Biological information measuring device

Abstract

To provide a technology to improve device mountability and maintainability in a wearable biological information measuring device having an electrode in its band part.SOLUTION: A biological information measuring device used by being mounted on a human body includes: a body housing; a band part for mounting the body housing onto the human body, on which a plurality of electrodes are arranged; and a removable band cover formed of a non-conductive material configured to cover at least a contact face of the band part on a side that comes in contact with the human body. The electrode includes a convex part provided to protrude from the contact face of the band part. The band cover includes a plurality of openings where the convex part of the electrode is provided in a protruding manner. The electrode and the openings are configured so that the openings are covered with the convex part of the electrode when the band part is covered with the band cover.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a healthcare-related technical field, and more particularly to a biological information measuring device. [Background technology]

[0002] It has become common for individuals to measure information relating to their own physical and health (hereinafter also referred to as biological information), such as blood pressure values ​​and electrocardiogram waveforms, on a daily basis using measuring devices and to utilize the measurement results for health management. In particular, in recent years, there has been an increasing need for early detection of diseases and appropriate treatment by constantly wearing measuring devices on the body in daily life and continuously acquiring biological information, and many devices that meet such needs have been proposed (for example, Patent Document 1, etc.).

[0003] Patent Document 1 discloses a wearable biological information measuring device equipped with electrocardiogram electrodes and capable of measuring electrocardiogram waveforms. The biological information measuring device described in Patent Document 1 has a belt-shaped band that extends longitudinally (circumferentially around the wrist) and a main body attached to the band, with multiple electrodes arranged on both the band and the main body. This makes it possible to constantly detect biological information such as heart rate and electrocardiogram signals (while the device is in operation) simply by wearing the device on one arm. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-141955 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in a structure in which the electrodes that come into contact with the skin of the living body are held on the surface of a band, as in the device described in Patent Document 1, wearing the device for a long period of time can easily cause stuffiness and rashes due to substances derived from the living body (sweat, keratin, etc.). Furthermore, because the electrodes are located on the band, the band cannot be easily washed, which poses issues from the perspective of comfort (and hygiene) when worn.

[0006] In view of the above problems, the present invention aims to provide a technology that can improve the wearability and maintainability of a wearable biometric information measurement device that has electrodes in a band portion. [Means for solving the problem]

[0007] In order to solve the above problems, a biological information measuring device according to the present invention employs the following configuration: A biological information measuring device that is worn on a human body and used, A main body housing; a band portion on which a plurality of electrodes are arranged and which is used to attach the main body housing to the human body; a detachable band cover formed of a non-conductive material and configured to cover at least the contact surface of the band portion that comes into contact with the human body, the electrode has a protrusion provided so as to protrude from the contact surface of the band portion, the band cover has a plurality of openings through which the protrusions of the electrodes can protrude, When the band portion is covered with the band cover, the electrodes and the openings are The opening is configured to be covered by the protrusion of the electrode. It is a biological information measuring device.

[0008] With the above configuration, the cleanliness of the part that constantly comes into contact with the living body can be easily maintained by simply replacing the band cover. In addition, cleaning can be completed simply by attaching and detaching the band cover, which improves the maintainability of the device and increases the operating time of the device (the time for measuring biological information).

[0009] In addition, because the band cover comes into contact with the skin surface when in use, the material of the band cover can be devised (i.e., regardless of the material of the band) to prevent stuffiness and rashes when wearing the device. Furthermore, because the band cover can be designed in a variety of ways, it can be easily replaced according to the occasion.

[0010] The electrode may also be configured so that the protrusion is detachable from the band. Specifically, for example, the band may have a base connected to a signal line, and the protrusion, configured to protrude from the contact surface between the band and the skin of the living body, may be fitted to the base in the manner of a snap button, thereby enabling attachment and detachment. Alternatively, at least one of the protrusion or base of the electrode may be formed of a magnet, and the electrodes may be attached and detached by magnetic attraction. This configuration allows the electrodes as well as the band cover to be replaced, further improving the maintainability of the device.

[0011] Furthermore, when the band portion is covered with the band cover, the band cover may be fixed by sandwiching at least the peripheral edge of the opening between the protrusion of the electrode and the contact surface. That is, by sandwiching the band cover between the contact surface of the band and the protrusion of the electrode (the end on the contact surface side), the position of the opening of the band cover may be prevented from shifting.

[0012] With this configuration, the convex portion of the electrode can be assembled after the band cover is attached to the band, making attachment easy, and by assembling the convex portion in this manner, it is also possible to prevent the opening of the band cover from shifting out of position.

[0013] In addition, the band cover may be formed from an elastic material, and the electrode and the opening may be configured so that the opening is covered by the convex portion of the electrode even when the opening is expanded to its maximum extent due to the elasticity.

[0014] If the band cover is made of a stretchable material, the opening will expand when a pulling force is applied to the band cover. In this case, if the opening expands to a size larger than the diameter of the electrode's protrusion, the opening in the band cover may shift position and cover the electrode. In this regard, by reducing the size of the opening or using a material that is not highly stretchable, the diameter of the opening, even when expanded to its maximum extent, can be configured to be smaller than the diameter of the electrode's protrusion, thereby preventing the electrode from coming off the opening even without the electrode pressing down on the periphery of the opening.

[0015] The protrusion of the electrode may have an elastic member at a base end portion of the outer periphery in a plan view, and when the band portion is covered with the band cover, friction with the elastic member restricts movement of the peripheral edge of the opening, thereby fixing the band cover in place. The elastic member may be made of, for example, a resin such as rubber.

[0016] With this configuration, even if the force with which the band cover is clamped between the protrusions of the electrode and the contact surface of the band is weak, the opening of the band cover will not be displaced due to the frictional force of the elastic member. This can prevent the following from happening.

[0017] The band may have a plurality of conductive fitting portions that fit with the protrusions, the protrusions of the electrodes being detachable from the fitting portions, and a plurality of signal lines electrically connecting a corresponding one of the fitting portions to the main body housing may be arranged inside the band, each of the signal lines being arranged so as to avoid the other fitting portions. That is, the electrodes on the band may be composed of fitting portions and protrusions arranged on the band. This allows the protrusions (i.e., the portions that come into contact with the living body) of the multiple electrodes provided on the band to be easily replaced, resulting in high maintainability. Furthermore, at least the fitting portion may have a magnetic force, and the fitting portion and the protrusions may be fixed by the magnetic force.

[0018] Furthermore, the protrusions of the electrodes may be configured to be detachable from any of the multiple fitting portions, and the arrangement and / or number of the electrodes may be changed by providing fitting portions to which the protrusions are not fitted. That is, the band may be configured to have more fitting portions than the number of electrodes actually used to measure biological information. This configuration allows the electrode arrangement to be easily changed according to individual differences in the size of the attachment site (e.g., arm circumference), thereby providing a highly convenient device. After determining the electrode arrangement, a band cover whose opening positions match the electrode protrusions can be used to cover the fitting portions to which the protrusions are not fitted.

[0019] The fitting portion may be configured to be slidable, and the arrangement of the electrodes may be changed by sliding the fitting portion. Even with this configuration, the arrangement of the electrodes can be easily changed.

[0020] The band cover may also be configured to have an adhesive surface on the side that comes into contact with the contact surface. With this configuration, the band cover does not need to be formed into a cylindrical or bag-like shape to cover both sides of the band, and can be used by attaching it only to the contact surface. Furthermore, by configuring the adhesive surface to be washable with water using a gel sheet or the like, repeated use becomes possible.

[0021] The present invention can be achieved by combining the above-described configurations together as long as no technical contradiction occurs. [Effects of the Invention]

[0022] According to the present invention, it is possible to provide a technology that can improve the ease of wearing and maintenance of a wearable biological information measuring device that has electrodes on a band portion. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a perspective view showing an outline of a biological information measuring device according to an embodiment of the present invention. [Figure 2] Fig. 2A is a perspective view of the appearance of the biological information measurement device according to the embodiment with a band cover removed, and Fig. 2B is a diagram showing an outline of the inner circumferential surface of the band of the biological information measurement device according to the embodiment. [Figure 3] 3A and 3B are first and second schematic diagrams showing the structure and arrangement of electrodes on a fixing band according to an embodiment of the present invention; [Figure 4] Fig. 4A is a first schematic plan view showing the configuration of a band cover according to an embodiment, and Fig. 4B is a second schematic plan view showing the configuration of a band cover according to an embodiment. [Figure 5] FIG. 5 is a block diagram showing the functional configuration of the biological information measuring device according to the embodiment. [Figure 6]Fig. 6A is a schematic diagram showing the positional relationship between the electrodes and the band cover according to Modification 1 of the embodiment, and Fig. 6B is a schematic diagram showing the positional relationship between the electrodes and the band cover according to Modification 2 of the embodiment. [Figure 7] FIG. 7 is a schematic diagram showing the configuration of an electrode according to the third modification of the embodiment. [Figure 8] Fig. 8A is a schematic diagram showing the configuration of a band and electrodes according to Modification 4 of the embodiment, and Fig. 8B is a schematic diagram showing the configuration of a band and electrodes according to Modification 5 of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] <Embodiment> Specific embodiments of the present invention will be described below with reference to the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative positions, and the like of the components described in the following embodiments are not intended to limit the scope of the present invention.

[0025] (Overall configuration of the device) Figures 1, 2A and 2B are schematic diagrams showing the configuration of the bioinformation measuring device 1 in embodiment 1, where Figure 1 shows an external oblique view of the bioinformation measuring device 1, Figure 2A is an external oblique view of the bioinformation measuring device 1 with the band cover 40 described later removed, and Figure 2B shows an outline of the inner surface (the surface that comes into contact with the skin surface; hereinafter, also referred to as the "contact surface") of the band portion 20 of the bioinformation measuring device 1 with the band cover removed.

[0026] As shown in Figures 1, 2A and 2B, the biometric information measuring device 1 is generally configured to have a main body part 10 including a main body housing 11, an LED indicator 12, an operation button 13, a pulse wave sensor 14, a control unit 110, etc., a band part 20 including a fixing band 21, a band loop 22 and a plurality of electrodes 30a, 30b, 30c, 30d, 30e, 30f, and a band cover 40 configured to be detachable from the band part 20.

[0027] Although not shown, the fixing band 21 is provided with a hook and loop fastener portion, and by passing one end of the fixing band 21 through the band loop 22 and then folding it back to engage the hook and loop fastener, the fixing band 21 can be made into a ring shape and fixed to the attachment location.

[0028] (Electrode configuration) Next, the configuration of electrodes 30a, 30b, 30c, 30d, 30e, and 30f of the biological information measuring device 1 according to this embodiment will be described with reference to Figures 3A and 3B. Note that, hereinafter, unless it is necessary to distinguish between the electrodes, they will be described as electrode 30. Figures 3A and 3B are schematic diagrams showing the structure of electrode 30 and its arrangement on fixing band 21.

[0029] 3A and 3B, each electrode 30 generally has a dome-shaped protrusion 31 protruding from the contact surface side of the fixing band 21, and a fitting portion 32 disposed within the fixing band 21. Each electrode 30 is made of a conductive material (such as stainless steel) and is electrically connected to the main body 10 via a conductive wire 23 disposed within the fixing band 21. The user can acquire an electrocardiogram signal via each electrode 30 by wearing the biological information measuring device 1, for example, on the left upper arm using the fixing band 21 so that the protrusion 31 of each electrode 30 contacts the skin surface.

[0030] As shown in FIG. 3B, the protrusion 31 of the electrode 30 is made up of a dome-shaped umbrella portion 311 and a cylindrical stem portion 312 extending from the center of the umbrella portion 311. 3A shows the state in which the projection 31 and the fitting portion 32 are fitted together (the attached state), and FIG. 3B shows the state in which the projection 31 and the fitting portion 32 are released from the fitting (the detached state).

[0031] (Band cover configuration) Next, the configuration of the band cover 40 will be described with reference to Figures 4A and 4B. Figure 4A is a schematic plan view of the band cover 40 as viewed from the contact surface side, and Figure 4B is a schematic plan view of the band cover as viewed from the top surface side. As shown in Figures 4A and 4B, the band cover 40 has a generally rectangular shape with a longitudinal direction in plan view, and is formed into a flat tubular shape with both longitudinal ends open. The band cover 40 is formed from a non-conductive, stretchable fabric material, but the method for forming it is not particularly limited, and it may be formed by knitting, or by joining multiple fabric materials together by sewing or heat welding, for example.

[0032] 4A , band cover 40 is provided with a plurality of electrode openings 41a, 41b, 41c, 41d, 41e, and 41f for exposing each electrode 30 when band cover 40 is attached to band portion 20, and a main body opening 42 for exposing main body housing 11. Note that, hereinafter, when there is no need to particularly distinguish between electrode openings 41a, 41b, 41c, 41d, 41e, and 41f, they will be described as electrode openings 41. Each electrode opening 41 is provided only on the contact surface side of band cover 40, and main body openings 42 are provided on both the contact surface side and the opposite surface of band cover 40.

[0033] When attaching the band cover 40 to the band part 20, for example, one end of the fixing band 21 is inserted from one longitudinal end opening of the band cover 40 until the positions of the electrodes 30 and the electrode openings 41 are aligned. At this time, it is necessary to pass through the main body housing 11, but because the band cover 40 is stretchable, the main body housing 11 can be passed through without hindrance, and the main body housing 11 can then be exposed from the main body opening 42.

[0034] Here, the positional relationship between the electrode 30 and the electrode opening 41 when the band cover 40 is correctly attached to the band portion 20 will be described with reference to Fig. 3A. As shown in Fig. 3A, the state in which the electrode opening 41 of the band cover 40 is covered by the convex portion 31 (more specifically, the umbrella portion 311) of the electrode 30 is the state in which the band cover 40 is correctly attached. In this state, the band cover 40 does not impede contact between the electrode 30 and the skin surface, and it is possible to prevent the fixing band 21 from coming into direct contact with the skin surface.

[0035] In order to have the entire electrode opening 41 of the band cover 40 covered by the protrusion 31 of the electrode 30, for example, the band cover 40 may be attached with the protrusion 31 of the electrode 30 removed, and then the protrusion 31 may be fitted into the fitting portion 32 exposed from the electrode opening 41. Alternatively, even if the protrusion 31 is already fitted, the electrode opening 41 can be expanded by stretching the vicinity of the electrode opening 41 and letting its peripheral portion slip into the gap between the contact surface of the fixing band 21 and the bottom surface of the umbrella portion 331 of the protrusion 31, thereby making it possible to have the entire electrode opening 41 covered by the protrusion 31.

[0036] (Functional configuration) Next, the functional configuration of the biological information measuring device 1 will be described with reference to Fig. 5. Fig. 5 is a block diagram showing the functional configuration of the biological information measuring device 1. As shown in Fig. 5, the biological information measuring device 1 is configured to include the following functional units: a control unit 110, an electrode unit 101, a pulse wave sensor unit 102, a timer unit 104, a memory unit 105, a display unit 106, an operation unit 107, a power supply unit 108, and a communication unit 109.

[0037] The control unit 110 is a means for controlling the biological information measuring device 1, and is configured to include, for example, a CPU (Central Processing Unit). When the control unit 110 receives a user's operation via the operation unit 107, it controls each component of the biological information measuring device 1 to execute various processes such as biological information measurement and information communication according to a predetermined program. The predetermined program is stored in the storage unit 105, which will be described later, and is read from there. The control unit 110 also includes, as functional modules, an electrocardiogram measurement unit 111 and a pulse wave measurement unit 112.

[0038] The electrocardiogram measurement unit 111 acquires time-series data of the electrocardiogram signal from the electrode unit 101, measures the user's electrocardiogram waveform, and stores ECG (Electrocardiogram) data in the storage unit 105. The pulse wave measurement unit 112 acquires time-series data of the pulse wave signal from the pulse wave sensor unit 102, measures the user's pulse waveform, and stores PPG (Photoplethysmogram) data in the storage unit 105.

[0039] The electrode unit 101 includes six electrodes 30a, 30b, 30c, 30d, 30e, and 30f, and functions as a sensor unit that detects electrocardiographic signals. Specifically, when the biological information measurement device 1 is worn, two electrodes positioned opposite each other form a pair, and an electrocardiographic signal is detected based on the potential difference between the paired electrodes. In other words, three types of electrocardiographic signals can be detected simultaneously from three pairs of electrodes.

[0040] The pulse wave sensor unit 102 includes a desired pulse wave sensor 14 and functions as a sensor unit that detects pulse wave signals. In this embodiment, the pulse wave sensor 14 is a reflective photoplethysmographic sensor that is placed on the underside of the main body housing 11 (i.e., the surface that comes into contact with the skin when worn), as shown in FIG. 2B. A reflective photoplethysmographic sensor irradiates a living body with infrared light, red light, or green light, and detects the light reflected within the living body using a photodiode or the like, thereby detecting the blood flow rate (changes in blood vessel volume) that changes with the heartbeat.

[0041] Each of the above sensor units including the electrode unit 101 includes, although not shown, an amplifier unit that amplifies the signal output from the sensor, an A / D conversion unit that converts an analog signal into a digital signal, and a filter circuit that removes noise components.

[0042] The timer unit 104 has a function of measuring time by referring to an RTC (Real Time Clock) (not shown), and for example, counts the time when a predetermined event occurs and outputs the counted time.

[0043] The storage unit 105 includes a main storage device (not shown) such as RAM (Random Access Memory), and stores various information such as application programs and biological information data measured by each measurement unit (described later). In addition to the RAM, the storage unit 105 is also provided with a long-term storage medium such as a flash memory, enabling long-term storage of biological information.

[0044] The display unit 106 is configured to include an LED indicator 12, and notifies the user of the device status, the occurrence of a predetermined event, etc. by lighting or blinking the LED indicator 12. The operation unit 107 includes a plurality of operation buttons 13, and has the function of accepting input operations from the user via the operation buttons and causing the control unit 110 to execute processing according to the operation.

[0045] The power supply unit 108 is configured to include a battery (not shown) that supplies the power necessary to operate the device. The battery may be a secondary battery such as a lithium ion battery, or may be a primary battery. In addition, in the case of a configuration including a secondary battery, a charging terminal or the like may be used. The communication unit 109 includes an antenna for wireless communication, a wired communication terminal (neither of which is shown), and the like, and has a function of communicating with other devices such as an information processing terminal. Note that the communication unit 109 may also function as a charging terminal.

[0046] According to the biological information measuring device 1 of this embodiment as described above, even when the electrodes 30 are provided on the band unit 20, the surface of the fixing band 21 that comes into contact with the skin (excluding the electrode 30 portion) can be covered with the band cover 40, thereby maintaining the cleanliness of the band unit 20. Furthermore, cleaning can be completed simply by attaching and detaching the band cover, which improves the maintainability of the device and increases the operating time of the device (the time for measuring biological information).

[0047] Furthermore, because it is the band cover 40 that comes into contact with the skin surface when the biological information measurement device 1 is worn, choosing the right material for the band cover 40 can prevent stuffiness and rashes when the device is worn. In other words, there is no need to consider whether the material of the fixing band 21 will be in constant contact with the body. Furthermore, because the band cover 40 can be designed in a variety of ways, it can be easily replaced to suit the occasion.

[0048] Furthermore, the electrode 30 of the band part 20 is configured to have a protrusion 31 that comes into contact with the living body and a fitting part 32 that is placed inside the fixing band 21, and because the protrusion 31 is configured to be detachable from the fitting part 32, the protrusion 31 can be easily replaced, further improving the maintainability of the device. Furthermore, because the protrusion 31 is detachable, the band cover 40 can also be easily attached and detached.

[0049] <Modification> The structure of the electrode 30 and the fixing band 21, and the relative positioning of the electrode 30 and the electrode opening 41 in the band cover 40 can be configured in various ways other than those described in the above embodiment. Such modifications will be described below. In each of the following modifications, the same components as those in the biological information measuring device 1 according to the above embodiment will be designated by the same reference numerals and will not be described again, and only the parts that differ from the above embodiment will be mainly described. In addition, in the schematic diagrams of each modification, components that do not require explanation are omitted as appropriate.

[0050] (Variation 1) 6A is a schematic diagram showing the configuration of the electrode 30 and the electrode opening 41 of the first modified example. In this modified example, when the band cover 40 is attached as shown in FIG. 6A, the peripheral edge of the electrode opening 41 is sandwiched between the protrusion 31 of the electrode 30 (more specifically, the end face of the umbrella portion 311) and the contact surface of the fixing band 21. That is, when the protrusion 31 of the electrode 30 is fitted into the fitting portion 32, the gap between the contact surface of the fixing band 21 and the end face of the umbrella portion 311 is configured to be smaller than the thickness of the band cover 40. With this configuration, the periphery of the electrode opening 41 is fixed, and it is possible to prevent the band cover 40 from shifting position.

[0051] (Variation 2) 6B is a schematic diagram showing the state of the electrode opening 46 of the band cover 45 according to a second modified example and the positional relationship with the electrode 30. In this modified example, as shown in FIG. 6B, the diameter of the electrode opening 46 of the band cover 45 is configured to be narrower than that of the embodiment. As a result, even when the electrode opening 46 is expanded to its maximum extent, the electrode opening 46 remains covered by the protrusion 31 of the electrode 30. With this configuration, even if the peripheral edge of the electrode opening 46 is not sandwiched between the protrusion 31 and the contact surface, it is possible to prevent the electrode opening 46 from shifting position and the protrusion 31 of the electrode 30 from being covered by the band cover 45.

[0052] (Variation 3) FIG. 7 is a schematic diagram showing the configuration of an electrode 60 according to a third modified example. The electrode 60 according to this modified example is generally similar to that of the first embodiment, consisting of a dome-shaped protrusion 61 protruding from the contact surface of the fixing band 21 and a fitting portion 62 disposed within the fixing band 21, with the two fitting portions detachably fitted together. However, this modified example differs from the first embodiment in that a resin elastic member 63 is provided at the base end (the end on the contact surface side) of the outer periphery of the umbrella portion 611 of the electrode protrusion 61. With this configuration, when the band cover 40 is attached, friction generated between the elastic member 63 and the band cover 40 restricts movement of the peripheral edge of the electrode opening 41. With this configuration, even if the force with which the band cover 40 is clamped between the protrusion 61 of the electrode 60 and the contact surface of the fixing band 21 is weak, the frictional force of the elastic member 63 can prevent the electrode opening 41 in the band cover 40 from shifting out of position.

[0053] (Variation 4) 8A is a schematic diagram showing the configuration of a fixing band 25 according to a fourth modified example. In the above embodiment, the fixing band 21 is configured to have fitting portions 32 in a number corresponding to the number (six) of electrodes 30. On the other hand, in this modified example, the fixing band 25 is provided with conductive fitting portions 32 that fit with the protrusions 31 of six or more electrodes 30, resulting in fitting portions 32 that do not fit with all six protrusions 31. Note that, in the fixing band 25, conductive wires (signal wires) 26 that are electrically connected to the main body housing 11 are connected to all fitting portions 32, and each conductive wire 26 is arranged so as to avoid fitting portions 32 other than the fitting portion 32 to which it is connected.

[0054] The protrusions 31 of the electrodes 30 are configured to be able to fit into any of the fitting portions 32, so the arrangement of the electrodes 30 on the band portion can be changed depending on which fitting portion 32 the protrusions 31 are fitted into. Also, by increasing or decreasing the number of protrusions 31, the number of electrodes 30 that function as sensors can be changed.

[0055] With this configuration, the arrangement and number of electrodes can be easily changed according to individual differences in the size of the part of the body where the device is worn (for example, arm circumference), thereby providing a highly convenient device. As shown in Fig. 8A, by using a band cover 40 in which the positions of the protrusions 31 and the electrode openings 41 match after the electrode arrangement has been determined, the fitting portions 32 in which the protrusions 31 are not fitted can be covered with the band cover 40.

[0056] (Variation 5) FIG. 8B is a schematic diagram showing the configuration of a fixing band 27 and an electrode 70 according to a fifth modification. Similar to the above examples, this modification includes an engaging portion 72 and a detachable protrusion 71. However, the engaging portion 72 is configured to slide longitudinally within the fixing band 27, allowing the position of the electrode 70 to be changed by sliding the engaging portion 72. The white double-headed arrow in FIG. 8B indicates the range within which the engaging portion 72 can slide. Specifically, for example, a rail (not shown) can be provided within the fixing band 27, the engaging portion 72 can be positioned on the rail, and a large opening can be provided on the contact surface of the fixing band 27, with the entire opening covered by a cover member 75 that moves with the engaging portion 72. In this modification, after each electrode 70 is positioned, a band cover 40 having an electrode opening 41 formed in a location that matches the electrode 70 position can be attached.

[0057] <Other> The above examples are merely illustrative of the present invention, and the present invention is not limited to the specific embodiments described above. The present invention is capable of various modifications and combinations within the scope of its technical concept, in addition to the above examples. For example, in each of the above examples, the electrodes are connected to the protrusions 31 and the engagement portions 3 Although the above examples show a configuration in which the protrusion 2 is detachable, the electrode does not necessarily have to be configured in this manner, and the protrusion does not necessarily have to be detachable. The band cover can be attached as long as there is a gap between the end face of the protrusion and the contact surface of the fixing band so that the periphery of the electrode opening in the band cover can be inserted. Furthermore, although the shape of the protrusion is configured to protrude in a dome shape in each of the above examples, it does not necessarily have to be configured in this manner, and various shapes can be adopted for the shape of the protrusion of the electrode (i.e., the part that comes into contact with the skin surface).

[0058] Furthermore, while the band cover is tubular in the above examples, it does not necessarily have to be this way and can be configured, for example, as a sticker with an adhesive surface. That is, the band cover can be attached to the band portion by attaching the adhesive surface of the sticker provided with the electrode openings to the contact surface of the fixing band. Even with this configuration, discomfort when wearing the device can be reduced by forming the surface opposite the adhesive surface (i.e., the surface that comes into contact with the skin when the band cover is attached) from a fabric material.

[0059] Furthermore, when the band cover is made into a sticker-like shape, the adhesive surface can be made of a gel mat such as polyurethane, which makes it possible to provide a sticker-like band cover that can be washed with water and reused many times.

[0060] Furthermore, the biological information measuring device does not need to be equipped with a pulse wave sensor, and the present invention can also be applied to a measuring device that measures only electrocardiogram waveforms. [Explanation of symbols]

[0061] 1. Biological information measuring device 10 Main body 11 Main body 12 LED indicator 13 Operation buttons 14. Pulse wave sensor 101...electrode part 102 Pulse wave sensor unit 104 Timer section 105...Storage section 106...Display section 107...Operation unit 108...Power supply section 109···Communications Department 110 Control unit 20. Band 21, 25, 27... Fixing band 22 Band loop 23, 26... Conductive wire 30, 30a, 30b, 30c, 30d, 30e, 30f, 60, 70...electrode 31, 61, 71.... Convex part 32, 62, 72...Mating part 40, 45... band cover 41, 46...Aperture for electrode 42 Main body opening 63 Elastic member

Claims

1. A biological information measuring device that is worn on a human body and used, A main body housing; a band portion on which a plurality of electrodes are arranged and which is used to attach the main body housing to the human body; a detachable band cover formed of a non-conductive material and configured to cover at least the contact surface of the band portion that comes into contact with the human body, the electrode has a protrusion provided so as to protrude from the contact surface of the band portion, the band cover has a plurality of openings through which the protrusions of the electrodes can protrude, The electrode and the opening are configured such that, when the band portion is covered with the band cover, the opening is covered by the convex portion of the electrode. Biometric information measuring device.

2. The electrode is configured so that the protrusion is detachable from the band portion. The biological information measuring device according to claim 1 .

3. When the band portion is covered with the band cover, the band cover is fixed by sandwiching at least the peripheral edge of the opening between the protrusion and the contact surface of the electrode. The biological information measuring device according to claim 2 .

4. The band cover is made of a stretchable material, The electrode and the opening are configured such that the opening is covered by the convex portion of the electrode even when the opening is in a state of being expanded to its maximum extent due to the stretchability. The biological information measuring device according to claim 2 .

5. The protrusion of the electrode has an elastic member provided at a base end portion of an outer periphery thereof in a plan view, When the band cover covers the band portion, the movement of the peripheral edge of the opening is restricted by friction with the elastic member, thereby fixing the band cover in place. The biological information measuring device according to claim 2 .

6. the band portion is provided with a plurality of conductive fitting portions that fit with the protrusions, and the protrusions of the electrode are detachable from the fitting portions; A plurality of signal lines are arranged inside the band portion, each of which electrically connects a corresponding one of the fitting portions to the main body housing, and each of the signal lines is arranged so as to avoid the other fitting portions. The biological information measuring device according to claim 2 .

7. At least the fitting portion has a magnetic force, and the fitting portion and the protrusion are fixed together by the magnetic force. The biological information measuring device according to claim 6 .

8. The protrusions of the electrodes are configured to be detachable from any of the plurality of fitting portions, and the arrangement and / or the number of the electrodes is changeable by providing the fitting portions to which the protrusions are not fitted. The biological information measuring device according to claim 6 .

9. The fitting portion is configured to be slidable, and the arrangement of the electrodes can be changed by sliding the fitting portion. The biological information measuring device according to claim 6 .

10. The band cover has an adhesive surface on the side that comes into contact with the contact surface. The biological information measuring device according to claim 1 .

Images