a is provided in the formation area of ​​the first connector 103a, thereby reinforcing the strength of the base portion 101 in this area. The second reinforcing base material 106b is provided in the formation area of ​​the second connector 103b, thereby reinforcing the strength of the base portion 101 in this area. The first reinforcing base material 106a and the second reinforcing base material 106b have, for example, a bending modulus of elasticity of 7000 kg / cm² in a steady state. 2 The above-mentioned hard plastics and hard resins such as hard rubber can be used to construct the structure. In Embodiment 1, the area of ​​the adjustment portion 101a of the base portion 101 is left without a reinforcing base material.

[0025] The first reinforcing base material 106a and the second reinforcing base material 106b can be placed between the base 101 and the first wiring 105a and the second wiring 105b, as shown in Figure 2A. The first reinforcing base material 106a and the second reinforcing base material 106b can be formed in a region (area) slightly larger than the formation region of the first connector 103a and the second connector 103b when viewed in plan from the direction normal to the base plane. The first reinforcing base material 106a and the second reinforcing base material 106b can be circular in plan view, for example. Alternatively, the first reinforcing base material 106a and the second reinforcing base material 106b can be polygonal in plan view.

[0026] Furthermore, as shown in Figure 2B, the first reinforcing base material 106'a and the second reinforcing base material 106'b can be placed on the outer surface of the base portion 101. The first connector 103a and the second connector 103b consist of a head portion and a shaft portion connected to the head portion, and their axial cross-section is substantially T-shaped. In the example shown in Figure 2B, the reinforcing base material is placed between the head portion and the base portion 101 of each connector. In this case, the planar shape (placement area) of the first reinforcing base material 106'a and the second reinforcing base material 106'b can be the same as that of the first reinforcing base material 106a and the second reinforcing base material 106b.

[0027] Furthermore, as shown in Figure 2C, the first reinforcing base material 106"a and the second reinforcing base material 106"b can be placed between the shaft portions of the first connector 103a and the second connector 103b and the open side surface of the base portion 101 into which the shaft portions are fitted.

[0028] As described above, since a reinforcing base material is provided, deformation of the base can be avoided even when the base 101 and each wiring are clamped and crimped with each connector. Furthermore, since the reinforcing base material is not formed in the adjustment portion 101a of the base 101, it is possible to fine-tune slight differences in the spacing between each connector, making it easier to attach and detach the measuring device to the adapter.

[0029] [Embodiment 2] Next, a wearable device according to Embodiment 2 of the present invention will be described with reference to Figures 3 and 4. This wearable device includes an adapter 100. The adapter 100 includes a base portion 101, a first connector 103a, a second connector 103b, a first bioelectrode 104a, a second bioelectrode 104b, a first wiring 105a, a second wiring 105b, an adjustment portion 101a, and a first reinforcing base material 107a and a second reinforcing base material 107b.

[0030] The base portion 101, the first connector 103a, the second connector 103b, the first biomedical electrode 104a, the second biomedical electrode 104b, the first wiring 105a, the second wiring 105b, and the adjustment portion 101a are the same as in the previously described embodiment 1, and a detailed explanation will be omitted.

[0031] The first reinforcing base material 107a and the second reinforcing base material 107b are provided in the area of ​​the base portion 101 sandwiching the adjustment portion 101a, in the formation areas of the first connector 103a and the second connector 103b, the formation areas of the first wiring 105a and the second wiring 105b, and the formation areas of the first biomedical electrode 104a and the second biomedical electrode 104b, thereby reinforcing the strength of the base portion 101. In Embodiment 2, the area of ​​the adjustment portion 101a of the base portion 101 is left without a reinforcing base material.

[0032] As shown in Figure 4, the first reinforcing base material 107a and the second reinforcing base material 107b can be placed between the base portion 101 and the first wiring 105a and the second wiring 105b. In a plan view taken from the direction normal to the base plane, the first reinforcing base material 107a and the second reinforcing base material 107b can first be formed in an area slightly wider than the formation area of ​​the first connector 103a and the second connector 103b. They can also be formed in an area slightly wider than the formation area of ​​the first wiring 105a and the second wiring 105b.

[0033] In the formation regions of the first connector 103a and the second connector 103b, the first reinforcing base material 107a and the second reinforcing base material 107b can be, for example, circular in plan view. Alternatively, in the formation regions of the first connector 103a and the second connector 103b, the first reinforcing base material 107a and the second reinforcing base material 107b can be polygonal in plan view.

[0034] As described above, since a reinforcing base material is provided, deformation of the base can be avoided even when the base 101 and each wiring are clamped and crimped with each connector. Furthermore, since the reinforcing base material is not formed in the adjustment portion 101a of the base 101, it is possible to fine-tune slight differences in the spacing between each connector, making it easier to attach and detach the measuring device to the adapter.

[0035] [Embodiment 3] Next, a wearable device according to Embodiment 3 of the present invention will be described with reference to Figure 5. This wearable device includes an adapter 100. The adapter 100 includes a base portion 101, a first connector 103a, a second connector 103b, a first bioelectrode 104a, a second bioelectrode 104b, a first wiring 105a, a second wiring 105b, an adjustment portion 101a, and a first reinforcing base material 106a and a second reinforcing base material 106b.

[0036] The configuration described above is the same as that of Embodiment 1 and Embodiment 2 described above. The first reinforcing base material 106a and the second reinforcing base material 106b are provided in the formation areas of the first connector 103a and the second connector 103b in the region of the base portion 101 sandwiching the adjustment portion 101a, thereby reinforcing the strength of the base portion 101. In addition, the first reinforcing base material and the second reinforcing base material can be provided in the formation areas of the first connector 103a and the second connector 103b, the formation areas of the first wiring 105a and the second wiring 105b, and the formation areas of the first biomedical electrode 104a and the second biomedical electrode 104b in the region of the base portion 101 sandwiching the adjustment portion 101a.

[0037] In Embodiment 3, the adjustment portion reinforcement base material 108 is further provided at the base of the adjustment portion 101a region and is flexible to reinforce the strength of the base portion 101. The adjustment portion reinforcement base material 108 can be formed to be thinner than the first reinforcement base material 106a and the second reinforcement base material 106b.

[0038] By providing the adjustment section reinforcing base material 108, it is not possible to increase the distance between the first connector 103a and the second connector 103b, but it is possible to shorten this distance. When the distance between the first connector 103a and the second connector 103b is shortened, the adjustment section reinforcing base material 108 deforms slightly into a convex shape in the direction normal to the plane of the base portion 101. This deformation of the adjustment section reinforcing base material 108 makes it possible to shorten the distance between the connectors. As a result, even if the distance between the two connectors of the measuring device is slightly smaller than the distance between the first connector 103a and the second connector 103b, the measuring device can be attached to and detached from the adapter 100.

[0039] Furthermore, as shown in Figures 6 and 7, the adjustment section reinforcing base materials 108a and 108b can be curved in a direction parallel to the plane of the base 101. The adjustment section reinforcing base material 108b shown in Figure 7 has a meandering shape on a plane parallel to the plane of the base 101. By providing the adjustment section reinforcing base materials 108a and 108b, the distance between the first connector 103a and the second connector 103b can be finely adjusted in the direction of extending and shortening. For example, the distance between the first connector 103a and the second connector 103b can be changed by approximately 1 mm. By making such fine adjustments, the measuring device 130 can be attached to and detached even if the connector distance is slightly different. As a result, the measuring device can be attached to and detached from the adapter 100 even if the distance between the two connectors of the measuring device is different from the distance between the first connector 103a and the second connector 103b.

[0040] Incidentally, as shown in Figures 8, 9, and 10, in a configuration that includes adjustment section reinforcing base materials 108, 108a, and 108b, a configuration that includes a first reinforcing base material 107a and a second reinforcing base material 107b can be provided. As described above, the first reinforcing base material 107a and the second reinforcing base material 107b are provided in the formation areas of the first connector 103a and the second connector 103b, the formation areas of the first wiring 105a and the second wiring 105b, and the formation areas of the first biomedical electrode 104a and the second biomedical electrode 104b in the area of ​​the base portion 101 sandwiching the adjustment section 101a, thereby reinforcing the strength of the base portion 101.

[0041] Incidentally, as shown in Figure 11, the adjustment section 101a can be made narrower in width than other areas of the base 101 when viewed in plan view from the direction normal to the plane of the base 101. With this configuration, in plan view, it becomes easier to fold the left and right parts of the base 101 within the plane of the base 101, with the center of gravity 101' of the adjustment section 101a as the center. For example, the base 101 can be made of a flexible material such as paper. In this case, the adjustment section 101a does not have much elasticity. Even in such a case, the distance between the first connector 103a and the second connector 103b can be adjusted (reduced) by folding the adjustment section 101a. As a result, even if the distance between the two connectors of the measuring device is slightly smaller than the distance between the first connector 103a and the second connector 103b, the measuring device can be attached to and detached from the adapter 100.

[0042] Furthermore, as shown in Figure 12, the adjustment portion 101b can be configured to have a curved shape in plan view that is narrower in width. The shape of the adjustment portion 101b in plan view, as seen from the direction normal to the plane of the base portion 101, is narrower in width than other areas of the base portion 101. Moreover, the position of the centroid 101' of the shape of the adjustment portion 101b in plan view, as seen from the direction normal to the plane of the base portion 101, is shifted in a direction perpendicular to the line segment connecting the first connector 103a and the second connector 103b.

[0043] Even in this case, the adjustment section 101b makes it easier to bend the left and right portions of the base 101 within the plane of the base 101, with the center of gravity 101' as the center. By providing the adjustment section 101b with this configuration between the first connector 103a and the second connector 103b, the distance between the first connector 103a and the second connector 103b can be changed more easily. As a result, the measuring device can be attached to and detached from the adapter 100 even when the distance between the two connectors of the measuring device is slightly smaller than the distance between the first connector 103a and the second connector 103b.

[0044] Further, as shown in FIG. 13, an adjusting portion 101c having a narrower width than other regions of the base portion 101 can be used. In the adjusting portion 101c, the position of the center of gravity 101' of the shape in a plan view viewed from the normal direction of the plane of the base portion 101 is shifted in a direction orthogonal to the line segment connecting the first connector 103a and the second connector 103b from the line segment. Furthermore, the adjusting portion 101c is arranged inside the extension region of the base portion 101 other than the adjusting portion 101a in a plan view viewed from the normal direction of the plane of the base portion 101. The width of the adjusting portion 101c is even smaller than that of the adjusting portion 101b.

[0045] Also in this case, the adjusting portion 101c makes it easier to bend the left and right parts of the base portion 101 around the center of gravity 101' within the plane of the base portion 101. By providing the adjusting portion 101c having this configuration between the first connector 103a and the second connector 103b, the distance between the first connector 103a and the second connector 103b can be more easily changed. Thereby, even when the distance between the two connectors of the measurement device is slightly smaller than the distance between the first connector 103a and the second connector 103b, the measurement device can be attached to and detached from the adapter 100.

[0046] Further, as shown in FIG. 14, an adjusting portion 101d in which the shape in a plan view viewed from the normal direction of the plane of the base portion 101 is curved in a direction parallel to the plane of the base portion 101 can be used. In the adjusting portion 101d, the position of the center of gravity 101' of the shape in a plan view viewed from the normal direction of the plane of the base portion 101 is shifted in a direction orthogonal to the line segment connecting the first connector 103a and the second connector 103b from the line segment.

[0047] Also in this case, the adjusting portion 101d enables the left and right parts of the base portion 101 to be bent around the center of gravity 101' within the plane of the base portion 101. By providing the adjusting portion 101d having this configuration between the first connector 103a and the second connector 103b, the distance between the first connector 103a and the second connector 103b can be more easily changed. Thereby, even when the distance between the two connectors of the measurement device is slightly smaller than the distance between the first connector 103a and the second connector 103b, the measurement device can be attached to and detached from the adapter 100.

[0048] As explained above, according to the embodiment, a reinforcing base material for reinforcing the strength of the base portion is provided in the formation regions of the first connector and the second connector in the regions of the base portion that sandwich the adjustment portion, so even if the reinforcing base material is used, fine adjustment of slight differences in the spacing between the respective connectors is enabled, and thus the measuring device can be more easily attached to and detached from the adapter.

[0049] Since measuring devices are often manufactured from hard materials in order to maintain robustness, the problem of variations in connector spacing due to manufacturing errors must be absorbed on the adapter side. To solve this problem, it is easily conceivable to use a stretchable base portion. However, the stretchability of the base portion varies in degree, and the tensile elongation generally disclosed as a physical property constant is a value under standard test conditions, and may not be reproducible in actual use environments. For this reason, it is necessary to select the base portion in consideration of the tensile elongation under actual use environments.

[0050] It should be noted that the present invention is not limited to the embodiments described above, and it is obvious that many modifications and combinations can be implemented by those having ordinary knowledge in the art within the technical idea of the present invention.

[0051] 100…Adapter, 101…Base portion, 101a…Adjustment portion, 102…Adhesive sheet, 103a…First connector, 103b…Second connector, 104a…First biological electrode, 104b…Second biological electrode, 105a…First wiring, 105b…Second wiring, 106a…First reinforcing base material, 106b…Second reinforcing base material.

Claims

1. A wearable device comprising: a base made of a flexible material; a first connector and a second connector formed on the surface of the base in the inner region of the base; a first bioelectrode and a second bioelectrode formed on the back surface of the base in the outer region of the base; a first wiring connecting the first connector and the first bioelectrode; a second wiring connecting the second connector and the second bioelectrode; an adjustment section provided on the base between the first connector and the second connector to vary the distance between the first connector and the second connector; and a reinforcing substrate provided in the formation regions of the first connector and the second connector in the region of the base sandwiching the adjustment section to reinforce the strength of the base, wherein the region of the adjustment section is an area where the reinforcing substrate is not formed.

2. A wearable device according to claim 1, wherein the reinforcing substrate is provided in the formation regions of the first wiring and the second wiring, and the formation regions of the first bioelectrode and the second bioelectrode.

3. A wearable device comprising: a base made of a flexible material; a first connector and a second connector formed on the surface of the base in the inner region of the base; a first bioelectrode and a second bioelectrode formed on the back surface of the base in the outer region of the base; a first wiring connecting the first connector and the first bioelectrode; a second wiring connecting the second connector and the second bioelectrode; an adjustment section provided on the base between the first connector and the second connector to vary the distance between the first connector and the second connector; a reinforcing substrate provided in the formation regions of the first connector and the second connector to reinforce the strength of the base; and an adjustment section reinforcing substrate provided on the base in the region of the adjustment section to be flexible and to reinforce the strength of the base.

4. A wearable device according to claim 3, wherein the reinforcing substrate is provided in the formation regions of the first wiring and the second wiring, and the formation regions of the first bioelectrode and the second bioelectrode.

5. A wearable device according to claim 3, wherein the adjustment portion reinforcing base material is formed to be thinner than the reinforcing base material, or is curved in a direction parallel to the plane of the base.

6. A wearable device according to any one of claims 1 to 5, wherein the shape of the adjustment portion in a plan view as seen from the normal direction of the plane of the base portion is narrower in width than other areas.

7. A wearable device according to any one of claims 1 to 5, wherein the adjustment portion is a wearable device in which the position of the center of gravity of the shape of the base as viewed from the normal direction of the plane of the base is shifted from the line segment connecting the first connector and the second connector in a direction perpendicular to the line segment.

8. A wearable device according to any one of claims 1 to 5, wherein the shape of the adjustment portion in a plan view as seen from the normal direction of the plane of the base portion is curved in a direction parallel to the plane of the base portion.

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