Biological information measurement device, biological information measurement system, and charger

Abstract

The present invention increases the withstand voltage between a biological information measurement electrode and a charging terminal without increasing the size of a biological information measurement device. This biological information measurement device comprises: an electrocardiographic measurement means including an electrode for measuring an electrocardiographic waveform of a person to be measured; a main body part including a bottom portion positioned on a side that comes into contact with an arm part of the person to be measured when the device is worn; a charging terminal to which power for charging is input; and an insulating member separating the charging terminal and the electrode.

Description

Biological information measuring device, biological information measuring system, and charger

[0001] The present invention relates to a biological information measuring device that is worn on a human body, a biological information measuring system that includes the biological information measuring device, and a charger that is used to charge the biological information measuring device.

[0002] In recent years, it has become common for individuals to measure their own physical and health information (hereinafter also referred to as biological information), such as electrocardiogram signals and blood pressure values, on a daily basis using measuring devices and to utilize the measurement results for health management. This has led to an increasing demand for devices that emphasize portability, and portable measuring devices that can be worn on the wrist have been proposed (for example, see Patent Document 1, etc.).

[0003] Patent Literature 1 discloses a wearable device that can be worn on a human wrist and measure biometric information such as electrocardiogram signals. The back surface of the wearable device is provided with biometric electrodes for measuring biometric information and a charging terminal for charging a built-in battery. In a compact biometric measuring device such as a wearable device, if the biometric electrodes and the charging terminal are arranged on the same surface, the withstand voltage between the biometric electrodes and the charging terminal decreases. On the other hand, increasing the distance between the biometric electrodes and the charging terminal in an attempt to increase the withstand voltage results in an increase in the size of the biometric measuring device.

[0004] International Publication No. 2023 / 036073

[0005] In view of the above-described conventional technology, the present invention aims to provide a technology that can increase the withstand voltage between a bioinformation measurement electrode and a charging terminal without increasing the size of the bioinformation measurement device.

[0006] In order to solve the above problems, the present invention provides a bioinformation measuring device comprising: an electrocardiogram measuring means including electrodes for measuring the electrocardiogram waveform of the subject; a main body including a bottom portion positioned on the side that contacts the subject's arm when worn; a charging terminal into which power for charging is input; and an insulating member that separates the charging terminal and the electrodes.

[0007] In this way, by separating the bioinformation measurement electrode, which is the electrode for measuring electrocardiogram waveforms, from the charging terminal by an insulating member, there is no need to increase the distance between the bioinformation measurement electrode and the charging terminal, so the withstand voltage between the bioinformation measurement electrode and the charging terminal can be increased without increasing the size of the bioinformation measurement device.

[0008] In the present invention, the insulating member may cover the arm side of the charging terminal provided on the bottom portion.

[0009] This further improves the insulation between the biological information measurement electrodes and the charging terminals, thereby making it possible to increase the withstand voltage between the back panel information measurement electrodes and the charging terminals.

[0010] In addition, in the present invention, a bottom cover may be provided that is disposed on the bottom and covers an area other than the electrodes, and the insulating member may constitute at least a part of the bottom cover.

[0011] With this, the bottom cover of the main body of the biological information measurement device can increase the withstand voltage between the biological information measurement electrodes and the charging terminal without increasing the size of the biological information measurement device.

[0012] In the present invention, the insulating member may have an openable and closable insertion portion into which a charger-side terminal electrically connected to the charging terminal is inserted.

[0013] This prevents the vital information measurement device from becoming larger, and the insulating member that can increase the withstand voltage between the vital information measurement electrodes and the charging terminals does not impair the ease of the charging operation.

[0014] In addition, in the present invention, the insulating member may be elastic, and there may be a space between the charging terminal and the insulating member covering the arm side of the charging terminal that allows the insulating member to deform toward the charging terminal side when the charger side terminal is inserted.

[0015] According to this, the insulating member deforms in response to the insertion operation of the charger side terminal, so that the withstand voltage between the vital information measurement electrode and the charging terminal can be maintained even when taking into account the insertion operation of the charger side terminal.

[0016] The present invention may further comprise a blood pressure measuring means including a cuff for measuring the blood pressure of the subject, and the bottom cover may cover at least a portion of the cuff.

[0017] This makes it possible to increase the withstand voltage between the biological information measurement electrode and the charging terminal without increasing the size of the biological information measurement device, even in a biological information measurement device that measures blood pressure as biological information.

[0018] The present invention also provides a biological information measurement system including a biological information measurement device that measures biological information and a charger for charging the biological information measurement device, the biological information measurement system comprising: electrocardiogram measuring means including electrodes for measuring the electrocardiogram waveform of a person being measured; a main body including a bottom portion located on the side that contacts the arm of the person being measured when the device is worn and a surface portion located on the opposite side to the bottom portion; a charging terminal that is located on the bottom portion and to which power for charging is input; an insulating member that covers the arm side of the charging terminal and has an openable / closable insertion portion into which a charger side terminal electrically connected to the charging terminal is inserted; a bottom support portion on which the charger side terminal is provided; a surface support portion that supports the surface portion of the biological information measurement device with the charger side terminal electrically connected to the charging terminal and positions the main body portion of the biological information measurement device with respect to the charger side terminal; and a connection portion that openably and closably connects the surface support portion and the bottom support portion. The charger electrically connects the charging terminal and the charger-side terminal by closing the surface support part, which supports the surface part of the biological information measuring device, against the bottom support part.

[0019] In this way, by separating the bioinformation measurement electrode, which is the electrode for measuring electrocardiogram waveforms, from the charging terminal by an insulating member, there is no need to increase the distance between the bioinformation measurement electrode and the charging terminal, so a bioinformation measurement system can be constructed using a bioinformation measurement device that can increase the withstand voltage between the bioinformation measurement electrode and the charging terminal without increasing the size, and a charger that can simply and reliably charge the bioinformation measurement device.

[0020] Furthermore, in the present invention, the surface portion may have a display portion capable of displaying information, the main body portion may have a side portion between the surface portion and the bottom portion, and the surface support portion may have a side wall portion in contact with the side portion, including both sides of the main body portion and one of the sides perpendicular to the both sides, and a bottom wall portion covering at least a portion of the display portion.

[0021] This allows the biological information measuring device to be appropriately positioned relative to the charger, and various information such as charging progress information to be confirmed on the partially exposed display unit.

[0022] In the present invention, the charger-side terminal may be provided on the bottom support portion so as to be spring-expandable in a direction of connection with the charging terminal.

[0023] This allows the charger-side terminal to be pressed against the charging terminal by spring elasticity, thereby enabling a more reliable electrical connection between the charger and the biological information measuring device.

[0024] The present invention also provides a charger used to charge a vital information measuring device comprising: an electrocardiogram measuring means including electrodes for measuring the electrocardiogram waveform of the person being measured; a main body including a bottom portion located on the side that contacts the arm of the person being measured when the device is worn and a surface portion located on the opposite side of the bottom portion; a charging terminal provided on the bottom portion and into which power for charging is input; and an insulating member covering the arm side of the charging terminal and having an openable and closable insertion portion into which a charger side terminal electrically connected to the charging terminal is inserted, wherein the charger comprises: a bottom support portion on which the charger side terminal is provided; a surface support portion supporting the surface portion of the vital information measuring device, the charger side terminal being electrically connected to the charging terminal, and positioning the main body portion of the vital information measuring device relative to the charger side terminal; and a connection portion connecting the surface support portion and the bottom support portion in an openable and closable manner, wherein the charging terminal and the charger side terminal are electrically connected by closing the surface support portion that supports the surface portion of the vital information measuring device against the bottom support portion.

[0025] According to this, since the electrode for measuring electrocardiogram waveforms, which is the bioinformation measuring electrode, is separated from the charging terminal by an insulating member, there is no need to increase the distance between the bioinformation measuring electrode and the charging terminal, so it is possible to provide a charger that can easily and reliably charge a bioinformation measuring device that can increase the withstand voltage between the bioinformation measuring electrode and the charging terminal without increasing the size.

[0026] According to the present invention, it is possible to increase the withstand voltage between the biological information measurement electrodes and the charging terminals without increasing the size of the biological information measurement device.

[0027] FIG. 1 is an external perspective view showing an outline of a biological information measuring device according to an embodiment of the present invention. FIG. 2 is a side view showing an outline of the biological information measuring device according to the embodiment. FIG. 3 is an explanatory diagram showing the positional relationship when the biological information measuring device according to the embodiment is worn on a wrist. FIG. 4 is an external view of the main body of the biological information measuring device according to the embodiment as seen from the bottom side. FIG. 5 is an external view of the main body housing of the biological information measuring device according to the embodiment with the cuff cover removed as seen from the bottom side. FIG. 6 is an external view of the cuff cover of the biological information measuring device according to the embodiment as seen from the bottom side. FIGS. 7A and 7B are perspective views of the cuff cover of the biological information measuring device according to the embodiment as seen from the inner side. FIG. 8 is a block diagram showing the functional configuration of a biological information measuring system including the biological information measuring device according to the embodiment and a charger. FIGS. 9A and 9B are a side view and an external perspective view of the charger according to the embodiment. FIG. 10(A) is an external perspective view showing the state of the charger according to the embodiment before the vital information measuring device is connected, and FIG. 10(B) is an external perspective view showing the state of the charger according to the embodiment after the vital information measuring device is connected.

[0028] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

[0029] Example 1 An example of an embodiment of the present invention will be described below. However, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described in this example are not intended to limit the scope of the present invention to those only.

[0030] (Device Configuration) Fig. 1 is an external perspective view showing the outline of the configuration of a biological information measurement device 1 according to this embodiment. Fig. 2 is a side view showing the outline of the configuration of the biological information measurement device 1 according to this embodiment. As shown in Figs. 1 and 2, the biological information measurement device 1 is generally a wristwatch-type wearable device having a main body 10 and a belt 20, and can measure biological information such as pulse waves (pulse), blood pressure values, and electrocardiogram waveforms when worn on the wrist T of a person being measured. Fig. 3 shows the positional relationship between the wrist T and each component of the biological information measurement device 1 according to this embodiment when worn on the wrist.

[0031] As shown in FIGS. 1 and 2 , the main body 10 includes a main body housing 11 and a cuff cover 16 (described later). The main body housing 11 is provided with a display 12 (e.g., an organic EL display), operation buttons 131 and 132, a lug 14, and a sensor housing 15 for housing various sensors (described later). In this embodiment, the side on which the display 12 is formed is referred to as the front surface of the main body housing 11, and the side on which the sensor housing 15 is formed is referred to as the bottom surface 11a of the main body housing 11. In this embodiment, the operation buttons 131 and 132 are made of conductors and also function as electrodes for measuring electrocardiogram waveforms. The bottom surface 11a of the main body housing 11, a resin cover covering the bottom surface 11a, and the cuff cover 16 form a bottom 13 of the main body 10. The display 12 corresponds to the surface portion and display portion of the present invention.

[0032] Fig. 4 shows an external view of main body 10 as viewed from the bottom 13 side. As shown in Fig. 4, bottom 13 of main body 10 has a central region covered with a translucent resin cover and an area corresponding to the central region covered with cuff cover 16. Sensor housing 15 is located in the central region of main body housing 11 in a plan view, is covered with a translucent resin cover at bottom 13, and is formed so as to protrude toward wrist T beyond cuff cover 16 when worn, as shown in Figs. 2 and 3 .

[0033] Furthermore, a first electrode 133 and a second electrode 134 are provided in the sensor housing 15 on the bottom surface 11a of the main body housing 11 so that their surfaces that come into contact with the human body are exposed. Either the first electrode 133 or the second electrode 134 functions as a GND electrode during electrocardiogram waveform measurement. When measuring an electrocardiogram waveform, the bioinformation measuring device 1 is worn, the contact surfaces of the first electrode 133 and the second electrode 134 are brought into contact with the skin surface of the area where the bioinformation measuring device 1 is worn, and the operation buttons 131 and 132 are touched with the fingers of the hand not wearing the bioinformation measuring device 1, thereby enabling electrocardiogram waveform measurement using lead I. The first electrode 133 and the second electrode 134 correspond to electrodes in the present invention.

[0034] The first LED 111, the second LED 113, the first photodiode (PD) 112, and the second PD 121 are visible through the resin cover from the bottom 13 side of the main body 10. In this embodiment, the first LED 111 emits green light, and the second LED 113 emits red and / or infrared light in addition to green light.

[0035] As described above, on the bottom 13 side of the main body 10, the sensor housing 15 is exposed from a rectangular opening 161 formed in the center of the cuff cover 16. A charging terminal covering portion 162 is provided on the cuff cover 16 adjacent to the longitudinal end 151 of the sensor housing 15. The charging terminal covering portion 162 is formed from an edge 161a of the opening 161 adjacent to the longitudinal end 151 of the sensor housing 15 to a lateral end 163 of the cuff cover 16. The charging terminal covering portion 162 has three charging pin press-fit holes 164a to 164c formed along the longitudinal direction of the main body casing 11. The charging pin press-fit holes 164a to 164c are openable holes for press-fitting charging pins 240a to 240c provided on the charger 2, which will be described later. The cuff cover 16 corresponds to the bottom cover of the present invention. The charging pin press-fit holes 164a to 164c correspond to the insertion portion of the present invention. The charging pins 240a to 240c correspond to the charger side terminals of the present invention.

[0036] FIG. 5 shows an external view of the main body housing 11 with the cuff cover 16 removed, as viewed from the bottom surface 11a. As shown in FIG. 5, charging terminals 191a-191c are arranged along the longitudinal direction on the bottom surface 11a of the main body housing 11 facing the charging terminal cover 162, outside the longitudinal end 151 of the sensor housing 15. Three charging pin press-fit holes 164a-164c in the charging terminal cover 162 are opened at positions corresponding to the charging terminals 191a-191c in the thickness direction of the main body 10. A space 165 is provided between the charging terminal cover 162 and the charging terminals 191a-191c to allow deformation of the charging terminal cover 162 toward the charging terminals 191a-191c. In this way, the charging terminals 191a-191c are separated from the first electrode 133 and the second electrode 134 by the charging terminal cover 162. With this configuration, there is no need to increase the distance between the first electrode 133, the second electrode 134 and the charging terminals 191a to 191c, so the withstand voltage between the first electrode 133, the second electrode 134 and the charging terminals 191a to 191c can be increased without increasing the size of the bioinformation measuring device 1.

[0037] By pressing charging pins 240a-240c against charging pin press-fit holes 164a-164c, charging terminal covering portion 162 elastically deforms and recesses toward charging terminals 191a-191c, and charging pin press-fit holes 164a-164c are pushed open, so that charging pins 240a-240c are press-fitted into charging pin press-fit holes 164a-164c. When charging pins 240a-240c are further press-fitted into charging pin press-fit holes 164a-164c, the ends of charging pins 240a-240c abut against charging terminals 191a-191c, electrically connecting charging pins 240a-240c and charging terminals 191a-191c. As described below, charging pins 240a-240c are provided on charger 2 with spring elasticity, ensuring reliable electrical connection by pressing charging pins 240a-240c against charging terminals 191a-191c. Charging pin press-fit holes 164a-164c are formed so that a user cannot contact charging terminals 191a-191c through charging pin press-fit holes 164a-164c simply by touching charging terminal covering portion 162 from the bottom 13 side. Cuff cover 16 can be manufactured, for example, by two-color molding, in which charging terminal covering portion 162 is formed from a non-conductive (insulating) and elastic elastomer material, and the rest of cuff cover 162 is formed from a hard resin. The rest of cuff cover 162 may also be formed from a non-conductive (insulating) and elastic material. Furthermore, the entire cuff cover 16, including the charging terminal covering portion 162, may be formed from an elastomer material. The main body housing 11 and the bottom surface 11a correspond to the main body and the bottom, respectively, of the present invention. The charging terminals 191a to 191c correspond to the charging terminals of the present invention. The charging terminal covering portion 162 corresponds to the insulating member of the present invention. The space 165 corresponds to the space of the present invention. Such a charger 2 allows the biological information measuring device 1 to be charged simply and reliably. Furthermore, such a biological information measuring device 1 and charger 2 can constitute a biological information measuring system 3 including the biological information measuring device 1 that can increase the withstand voltage between the first electrode 133, the second electrode 134, and the charging terminals 191a to 191c without increasing the size, and the charger 2 that can simply and reliably charge the biological information measuring device 1.

[0038] The belt unit 20 includes a belt 21 and a hook-and-loop fastener 25 for fastening the biological information measurement device 1 to the wrist T, a first pressure cuff 22 and a second pressure cuff 23 for compressing an artery in the wrist T, and a sensing cuff 24 for detecting a pressure pulse wave. As shown in Fig. 5 , a first connection portion 22a and a second connection portion 24a connecting the main body housing 11 to the first pressure cuff 22 and the sensing cuff 24, respectively, and a third connection portion 23a connecting the main body housing 11 to the second pressure cuff 23 are provided in an area of ​​the bottom surface 11a of the main body housing 11 where the sensor housing 15 is not provided in a plan view. The first connection portion 22a, the second connection portion 24a, and the third connection portion 23a are covered by a cuff cover 16. The cuff cover 16 protects the first connection portion 22a, the second connection portion 24a, and the third connection portion 23a, and also functions to secure each of the cuffs 22, 23, and 24 to the main body housing 11. The first pressure cuff 22 is provided on one side of the main body 10 in the circumferential direction, and the second pressure cuff 23 is provided on the other side of the main body 10 in the circumferential direction. The first pressure cuff 22, the second pressure cuff 23, and the sensing cuff 24 correspond to the cuffs of the present invention. The first connection portion 22a, the second connection portion 24a, and the third connection portion 23a correspond to at least a part of the cuff of the present invention. The wrist T corresponds to the arm of the present invention.

[0039] The main body housing 11 accommodates a rechargeable battery 191, a control board (not shown), a piezoelectric pump 141, a valve 142, a pressure sensor 143, a flow path plate 144, and the like.

[0040] (Functional Configuration of Biological Information Measurement Device and Charger) Next, the functional configuration of the biological information measurement system 3 including the biological information measurement device 1 and the charger 2 will be described. FIG. 8 is a block diagram showing the functional configuration of the biological information measurement device 1 and the charger 2. As shown in FIG. 8, the biological information measurement device 1 according to this embodiment has functional units, including a pulse wave measurement unit 110, a blood oxygen saturation (SpO2) measurement unit 120, an electrocardiogram waveform measurement unit 130, a blood pressure measurement unit 140, a display unit 150, an operation unit 160, a communication unit 170, a storage unit 180, and a power supply unit 190. These functional units are realized by a processor such as a CPU provided in the main body unit 10 reading and executing programs from a memory such as a RAM, thereby controlling the components of the biological information measurement device 1. The charger 2 also has charging pins 240a to 240c (described later) and a power supply unit 200 that supplies power via the charging pins 240a to 240c. The power supply unit 200 includes, for example, an AC / DC converter. The power supply unit 200 may further be connected to a commercial power system and may receive AC power from the commercial power system. The charger 2 corresponds to the charger of the present invention.

[0041] The pulse wave measurement unit 110 includes a first LED 111, a second LED 113, and a first PD 112, and measures the pulse wave and calculates the pulse rate using a so-called photoplethysmography method. Specifically, the first LED 111 and the second LED 113 emit green light, and the first PD 112 receives the light reflected from within the living body, thereby detecting the blood flow rate (change in blood vessel volume) that changes with the heartbeat and measuring the pulse wave. The pulse wave is an example of biological information, and the pulse wave measurement unit 110 is an example of biological information measurement means.

[0042] The SpO2 measurement unit 120 includes a second LED 113 and a second PD 121, and measures blood oxygen saturation from the intensity of the reflected light by receiving red light or infrared light irradiated from the second LED 113 and reflected by the second PD 121. Blood oxygen saturation is an example of biological information, and the SpO2 measurement unit 120 is an example of biological information measurement means.

[0043] The electrocardiogram waveform measurement unit 130 is configured to include operation buttons 131 and 132, a first electrode 133 and a second electrode 134 provided on the bottom 13 of the main body 10, and an electrocardiogram waveform measurement circuit (not shown), and measures the electrocardiogram waveform using a so-called I-lead method. Specifically, the electrocardiogram waveform is measured based on the potential difference between the first electrode 133 and the second electrode 134 that contact the wrist T of one arm when the device is worn, and the fingers of the other hand that touch the operation button 131 or 132, which function as electrodes. The electrocardiogram waveform is an example of biological information, and the electrocardiogram waveform measurement unit 130 corresponds to the electrocardiogram measurement means of the present invention.

[0044] The blood pressure measurement unit 140 includes a piezoelectric pump 141, a valve 142, a pressure sensor 143, a flow path plate 144, and the above-mentioned first pressure cuff 22, second pressure cuff 23, and sensing cuff 24, and measures blood pressure using the so-called oscillometric method. The flow path plate 144 is a conductive member (metal), and has flow paths formed therein that send gas from the piezoelectric pump 141 to each of the cuffs 22, 23, and 24. Blood pressure measurement using the oscillometric method is a well-known technique, so a detailed description will be omitted. Blood pressure is an example of biological information, and the blood pressure measurement unit 140 corresponds to the blood pressure measurement means of the present invention.

[0045] The display unit 150 includes a display 12 and displays various information such as measurement results of biological information and menu screens. The operation unit 160 includes operation buttons 131 and 132 and accepts input operations from the user via these. The communication unit 170 includes an antenna (not shown) for wireless communication and performs information communication with other electronic devices such as information processing terminals via, for example, BLE communication. Note that a terminal for wired communication may also be provided.

[0046] The storage unit 180 includes a main storage device (not shown) such as a RAM (Random Access Memory), and stores various types of information such as application programs, measured biological information, etc. In addition to the RAM, the storage unit 180 may also include a long-term storage medium such as a flash memory.

[0047] The power supply unit 190 includes charging terminals 191a to 191c, a charging unit 192, and a rechargeable battery 193, and functions as a power supply source for each component of the biological information measurement device 1. The charging unit 192 is a circuit that rectifies the power input from the charging terminals 191a to 191c and converts it into a predetermined current and / or voltage for charging the rechargeable battery 193. The rechargeable battery 193 can be a general-purpose secondary battery such as a lithium-ion battery, and can be repeatedly charged by receiving a supply of power via the charging terminals 191a to 191c.

[0048] (Configuration of Charger) The charger 2 according to this embodiment will be described below. Fig. 9(A) is a side view of the charger 2, and Fig. 9(B) is a perspective view of the charger 2. Fig. 10(A) is a perspective view of the charger 2 in a state in which the vital information measuring device 1 is about to be connected, and Fig. 10(B) is a perspective view of the charger 2 with the vital information measuring device 1 connected.

[0049] The charger 2 is a clip-like structure in which a positioning unit 210, which is roughly T-shaped in plan view, is attached to a base 220, on which charging pins 240a to 240c are provided, so that the positioning unit 210 can rotate about a shaft 230. The positioning unit 210 and base 220 are formed from a resin such as polycarbonate or ABS, and the charging pins 240a to 240c are formed from a conductive material. The positioning unit 210, base 220, and shaft 230 correspond to the surface support unit, bottom support unit, and connection unit, respectively, of the present invention.

[0050] The positioning portion 210 is made up of a support portion 211 supported by the shaft portion 230, and a holding portion 212 extending from an end of the support portion 211 in parallel to the shaft portion 230. The holding portion 212 has a generally rectangular box shape with an end opposite the support portion 211 and a portion facing the base portion 220 being open. The holding portion 212 is made up of an upper wall portion 213 in the form of a generally rectangular plate that faces the base portion 220 and extends parallel to the shaft portion 230, side wall portions 214 and 215 in the form of generally rectangular plates that extend from the longitudinal end of the upper wall portion 213 toward the base portion 220, and a rear wall portion 216 in the form of a generally rectangular plate that extends from the end of the upper wall portion 213 on the support portion 211 side toward the base portion 220 and is perpendicular to the side wall portions 214 and 215. An opening 217 is formed at the end of each of the upper wall portion 213, the side wall portion 214, and the side wall portion 215 opposite the support portion 211. The side wall portion 214, the side wall portion 215, and the inner wall portion 216 correspond to the side wall portion of the present invention. The upper wall portion 213 corresponds to the bottom wall portion of the present invention.

[0051] The base 220 is made up of a shaft support portion 221 that supports the shaft portion 230, and a connection portion 222 that has a surface corresponding to the positioning portion 210. Charging pins 240a to 240c are erected toward the upper wall portion 213 on a support surface 223 of the connection portion 222 that faces the positioning portion 210. The connection portion 222 is provided with a support surface 224 that connects to the support surface 223 via a step. When the charging pins 240a to 240c are press-fitted to a predetermined position in the main body 10 of the biological information measuring device 1, the sensor housing portion 15 is housed on the support surface 224 via the step.

[0052] 10A , when the support portion 211 of the positioning unit 210 is pressed toward the base portion 220, the holding portion 212 opens relative to the connection portion 222, i.e., the holding portion 212 moves away from the connection portion 222. On the connection portion 222 side of the holding portion 212, a space 218 is formed that is surrounded by an upper inner wall portion 213a, a lateral inner wall portion 214a, a lateral inner wall portion 215a, and a rear inner wall portion 216a and that opens through an opening 217. The positioning unit 210 is sized so that the housing side surface 11e opposite to the housing side surface 11b on which the operation buttons 131 and 132 of the main body housing 11 of the vital information measuring device 1 are arranged abuts against the rear inner wall portion 216a, and portions of the housing side surfaces 11c and 11d on the housing side surface 11e side, which are sandwiched between the housing side surface 11e, abut against the lateral inner wall portion 214a and the lateral inner wall portion 215a, respectively. In addition, with the housing side surface 11e abutting against the rear inner wall portion 216a and portions of the housing sides 11c and 11d sandwiching the housing side surface 11e on the housing side surface 11e side abutting against the lateral inner wall portion 214a and the lateral inner wall portion 215a, respectively, the upper wall portion 213 of the holding portion 212 is formed to be large enough to cover approximately half of the short side of the display 12.

[0053] 10A, the main body housing 11 of the vital information measuring device 1 is held by the holding portion 212 of the charger 2 in a state in which the holding portion 212 is open relative to the connection portion 222. Specifically, the main body housing 11 is held by the holding portion 212 so that the housing side surface 11e abuts against the rear inner wall portion 216a, and portions of the housing sides 11c and 11d, which sandwich the housing side surface 11e, on the housing side surface 11e side abut against the horizontal inner wall portion 214a and the horizontal inner wall portion 215a, respectively. By holding the main body housing 11 by the holding portion 212 in this manner, the main body 10 of the vital information measuring device 1 is positioned relative to the charger 2. That is, by holding the main body housing 11 by the holding portion 212, the charging pins 240a to 240c are positioned relative to the charging pin press-fit holes 164a to 164c and the charging terminals 191a to 191c, respectively. Therefore, with main body housing 11 held by holding portion 212, closing holding portion 212 of charger 2 against connecting portion 222 causes charging pins 240a-240c to deform charging terminal covering portion 162 so as to be recessed toward charging terminals 191a-191c, and are press-fitted into charging pin press-fit holes 164a-164c, respectively. Furthermore, closing holding portion 212 against connecting portion 222 causes charging pins 240a-240c to abut against charging terminals 191a-191c, respectively. Because charging pins 240a to 240c are configured as spring pins that can expand and contract in the direction of connection with charging terminals 191a to 191c, charging pins 240a to 240c come into contact with charging terminals 191a to 191c, respectively, and then by closing holding portion 212 relative to connection portion 222, charging pins 240a to 240c are pressed against charging terminals 191a to 191c, respectively, thereby ensuring a reliable electrical connection between charger 2 and vital information measurement device 1. Housing side surfaces 11c to 11e correspond to side surfaces in the present invention. Housing side surfaces 11c and 11d correspond to side surfaces on both sides of the main body in the present invention, and housing side surface 11e corresponds to one side surface perpendicular to both sides of the main body in the present invention.

[0054] Furthermore, when charging the rechargeable battery 193 with the holding portion 212 closed to a predetermined position relative to the connecting portion 222 and the charging pins 240a to 240c connected to the charging terminals 191a to 191c, approximately half of the display 12 is exposed and not covered by the upper wall portion 213. Therefore, the progress of charging and the like can be displayed on the area of ​​the display 12 exposed from the holding portion 212. The user may be notified that charging is complete by displaying a message in the exposed area of ​​the display 12 that charging is complete.

[0055] In the charger 2, the vital information measuring device 1 is held in the positioning unit 210 so that approximately half of the housing side surface 11b, on which the operation buttons 131 and 132 of the main body housing 11 of the vital information measuring device 1 are arranged, is exposed from the opening 217 of the positioning unit 210, thereby properly connecting the charging pins 240a to 240c and the charging terminals 191a to 191c. This prevents the vital information measuring device 1 from being held in the wrong orientation relative to the charger 2, which could result in damage to the charging pins 240a to 240c and the vital information measuring device 1.

[0056] REFERENCE SIGNS LIST 1... Biological information measuring device 2... Charger 11... Main body housing 11a... Bottom surface 10... Main body section 130... Electrocardiogram waveform measuring section 133... First electrode 134... Second electrode 162... Charging terminal covering section 191a to 191c... Charging terminals T... Wrist

Claims

1. A biological information measuring device comprising: an electrocardiogram measuring means including electrodes for measuring the electrocardiogram waveform of a subject; a main body including a bottom portion positioned on the side that contacts the subject's arm when worn; a charging terminal into which power for charging is input; and an insulating member that separates the charging terminal and the electrodes.

2. The biological information measuring device according to claim 1, wherein the insulating member covers the arm side of the charging terminal provided on the bottom.

3. The bioinformation measuring device according to claim 2, further comprising a bottom cover disposed on the bottom and covering areas other than the electrodes, wherein the insulating member constitutes at least a part of the bottom cover.

4. A biological information measuring device according to claim 2 or 3, characterized in that the insulating member has an openable and closable insertion portion into which a charger side terminal electrically connected to the charging terminal is inserted.

5. The biometric information measuring device of claim 4, characterized in that the insulating member is elastic and has a space between the charging terminal and the insulating member covering the arm side of the charging terminal that allows the insulating member to deform toward the charging terminal when the charger side terminal is inserted.

6. A biological information measuring device according to claim 3, further comprising a blood pressure measuring means including a cuff for measuring the blood pressure of the subject, and wherein the bottom cover covers at least a portion of the cuff.

7. A biological information measurement system including a biological information measurement device that measures biological information and a charger for charging the biological information measurement device, the biological information measurement system comprising: electrocardiogram measuring means including electrodes for measuring the electrocardiogram waveform of a person being measured; a main body including a bottom portion located on the side that contacts the arm of the person being measured when the device is worn and a surface portion located on the opposite side to the bottom portion; a charging terminal located on the bottom portion and into which power for charging is input; an insulating member that covers the arm side of the charging terminal and has an openable / closable insertion portion into which a charger side terminal electrically connected to the charging terminal is inserted; a bottom support portion on which the charger side terminal is provided; a surface support portion that supports the surface portion of the biological information measurement device, with the charger side terminal electrically connected to the charging terminal, and positions the main body of the biological information measurement device with respect to the charger side terminal; and a connection portion that openably and closably connects the surface support portion and the bottom support portion. a charger that electrically connects the charging terminal and the charger-side terminal by closing the surface support part that supports the surface part of the vital information measuring device against the bottom support part.

8. The bioinformation measuring system of claim 7, characterized in that the surface portion has a display portion capable of displaying information, the main body portion has a side portion between the surface portion and the bottom portion, and the surface support portion has side wall portions that contact the side portions, including both sides that sandwich the main body portion and one of the sides perpendicular to the both sides, and a bottom wall portion that covers at least a portion of the display portion.

9. A vital sign measuring system as described in claim 7 or 8, characterized in that the charger side terminal is provided on the bottom support part so as to be spring-flexible in the direction of connection with the charging terminal.

10. A charger used to charge a vital information measuring device comprising: an electrocardiogram measuring means including electrodes for measuring the electrocardiogram waveform of the subject; a main body including a bottom portion that is positioned on the side that comes into contact with the subject's arm when the device is worn and a surface portion that is positioned opposite the bottom portion; a charging terminal that is positioned on the bottom portion and to which power for charging is input; an insulating member that covers the arm side of the charging terminal and has an openable / closable insertion portion into which a charger side terminal that is electrically connected to the charging terminal is inserted; and the charger comprises: a bottom support portion on which the charger side terminal is provided; a surface support portion that supports the surface portion of the vital information measuring device, the charger side terminal of which is electrically connected to the charging terminal, and that positions the main body of the vital information measuring device with respect to the charger side terminal; and a connection portion that openably and closedly connects the surface support portion and the bottom support portion, wherein the charging terminal and the charger side terminal are electrically connected by closing the surface support portion that supports the surface portion of the vital information measuring device against the bottom support portion.

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