JP2018191749A - Biological information measuring device - Google Patents

Abstract

To provide a biological information measuring device capable of easily attaching a part for inputting biological information from a bioelectrode to a part including the bioelectrode in contact with a living body.SOLUTION: A biological information measuring device includes an electrode part 100 including bioelectrodes E101 and E102, and an attachment part 200 removably attached to the electrode part 100. The electrode part 100 includes first terminals T101 and T102 connected to the bioelectrodes E101 and E102, and first magnetic members M101-M104. The attachment part 200 includes second terminals T201 and T202, and second magnetic members M201-M204 for inputting biological information. When the position of the attachment part 200 with respect to the electrode part 100 is arranged so as to conduct the first terminals 101 and 102 to the second terminals 201 and 202, the attachment part 200 and the electrode part 100 are attracted to each other by the magnetic force between the first magnetic members M101-M104, and the second magnetic members M201-M204.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a biological information measuring device that measures biological information.

  A device for measuring information related to the activity state of a living body is indispensable in the medical field, and in recent years, personal devices for the purpose of health management and the like are also widely used. For example, the biological information measuring device described in the following patent document includes a portable information terminal that wirelessly receives biological information from a specimen adhesive sheet containing a biosensor and an RFID, and an RFID of the specimen adhesive sheet attached to the skin. With.

JP 2006-58263 A

  In the device of the above-mentioned patent document, biological information is transmitted wirelessly from the specimen adhesive sheet to the portable information terminal. For example, in an apparatus that handles minute electrical signals such as an electrocardiograph, A configuration in which a measurement apparatus is electrically connected is common. When an electrode pad or the like is repeatedly used, maintenance such as moistening the surface to be attached to a living body is necessary in order to maintain the adhesive performance. During this maintenance, the measuring device is usually removed from the electrode pad or the like. Therefore, each time measurement is performed, the measurement device is repeatedly attached to and detached from the electrode pad or the like. Snap fasteners are generally used for electrical connection between electrode pads and measuring devices, but snap fasteners must be aligned and pushed during installation, which makes installation work cumbersome. There are disadvantages.

  The present invention has been made in view of such circumstances, and an object thereof is a living body in which a portion for inputting biological information from a living body electrode can be easily attached to a portion including a living body electrode in contact with a living body. It is to provide an information measuring device.

  One aspect of the present invention relates to a biological information measuring device that measures biological information obtained through a biological electrode in contact with a biological body. This biological information measuring device includes an electrode part including the biological electrode and an attachment part that is detachably attached to the electrode part. The electrode part includes a first terminal connected to the biological electrode and a first magnetic member. The attachment portion includes a second terminal for inputting the biological information and a second magnetic member. In the case where at least one of the first magnetic member and the second magnetic member is a magnet, and the arrangement of the attachment portion with respect to the electrode portion is an arrangement for electrically connecting the first terminal and the second terminal, the first The attachment portion and the electrode portion are attracted by the magnetic force between the first magnetic member and the second magnetic member.

  In the biological information measuring device, when the attachment portion is disposed with respect to the electrode portion, the first terminal and the second magnetic member are disposed between the first magnetic member and the second magnetic member. The attachment portion and the electrode portion are attracted by the magnetic force, whereby the attachment portion is attached to the electrode portion. Unlike the snap fastener, it is not necessary to align and push in, so that the attachment portion can be easily attached to the electrode portion.

  Preferably, the electrode unit may include a plurality of the biological electrodes, a plurality of the first terminals corresponding to the plurality of biological electrodes on a one-to-one basis, and a plurality of the first magnetic members. The attachment portion may include a plurality of the second terminals and a plurality of the second magnetic members. Two or more first magnetic members and two or more second magnetic members in the case where the arrangement of the attachment portion with respect to the electrode portion is an arrangement for conducting the plurality of first terminals and the plurality of second terminals. May be conducted as a conductor. When the two or more first magnetic members and the two or more second magnetic members are electrically connected, at least a part of the two or more second magnetic members and at least a part of the two or more second magnetic members are A wiring for forming a series circuit connected in series may be provided on at least one of the electrode part and the attachment part.

  According to this configuration, in the case where the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are electrically connected, at least one of the two or more second magnetic members. And at least a part of the two or more second magnetic members are connected in series, and a series circuit is formed by this series connection. When the plurality of first terminals and the plurality of second terminals are not conductive, the series circuit is not conductive. Therefore, based on the conduction state of the series circuit, it can be detected that the plurality of first terminals and the plurality of second terminals are not in conduction.

  Preferably, in this case, both ends of the series circuit may be the second magnetic member, and the attachment portion includes a conduction determining unit that determines a conduction state of the second magnetic member at both ends in the series circuit. Good.

  According to this configuration, it is possible to detect that the plurality of first terminals and the plurality of second terminals are in a non-conductive state based on a determination result of the continuity determination unit included in the attachment portion. Become.

  Preferably, the electrode unit may include a plurality of the biological electrodes, a plurality of the first terminals corresponding to the plurality of biological electrodes on a one-to-one basis, and a plurality of the first magnetic members. The attachment portion may include a plurality of the second terminals corresponding to the plurality of first terminals on a one-to-one basis, and a plurality of the second magnetic members. In the case where the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are conducted in a one-to-one correspondence relationship, at least one of the plurality of first magnetic members. The attachment part and the electrode part may be attracted by a magnetic force between the part and at least a part of the plurality of second magnetic members. When the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are conducted in a correspondence relationship different from the one-to-one correspondence relationship, the plurality of first magnetic properties. The attachment portion and the electrode portion may be retracted by a magnetic force between at least a part of the member and at least a part of the plurality of second magnetic members.

  According to this configuration, in the case where the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are conducted in a correspondence relationship different from the one-to-one correspondence relationship. The mounting portion and the electrode portion are retracted by a magnetic force between at least a portion of the plurality of first magnetic members and at least a portion of the plurality of second magnetic members. Can not be attached to. Thereby, it is avoided that the plurality of first terminals and the plurality of second terminals conduct in a correspondence relationship different from the one-to-one correspondence relationship.

  Preferably, the electrode unit may include a plurality of the biological electrodes and a plurality of the first terminals corresponding to the plurality of biological electrodes on a one-to-one basis. The attachment portion may include a plurality of the second terminals. Each of the plurality of first terminals may be different from the other first terminals in the distance from the first center position on the surface of the electrode portion. Each of the plurality of second terminals may be different from the other second terminals in the distance from the second center position on the surface of the attachment portion. When the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are electrically connected, the magnetic force between the first magnetic member and the second magnetic member is used. The attachment portion and the electrode portion may attract each other, and the first center position and the second center position may overlap when viewed from a direction perpendicular to the surface of the electrode portion.

  According to this configuration, each of the plurality of first terminals is different in distance from the first center position on the surface of the electrode part from the other first terminals, and the plurality of second terminals Each is different from the other second terminals in the distance from the second center position on the surface of the mounting portion. Therefore, when the attachment portion is attached to the electrode portion in a state where the first center position and the second center position overlap each other when viewed from a direction perpendicular to the surface of the electrode portion, the plurality of first portions Each of the terminals can be electrically connected to one second terminal having the same distance from the first center position, and is not electrically connected to the other second terminal.

  Preferably, the first magnetic member may have a rotationally symmetric shape centered on the first center position when viewed from a direction perpendicular to the surface of the electrode portion. The second magnetic member may have a rotationally symmetric shape centered on the second center position when viewed from a direction perpendicular to the surface of the mounting portion.

  According to this configuration, since both the first magnetic member and the second magnetic member have a rotationally symmetric shape, the first center position and the first magnetic member can be seen from a direction perpendicular to the surface of the electrode portion. The attachment portion is easily attached to the electrode portion in a state where the two center positions overlap.

  Preferably, the first terminal may have a rotationally symmetric shape centered on the first center position when viewed from a direction perpendicular to the surface of the electrode portion. Alternatively, the second terminal may have a rotationally symmetric shape centered on the second center position when viewed from a direction perpendicular to the surface of the mounting portion.

  According to this configuration, when the attachment portion is attached to the electrode portion in a state where the first center position and the second center position overlap with each other when viewed from a direction perpendicular to the surface of the electrode portion. The plurality of first terminals and the plurality of second terminals are easily conducted.

  ADVANTAGE OF THE INVENTION According to this invention, the part which inputs biometric information from a biological electrode can be easily attached with respect to the part containing the biological electrode which contacted the biological body.

1A to 1C are diagrams illustrating an example of a biological information measurement device according to the first embodiment. FIG. 1A shows a state before the attachment portion is attached to the electrode portion, and FIG. 1B shows a state after the attachment portion is attached to the electrode portion. FIG. 1C shows the electrode portion viewed from the adhesive surface side. FIG. 2 is a diagram illustrating an example of an electrical configuration of the biological information measuring apparatus according to the first embodiment. 3A and 3B are diagrams illustrating an example of a biological information measuring apparatus according to the second embodiment. FIG. 3A shows a state before the attachment portion is attached to the electrode portion. FIG. 3B shows a series circuit formed by connecting a plurality of first magnetic members and a plurality of second magnetic members in series. 4A and 4B are diagrams illustrating an example of a biological information measuring apparatus according to the third embodiment. FIG. 4A shows an arrangement when the attachment portion and the electrode portion are attracted, and FIG. 4B shows an arrangement when the attachment portion and the electrode portion are retracted. FIG. 5A to FIG. 5C are diagrams illustrating an example of a biological information measuring apparatus according to the fourth embodiment. FIG. 5A shows a state before the attachment portion is attached to the electrode portion. FIG. 5B shows the second terminal of the mounting portion and the second magnetic member, and FIG. 5C shows the first terminal of the electrode portion and the first magnetic member. 6A and 6B are diagrams illustrating an example of the second terminal. 6A is a perspective view of the second terminal, and FIG. 6B is a plan view of the second terminal. FIG. 7A to FIG. 7E are diagrams illustrating an example of a biological information measuring apparatus according to the fifth embodiment. FIG. 7A shows a state before the attachment portion is attached to the electrode portion. FIG. 7B is a perspective view of the second terminal, and FIG. 7C is a diagram showing a structure on the back side of the second terminal facing the main body case. FIG. 7D is a perspective view of the first terminal, and FIG. 7E is a diagram showing a structure on the back side of the first terminal facing the sheet member.

<First Embodiment>
Hereinafter, the biological information measuring apparatus according to the first embodiment will be described with reference to the drawings. 1A to 1C are diagrams illustrating an example of a biological information measurement device according to the first embodiment. The biological information measuring device according to the present embodiment is a device that measures biological information obtained through a biological electrode in contact with a living body, and is, for example, a device (electrocardiograph) that measures an electrical signal associated with heart activity. .

  In the example of FIGS. 1A to 1C, the biological information measuring apparatus includes an electrode unit 100 including biological electrodes E101 and E102, and an attachment unit 200 that is detachably attached to the electrode unit 100. The electrode unit 100 includes a sheet member 101, first terminals T101 and T102, and first magnetic members M101 to M104. The attachment portion 200 includes a main body case 201, second terminals T201 and T202, and second magnetic members M201 to M204. 1A and 1B show states before and after the attachment portion 200 is attached to the electrode portion 100, respectively. FIG. 1C shows the electrode unit 100 viewed from the adhesive surface 103 side of the sheet member 101.

  As shown in FIG. 1C, the sheet member 101 has circular regions that are substantially congruent at both ends, and a belt-like region in the middle of the circular regions at both ends. The sheet member 101 is formed of a flexible material such as polyethylene foam. One surface of the sheet member 101 is an adhesive surface 103 to be attached to the skin, and biological electrodes E101 and E102 are provided on the adhesive surface 103. In the example of FIG. 1C, the biomedical electrodes E101 and E102 have a substantially congruent circular shape, and are disposed in circular regions at both ends of the sheet member 101, respectively.

  As shown in FIG. 1A, two first terminals (T101, T102) and four first magnetic members (M101 to M104) are arranged on the surface 102 of the sheet member 101 opposite to the adhesive surface 103. The first terminal T101 is connected to the biological electrode E101, and the first terminal T102 is connected to the biological electrode E102. The two biological electrodes (E101, E102) and the two first terminals (T101, T102) have a one-to-one correspondence, and the corresponding electrodes and terminals are electrically connected. The first terminals T101 and T102 are, for example, sheet-like conductor electrodes, and have a circular flat surface in the example of FIG. 1A.

  The first magnetic members M101 to M104 are soft magnetic bodies such as iron, and have a rectangular plate shape in the example of FIG. 1A. The first magnetic members M101 to M104 may be disposed so as to be exposed on the surface 102 of the sheet member 101 as shown in FIG. 1A, or may be embedded in the sheet member 101. The first magnetic members M101, M102, M103, and M104 are arranged on the surface 102 in a pattern corresponding to four vertices of a rectangle, and are arranged counterclockwise in this order. The interval between the first magnetic members M101 and M102 is equal to the interval between the first magnetic members M103 and M104, and is longer than the interval between the first magnetic members M102 and M103. The interval between the first magnetic members M104 and M101 is equal to the interval between the first magnetic members M102 and M103. As shown in FIG. 1A, the first magnetic members M <b> 101 to M <b> 104 are arranged in a belt-like region in the middle of the sheet member 101. The first terminal T101 is disposed between the first magnetic members M104 and M101, and the first terminal T102 is disposed between the first magnetic members M102 and M103.

  In the example of FIG. 1A, the main body case 201 has a rectangular parallelepiped shape, and two second terminals (T201, T202) and four second magnetic members (M201 to M204) are arranged on one surface 202 thereof. When the attachment part 200 is attached to the electrode part 100 as shown in FIG. 1B, the second terminals T201 and T202 are electrically connected to the first terminals T101 and T102. The second terminals T201 and T202 include pins (such as pogo pins) protruding from the surface 202 so as to be surely in contact with the second terminals T201 and T202 which are sheet-like electrodes.

  In the present embodiment, the two first terminals (T101, T102) and the two second terminals (T201, T202) can be conducted in any combination. That is, the first terminal T101 and the second terminal T201 are electrically connected and the first terminal T102 and the second terminal T202 are electrically connected, and the first terminal T101 and the second terminal T202 are electrically connected, and the first terminal T102 and the second terminal T202 are electrically connected. Combinations in which the second terminal T201 is conductive are allowed.

  The second magnetic members M201 to M204 are magnets (neodymium magnets, ferrite magnets, etc.) for attracting the first magnetic members M101 to M104 by magnetic force, and have a rectangular plate shape in the example of FIG. 1A. The second magnetic members M201 to M204 may be disposed so as to be exposed on the surface 202 of the main body case 201 as shown in FIG. 1A, or may be embedded in the main body case 201. The second magnetic members M201, M202, M203, and M204 are arranged on the surface 102 in a pattern corresponding to the four vertices of the rectangle, and are arranged clockwise in this order. The arrangement pattern of the second magnetic members M201 to M204 on the surface 202 of the main body case 201 is substantially the same as the arrangement pattern of the first magnetic members M101 to M104 on the surface 102 of the sheet member 101. The interval between the second magnetic members M201 and M202 is equal to the interval between the second magnetic members M203 and M204, and is longer than the interval between the second magnetic members M202 and M203. The interval between the second magnetic members M204 and M201 is equal to the interval between the second magnetic members M202 and M203. As shown in FIG. 1A, the second terminal T201 is disposed between the second magnetic members M204 and M201, and the second terminal T202 is disposed between the second magnetic members M202 and M203.

  FIG. 2 is a diagram illustrating an example of an electrical configuration of the biological information measuring apparatus according to the first embodiment. In the example of FIG. 2, the attachment unit 200 includes an amplifier 211, a processing unit 212, and a communication unit 213. The amplifier 211 amplifies a minute living body electrical signal (an electrical signal including living body information related to living body activity) input from the second terminals T201 and T202 in a state where the mounting portion 200 is attached to the electrode portion 100.

  The processing unit 212 converts the electrical signal of the living body amplified by the amplifier 211 into waveform data of a digital value using an AD converter, and stores it in a built-in memory. The processing unit 212 includes, for example, a computer that executes processing according to an instruction code of a program stored in a memory, and a dedicated logic circuit. The processing unit 20 may execute all the processes in a computer based on a program, or may execute at least a part of the processes by a logic circuit.

  The communication unit 213 is a device that performs wireless communication with a host device (such as a controller device) (not shown). For example, a transceiver for performing wireless communication that conforms to a short-range wireless communication method such as Bluetooth (registered trademark). including. The processing unit 212 transmits the waveform data of the electrical signal acquired from the amplifier 211 to the higher-level device through the communication unit 213. In addition, the processing unit 212 performs measurement start / stop, measurement mode switching, and the like in accordance with commands received from the host device by the communication unit 213.

  When measuring biological information in the biological information measuring apparatus according to the present embodiment, the adhesive surface 103 of the sheet member 101 is affixed to the skin of the subject and two first terminals (T101, T102) and two The surface 202 of the attachment portion 200 is disposed toward the surface 102 of the electrode portion 100 so as to be electrically connected to the second terminals (T201, T202). Thereby, a magnetic force acts between the four first magnetic members (M101 to M104) of the electrode part 100 and the four second magnetic members (M201 to M204) of the attachment part 200, and the electrode part 100 and the attachment part 200. Attracts each other, and the attachment portion 200 is attached to the electrode portion 100. When the attachment part 200 is attached to the electrode part 100, the two first terminals (T101, T102) of the electrode part 100 and the two second terminals (T201, T202) of the attachment part 200 are connected. Biological electrical signals detected at the electrodes E101 and E102 are input to the amplifier 211. The biological electrical signal is amplified by the amplifier 211, converted into waveform data by the processing unit 212, and stored in the memory of the processing unit 212. This waveform data is wirelessly transmitted from the communication unit 213 to the host device in response to a request from a host device (not shown).

  As described above, according to the biological information measuring apparatus according to the present embodiment, the arrangement of the attachment part 200 with respect to the electrode part 100 makes the first terminal (T101, T102) and the second terminal (T201, T202) conductive. In the case of the arrangement, the attachment portion 200 and the electrode portion 100 are attracted by the magnetic force between the first magnetic member (M101 to M104) and the second magnetic member (M201 to M204). It is attached to the electrode unit 100. Therefore, unlike the snap fastener, it is not necessary to align and push in, so that the attachment portion 200 can be easily attached to the electrode portion 100.

  Moreover, since the attaching part 200 is attached to the electrode part 100 by magnetic force, when removing the attaching part 200 from the electrode part 100, a special operation (such as an operation for removing the claw) is not necessary, and the removing work is easily performed. be able to.

  In the biological information measuring device described above, as an example, the first magnetic members M101 to M104 are soft magnetic bodies, and the second magnetic members M201 to M204 are magnets, but this embodiment is limited to this example. Not. In another example of the present embodiment, at least a part of the first magnetic members M101 to M104 may be a magnet, and at least a part of the second magnetic members M201 to M204 may be a soft magnetic material. That is, at least one of the first magnetic member and the second magnetic member that are close to each other may be a magnet in a state where the first terminals (T101, T102) and the second terminals (T201, T202) are electrically connected.

  In the embodiment described above, as an example, the first terminal (T101, T102) of the electrode unit 100 includes a sheet-like conductor, and the second terminal (T201, T202) of the mounting unit 200 includes a pin. However, conversely, the second terminals (T201, T202) may include a sheet-like conductor, and the first terminals (T101, T102) may include a pin.

<Second Embodiment>
Next, a second embodiment of the present invention will be described. 3A and 3B are diagrams illustrating an example of a biological information measuring apparatus according to the second embodiment. The biological information measuring device shown in FIGS. 3A and 3B replaces the four second magnetic members (M201 to M204) in the biological information measuring device according to the first embodiment with eight second magnetic members (M211 to M218). In addition to adding wirings 231 to 233 for connecting these second magnetic members, a continuity determination unit 221 is added as a processing block of the processing unit 212, and the other configuration is related to the first embodiment. This is the same as the biological information measuring device. FIG. 3A shows a state before the attachment part 200 is attached to the electrode part 100. FIG. 3B shows a series circuit formed by connecting a plurality of first magnetic members (M101 to M104) and a plurality of second magnetic members (M211 to M218) in series.

  Each of the eight second magnetic members (M211 to M218) is a magnet having conductivity, for example, a magnet (neodymium magnet or the like) surface-treated with a conductor such as nickel plating. In the present embodiment, the four first magnetic members (M101 to M104) also have conductivity. For this reason, when the first magnetic member and the second magnetic member are brought into contact with each other, both are brought into conduction as a conductor.

  The eight second magnetic members (M211 to M218) are divided into four pairs (M211 and M212, M213 and M214, M215 and M216, M217 and M218). When the arrangement of the attachment portion 200 with respect to the electrode portion 100 is an arrangement in which the first terminals (T101, T102) and the second terminals (T201, T202) are electrically connected (hereinafter referred to as “normal arrangement”), 4 described above. Each pair of the second magnetic members is electrically connected to the common first magnetic member.

  Specifically, in the case of “normal arrangement” (also referred to as first normal arrangement) in which the first terminal T101 and the second terminal T201 are electrically connected and the first terminal T102 and the second terminal T202 are electrically connected, FIG. As shown, the pair of second magnetic members M211 and M212 and the first magnetic member M101 are electrically connected, the pair of second magnetic members M213 and M214 and the first magnetic member M102 are electrically connected, and the second magnetic member M215 is connected. The pair of M216 and the first magnetic member M103 are electrically connected, and the pair of second magnetic members M217 and M218 and the first magnetic member M104 are electrically connected. In the case of “normal arrangement” (also referred to as second normal arrangement) in which the first terminal T101 and the second terminal T202 are electrically connected and the first terminal T102 and the second terminal T201 are electrically connected, the second magnetic member M211 is used. And the pair of M212 and the first magnetic member M103 are electrically connected, the pair of second magnetic members M213 and M214 and the first magnetic member M104 are electrically connected, and the pair of second magnetic members M215 and M216 and the first magnetic member M101 are electrically connected. And the pair of second magnetic members M217 and M218 and the first magnetic member M102 are conducted.

  The wirings 231 to 233 form a series circuit in which the eight second magnetic members (M211 to M218) and the four first magnetic members (M101 to M104) are connected in series in the “normal arrangement” described above. In the example of FIG. 3B, the wiring 231 connects the second magnetic member M212 and the second magnetic member M213, the wiring 232 connects the second magnetic member M214 and the second magnetic member M215, and the wiring 233 is the second magnetic member. The member M216 and the second magnetic member M217 are connected. The wirings 231 to 233 may be conductive patterns formed on a circuit board or electric wires.

  In the case of the first normal arrangement described above, as shown in FIG. 3B, the second magnetic member M211, the first magnetic member M101, the second magnetic member M212, the second magnetic member M213, the first magnetic member M102, and the second magnetic member. The magnetic members are connected in series in the order of M214, second magnetic member M215, first magnetic member M103, second magnetic member M216, second magnetic member M217, first magnetic member M104, and second magnetic member M218. In the case of the second normal arrangement described above, the second magnetic member M211, the first magnetic member M103, the second magnetic member M212, the second magnetic member M213, the first magnetic member M104, the second magnetic member M214, the second The magnetic members are connected in series in the order of the magnetic member M215, the first magnetic member M101, the second magnetic member M216, the second magnetic member M217, the first magnetic member M102, and the second magnetic member M218. In both of the first normal arrangement and the second normal arrangement, both ends of the series circuit formed by connecting the magnetic members in series are the second magnetic member M211 and the second magnetic member M218.

  The conduction determination unit 221 of the processing unit 212 determines a conduction state between the second magnetic member M211 and the second magnetic member M218 that can be both ends of the series circuit described above. For example, the continuity determination unit 221 outputs a signal Sout to the second magnetic member M211, and based on the signal Sin input from the second magnetic member M218 according to the signal Sout, the second magnetic member M211 and the second magnetic member M218 The continuity state is determined.

  In one example, the second magnetic member M211 is pulled down to a low level by a sufficiently larger resistance than the series circuit. The continuity determination unit 221 outputs a high-level pulse as the signal Sout to the second magnetic member M211, and determines that the series circuit is conductive when the signal Sin changes from low level to high level according to the signal Sout. To do. When the signal Sin remains low and does not change, the continuity determination unit 221 determines that the series circuit is not conductive.

  As described above, in the biological information measuring apparatus according to the present embodiment, the arrangement of the attachment part 200 with respect to the electrode part 100 includes two first terminals (T101, T102) and two second terminals (T201, T202). In the case of the arrangement that conducts the current (first normal arrangement or second normal arrangement), the eight second magnetic members (M211 to M218) and the four first magnetic members (M101 to M104) are connected in series. A series circuit is formed by the connection. In the continuity determination unit 221, the continuity state of the second magnetic members (M211 and M218) at both ends in the series circuit is determined. Thereby, based on the determination result of the continuity determination unit 221, the two first terminals (T101, T102) and the two second terminals (T201, T202) are not conductive, that is, the attachment unit 200 is an electrode. It is possible to easily detect a state in which the unit 100 is not correctly attached.

  In the above-described biological information measuring device, all the wirings (231 to 233) for forming a series circuit are provided on the attachment part 200, but these wirings may be provided on the electrode part 100 side.

  In the above-described biological information measuring device, the second magnetic members M211 to M218 are magnets, but at least a part of the second magnetic members M211 to M218 may be a soft magnetic material. That is, at least one of the first magnetic member and the second magnetic member that are close to each other may be a magnet in a state where the first terminals (T101, T102) and the second terminals (T201, T202) are electrically connected.

  In the first normal arrangement and the second normal arrangement, all the second magnetic members (M211 to M218) and all the first magnetic members (M101 to M104) are connected in series. In this example, some of these magnetic members may not be included in the series circuit.

<Third Embodiment>
Next, a third embodiment of the present invention will be described. 4A and 4B are diagrams illustrating an example of a biological information measuring apparatus according to the third embodiment. The biological information measuring device shown in FIGS. 4A and 4B replaces the first magnetic members M101 to M104 in the biological information measuring device according to the first embodiment with first magnetic members M121 to M124, and second magnetic members M201 to M204. Is replaced with the second magnetic members M221 to M224, and the other configuration is the same as that of the biological information measuring apparatus according to the first embodiment. 4A shows an arrangement when the attachment portion 200 and the electrode portion 100 are attracted, and FIG. 4B shows an arrangement when the attachment portion 200 and the electrode portion 100 are retracted.

  The first magnetic members M121 to M124 are magnets, respectively, and their arrangement is the same as that of the first magnetic members M101 to M104 (FIG. 1A). That is, the first magnetic members M121, M122, M123, and M124 are arranged on the surface 102 of the sheet member 101 in a pattern corresponding to the four vertices of the rectangle, and are arranged counterclockwise in this order. The first terminal T101 is disposed in the middle of the first magnetic members M124 and M121, and the first terminal T102 is disposed in the middle of the first magnetic members M122 and M123. On the surface 102 of the sheet member 101, the polarities of the first magnetic members M121 and M122 are “S”, and the polarities of the first magnetic members M123 and M124 are “N”.

  The second magnetic members M221 to M224 are magnets, respectively, and their arrangement is the same as the second magnetic members M201 to 204 (FIG. 1A). That is, the second magnetic members M221, M222, M223, and M224 are arranged on the surface 202 of the main body case 201 in a pattern corresponding to the four vertices of the rectangle, and are arranged clockwise in this order. The second terminal T201 is disposed between the second magnetic members M224 and M221, and the second terminal T202 is disposed between the second magnetic members M222 and M223. On the surface 202 of the main body case 201, the polarities of the second magnetic members M221 and M222 are “N”, and the polarities of the second magnetic members M223 and M224 are “S”.

  As shown in FIG. 4A, when the mounting portion 200 is disposed with respect to the electrode portion 100, the first terminal T101 and the second terminal T201 are electrically connected and the first terminal T102 and the second terminal T202 are electrically connected. 1 magnetic member M121 and 2nd magnetic member 221, 1st magnetic member M122 and 2nd magnetic member 222, 1st magnetic member M123 and 2nd magnetic member 223, and 1st magnetic member M124 and 2nd magnetic member 224, respectively Proximity. Since these adjacent magnetic members have different polarities, the attachment portion 200 and the electrode portion 100 are attracted by the respective magnetic forces, and the attachment portion 200 is attached to the electrode portion 100.

  On the other hand, when the arrangement of the attachment part 200 with respect to the electrode part 100 is an arrangement in which the first terminal T101 and the second terminal T202 are conducted and the first terminal T102 and the second terminal T201 are conducted, as shown in FIG. 4B. The first magnetic member M121 and the second magnetic member 223, the first magnetic member M122 and the second magnetic member 224, the first magnetic member M123 and the second magnetic member 221, and the first magnetic member M124 and the second magnetic member 222. Are close to each other. Since these adjacent magnetic members have the same polarity, the attachment portion 200 and the electrode portion 100 are retracted by the respective magnetic forces, and the attachment portion 200 is not attached to the electrode portion 100.

  As described above, in the biological information measuring apparatus according to the present embodiment, there is a one-to-one correspondence between the two first terminals (T101, T102) and the two second terminals (T201, T202). That is, the first terminal T101 and the second terminal T201 correspond, and the first terminal T102 and the second terminal T202 correspond. When the arrangement of the mounting portion 200 with respect to the electrode portion 100 is an arrangement in which the two first terminals (T101, T102) and the two second terminals (T201, T202) are conducted in this one-to-one correspondence (FIG. 4A). Since the attachment part 200 and the electrode part 100 are attracted by the magnetic force between the first magnetic members M121 to M124 and the second magnetic members M221 to M224, the attachment part 200 is attached to the electrode part 100. On the other hand, the arrangement of the mounting part 200 with respect to the electrode part 100 is different from the one-to-one correspondence, and the two first terminals (T101, T102) and the two second terminals (T201, T202) are connected. In the case of the conductive arrangement (FIG. 4B), the mounting portion 200 and the electrode portion 100 retreat due to the magnetic force between the first magnetic members M121 to M124 and the second magnetic members M221 to M224. It cannot be attached to the part 100. Therefore, it is possible to avoid conduction between the two first terminals (T101, T102) and the two second terminals (T201, T202) in a correspondence relationship different from a predetermined one-to-one correspondence relationship.

<Fourth Embodiment>
Next, a fourth embodiment of the present invention will be described. FIG. 5A to FIG. 5C are diagrams illustrating an example of a biological information measuring apparatus according to the fourth embodiment. The biological information measuring apparatus shown in FIGS. 5A to 5C replaces the first magnetic members M101 to M104 in the biological information measuring apparatus according to the first embodiment with a first magnetic member M131, and the first terminals T101 and T102 are first. The terminals T131 and T132 are replaced, the second magnetic members M201 to M204 are replaced with the second magnetic member M231, the second terminals T201 and T202 are replaced with the second terminals T231 and T232, and the other configuration is the first configuration. This is the same as the biological information measuring apparatus according to the embodiment. FIG. 5A shows a state before the attachment part 200 is attached to the electrode part 100. 5B shows the second terminals T231 and T232 of the mounting part 200 and the second magnetic member M231, and FIG. 5C shows the first terminals T131 and T132 of the electrode part 100 and the first magnetic member M131.

  The first terminal T131 is connected to the biological electrode E101, and the first terminal T132 is connected to the biological electrode E102. The two first terminals (T131, T132) have a one-to-one correspondence with the two biological electrodes (E101, E102), and the corresponding electrodes and terminals are electrically connected.

  As shown in FIG. 5C, the first terminals T131 and T132 have different distances from the first center position P1 on the surface 102 of the electrode unit 100. In the example of FIG. 5C, the first terminal T131 is formed in a region overlapping the first center position P1, and the first terminal T132 is formed in a region away from the first center position P1. In the example of FIG. 5A, the first center position P1 is substantially the center in the belt-like region of the sheet member 101.

  Further, as shown in FIG. 5C, the first terminals T131 and T132 have a rotationally symmetric shape with the first center position P1 as the center when viewed from the direction perpendicular to the surface 102 of the electrode unit 100. In the example of FIG. 5C, the first terminal T131 is a sheet-like conductor electrode formed in a circular shape, and the first terminal T132 is a sheet-like conductor electrode formed in an annular shape.

  As shown in FIG. 5C, the first magnetic member M131 has a rotationally symmetric shape with the first center position P1 as the center when viewed from the direction perpendicular to the surface 102 of the electrode unit 100. In the example of FIG. 5C, the first magnetic member M131 is formed in an annular shape. The first terminals T131 and T132 are located inside the annular first magnetic member M131. The first magnetic member M131 may be disposed so as to be exposed on the surface 102 of the sheet member 101 as shown in FIG. 5A, or may be embedded in the sheet member 101.

  As shown in FIG. 5B, the second terminals T231 and T232 have different distances from the second center position P2 on the surface 202 of the mounting portion 200. In the example of FIG. 5B, the second terminal T231 is disposed at a location overlapping the second center position P2, and the second terminal T232 is disposed at a location away from the second center position P2. In the example of FIG. 5A, the second center position P <b> 2 is approximately the center of the rectangular surface 202 of the main body case 201.

  The second terminal T231 is an elastic member that is elastically deformed by contact with the first terminal T131, and has, for example, a structure as shown in FIGS. 6A and 6B. 6A is a perspective view of the second terminal T231, and FIG. 6B is a plan view of the second terminal 231. FIG. The second terminal T232 has the same structure as the second terminal T231.

  The second terminal T231 shown in FIGS. 6A and 6B is an elastic member formed by bending a plate-shaped metal body, and the band-shaped plate members 52 and 53 and one end of the band-shaped plate members 52 and 53 are connected to each other. And a rectangular plate member 51. The belt-like plate members 52 and 53 are spirally bent around the center line L perpendicular to the XY plane in the same direction. The rectangular plate member 51 is substantially square in plan view as viewed from the Z direction. The connecting portions of the belt-like plate members 52 and 53 and the rectangular plate member 51 are located symmetrically with respect to the center (center line L) of the square, and the opposite of the square from the diagonal vertex of the square. It extends along the side. As shown in FIG. 6A, the strip-shaped plate members 52 and 53 move away from the rectangular plate member 51 in the Z1 direction and move spirally as they go from one end connected to the rectangular plate member 51 to the other end. The diameter is smaller. A contact portion 55 that is in contact with the first terminal T131 is provided at the other end of the belt-like plate member 52 that is not connected to the rectangular plate member 51. A protrusion 56 protruding in the Z1 direction is provided at a position corresponding to the center of rotation of the spiral in the contact portion 55. The other end of the belt-like plate member 53 is located on the Z2 side with respect to the contact portion 55. The second terminal T231 generates an elastic force that presses the first terminal T131 in contact with the contact portion 55 in the Z1 direction.

  As shown in FIG. 5B, the second magnetic member M231 has a rotationally symmetric shape with the second center position P2 as the center when viewed from the direction perpendicular to the surface 202 of the mounting portion 200. In the example of FIG. 5B, the second magnetic member M231 is formed in an annular shape. The second terminals T231 and T232 are located inside the annular second magnetic member M231. The second magnetic member M231 may be disposed so as to be exposed on the surface 102 of the main body case 201 as shown in FIG. 5A, or may be embedded in the main body case 201.

  At least one of the first magnetic member M131 and the second magnetic member M231 is a magnet. When the surface 202 of the attachment part 200 is brought close to the surface 102 of the electrode part 100 as indicated by the dotted arrow in FIG. 5A, the attachment part 200 and the electrode part 100 are brought into contact by the magnetic force of the first magnetic member M131 and the second magnetic member M231. The attachment part 200 is attached to the electrode part 100 by attracting.

  In a state where the attachment part 200 is attached to the electrode part 100, the first center position P1 of the surface 102 and the second center position P2 of the surface 202 substantially overlap each other when viewed from the direction perpendicular to the surface 102. At this time, the second terminal T231 is electrically connected to the first terminal T131, and the second terminal T232 is electrically connected to the first terminal T131.

  As described above, according to the biological information measuring apparatus according to the present embodiment, each of the two first terminals (T131, T132) has a different distance from the first center position P1 on the surface 102 of the electrode unit 100. Different from the first terminal. Further, each of the two second terminals (T231, T232) is different from the other second terminals in the distance from the second center position P2 on the surface 202 of the mounting portion 200. Therefore, the first center position P1 and the second center position P2 overlap each other when viewed from the direction perpendicular to the surface 102 of the electrode part 100 (hereinafter, referred to as “a state where the center positions are aligned”). When the attachment part 200 is attached to the electrode part 100 in such a manner, each of the two first terminals (T131, T132) can only conduct with one second terminal having the same distance from the first center position P1. Yes, it does not conduct with other second terminals. Therefore, when the attachment part 200 is attached to the electrode part 100 with the center positions aligned, even if the attachment angle of the attachment part 200 with respect to the electrode part 100 is different, the two first terminals (T131, T132) and the two The second terminals (T231, T232) do not conduct with a correspondence relationship different from a predetermined one-to-one correspondence relationship. That is, it can be avoided that the correspondence relationship between the two first terminals (T131, T132) and the two second terminals (T231, T232) varies depending on how the attachment part 200 is attached to the electrode part 100. .

  Further, according to the biological information measuring apparatus according to the present embodiment, since both the first magnetic member M131 and the second magnetic member M231 have a rotationally symmetric shape, the mounting portion 200 is in the state where the center positions are aligned. It becomes easy to be attached to.

  Moreover, according to the biological information measuring apparatus according to the present embodiment, the two first terminals (T131, T132) have a rotationally symmetric shape, so that the attachment part 200 is attached to the electrode part 100 with the center positions aligned. In this case, the two first terminals (T131, T132) and the two second terminals (T231, T232) are easily conducted regardless of the attachment angle of the attachment part 200 with respect to the electrode part 100.

  In the above-described biological information measurement device, as an example, the case where the first terminals (T131, T132) of the electrode unit 100 have a rotationally symmetric shape has been described, but the present embodiment is not limited to this example. In another example of the present embodiment, the second terminals (T231, T232) of the mounting portion 200 have a rotationally symmetric shape with the second center position P2 as the center, and the first terminals (T131, T132) are illustrated. An elastic member as shown in FIG. 6A and FIG. 6B may be used.

<Fifth Embodiment>
Next, a fifth embodiment of the present invention will be described. FIG. 7A to FIG. 7E are diagrams illustrating an example of a biological information measuring apparatus according to the fifth embodiment. The biological information measuring apparatus shown in FIGS. 7A to 7E deletes the first magnetic members M101 to M104 and the second magnetic members M201 to M204 in the biological information measuring apparatus according to the first embodiment, and first terminals T101 and T102. Is replaced with the first terminals T151 and T152, the second terminals T201 and T202 are replaced with the second terminals T251 and T252, and other configurations are the same as those of the biological information measuring apparatus according to the first embodiment. FIG. 7A shows a state before the attachment part 200 is attached to the electrode part 100. FIG. 7B is a perspective view of the second terminals T251 and T252, and FIG. 7C is a view showing the structure of the back side of the second terminals T251 and T252 facing the main body case 201. FIG. 7D is a perspective view of the first terminals T151 and T152, and FIG. 7E is a diagram showing the structure of the back side of the first terminals T151 and T152 facing the sheet member 101.

  The first terminal T151 is connected to the biological electrode E101, and the first terminal T152 is connected to the biological electrode E102. The two first terminals (T151, T152) have a one-to-one correspondence with the two biological electrodes (E101, E102), and the corresponding electrodes and terminals are electrically connected.

  As shown in FIG. 7A, the first terminal T151 and the first terminal T152 are disposed on the surface 102 of the electrode part 100, and the second terminals T251 and T252 are disposed on the surface 202 of the attachment part 200.

  As shown in FIGS. 7B and 7C, the second terminal T251 has a large-diameter cylindrical portion 242 located on the surface 202 side, and a small-diameter cylindrical portion 243 that is provided on the cylindrical portion 242 with its axis aligned. . A groove 244 along the circumferential direction is formed on the side surface of the small-diameter cylindrical portion 243. As shown in FIGS. 7B and 7C, the second terminal T252 includes a large-diameter annular portion 245 positioned on the surface 202 side, and a small-diameter annular portion 246 provided with the shaft aligned on the annular portion 245. Have. The large-diameter cylindrical portion 242 is arranged with the axis aligned inside the annular portions 245 and 246, and a gap between the two is filled with an insulating member 241 such as a resin.

  As shown in FIGS. 7D and 7E, the first terminal 152 includes a large-diameter annular portion 145 located on the surface 102 side, and a small-diameter annular portion 146 provided on the annular portion 145 with the shaft aligned. Have. The annular portion 146 of the first terminal 152 is substantially the same diameter as the annular portion 246 of the second terminal 252. The first terminal 151 is formed in a disc shape, and is arranged with its axis aligned inside the large-diameter annular portion 145. A gap between the disk-shaped first terminal 151 and the large-diameter annular portion 145 is filled with an insulating member 141 such as a resin. The insulating member 141 is also filled in a part of the inside of the small-diameter annular portion 146, and a cylindrical opening 143 having a slightly larger diameter than the small-diameter cylindrical portion 243 is formed in the central portion. The disk-shaped first terminal 151 is exposed to the outside at the opening 143. Two linear bodies 142 </ b> A and 142 </ b> B extending in parallel to a direction perpendicular to the axial direction of the opening 143 are provided on the inner wall of the cylindrical opening 143. The linear bodies 142A and 142B are elastically deformable.

  When attaching the attachment part 200 to the electrode part 100, the small diameter cylindrical part 243 of the second terminal 251 is inserted into the opening part 143 of the insulating member 141. At this time, the two linear bodies 142A and 142B provided in the opening 143 are elastically deformed and engaged with the groove 244 of the small-diameter cylindrical portion 243. In this engaged state, the tip of the cylindrical portion 243 of the second terminal T251 is electrically connected to the first terminal 151, and the annular portion 246 of the second terminal 252 is electrically connected to the annular portion 146 of the first terminal 152. That is, the first terminal 151 and the second terminal 251 are conducted, and the first terminal 152 and the second terminal 252 are conducted.

  According to the biological information measuring apparatus according to the present embodiment, since it is possible to connect two terminals at the same time with a structure similar to that of a snap fastener, compared to a case where a snap fastener is provided for connecting two terminals, respectively. The space used for connecting the terminals can be reduced.

  In the above-described biological information measuring device, the attachment part 200 is attached to the electrode part 100 by engaging the two linear bodies 142A and 142B with the groove 244 of the cylindrical part 243 having a small diameter. In another example of the form, at least one of the first terminal 151 and the second terminal 251 may be formed of a magnet, and at least one of the first terminal 152 and the second terminal 252 may be formed of a magnet. Thereby, it is possible to attach the attachment part 200 to the electrode part 100 by magnetic force similarly to other embodiment mentioned above.

  As mentioned above, although several embodiment of this invention was described, this invention is not limited only to embodiment mentioned above, Various modifications are included.

  For example, the number of the first magnetic members and the number of the second magnetic members in each of the embodiments described above are arbitrary, and may be larger or smaller than the exemplified numbers. Further, the number of first magnetic members and the number of second magnetic members may be different.

  The number of the first terminals and the number of the second terminals in each embodiment described above are arbitrary, and may be more or less than the exemplified number. Further, the number of first terminals and the number of second terminals may be different.

  In each embodiment mentioned above, although the example in which the 1st terminal and the 1st magnetic member are formed as another independent member is given, these may be formed integrally as a common member. Similarly, the second terminal and the second magnetic member may be integrally formed as a common member.

DESCRIPTION OF SYMBOLS 100 ... Electrode part, 101 ... Sheet member, 102 ... Surface, 103 ... Adhesive surface, 200 ... Attachment part, 201 ... Main body case, 202 ... Surface, 211 ... Amplifier, 212 ... Processing part, 213 ... Communication part, 221 ... Conduction Determination unit, 231 to 233... Wiring, M101 to M104, M121 to M124, M131 ... first magnetic member, M201 to M204, M211 to M218, M221 to M224, M231 ... second magnetic member, T101, T102, T131, T132 , T151, T152, first terminal, T201, T202, T231, T232, T251, T252, second terminal, E101, E102, biomedical electrode, P1, first central position, P2, second central position.

Claims (7)

A biological information measuring device for measuring biological information obtained through a biological electrode in contact with a biological body,
An electrode portion including the biological electrode;
An attachment portion that is detachably attached to the electrode portion;
The electrode part is
A first terminal connected to the biological electrode;
A first magnetic member,
The mounting portion is
A second terminal for inputting the biological information;
A second magnetic member,
At least one of the first magnetic member and the second magnetic member is a magnet;
When the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the first terminal and the second terminal are electrically connected, the attachment portion and the attachment portion are caused by a magnetic force between the first magnetic member and the second magnetic member. The electrode part attracts,
Biological information measuring device. The electrode part is
A plurality of the biological electrodes;
A plurality of the first terminals corresponding one-to-one with the plurality of biological electrodes;
A plurality of the first magnetic members;
The mounting portion is
A plurality of the second terminals;
A plurality of the second magnetic members;
Two or more first magnetic members and two or more second magnetic members in the case where the arrangement of the attachment portion with respect to the electrode portion is an arrangement for conducting the plurality of first terminals and the plurality of second terminals. And conduct as a conductor,
When the two or more first magnetic members and the two or more second magnetic members are electrically connected, at least a part of the two or more second magnetic members and at least a part of the two or more second magnetic members are Wiring for forming a series circuit connected in series is provided on at least one of the electrode part and the attachment part,
The biological information measuring device according to claim 1. Both ends of the series circuit are the second magnetic members,
The attachment portion includes a continuity determination unit that determines a continuity state of the second magnetic members at both ends of the series circuit.
The biological information measuring device according to claim 2. The electrode part is
A plurality of the biological electrodes;
A plurality of the first terminals corresponding one-to-one with the plurality of biological electrodes;
A plurality of the first magnetic members;
The mounting portion is
A plurality of second terminals corresponding one-to-one with the plurality of first terminals;
A plurality of the second magnetic members;
In the case where the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are conducted in a one-to-one correspondence relationship, at least one of the plurality of first magnetic members. The attachment portion and the electrode portion are attracted by a magnetic force between the portion and at least a part of the plurality of second magnetic members,
When the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are conducted in a correspondence relationship different from the one-to-one correspondence relationship, the plurality of first magnetic properties. The attachment portion and the electrode portion are retracted by a magnetic force between at least a part of the member and at least a part of the plurality of second magnetic members;
The biological information measuring device according to any one of claims 1 to 3. The electrode unit includes a plurality of the biological electrodes, and the plurality of first terminals corresponding to the plurality of biological electrodes on a one-to-one basis,
The mounting portion includes a plurality of the second terminals,
Each of the plurality of first terminals is different in distance from the first center position on the surface of the electrode part from the other first terminals,
Each of the plurality of second terminals is different in distance from the second center position on the surface of the mounting portion from the other second terminals,
When the arrangement of the attachment portion with respect to the electrode portion is an arrangement in which the plurality of first terminals and the plurality of second terminals are electrically connected, the magnetic force between the first magnetic member and the second magnetic member is used. The attachment portion and the electrode portion attract each other, and the first center position and the second center position overlap when viewed from a direction perpendicular to the surface of the electrode portion.
The biological information measuring device according to any one of claims 1 to 4. The first magnetic member has a rotationally symmetric shape centered on the first center position when viewed from a direction perpendicular to the surface of the electrode portion.
The second magnetic member has a rotationally symmetric shape centered on the second center position when viewed from a direction perpendicular to the surface of the mounting portion.
The biological information measuring device according to claim 5. The first terminal has a rotationally symmetric shape centered on the first center position when viewed from a direction perpendicular to the surface of the electrode portion.
Or
The second terminal has a rotationally symmetric shape centered on the second center position when viewed from a direction perpendicular to the surface of the mounting portion.
The biological information measuring device according to claim 5 or 6.

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