JP2019072309A - Biological information measurement electrode, biological information acquisition device, and method of manufacturing biological information measurement electrode - Google Patents

Abstract

To provide a biological information measurement electrode for contact with a living body, which electrode has a simple structure and can supply adequate amounts of fluid and accurately suck the supplied fluid, and also to provide a biological information acquisition device and a method of manufacturing a biological information measurement electrode.SOLUTION: The biological information measurement electrode comprises: a base part; and electrode legs extending from the base part in a way that the distal ends thereof are oriented in a first direction from one side of the base body, the distal ends of the electrode legs can be brought into contact with a living body. In the base body, a first base body through-hole having a first base body opening and a second base body through-hole having a second base body opening are provided independently from each other. In the electrode leg, a first leg part through-hole having a first leg part opening in the distal end side and a second leg part through-hole having a second leg part opening in the distal end side are provided independently from each other. A first flow channel system including the first base body through-hole and the first leg part through-hole is separated from a second flow channel system including the second base body through-hole and the second leg part through-hole.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a biological information measurement electrode, a biological information acquisition apparatus, and a method of manufacturing the biological information measurement electrode.

  In recent years, measurement of various living body information such as pulse waves, electrocardiograms, myoelectric potentials, body fats, electroencephalograms and the like has increased. At that time, various electrodes for measuring biological information have been proposed in order to stably contact the living body. In particular, various contrivances have been made with regard to electrodes for measuring an electroencephalogram to be attached to the head where hair is present. And, in order to stabilize the contact with the scalp, some use a conductive gel. Patent Document 1 has a sensor member (corresponding to an electrode) including an advancing and retracting means and a cylindrical electrode, and a configuration in which a paste supply means for automatically supplying an electrolyte paste to the scalp is connected to the cylindrical electrode Is disclosed.

JP 2004-254953 A

  In order to measure biological information, a configuration for supplying a conductive gel is likely to be large in an electrode in contact with a living body. Moreover, since the size is larger than the configuration of only the electrodes, installation is difficult. In addition, the amount of conductive gel supplied tends to be large, and it takes time and effort to remove the conductive gel agent from the scalp after measurement. Moreover, the process of manufacturing the electrode with the cavity which injects a conductive gel agent is complicated, and it is calculated | required to manufacture easily.

  The present invention provides a biological information measuring electrode, a biological information measuring device, and a biological information measuring electrode, which have a simple structure, can supply an appropriate amount of fluid, and can accurately suction the supplied fluid, in an electrode in contact with a living body. Intended to provide a method.

In order to solve the above-mentioned subject, one mode of the present invention is provided with a substrate part, and an electrode leg extended from a substrate part so that a tip part may face to the 1st direction side which is one side of a substrate part. The tip of the electrode leg is an electrode for measuring biological information which can be in contact with a living body.
In this biological information measuring electrode, the first base portion through hole having the first base opening and the second base portion through hole having the second base opening are independently provided in the base portion. .
In the electrode leg, a first leg through hole having a first leg opening on the tip end side and a second leg through hole having a second leg opening on the tip end side are each independently Provided.
Further, in the biological information measuring electrode, a first channel system including a first base portion through hole and a first leg portion through hole, a second base portion through hole and a second leg portion through hole And a second flow path system different from the first flow path system.

  According to such a configuration, two channels (the first channel system and the second channel system) having different systems from each other are formed in the pole leg, so that each opening (the first substrate) of the base portion Work can be performed independently and independently from the opening and the second substrate opening). For example, performing both operations of supplying and sucking conductive fluid (conductive fluid) such as electrolyte solution or conductive gel separately, or individually controlling the same or different two conductive fluids Can also be supplied.

  In the electrode for measuring biological information, the base portion and the electrode leg are integrally formed, and a joint is provided at a first joint portion connecting the first base portion through hole and the first leg portion through hole. It is not necessary to have a joint at the second joint portion connecting the second base portion through hole and the second leg portion through hole.

  According to such a configuration, since the first base portion through hole and the first leg portion through hole, or the second base portion through hole and the second leg portion through hole do not have joints, In the first flow path system and the second flow path system, the factor that impedes the flow of a conductive fluid (conductive fluid) such as an electrolytic solution or a conductive gel is reduced. Thereby, the smooth flow of the conductive fluid can be realized.

In the electrode for measuring biological information, the base portion is further provided with a first protrusion extending in the opposite direction to the first direction, and the first base opening is positioned at the first protrusion. It may be like that.
According to such a configuration, the conductive fluid is sent from the first base opening provided in the first projection to the first flow path system, or suction is performed from the first flow path system through the first base opening. Can be
In addition, the first projection is provided on the opposite side to the side facing the living body (the first direction side), so that the conductive fluid can be supplied into the flow path of the first flow path system or the first flow path It becomes easy to suction the conductive fluid from within the flow path of the system. For this reason, even if backflow from the flow path side occurs, for example, the living body is unlikely to be affected.

In the electrode for measuring biological information, the base portion may be further provided with a second protrusion extending from the base portion, and the second base opening may be positioned at the second protrusion.
According to such a configuration, the conductive fluid is sent from the second base opening provided in the second protrusion to the second flow channel system, or conductive from the second flow channel system through the second base opening. The fluid can be aspirated.

  In the electrode for measuring biological information, a first fluidizing portion having a first fluid hole communicating with a first base portion through hole through a first base opening, and a second base through a second base opening. And a second fluidizing portion having a second fluid hole communicating with the partial through hole.

  According to such a configuration, the first flow is performed by supplying or suctioning the conductive fluid in the first flow section, without supplying or suctioning the conductive fluid directly from the first substrate opening. The conductive fluid can be supplied to the channel system or the conductive fluid can be sucked from the first channel system. For this reason, even if the base portion provided with the first base opening is in the vicinity of the living body, etc., it is difficult to supply or suction the conductive fluid to the first base opening, the first flow path system It is possible to stably supply the conductive fluid or to suction the conductive fluid stably from the first channel system.

  Similarly, the conductive fluid is supplied or sucked in the second flow section directly from the second substrate opening without supplying or suctioning the conductive fluid, whereby the second flow path system is made conductive. The conductive fluid can be supplied or sucked from the second flow path system. For this reason, even if the base portion provided with the second base opening is in the vicinity of the living body or the like and it is difficult to supply or suction the conductive fluid to the second base opening, the second flow path system It is possible to stably supply the conductive fluid or to suction the conductive fluid stably from the second flow path system.

In the biological information measuring electrode, the electrode leg may contain conductive carbon.
According to such a configuration, the conductive carbon contained in the electrode leg can provide electrical continuity with the living body, and the flexibility of the carbon allows the pressure of contact with the living body to be released. Can. As a result, electrical continuity with the living body can be reliably obtained, and the subject can be prevented from feeling discomfort.

In the biological information measuring electrode, the electrode leg may contain a conductive metal.
According to such a configuration, the conductive metal contained in the electrode leg can provide electrical continuity with the living body, and the electrode leg can be easily configured by metal processing.

One aspect of the present invention comprises a base portion and a plurality of electrode legs extended from the base portion so that the tip end faces the first direction side which is one of the base portions, and a plurality of electrode legs The tip of at least one is a living body information measurement electrode which can be in contact with a living body.
In the electrode for measuring biological information, in the base portion, the plurality of first base portion through holes having the first base opening and the plurality of second base portion through holes having the second base opening are independent of each other. Provided.
Each of the plurality of electrode legs includes a first leg through hole having a first leg opening on the tip end side, and a second leg through hole having a second leg opening on the tip end side. Each is provided independently.
In the biological information measuring electrode, a first flow path system including a plurality of first base portion through holes and a plurality of first leg portion through holes, a plurality of second base portion through holes, and a plurality of second base portion through holes. A second flow path system including the second leg through holes and different from the first flow path system is configured.

According to such a configuration, the first flow path system extending from the first base opening through the first base portion through hole and the first leg through hole to the first leg opening at the tip end; The flow path of two independent systems consisting of the second flow path system from the base opening to the second leg opening of the tip through the second base portion through hole and the second leg through hole, It is formed in each of a plurality of electrode legs.
For this reason, it is possible to work independently and independently using the respective openings (the first base opening and the first base opening) of the base portion. For example, performing both operations of supplying and sucking conductive fluid (conductive fluid) such as electrolyte solution or conductive gel separately, or individually controlling the same or different two conductive fluids Can also be supplied.

In the electrode for measuring biological information, in the connection portion where each of the plurality of electrode legs and the base portion are connected, a plane crossing the flow direction of the flow paths in each of the first flow path system and the second flow path system It is not necessary to have the bonding surface between the electrode leg and the base portion.
According to such a configuration, the connection portion between each of the plurality of electrode legs and the base portion does not have a bonding surface that crosses the flow direction of the flow path. Factors that impede the flow of fluid having conductivity (conductive fluid) are reduced. Thereby, the smooth flow of the conductive fluid can be realized.

In the biological information measuring electrode, each of the plurality of first base portion through holes and the plurality of second base portion through holes may be formed linearly.
According to such a configuration, since the electrolytic solution and the like that has flowed to each of the first base portion through hole and the second base portion through hole flow linearly, the conductive fluid can be transferred to each electrode leg. It can be sent smoothly.

In the electrode for measuring biological information, the base portion is further provided with a first projection portion extending in the opposite direction to the first direction side, and the first projection portion is a first base portion through hole The first cavity may have a first cavity opening that is open to the outside of the base.
According to such a configuration, the conductive fluid is sent from the first cavity opening provided in the first projection to the first channel system, or from the first channel system through the first cavity opening. It can be aspirated.
In addition, the first projection is provided on the opposite side to the side facing the living body (the first direction side), so that the conductive fluid can be supplied into the flow path of the first flow path system or the first flow path It becomes easy to supply the conductive fluid from within the flow path of the system. For this reason, even if backflow from the flow path side occurs, for example, the living body is unlikely to be affected.

In the electrode for measuring biological information, the base portion is further provided with a second protrusion extending from the base portion, and the second protrusion is a second hollow portion communicating with the second base portion through hole. And the second cavity portion may have a second cavity opening that opens to the outside of the base portion.
According to such a configuration, the conductive fluid is sent from the second cavity opening provided in the second projection to the second channel system, or from the second channel system via the second cavity opening. The conductive fluid can be aspirated.

  In the biological information measuring electrode, the plurality of electrode legs are provided along the outer peripheral portion of the base portion, and the first hollow portion and the second hollow portion are provided separately from each other at the central portion of the base portion. It may be done.

According to such a configuration, since the contact with the living body is performed by the plurality of electrode legs provided along the outer peripheral portion of the base portion, the contact pressure can be dispersed. Thereby, the discomfort due to the contact of the electrode legs can be alleviated.
In addition, the respective hollow portions (the first hollow portion and the second hollow portion) are provided in the central portion of the base portion, so that the plurality of flow paths are made uniform, and the hollow portions are made into the plurality of flow path holes. The electrolytic solution and the like can be flowed in a well-balanced manner, and the electrolytic solution and the like can be uniformly supplied to the plurality of electrode legs.

In the electrode for measuring biological information, each of the first protrusion and the base may have conductivity.
According to such a configuration, the first protrusion can be used as an electrode terminal by the conductive first protrusion and the base portion. Electrical connection between each electrode leg and the external device can be obtained by the wiring connected to the first protrusion.

  In the electrode for measuring biological information, a first fluidizing portion having a first fluid hole communicating with a first base portion through hole through a first base opening, and a second base through a second base opening. And a second fluidizing portion having a second fluid hole communicating with the partial through hole.

  According to such a configuration, even when the conductive fluid is not supplied or sucked directly from the first cavity opening or the second cavity opening, the conductive flow is performed in the first flow unit or the second flow unit. By supplying or aspirating the animal, the conductive fluid can be supplied to the first channel system or the second channel system, or the conductive fluid can be sucked from the first channel system or the second channel system. . For this reason, the conductive fluid is supplied to or suctioned from the first cavity opening or the second cavity opening, for example, with the base portion provided with the first cavity opening or the second cavity opening in the vicinity of the living body. Stable supply of conductive fluid to the first channel system or second channel system, or stable conductive fluid from the first channel system or second channel system It is realized that aspiration.

In the biological information measuring electrode, each of the plurality of electrode legs may contain conductive carbon.
According to such a configuration, the conductive carbon contained in each electrode leg can provide electrical continuity with the living body, and the flexibility of the carbon allows the pressure of contact with the living body to be released. be able to. As a result, electrical continuity with the living body can be reliably obtained, and the subject can be prevented from feeling discomfort.

In the biological information measuring electrode, each of the plurality of electrode legs may contain a conductive metal.
According to such a configuration, the conductive metal contained in each electrode leg can provide electrical continuity with the living body, and the electrode leg can be easily configured by metal processing.

According to one aspect of the present invention, there is provided an electrode for measuring biological information, a supply unit for supplying a fluid having conductivity to a first channel system, and a suction unit for suctioning a fluid from a second channel system. And a living body information acquiring apparatus.
According to such a configuration, the fluid is sent from the supply section to the first flow path system, and is sent to the living body from the first leg opening. In addition, the fluid is sucked through the second flow path system by the suction operation of the suction unit. Therefore, the fluid can be maintained at an optimum amount by the operation of supplying the fluid from the first channel system and aspirating from the second channel system.

  One aspect of the present invention includes a base portion, and a plurality of electrode legs extended from the base portion so that the tip end faces the first direction side, which is one of the base portions, and the base portion is provided A plurality of first base body through holes having a first base opening and a plurality of second base body through holes having a second base opening are provided independently of each other, and each of the plurality of electrode legs is provided The first leg through hole having the first leg opening on the tip end side and the second leg through hole having the second leg opening on the tip end side are independently provided, A first channel system including a plurality of first base body through holes and a plurality of first leg through holes; a plurality of second base body through holes and a plurality of second leg through holes; It is a manufacturing method of the electrode for biological information measurement with which the 2nd channel system different from 1 channel system was constituted.

The manufacturing method includes a laminating step including laminating a plurality of plate-like members to form an intermediate member including a part of the base portion and a plurality of electrode legs extended from the base portion; Bending each of the plurality of electrode legs to include the tip directed to the first direction side.
In the stacking step, the first channel system and the second channel system are formed in the intermediate member by stacking the plurality of plate members.
According to such a configuration, since the laminating step of laminating the plurality of plate members and the bending step of bending the intermediate member formed in the laminating step are provided, the plurality of first base portion through holes And a first flow path system including a plurality of first leg through holes, and a second flow path system including a plurality of second base body through holes and a plurality of second leg through holes The biological information measuring electrode can be easily manufactured.

In the above manufacturing method, the first member, the second member, the third member, the fourth member, and the fifth member, which are plate-like members, may be prepared.
The first member has a first central portion having a first member through hole penetrating the base, and a plurality of first extending portions extending from the first central portion.
The second member has a second central portion having a second cavity hole corresponding to the first member through hole, and a plurality of second extending portions extending from the second central portion.
The second central portion is provided with a plurality of second flow passage holes continuous with the second hollow hole, and the second extension portion is for the second electrode leg continuous with the second flow passage hole. A hole is provided.
The third member has a third central portion corresponding to the first central portion and the second central portion, and a plurality of third extending portions extending from the third central portion.
Third member through holes corresponding to the second electrode leg holes are provided on the extension end side of the third extension portion.
The fourth member has a fourth central portion having a fourth cavity hole penetrating the base, and a plurality of fourth extending portions extending from the fourth central portion.
The fourth central portion is provided with a plurality of fourth flow passage holes continuous with the fourth hollow hole.
The fourth extending portion is provided with a fourth electrode leg hole continuing to the fourth flow passage hole, and on the extending end side of the fourth extending portion, each of the third member through holes is provided. A corresponding fourth member through hole is provided.
The fifth member has a fifth central portion having a fifth member first through hole corresponding to the fourth cavity hole, and a plurality of fifth extending portions extending from the fifth central portion.
A fifth member second through hole corresponding to each of the fourth member through holes is provided on the extension end side of the fifth extension portion, and a fifth member corresponding to each of the fourth electrode leg holes A third through hole is provided.

In the stacking step, the first member, the second member, the third member, the fourth member, and the fifth member are stacked and joined in this order.
Thus, the base portion is formed by stacking the first central portion, the second central portion, the third central portion, the fourth central portion, and the fifth central portion. In addition, a plurality of electrode legs are formed by stacking the first extending portion, the second extending portion, the third extending portion, the fourth extending portion, and the fifth extending portion.

In the laminating step, one side of the first member through hole is made the first base opening, one side of the fifth member first through hole is made the first leg opening, and one side of the fifth member first through hole is made the first (2) A base opening, and one side of the fifth member third through hole is a second leg opening, and the first member through hole and the second cavity hole are made continuous, and the second electrode leg hole and the third member The through hole is made continuous, the third member through hole and the fourth member through hole are made continuous, the fourth member through hole and the fifth member first through hole are made continuous, and the first member through hole to the fifth member Forming a first flow path system leading to the second through hole;
Further, the fifth member first through hole and the fourth cavity hole are made to be continuous, the fourth electrode leg hole and the fifth member third through hole are made to be continuous, and the fifth member first through hole to the fifth member Forming a second flow path system leading to the third through hole;
The bending step includes bending each of the plurality of electrode legs to the side where the fifth member second through hole and the fifth member third through hole are formed.

According to such a configuration, in the stacking step, the first flow path system and the second flow path are formed by overlapping and joining the first member, the second member, the third member, the fourth member, and the fifth member in this order. A base portion in which a route system is formed and a plurality of electrode legs are formed.
Further, in the bending step, the plurality of electrode legs are extended from the base portion so that the tips thereof face the first direction side which is one of the base portions.

  That is, by laminating the first central portion, the second central portion, the third central portion, the fourth central portion, and the fifth central portion, the first base opening and the plurality of first base portion through holes are formed in the base portion. And a second base opening and a plurality of second base through holes can be formed.

  Furthermore, by laminating the plurality of first extension portions, the plurality of second extension portions, the plurality of third extension portions, the plurality of fourth extension portions, and the plurality of fifth extension portions, the respective electrodes can be obtained. The legs may be formed with a first leg opening and a first leg through hole, and a second leg opening and a second leg through hole.

  Therefore, in this manufacturing method, it is possible to easily manufacture a biological information measuring electrode in which the base portion and the plurality of electrode legs are integrated. In addition, since the connection portion between each of the plurality of electrode legs and the base portion does not have a bonding surface that crosses the flow direction in each of the first channel system and the second channel system, It is hard to get shut.

In the above manufacturing method, the first projecting member having the first hollow portion inside is prepared, and the first projecting member is connected to the intermediate member to extend from the base portion in the opposite direction to the first direction side. You may comprise the 1st connection process of forming the said 1st projection part.
The first projection member is provided with a first cavity opening and a first connection opening that open to the outside.
In the first connection step, the first projection member is disposed such that the first cavity opening is open to the outside of the base unit and the first connection opening is opposed to the first base opening, and The first projection member is connected to communicate with the first base portion through hole.

According to such a configuration, since the first connecting step is provided, the first protrusion having the first cavity opening can be easily manufactured. For this reason, the conductive fluid is sent from the first cavity opening provided in the first projection to the first channel system, or suctioned from the first channel system via the first cavity opening. Can.
In addition, the first projection is provided on the opposite side to the side facing the living body (the first direction side), so that the conductive fluid can be supplied into the flow path of the first flow path system or the first flow path It becomes easy to supply the conductive fluid from within the flow path of the system. For this reason, even if backflow from the flow path side occurs, for example, the living body is unlikely to be affected.

In the above manufacturing method, a second projection member having a second cavity inside is prepared, and the second projection member is connected to the intermediate member to form a second projection extending from the base portion. A connection step may be provided.
The second protrusion member is provided with a second cavity opening and a second connection opening that open to the outside.
In the second connection step, the second projection member is disposed such that the second cavity opening is open to the outside of the base unit and the second connection opening is opposed to the second base opening, and The second projecting member is connected to communicate with the second base portion through hole.

  According to such a configuration, since the second connecting step is provided, the second protrusion having the second cavity opening can be easily manufactured. Therefore, the conductive fluid is sent from the second cavity opening provided in the second projection to the second channel system, or suctioned from the second channel system via the second cavity opening. Can.

In the above manufacturing method, the sixth member, the seventh member, the eighth member, the ninth member, and the tenth member, which are plate-like members, may be prepared.
The sixth member has a sixth central portion having a sixth member first through hole and a sixth member second through hole penetrating the base, and a plurality of sixth extending portions extending from the sixth central portion. Have.
The seventh member extends from a seventh central portion having a seventh cavity through hole corresponding to the sixth member first through hole and a seventh member through hole corresponding to the sixth member second through hole, and a seventh central portion And a plurality of seventh extending portions extending out.
The seventh central portion is provided with a plurality of seventh flow passage holes continuous with the seventh hollow hole, and the seventh extension portion is for the seventh electrode leg continuous with the seventh flow passage hole. A hole is provided.
The eighth member has an eighth central portion corresponding to the sixth central portion and the seventh central portion, and a plurality of eighth extending portions extending from the eighth central portion.
The eighth central portion is provided with an eighth member first through hole corresponding to the seventh member through hole, and on the extension end side of the eighth extension portion, each of the seventh electrode leg holes is provided. A corresponding eighth member second through hole is provided.
The ninth member has a ninth central portion having a ninth cavity hole corresponding to the eighth member first through hole, and a plurality of ninth extending portions extending from the ninth central portion.
The ninth central portion is provided with a plurality of ninth channel holes connected to the ninth cavity hole.
The ninth extending portion is provided with a ninth electrode leg hole continuing to the ninth flow passage hole, and an extending end portion side of the ninth extending portion is formed of an eighth member second through hole. A ninth member through hole corresponding to each is provided.
The tenth member has a tenth central portion corresponding to the eighth central portion and the ninth central portion, and a plurality of tenth extending portions extending from the tenth central portion.
A tenth member first electrode leg hole corresponding to each of the ninth member through holes is provided on the extension end side of the tenth extension portion, and a tenth corresponding to each of the ninth electrode leg holes A member second electrode leg hole is provided.

  In the laminating step, the sixth member, the seventh member, the eighth member, the ninth member, and the tenth member are stacked and joined in this order. Thus, the base portion is formed by the lamination of the sixth central portion, the seventh central portion, the eighth central portion, the ninth central portion and the tenth central portion, and the sixth extension portion, the seventh extension portion, A plurality of electrode legs are formed by stacking the eighth extending portion, the ninth extending portion, and the tenth extending portion.

  In the laminating step, one side of the sixth member first through hole is made the first base opening, and one side of the tenth member first electrode leg hole is made the first leg opening, and the sixth member second through hole And one side of the tenth member second electrode leg hole as the second leg opening, and the sixth member first through hole and the seventh cavity hole are made continuous, and the seventh electrode The leg hole and the eighth member second through hole are continued, the eighth member second through hole and the ninth member through hole are continued, and the ninth member through hole and the tenth member first electrode leg hole are formed. The first flow path system is formed continuously from the sixth member first through hole to the tenth member first electrode leg hole.

In the laminating step, the sixth member second through hole and the seventh member through hole are continued, and the seventh member through hole and the eighth member first through hole are continued, and the eighth member first through hole and The ninth cavity hole is made continuous, and the ninth electrode leg hole and the tenth member second electrode leg hole are made continuous, and the second member is extended from the sixth member second through hole to the tenth member second electrode leg hole Including forming a channel system.
The bending step includes bending each of the plurality of electrode legs on the opposite side to the side on which the sixth member first through hole and the sixth member second through hole are formed.

  According to such a configuration, in the stacking step, the sixth member, the seventh member, the eighth member, the ninth member, and the tenth member are stacked and joined in this order to form the first flow path system and the second flow path. A base portion in which a route system is formed and a plurality of electrode legs are formed.

Further, in the bending step, the plurality of electrode legs are extended from the base portion so that the tips thereof face the first direction side which is one of the base portions.
That is, by laminating the sixth central portion, the seventh central portion, the eighth central portion, the ninth central portion and the tenth central portion, the first base opening and the plurality of first base portion through holes are formed in the base portion. And a second base opening and a plurality of second base through holes can be formed. The first base opening and the second base opening can be formed on one side of the base portion.

  In the above manufacturing method, a base member is prepared by preparing a third projection member having a second cavity which is partitioned from the first cavity and the first cavity, and connecting the third projection to the intermediate member. And a third connecting step of forming a third protrusion extending in the direction opposite to the first direction.

The third projecting member has a first cavity opening and a first connection opening that open to the outside, and has a second cavity opening and a second connection opening that opens to the outside.
In the third connection step, the first cavity opening and the second cavity opening are opened to the outside of the base, the first connection opening faces the sixth member first through hole, and the second connection opening is the sixth The third projection member is disposed to face the member second through hole, and the first hollow portion communicates with the first base portion through hole, and the second hollow portion and the second base portion through hole The third projecting member is connected so as to communicate with the third projecting member.

According to such a configuration, since the third connecting step is provided, it is possible to easily manufacture the third projection having the first cavity opening and the second cavity opening. Therefore, the conductive fluid is sent from the first cavity opening provided in the third projection to the first channel system, or suctioned from the first channel system via the first cavity opening. Can.
Furthermore, the conductive fluid can be sent from the second cavity opening provided in the third projection to the second flow path system, or suctioned from the second flow path system through the second cavity opening. it can.

In the said manufacturing method, at least one of the said plate-shaped members may be a metal plate.
According to such a configuration, the biological information measuring electrode can be easily manufactured by metal working (pressing, etching, etc.) of the metal plate.

In the above manufacturing method, at least one of the plate members may be formed of a conductive prepreg or a non-woven prepreg.
According to such a configuration, the biological information measuring electrode can be easily manufactured by molding using a prepreg or a non-woven prepreg.

  One aspect of the present invention includes a base portion, and a plurality of electrode legs extended from the base portion so that the tip end faces the first direction side, which is one of the base portions, and the base portion is provided A plurality of first base body through holes having a first base opening and a plurality of second base body through holes having a second base opening are provided independently of each other, and each of the plurality of electrode legs is provided The first leg through hole having the first leg opening on the tip end side and the second leg through hole having the second leg opening on the tip end side are independently provided, A first channel system including a plurality of first base body through holes and a plurality of first leg through holes; a plurality of second base body through holes and a plurality of second leg through holes; It is a manufacturing method of the electrode for biological information measurement with which the 2nd channel system different from 1 channel system was constituted.

This manufacturing method includes a plate member laminating step of laminating a plurality of plate members constituting the base portion to form a laminated structure, and a leg connecting step of connecting a plurality of electrode legs to the laminated structure.
In the plate member laminating step, a part of the first channel system and a part of the second channel system are formed in the laminated structure by laminating the plurality of plate members.

  According to such a configuration, the plurality of plate members are stacked, and the leg connection step of connecting the plurality of electrode legs to the laminated structure formed in the lamination step is performed. A first flow path system including a first base portion through hole and a plurality of first leg through holes, and a second flow including a plurality of second base portion through holes and a plurality of second leg through holes The biological information measuring electrode having the channel system can be easily manufactured.

In the above manufacturing method, a first plate member, a second plate member, a third plate member, a fourth plate member, a fifth plate member, and the plurality of electrode legs, which are plate members, may be prepared.
The first plate member has a first plate member through hole penetrating the base.
The second plate member has a second cavity hole corresponding to the first plate member through hole, and has a plurality of second flow passage holes connected to the second cavity hole.
The third plate member has a third plate member through hole corresponding to each of the second flow passage holes.
The fourth plate member has a plurality of fourth plate member through holes, and also has a fourth cavity hole and a plurality of fourth passage holes connected to the fourth cavity hole.
The fifth plate member has a fifth plate member first through hole penetrating the base material, and each of a fifth plate member second through hole and a fourth flow passage hole corresponding to each of the fourth plate member through holes. And a third through hole corresponding to the fifth plate member.
Each of the plurality of electrode legs has a first leg through hole having on both ends a first leg opening at the tip end and a first leg opening provided at the other end, and a second leg at the tip end And a second leg through hole having on both ends a second leg opening provided at the opening and the other end.

In the plate member laminating step, the first plate member, the second plate member, the third plate member, the fourth plate member, and the fifth plate member are stacked in this order and joined to form the base portion.
In the plate member laminating step, one side of the first plate member through hole is set as the first base opening, and one side of the fifth plate member first through hole is set as the second base opening. The second cavity hole is made to be continuous, the second channel hole and the third plate member through hole are made to be continuous, the third plate member through hole and the fourth plate member through hole are made to be continuous, and the fourth plate member is made to penetrate And forming a part of a first flow path system from the first base opening to the fifth plate member third through hole by connecting the hole and the fifth plate member third through hole continuously.

  In the plate member laminating step, the fifth plate member first through hole and the fourth cavity hole are made to be continuous, and the fourth flow passage hole and the fifth plate member second through hole are made to be continuous, and the fifth plate Forming a part of a second flow path system from the member first through hole to the fifth plate member second through hole;

  The leg connecting step makes the fifth plate member second through hole of the fifth plate member and the first leg opening of the electrode leg opposite to each other, and the fifth plate member third through hole of the fifth plate member and the third through hole of the electrode leg The method further includes connecting each of the plurality of electrode legs to the surface on the first direction side of the fifth plate member, with the two-leg openings facing each other.

In the leg connecting step, each fifth plate member second through hole and each first leg through hole are made continuous, and a first flow path system from the first base opening to the first leg opening is formed. Including forming.
In the leg connecting step, each fifth plate member third through hole and each second leg through hole are made continuous, and a second channel system from the second base opening to the second leg opening is formed. Including forming.

  According to such a configuration, in the plate member laminating step, the first plate member, the second plate member, the third plate member, the fourth plate member, and the fifth plate member are stacked and joined to each other. A base having a cavity, a second cavity, a plurality of first base through holes, and a plurality of second base through holes can be formed. Further, in the leg connecting step, a plurality of first base portion through holes and a plurality of first leg portion through holes are provided by connecting the plurality of electrode leg members to the first direction side of the base portion. Manufactures electrodes for biological information measurement, which include one channel system, a second channel system including a plurality of second base body through holes and a plurality of second leg through holes, and two channels of independent systems. can do.

In the above manufacturing method, the sixth plate member, the seventh plate member, the eighth plate member, the ninth plate member, the tenth plate member, and the plurality of electrode legs, which are plate members, may be prepared.
The sixth plate member has a sixth plate member first through hole and a sixth plate member second through hole which penetrate the base material.
The seventh plate member has a seventh cavity hole corresponding to the sixth plate member first through hole and a seventh plate member through hole corresponding to the sixth plate member second through hole, and the seventh cavity hole A plurality of continuous seventh channel holes are provided.
The eighth plate member has an eighth plate member first through hole corresponding to each of the seventh flow passage holes, and also has an eighth plate member second through hole corresponding to the seventh plate member through hole.
The ninth plate member has a ninth plate member through hole corresponding to each of the eighth plate member first through holes and a ninth cavity hole corresponding to the eighth plate member second through hole. It has a plurality of ninth channel holes connected to the holes.
The tenth plate member has a tenth plate member first connection hole corresponding to each of the ninth plate member through holes, and has a tenth plate member second connection hole corresponding to each of the ninth flow passage holes. .
Each of the plurality of electrode legs has a first leg through hole having on both ends a first leg opening at the tip end and a first leg opening provided at the other end, and a second leg at the tip end And a second leg through hole having on both ends a second leg opening provided at the opening and the other end.
In the plate member laminating step, the sixth plate member, the seventh plate member, the eighth plate member, the ninth plate member, and the tenth plate member are stacked in this order and joined to form a base portion.
In the plate member laminating step, one side of the sixth plate member first through hole is set as a first base opening, and one side of the sixth plate member through hole is set as a second base opening.
In the plate member laminating step, the sixth plate member first through hole and the seventh cavity hole are continued, and the seventh passage hole and the eighth plate member first through hole are continued, and the eighth plate member first The first through hole and the ninth plate member through hole are made continuous, the ninth plate member through hole and the tenth plate member first connecting hole are made continuous, and the first base opening to the tenth plate member first connecting hole Form part of a first flow path system.
In the plate member laminating step, the sixth plate member second through hole and the seventh plate member through hole are continued, and the seventh plate member through hole and the eighth plate member second through hole are continued, and an eighth plate member The second through hole and the ninth cavity hole are made to be continuous, the ninth flow passage hole and the tenth plate member second connection hole are made to be continuous, and the second base opening to the tenth plate member second connection hole Form a part of the second flow path system.
In the leg connecting step, the tenth plate member first connection hole of the tenth plate member and the first leg opening of the electrode leg are opposed, and the tenth plate member second connection hole of the tenth plate member and the first electrode hole Each of the plurality of electrode legs is connected to the surface on the first direction side of the tenth plate member by opposing the two-leg openings.
In the leg connecting step, each tenth plate member first connection hole and each first leg through hole are made continuous to form a first channel system from the first base opening to the first leg opening. .
In the leg connecting step, each of the tenth plate member second connection holes and each of the second leg through holes are made continuous to form a second flow path system extending from the second base opening to the second leg opening. .

  According to such a configuration, the plurality of plate members are stacked, and the leg connection step of connecting the plurality of electrode legs to the laminated structure formed in the lamination step is performed. A first flow path system including a first base portion through hole and a plurality of first leg through holes, and a second flow including a plurality of second base portion through holes and a plurality of second leg through holes The biological information measuring electrode having the channel system can be easily manufactured. Further, the first base portion opening and the second base portion opening are provided on one side of the base portion, and it becomes possible to easily access different first flow channel systems and second flow channel systems.

In the above manufacturing method, an eleventh plate member, a twelfth plate member, a thirteenth plate member, and a plurality of electrode legs, which are plate members, may be prepared.
The eleventh plate member has an eleventh plate member first through hole and an eleventh plate member second through hole penetrating the base.
On the surface on the first direction side of the eleventh plate member, a plurality of first groove portions formed in a depressed shape are provided with one end continuously in the eleventh plate member first through hole.
The twelfth plate member has a twelfth plate member first through hole corresponding to each of the first groove portions, and has a twelfth member second through hole corresponding to the eleventh plate member second through hole.
The thirteenth plate member has hollow groove for hollow shape corresponding to the thirteenth plate member first connection hole corresponding to each of the twelfth plate member first through holes and the twelfth plate member second through hole.
On the surface of the thirteenth plate member opposite to the first direction side, a plurality of second groove portions formed in a hollow shape are provided at one end thereof in the hollow groove.
A second connection hole continuous with the second groove portion is provided on the surface on the first direction side of the thirteenth plate member.
Each of the plurality of electrode legs has a first leg through hole having on both ends a first leg opening at the tip end and a first leg opening provided at the other end, and a second leg at the tip end And a second leg through hole having on both ends a second leg opening provided at the opening and the other end.

In the plate member laminating step, the surface of the eleventh plate member on which the plurality of first groove portions are formed and the surface on which the plurality of second groove portions of the thirteenth plate member are formed are opposed to each other. The base portion is formed by sandwiching and bonding.
Further, in the plate member laminating step, one side of the eleventh plate member first through hole is set as a first base opening, and one side of the eleventh plate member second through hole is set as a second base opening.
Further, in the plate member laminating step, the first groove portion and the twelfth plate member first through hole are continued, and the twelfth plate member first through hole and the thirteenth plate member first connection hole are continued, and the first base Forming a part of the first flow path system from the opening to the thirteenth plate member first connection hole;

  In the plate member laminating step, the eleventh plate second through hole and the twelfth plate second through hole are made continuous, and the twelfth plate second through hole and the hollow groove are made continuous, and the second base Forming a part of a second flow path system from the opening to the cavity groove;

In the leg connecting step, the thirteenth plate member first connection hole of the thirteenth plate member and the first leg opening of the electrode leg are opposed, and the cavity groove of the thirteenth plate member and the second leg opening of the electrode leg are The plurality of electrode legs are connected to the surface on the first direction side of the thirteenth plate member so as to face each other, and the respective first connection holes and the respective first leg through holes are made continuous, and the first Forming a first flow path system from the base opening to the first leg opening;
In the leg connecting step, the respective hollow grooves and the respective second leg through holes are made continuous to form a second flow path system from the second base opening to the second leg opening. .

  According to such a configuration, in the plate member laminating step, by laminating and joining the sixth plate member, the seventh plate member and the eighth plate member, a part of each of the two flow paths is internally provided. The provided base portion can be formed.

  Further, in the leg connecting step, a plurality of first base portion through holes and a plurality of first leg portion through holes are provided by connecting the plurality of electrode leg members to the first direction side of the base portion. Manufactures electrodes for biological information measurement, which include one channel system, a second channel system including a plurality of second base body through holes and a plurality of second leg through holes, and two channels of independent systems. can do.

  In the above-described manufacturing method, a base is provided by preparing a third projecting member having a first cavity, a first cavity, and a second cavity partitioned from the inside, and connecting the third projecting member to the laminated structure. The method may further include a third connecting step of forming a third protrusion extending from the portion in the opposite direction to the first direction.

The third projecting member has a first cavity opening and a first connection opening that open to the outside, and has a second cavity opening and a second connection opening that opens to the outside.
In the third connection step, the first cavity opening and the second cavity opening are open to the outside of the base, and the first connection opening faces the first base opening, and the second connection opening faces the second base opening As described above, the third projection member is disposed, and the first cavity portion and the first base portion through hole are communicated with each other, and the second cavity portion and the second base portion through hole are communicated with each other. 3 Connect the projecting members.

  According to such a configuration, since the third connecting step is provided, it is possible to easily manufacture the third projection having the first cavity opening and the second cavity opening. Therefore, the conductive fluid is sent from the first cavity opening provided in the third projection to the first channel system, or suctioned from the first channel system via the first cavity opening. Can. Furthermore, the conductive fluid can be sent from the second cavity opening provided in the third projection to the second flow path system, or suctioned from the second flow path system through the second cavity opening. it can.

In the above manufacturing method, at least one of the plate members may be formed of a conductive carbon material.
According to such a configuration, the biological information measuring electrode can be easily manufactured by molding using a carbon material.

  According to the present invention, an electrode in contact with a living body has a simple structure, can supply an appropriate amount of fluid, and can accurately suction the supplied fluid, a biological information measuring device, a biological information measuring device, and a biological information measuring electrode It becomes possible to provide a manufacturing method of

(A) And (b) is a schematic diagram which illustrates the electrode for biological information measurement which concerns on 1st Embodiment. (A) And (b) is a schematic cross section which illustrates the electrode for biological information measurement which concerns on 1st Embodiment. (A) And (b) is a schematic cross section which illustrates the electrode for biological information measurement which concerns on 1st Embodiment. (A)-(e) is a schematic diagram explaining an example of the manufacturing method of the electrode for measurement. (A) And (b) is a schematic diagram explaining an example of the manufacturing method of the electrode for measurement. (A) And (b) is a schematic diagram which illustrates the electrode for biological information measurement which concerns on 2nd Embodiment. (A) And (b) is a schematic cross section which illustrates the electrode for biological information measurement which concerns on 2nd Embodiment. (A) And (b) is a schematic diagram explaining an example of the manufacturing method of the electrode for measurement. (A) And (b) is a schematic diagram which shows the other structural example of 2nd Embodiment. (A) And (b) is a schematic diagram which illustrates the biometric information acquisition apparatus which concerns on 3rd Embodiment. (A) And (b) is a schematic cross section which illustrates the electrode for biological information measurement which concerns on 3rd Embodiment. (A)-(e) is a schematic diagram explaining an example of the manufacturing method of the electrode for measurement. (A) And (b) is a schematic diagram explaining an example of the manufacturing method of the electrode for measurement. (A) And (b) is a schematic diagram which illustrates the biometric information acquisition apparatus which concerns on 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the same members are denoted by the same reference numerals, and the description of the members once described will be omitted as appropriate.

First Embodiment: Electrode Structure
FIGS. 1A and 1B are schematic views illustrating the biological information measurement electrode according to the first embodiment. A perspective view is shown in FIG. 1 (a) and a plan view is shown in FIG. 1 (b). FIGS. 2A and 2B are schematic cross-sectional views illustrating the biological information measurement electrode according to the first embodiment. FIG. 2A shows a cross-sectional view taken along the line A-A shown in FIG. 1B, and FIG. 2B shows a cross-sectional view taken along the line B-B shown in FIG. FIGS. 3A and 3B are schematic cross-sectional views illustrating the biological information measurement electrode according to the first embodiment. FIG. 3A shows a cross-sectional view taken along the line C-C shown in FIG. 2A, and FIG. 3B shows a cross-sectional view taken along the line D-D shown in FIG.

  The biological information measurement electrode (hereinafter, also simply referred to as “measurement electrode”) 1A according to the present embodiment includes a base portion 10 and a plurality of electrode legs 20. The measurement electrode 1A is used in contact with a living body (for example, scalp) to obtain conduction and measure biological information such as an electroencephalogram.

  The base 10 is provided, for example, in a circular shape. On the outer periphery of the base 10, a plurality of electrode legs 20 are provided along the outer periphery of the base 10 at equal intervals, for example. Each electrode leg 20 extends from the base portion 10 so that the tip 20a faces the first direction D1 which is one side of the base portion 10. In the present embodiment, a total of eight electrode legs 20 are provided on the outer periphery of the base portion 10 at 45 ° intervals. The number of electrode legs 20 is not limited. At least one tip 20a of the plurality of electrode legs 20 can be in contact with a living body.

  Each of the plurality of electrode legs 20 has a first leg through hole 210 having a first leg opening 210 h on the tip end 20 a side, and a second leg having a second leg opening 220 h on the tip end 20 a side A portion through hole 220 is provided. In the base portion 10, the first base opening 10h is provided on the side opposite to the side on which the electrode leg 20 is provided, and the second base opening 12h is provided on the side where the electrode leg 20 is provided. Further, in the base portion 10, a plurality of first base portion through holes 110 communicating with the first base opening 10h are provided, and a plurality of second base portion through holes 120 communicating with the second base opening 12h Provided. The first base portion through hole 110 and the second base portion through hole 120 are independent of each other.

  The plurality of first base portion through holes 110 and the plurality of second base portion through holes 120 radially extend from the center of the base portion 10. Each of the first base portion through holes 110 is provided linearly from the center of the base portion 10 toward the position of the electrode leg 20, and communicates with the first leg through hole 210 of each electrode leg 20. ing. Further, each of the second base portion through holes 120 is provided linearly from the center of the base portion 10 toward the position of the electrode leg 20, and the second leg portion through hole 220 of each electrode leg 20 It is in communication.

  Thus, one of the plurality of first base portion through holes 110 from the first base opening 10 h, one of the plurality of first leg portion through holes 210 through the one first base portion through hole 110, A plurality of first flow path systems leading to a first leg opening 210 h of one first leg through hole 210 is provided corresponding to the electrode leg 20 having the first leg through hole 210. Furthermore, one of the plurality of second base portion through holes 120 from the second base opening 12 h, one of the plurality of second leg portion through holes 220 through one second base portion through hole 120, A plurality of second flow path systems extending to the second leg openings 220 h of the two second leg through holes 220 are provided corresponding to the electrode legs 20 having the second leg through holes 220.

  In the measurement electrode 1A having such a configuration, two flow paths (first flow path system and second flow path system) having different systems from each other are formed in the electrode leg 20, respectively. The work can be performed independently and independently from the openings (the first base opening 10 h and the second base opening 12 h). For example, performing both operations of supplying and sucking conductive fluid (conductive fluid) such as electrolyte solution or conductive gel separately, or individually controlling the same or different two conductive fluids Can also be supplied.

  In addition, since the plurality of first base portion through holes 110 are formed in a straight line, the conductive fluid that has flowed to the first base portion through holes 110 flows in a straight line. Thereby, the conductive fluid can be smoothly sent to each electrode leg 20, and the conductive fluid can be smoothly sucked from each electrode leg 20. Similarly, since each of the plurality of second base portion through holes 120 is formed in a straight line, the conductive fluid that has flowed into the second base portion through holes 120 flows in a straight line. Thereby, the conductive fluid can be smoothly sent to each electrode leg 20, and the conductive fluid can be smoothly sucked from each electrode leg 20.

  Further, in the present embodiment, the plurality of electrode legs 20 are integrally formed with the base portion 10. Specifically, the joint portion (first joint portion) connecting the first base portion through hole 110 and the first leg portion through hole 210 does not have a seam, and the second base portion through hole There is no seam at the joint (second joint) connecting the second leg 120 and the second leg through hole 220. As a result, in the connection portion where each of the plurality of electrode legs 20 and the base portion 10 are connected, the factor that impedes the flow of the conductive fluid is reduced, and the smooth flow of the conductive fluid is realized. Can.

  The measurement electrode 1A may further include a first protrusion 30 extending in the direction opposite to the first direction D1 side of the base portion 10. The first protrusion 30 is, for example, a cylindrical member, and a first hollow portion 310 communicating with the first base opening 10 h is provided at the center of the member. The first cavity portion 310 has a first cavity opening 310 h opening to the outside of the base portion.

  By providing such a first projection 30, the conductive fluid is supplied into the flow channel of the first flow channel system, or the conductive fluid is sucked from the flow channel of the first flow channel system. Becomes easy to do. For this reason, even if backflow from the flow path side occurs, for example, the living body is unlikely to be affected.

  In addition, the measurement electrode 1A may further include a second protrusion 32 extended in the first direction D1 side of the base portion 10. The second protrusion 32 is, for example, a cylindrical member, and a second hollow portion 320 communicating with the second base opening 12 h is provided at the center of the member. The second hollow portion 320 has a second hollow portion opening 320 h opening to the outside of the base portion.

  By providing such a second projection 32, the conductive fluid is supplied into the flow channel of the second flow channel system, or the conductive fluid is sucked from the flow channel of the second flow channel system. Becomes easy to do. For this reason, even if backflow from the flow path side occurs, for example, the living body is unlikely to be affected.

  The measurement electrode 1A according to the present embodiment does not have a tank for storing the conductive fluid inside. For this reason, the conductive fluid supplied from the outside is sent, for example, from the first base opening 10 h (the first cavity opening 310 h when the first projection 30 is provided) to the inner supply flow path. , And is discharged from the first leg through hole 210 of each electrode leg 20 without being stored in a tank or the like. Since the tank for storing the conductive fluid is not provided, the conductive fluid does not leak even if the measuring electrode 1A is tilted or turned upside down. In addition, since the tank is not provided, the structure can be simplified and the weight can be reduced.

  Here, it is preferable that the first protrusion 30 be disposed at the central portion of the base 10. Thereby, the conductive fluid is uniformly supplied to the plurality of electrode legs 20 via the first flow path system, or the conductive fluid is uniformly suctioned from each of the plurality of electrode legs 20. Can.

  Similarly, it is preferable that the second protrusion 32 be disposed in the central portion of the base portion 10. Thereby, the conductive fluid is uniformly supplied to the plurality of electrode legs 20 via the second flow path system, or the conductive fluid is uniformly suctioned from each of the plurality of electrode legs 20. Can.

  Moreover, each of the 1st projection part 30, the 2nd projection part 32, and base part 10 may have conductivity. Thereby, each of the 1st projection part 30 and the 2nd projection part 32 can be used as an electrode terminal. That is, the electrical connection between each electrode leg 20 and the external device can be obtained by the wiring connected to the first protrusion 30 and the second protrusion 32.

  In addition, each of the plurality of electrode legs 20 may contain conductive carbon or may contain conductive metal. When each electrode leg 20 contains carbon having conductivity, this carbon material can ensure electrical conduction with the living body. Further, by including the carbon material, it is possible to prevent the subject from feeling discomfort when the electrode leg 20 contacts the subject. In addition, since each electrode leg 20 contains a conductive metal, the metal can obtain electrical continuity with the living body, and the electrode leg 20 can be easily formed by metal processing. Can.

First Embodiment: Manufacturing Method
Next, a method of manufacturing the measurement electrode 1A according to the present embodiment will be described.
FIG. 4A to FIG. 5B are schematic views illustrating an example of a method of manufacturing the measurement electrode.
First, as shown in FIGS. 4A to 4E, the first member 101, the second member 102, the third member 103, the fourth member 104, and the fifth member 105, which are plate-like members, are prepared.

  As shown in FIG. 4A, the first member 101 is provided with a circular first central portion 1011 and a plurality of first extended portions extending outward from the peripheral edge of the first central portion 1011. And 1012. A first member through hole 1011 h is provided at a central portion of the first central portion 1011.

  As shown in FIG. 4B, the second member 102 is provided with a circular second central portion 1021 and a plurality of second extended portions extending outward from the peripheral edge of the second central portion 1021. And 1022. The second member 102 is provided with a second slit 1023 extending from the central portion of the second central portion 1021 to the respective second extending portions 1022. The second slit 1023 is located between the second cavity hole 1023A located in the second central portion 1021 and the second central portion 1021 from the second central portion 1021 and a second flow continuous with the second cavity hole 1023A. It comprises a passage hole 1023B and a second electrode leg hole 1023C which is located at the tip of each second extending portion 1022 and is continuous with the second passage hole 1023B.

  As shown in FIG. 4C, the third member 103 is provided with a circular third central portion 1031 and a plurality of third extended portions extending outward from the peripheral edge of the third central portion 1031. And 1032. Third member through holes 1032 h are provided at the tip end portions of the third extending portions 1032.

  As shown in FIG. 4D, the fourth member 104 is provided with a circular fourth central portion 1041 and a plurality of fourth extended portions 1042 extending outward from the periphery of the fourth central portion 1041. And The fourth member 104 is provided with a fourth slit 1043 extending from the central portion of the fourth central portion 1041 to the fourth extending portions 1042. The fourth slit 1043 is provided with a fourth cavity hole 1043A located in the fourth central portion 1041, and a fourth flow located from the fourth central portion 1041 to the fourth extension portions 1042 and continuing to the fourth cavity hole 1043A. It consists of a passage hole 1043B and a fourth electrode leg hole 1043C located at the tip of each fourth extending portion 1042 and continuous with the fourth passage hole 1043B. Further, fourth member through holes 1042 h are provided at the tip end portions of the fourth extension portions 1042.

  As shown in FIG. 4E, the fifth member 105 is provided with a fifth central portion 1051 of a circular shape and a plurality of fifth extended portions extending outward from the peripheral edge of the fifth central portion 1051. And 1052. At a central portion of the fifth central portion 1051, a fifth member first through hole 1051h corresponding to the fourth cavity hole 1043A is provided. In addition, the fifth member second through hole 1052h1 corresponding to each of the fourth member through holes 1042h and the fourth electrode leg hole 1043C are provided at the tip end portion (the extending end portion side) of each fifth extending portion 1052 A fifth member third through hole 1052 h 2 corresponding to each is provided in parallel.

  In order to constitute such a first member 101, a second member 102, a third member 103, a fourth member 104 and a fifth member 105, a metal plate may be formed by etching or punching, or a prepreg or You may shape | mold by a nonwoven fabric prepreg.

  Next, as shown in FIG. 5A, the first member 101, the second member 102, the third member 103, the fourth member 104, and the fifth member 105 are stacked in this order to form an intermediate member 1000 (see FIG. Stacking process). When the 1st member 101, the 2nd member 102, the 3rd member 103, the 4th member 104, and the 5th member 105 are fabricated with a metal plate, each member is pasted together, for example by diffusion bonding. When the first member 101, the second member 102, the third member 103, the fourth member 104, and the fifth member 105 are molded of a prepreg or a nonwoven fabric prepreg, the respective members are bonded together by thermocompression bonding and then cured.

  The second slit 1023 provided in the second member 102 by the superposition of the first member 101, the second member 102, the third member 103, the fourth member 104 and the fifth member 105 is the first member 101 and the third The space enclosed by the member 103 is formed, and the fourth slit 1043 provided in the fourth member 104 is the space surrounded by the third member 103 and the fifth member 105 at the top and the bottom.

  The first member through hole 1011 h of the first member 101 communicates with the space formed by the second slit 1023. In addition, a state in which each of the portions extending to the legs of the space formed by the second slits 1023 communicates with the third member through holes 1032 h provided in the third extending portions 1032 of the third member 103. become. Furthermore, the third member through holes 1032 h and the fourth member through holes 1042 h provided in the fourth extending portions 1042 of the fourth member 104 communicate with one another, and the fourth member through holes 1042 h and the fifth members 105 The fifth member second through hole 1052 h 1 provided in the five extension portion 1052 is in communication with each other.

  The fifth member first through hole 1051 h of the fifth member 105 communicates with the space formed by the fourth slit 1043. Further, in the space formed by the fourth slits 1043, the portions extending to the respective legs communicate with the fifth member third through holes 1052h2 provided in the fifth extending portions 1052 of the fifth member 105. It will be in the state of

  Next, as shown in FIG. 5 (b), each leg (each of the plurality of electrode legs 20) of the intermediate member 1000 is one (a fifth member second through hole 1052 h 1 and a fifth member third through hole 1052 h 2 (Bending process) to the formed side). The base portion 10 and the plurality of electrode legs 20 are constituted by the bending (bending), and the measurement electrode 1A is completed. Then, the plurality of electrode legs 20 are provided along the outer peripheral portion of the base portion 10.

  By this bending, the space formed by the second slits 1023 becomes a first flow path system extending from the base portion 10 to each electrode leg 20. That is, of the space formed by the second slits 1023, the portion of the base portion 10 becomes the first base portion through hole 110, and the portion extending to each electrode leg 20 becomes the first leg portion through hole 210. In addition, the first member through hole 1011 h provided in the first member 101 becomes the first base opening 10 h. Furthermore, third member through holes 1032 h provided in the third extending portions 1032 of the third member 103, fourth member through holes 1042 h and the fifth provided in the fourth extending portions 1042 of the fourth member 104. The fifth member second through hole 1052 h 1 provided in each fifth extending portion 1052 of the member 105 becomes a first leg opening 210 h.

  Further, a space formed by the fourth slit 1043 is a second flow path system extending from the base portion 10 to each electrode leg 20. That is, of the space formed by the fourth slits 1043, the portion of the base portion 10 becomes the second base portion through hole 120, and the portion extending to each electrode leg 20 becomes the second leg portion through hole 220. The fifth member first through hole 1051 h provided in the fifth member 105 is the second base opening 12 h. Furthermore, the fifth member third through hole 1052 h 2 provided in each fifth extension portion 1052 of the fifth member 105 becomes a second leg opening 220 h.

Next, the first protrusion 30 and the second protrusion 32 are attached as needed. The first protrusion 30 is attached onto the base 10 so that the first cavity 310 of the first protrusion 30 and the first base opening 10 h of the base 10 overlap each other. Specifically, by preparing a first projecting member having a first cavity 310 inside and connecting the first projecting member to the intermediate member 1000, it is opposite to the first direction D1 side from the base 10 It comprises a first connecting step of forming a first projection 30 extended to the direction side. Here, the first protrusion member is provided with a first cavity opening and a first connection opening that are open to the outside. Then, in the first connection step, the first projection member is disposed such that the first cavity opening is open to the outside of the base portion 10 and the first connection opening faces the first base opening 10 h. The first projecting member is connected so that the first cavity 310 and the first base portion through hole 110 communicate with each other.
The second projection 32 is attached under the base 10 so that the second cavity 320 of the second projection 32 and the second base opening 12 h of the base 10 overlap. Specifically, by preparing a second projection member having a second cavity 320 inside and connecting the second projection member to the intermediate member 1000, a second projection 32 extended from the base 10 is provided. Forming a second connecting step to form Here, the second protrusion member is provided with a second cavity opening and a second connection opening that are open to the outside. Then, in the second connection step, the second projection member is disposed such that the second cavity opening is open to the outside of the base portion 10 and the second connection opening faces the second base opening 12 h, The second projecting member is connected so as to communicate the second hollow portion 320 with the second base portion through hole 120.

  A plurality of plate-like members (a first member 101, a second member 102, a third member 103, a fourth member 104, and a fourth member) are configured such that the flow path extends from the base portion 10 to each electrode leg 20 by It can be easily manufactured by the laminating step of laminating the five members 105) and the bending step of bending the intermediate member 1000 formed in the laminating step. In addition, in this manufacturing method, the connection portion between each of the plurality of electrode legs 20 and the base portion 10 does not have a bonding surface that crosses the flow direction in each of the first flow channel system and the second flow channel system. In the stacking step, clogging of the flow path is unlikely to occur.

Second Embodiment Electrode Structure
FIGS. 6A and 6B are schematic views illustrating the biological information measuring electrode according to the second embodiment. A perspective view is shown in FIG. 6 (a) and a plan view is shown in FIG. 6 (b). FIGS. 7A and 7B are schematic cross-sectional views illustrating the biological information measurement electrode according to the second embodiment. FIG. 7A shows a cross-sectional view taken along line E-E shown in FIG. 6B, and FIG. 7B shows a cross-sectional view taken along line F-F shown in FIG.

  The measurement electrode 1B according to the present embodiment is, for example, a base 10 provided in a circular shape, and a plurality of electrodes provided separately from the base 10 and attached to the outer periphery of the base 10 at equal intervals, for example. And a leg 20. Each electrode leg 20 is attached to the base 10 so that the tip 20a is directed to a first direction D1 which is one side of the base 10. Each electrode leg 20 is provided in a columnar shape (for example, a cylindrical shape), and a first leg through hole 210 and a second leg through hole 220 are provided inside. The distal end portion 20 a of the electrode leg 20 is provided with a first leg opening 210 h communicating with the first leg through hole 210 and a second leg opening 220 h communicating with the second leg through hole 220.

  In the base portion 10, a first base opening 10h is provided on the side opposite to the side on which the electrode legs 20 are provided, and a second base opening 12h is provided on the side where the electrode legs 20 are provided. As shown by a two-dot chain line in FIG. 6 and FIG. 7, the base portion 10 may be provided with the first projection 30 and the second projection 32 as in the first embodiment. In the base portion 10, a plurality of first base portion through holes 110 communicating with the first base opening 10h are provided, and a plurality of second base portion through holes 120 communicating with the second base opening 12h are provided. . The first base portion through hole 110 and the second base portion through hole 120 are independent of each other.

  The plurality of first base portion through holes 110 and the plurality of second base portion through holes 120 radially extend from the center of the base portion 10. Each of the first base portion through holes 110 is provided linearly from the center of the base portion 10 toward the position of the electrode leg 20, and communicates with the first leg through hole 210 of each electrode leg 20. ing. Further, each of the second base portion through holes 120 is provided linearly from the center of the base portion 10 toward the position of the electrode leg 20, and the second leg portion through hole 220 of each electrode leg 20 It is in communication.

  Thus, one of the plurality of first base portion through holes 110 from the first base opening 10 h, one of the plurality of first leg portion through holes 210 through the one first base portion through hole 110, A plurality of first flow path systems leading to a first leg opening 210 h of one first leg through hole 210 is provided corresponding to the electrode leg 20 having the first leg through hole 210. Furthermore, one of the plurality of second base portion through holes 120 from the second base opening 12 h, one of the plurality of second leg portion through holes 220 through one second base portion through hole 120, A plurality of second flow path systems extending to the second leg openings 220 h of the two second leg through holes 220 are provided corresponding to the electrode legs 20 having the second leg through holes 220.

Second Embodiment: Manufacturing Method
Next, a method of manufacturing the measurement electrode 1B according to the present embodiment will be described.
FIGS. 8A and 8B are schematic views for explaining an example of a method of manufacturing the measurement electrode.
First, as shown in FIG. 8A, a first plate member 501, a second plate member 502, a third plate member 503, a fourth plate member 504, and a fifth plate member 505, which are plate members, are prepared.

  The first plate member 501 has, for example, a circular base material 5011 and has a first plate member through hole 5011 h penetrating the base material 5011. The second plate member 502 includes, for example, a circular base material 5021 similar to the base material 5011. The base 5021 has a second cavity hole 5021h corresponding to the first plate member through hole 5011h of the first plate member 501, and has a plurality of second channel holes 5022h connected to the second cavity hole 5021h. Have.

  The third plate member 503 includes, for example, a circular base material 5031 similar to the base material 5011 and the base material 5021. The base 5031 has third plate member through holes 5031 h corresponding to the respective second flow path holes 5022 h.

  The fourth plate member 504 includes, for example, a circular base material 5041 similar to the base material 5011, the base material 5021, and the base material 5031. The base material 5041 has a fourth cavity hole 5041 h in the central portion, and has a plurality of fourth channel holes 5042 h continuous with the fourth cavity hole 5041 h. Further, fourth plate member through holes 5043 h are provided side by side with respective tip portions of the plurality of fourth flow path holes 5042 h.

  The fifth plate member 505 includes, for example, a circular base 5051 similar to the base 5011, the base 5021, the base 5031, and the base 5041. A fifth plate member first through hole 5051 h penetrating the base material 5051 is provided at the center of the base material 5051. Further, the base member 5051 is a fifth plate member provided in line with the fifth plate member second through hole 5052 h corresponding to each of the fourth flow passage holes 5042 h and the fifth plate member second through hole 5052 h. And 3 through holes 5053h.

  Then, as shown in FIG. 8B, the prepared first plate member 501, second plate member 502, third plate member 503, fourth plate member 504, and fifth plate member 505 are stacked in this order and stacked. A structure 5000 is formed (stacking step). When the 1st board member 501, the 2nd board member 502, the 3rd board member 503, the 4th board member 504, and the 5th board member 505 are fabricated with a metal plate, each member is pasted together, for example by diffusion bonding. When the 1st board member 501, the 2nd board member 502, the 3rd board member 503, the 4th board member 504, and the 5th board member 505 are fabricated by prepreg or a nonwoven fabric prepreg, each member was stuck together by thermocompression bonding Cure later.

  A plurality of second flow paths provided in the second plate member 502 by overlapping the first plate member 501, the second plate member 502, the third plate member 503, the fourth plate member 504, and the fifth plate member 505 The hole 5022h is a space surrounded by the first plate member 501 and the third plate member 503 at the upper and lower sides, and the fourth flow path hole 5042h provided in the fourth plate member 504 is the third plate member 503 at the upper and lower sides. This space is surrounded by the five plate members 505.

  The first plate member through hole 5011 h of the first plate member 501 communicates with the second cavity hole 5021 h. Further, in the space constituted by the plurality of second flow path holes 5022h, each of the portions extending to the leg portions is in communication with the third plate member through holes 5031h of the third plate member 503. Furthermore, the third plate member through hole 5031 h and the fourth plate member through hole 5043 h provided in the fourth plate member 504 communicate with each other, and the fourth plate member through hole 5043 h and the fifth plate member fifth of the fifth plate member 505 The third through holes 5053h communicate with each other.

  The fifth plate member first through hole 5051 h of the fifth plate member 505 communicates with the space (fourth cavity hole 5041 h) formed by the fourth flow passage hole 5042 h. Also, in a state in which each of the portions extending to each leg in the space constituted by the fourth flow path holes 5042 h is in communication with the fifth plate member second through hole 5052 h provided in the fifth plate member 505. Become.

  Next, a plurality of electrode legs 20 are attached to one side of the laminated structure 5000 (a leg connection step). Each electrode leg 20 is provided in a columnar shape (for example, a cylindrical shape), and a first leg through hole 210 and a second leg through hole 220 are provided inside. A first leg opening is provided on the tip end side of the first leg through hole 210, and a first leg opening is provided on the other end. In addition, a second leg opening is provided on the tip end side of the second leg through hole 220, and a second leg opening is provided on the other end. The first leg opening of the first leg through hole 210 and the fifth plate member second through hole 5052 h of the fifth plate member 505 are aligned, and the second leg opening of the second leg through hole 220 and the second leg through hole 220 The electrode leg 20 is attached to the laminated structure 5000 so that the fifth plate member third through hole 5053 h of the fifth plate member 505 is aligned. When the laminated structure 5000 and the electrode leg 20 are made of metal, for example, they are joined by diffusion bonding. When the electrode leg 20 is formed of a prepreg or a non-woven prepreg, the electrode leg 20 is bonded with an adhesive and then cured.

  A plurality of electrode legs 20 are connected to the laminated structure 5000 to complete the measurement electrode 1B. Further, although not shown in FIG. 8, the first protrusion 30 and the second protrusion 32 are attached as needed. The first protrusion 30 is placed on the stacked structure 5000 so that the first hollow portion 310 of the first protrusion 30 and the first plate member through hole 5011 h of the first plate member 501 of the stacked structure 5000 overlap with each other. Attached to In this manufacturing method, the laminated structure 5000 is the base portion 10, the space formed by the plurality of second flow path holes 5022h is the first base portion through hole 110, and the first plate member through hole 5011h is the first. The base opening 10h is obtained.

  According to such a manufacturing method, a laminating step of laminating a plurality of plate members (the first plate member 501, the second plate member 502, the third plate member 503, the fourth plate member 504, and the fifth plate member 505) And a plurality of first base portion through holes 110 and a plurality of first leg portion through holes 210 by the leg connecting step of connecting the plurality of electrode legs 20 to the laminated structure 5000 formed in the laminating step. It is possible to easily manufacture a measurement electrode 1B having a first flow path system and a second flow path system including a plurality of second base portion through holes 120 and a plurality of second leg portion through holes 220. it can.

Second Embodiment Another Configuration Example
FIG. 9A and FIG. 9B are schematic views showing another configuration example of the second embodiment.
In the measurement electrode 1B shown in FIG. 9, an electrode leg group 2000 in which a plurality of electrode legs 20 are integrally formed is used. The electrode leg group 2000 is manufactured, for example, by cutting a carbon material or a metal material, or molding using a material containing a carbon material or a metal material.

  In order to manufacture this measurement electrode 1B, as shown in FIG. 9A, the prepared first plate member 501, second plate member 502, third plate member 503, fourth plate member 504 and fifth plate are prepared. The members 505 are stacked in this order to form a stacked structure 5000, and as shown in FIG. 9B, the electrode leg group 2000 is connected to one side of the stacked structure 5000. Further, although not shown in FIG. 9, the first projection 30 is connected to the other side of the laminated structure 5000 as needed, and the second projection 32 is connected to one side of the electrode leg group 2000.

  According to such a configuration, the plurality of electrode legs 20 can be attached collectively, and the alignment of the electrode legs 20 can be performed accurately and easily.

  In the example shown in FIG. 9, a laminated structure 5000 in which the first plate member 501, the second plate member 502, the third plate member 503, the fourth plate member 504, and the fifth plate member 505 are laminated is used. A member having a structure similar to that of the laminated structure 5000 may be an integrally formed product of a carbon material or a metal material. In addition, if the connection surface 2000 a of the electrode leg group 2000 with the stacked structure 5000 is flat and has a surface that can form the space of the fourth flow passage hole 5042 h with the fourth plate member 504, The fourth plate member 504 may be directly connected to the connection surface 2000 a of the electrode leg group 2000 without using the fifth plate member 505.

Third Embodiment: Electrode Structure
FIGS. 10A and 10B are schematic views illustrating the biological information measurement electrode according to the third embodiment. A perspective view is shown in FIG. 10 (a) and a plan view is shown in FIG. 10 (b). FIGS. 11A and 11B are schematic cross-sectional views illustrating the biological information measuring electrode according to the third embodiment. FIG. 11 (a) shows a cross-sectional view taken along the line G-G shown in FIG. 10 (b), and FIG. 11 (b) shows a cross-sectional view taken along the line HH shown in FIG. 10 (b).

  In the measurement electrode 1C according to the present embodiment, the base portion 10 is provided with a first base opening 10h and a second base opening 12h on the side opposite to the side on which the electrode leg 20 is provided. That is, in the measurement electrode 1C, the first base opening 10h and the second base opening 12h are provided on the same side of the surface of the base portion 10, and from the same side of the surface of the base portion 10 A fluid (conductive fluid) having conductivity such as an electrolytic solution or a conductive gel can be supplied to the channel (first channel system and second channel system).

  The measurement electrode 1 </ b> C may further include a third protrusion 33 extending in the opposite direction to the first direction D <b> 1 side of the base 10. The third projection 33 is, for example, a cylindrical member, and is internally divided into a first cavity 310 communicating with the first base opening 10 h and a second cavity 310, and a second opening communicating with the second base opening 12 h. A cavity 320 is provided. The first cavity portion 310 has a first cavity portion opening 310h opened to the outside of the base portion 10, and the second cavity portion 320 has a second cavity portion opening 320h opened to the outside of the base portion 10. There is.

Third Embodiment: Manufacturing Method
Next, a method of manufacturing the measurement electrode 1C according to the present embodiment will be described.
FIG. 12A to FIG. 13B are schematic views illustrating an example of a method of manufacturing the measurement electrode.
First, as shown in FIGS. 12A to 12E, the sixth member 106, the seventh member 107, the eighth member 108, the ninth member 109, and the tenth member 1010, which are plate-like members, are prepared.

  As shown in FIG. 12A, the sixth member 106 is provided with a circular sixth central portion 1061 and a plurality of sixth extended portions extending outward from the peripheral edge of the sixth central portion 1061. And 1062. A sixth member first through hole 1061 h and a sixth member second through hole 1062 h are provided in the central portion of the sixth central portion 1061.

  As shown in FIG. 12B, the seventh member 107 includes a seventh central portion 1071 having a circular shape and a plurality of seventh extended portions extending outward from the peripheral edge of the seventh central portion 1071. And 1072. The seventh member 107 is provided with seventh slits 1073 extending from the central portion of the seventh central portion 1071 to the seventh extending portions 1072. The seventh slit 1073 is located in the seventh central portion 1071 from the seventh cavity hole 1073A and the seventh central portion 1071 to the respective seventh extension portions 1072, and the seventh flow is continuous with the seventh cavity hole 1073A. It comprises a passage hole 1073B and a seventh electrode leg hole 1073C which is located at the tip of each seventh extending portion 1072 and is continuous with the seventh passage hole 1073B. In addition, a seventh member through hole 1071 h is provided in the seventh central portion 1071.

  As shown in FIG. 12C, the eighth member 108 is provided with a circular eighth central portion 1081 and a plurality of eighth extended portions extending outward from the peripheral edge of the eighth central portion 1081. And 1082. The eighth central portion 1081 is provided with an eighth member first through hole 1081 h corresponding to the seventh member through hole 1071 h. In addition, an eighth member second through hole 1082 h is provided on the extension end side of the eighth extension portion 1082.

  As shown in FIG. 12D, the ninth member 109 is provided with a circular ninth central portion 1091 and a plurality of ninth extended portions 1092 extending outward from the peripheral edge of the ninth central portion 1091. And The ninth member 109 is provided with ninth slits 1093 extending from the central portion of the ninth central portion 1091 to the ninth extension portions 1092. The ninth slit 1093 is located in the ninth central portion 1091, from the ninth cavity hole 1093 A, from the ninth central portion 1091 to each ninth extension portion 1092, and in the ninth flow that is continuous with the ninth cavity hole 1093 A A passage hole 1093B and a ninth electrode leg hole 1093C which is located at the tip of each ninth extending portion 1092 and is continuous with the ninth passage hole 1093B. In addition, a ninth member through hole 1092 h is provided at a tip end portion of each ninth extending portion 1092.

  As shown in FIG. 12E, the tenth member 1010 includes a tenth central portion 10101 of a circular shape and a plurality of tenth extension portions extending outward from the peripheral edge of the tenth central portion 10101. And 10102. Tenth member first electrode leg holes 10102h1 and tenth member second electrode leg holes 10102h2 are provided in parallel at the tip end portion of each tenth extension portion 10102.

  In order to constitute such a sixth member 106, a seventh member 107, an eighth member 108, a ninth member 109 and a tenth member 1010, a metal plate may be formed by etching or punching, or a prepreg or You may shape | mold by a nonwoven fabric prepreg.

  Next, as shown in FIG. 13A, the sixth member 106, the seventh member 107, the eighth member 108, the ninth member 109, and the tenth member 1010 are stacked in this order to form an intermediate member 1000 (see FIG. Stacking process). When the sixth member 106, the seventh member 107, the eighth member 108, the ninth member 109, and the tenth member 1010 are formed of a metal plate, the respective members are pasted together by, for example, diffusion bonding. When the sixth member 106, the seventh member 107, the eighth member 108, the ninth member 109, and the tenth member 1010 are molded of a prepreg or a nonwoven fabric prepreg, the respective members are bonded together by thermocompression bonding and then cured.

  The seventh slit 1073 provided in the seventh member 107 by overlapping the sixth member 106, the seventh member 107, the eighth member 108, the ninth member 109, and the tenth member 1010 moves the sixth member 106 and the eighth up and down. A space surrounded by the member 108 is formed, and a ninth slit 1093 provided in the ninth member 109 is a space surrounded by the eighth member 108 and the tenth member 1010 at the top and the bottom.

  The sixth member first through hole 1061 h of the sixth member 106 communicates with the space formed by the seventh slit 1073. Further, in the space formed by the seventh slits 1073, each of the portions extending to each leg in the space is communicated with the eighth member second through hole 1082h provided in each eighth extending portion 1082 of the eighth member 108. It will be in the state of Further, the eighth member second through hole 1082 h and the ninth member through hole 1092 h provided in each ninth extending portion 1092 of the ninth member 109 communicate with each other, and the ninth member through hole 1092 h and the tenth member 1010 The tenth member first electrode leg hole 10102 h 1 provided in each tenth extension portion 10102 is in communication with each other.

  In addition, the sixth member second through hole 1062 h of the sixth member 106 is formed by the ninth slit 1093 through the seventh member through hole 1071 h of the seventh member 107 and the eighth member first through hole 1081 h of the eighth member 108. It communicates with the configured space. Further, each of the portions of the space formed by the ninth slits 1093 and extending to each leg and the tenth member second electrode leg hole 10102 h 2 provided in each tenth extension portion 10102 of the tenth member 1010 It will be in the state of communicating.

  Next, as shown in FIG. 13B, each leg (each of the plurality of electrode legs 20) of the intermediate member 1000 is placed on one side (the tenth member first electrode leg hole 10102h1 and the tenth member second electrode leg hole) 10102 h 2) (bending step). The base portion 10 and the plurality of electrode legs 20 are constituted by the bending (bending), and the measurement electrode 1C is completed. Then, the plurality of electrode legs 20 are provided along the outer peripheral portion of the base portion 10.

  By this bending, the space formed by the seventh slits 1073 becomes a first flow path system extending from the base portion 10 to each electrode leg 20. That is, in the space formed by the seventh slits 1073, the portion of the base portion 10 becomes the first base portion through hole 110, and the portion extending to each electrode leg 20 becomes the first leg portion through hole 210. The sixth member first through hole 1061 h provided in the sixth member 106 is the first base opening 10 h. Further, an eighth member second through hole 1082 h provided in each eighth extending portion 1082 of the eighth member 108, a ninth member through hole 1092 h provided in each ninth extending portion 1092 of the ninth member 109, and The tenth member first electrode leg hole 10102h1 provided in each tenth extending portion 10102 of the tenth member 1010 serves as a first leg opening 210h.

  In addition, a space formed by the ninth slits 1093 forms a second flow path system extending from the base portion 10 to each electrode leg 20. That is, of the space formed by the ninth slits 1093, the portion of the base portion 10 becomes the second base portion through hole 120, and the portion extending to each electrode leg 20 becomes the second leg portion through hole 220. In addition, the sixth member second through hole 1062 h provided in the sixth member 106 becomes the second base opening 12 h. Furthermore, the tenth member second electrode leg hole 10102 h 2 provided in each tenth extension portion 10102 of the tenth member 1010 becomes a second leg opening 220 h.

  As shown in FIG. 10 and the like, in the case where the measurement electrode 1C includes the third protrusion 33, the third connection step may be provided. In the third connection step, a third projecting member having the first cavity 310 and the first cavity 310 and the second cavity 320 partitioned is provided, and the third projecting member is formed on the intermediate member 1000. By connecting, the third projection 33 is formed to extend from the base portion 10 in the opposite direction to the first direction D1 side. Here, the third projection member has a first cavity opening and a first connection opening that open to the outside, and has a second cavity opening and a second connection opening that opens to the outside. Then, in the third connection step, the first cavity opening and the second cavity opening are opened to the outside of the base 10, and the first connection aperture faces the sixth member first through hole 1061h, and the second connection is made. A third projecting member is disposed so that the opening faces the sixth member second through hole 1062 h, and the first hollow portion 310 and the first base portion through hole 110 are communicated with each other, and the second hollow portion The third projection member is connected to the intermediate member 1000 so as to communicate the 320 and the second base portion through hole 120 with each other.

Although not illustrated, an example in which the first base opening 10 h and the second base opening 12 h are provided on the side opposite to the side on which the electrode legs 20 of the base portion 10 described above are provided is a measurement electrode 1 B. It is applicable even if it is an example which connects the electrode leg 20 separately.
In the manufacturing method in this case, first, a fifth plate member, a sixth plate member, a seventh plate member, an eighth plate member, a ninth plate member, and a plurality of electrode legs, which are plate members, are prepared.
The sixth plate member has a sixth plate member first through hole and a sixth plate member second through hole which penetrate the base material.
The seventh plate member has a seventh cavity hole corresponding to the sixth plate member first through hole and a seventh plate member through hole corresponding to the sixth plate member second through hole, and the seventh cavity hole A plurality of continuous seventh channel holes are provided.
The eighth plate member has an eighth plate member first through hole corresponding to each of the seventh flow passage holes, and also has an eighth plate member second through hole corresponding to the seventh plate member through hole.
The ninth plate member has a ninth plate member through hole corresponding to each of the eighth plate member first through holes and a ninth cavity hole corresponding to the eighth plate member second through hole. It has a plurality of ninth channel holes connected to the holes.
The tenth plate member has a tenth plate member first connection hole corresponding to each of the ninth plate member through holes, and has a tenth plate member second connection hole corresponding to each of the ninth flow passage holes. .
Each of the plurality of electrode legs has a first leg through hole having on both ends a first leg opening at the tip end and a first leg opening provided at the other end, and a second leg at the tip end And a second leg through hole having on both ends a second leg opening provided at the opening and the other end.
Next, in the plate member laminating step, the sixth plate member, the seventh plate member, the eighth plate member, the ninth plate member, and the tenth plate member are stacked in this order and joined to form a base portion.
Thereby, one side of the sixth plate member first through hole becomes the first base opening, and one side of the sixth plate member through hole becomes the second base opening.
In the plate member laminating step, the sixth plate member first through hole and the seventh cavity hole are continued, and the seventh passage hole and the eighth plate member first through hole are continued, and the eighth plate The member first through hole and the ninth plate member through hole are continued, the ninth plate member through hole and the tenth plate member first connection hole are continued, and the tenth base member first connection hole from the first base opening Form part of the first flow path system.
In the plate member laminating step, the sixth plate member second through hole and the seventh plate member through hole are made continuous, and the seventh plate member through hole and the eighth plate member second through hole are made continuous, the eighth The plate member second through hole and the ninth cavity hole are made to be continuous, and the ninth flow passage hole and the tenth plate member second connection hole are made to be continuous, and from the second base opening to the 10th plate member second connection hole Form part of the second flow path system.
Next, in the leg connecting step, the tenth plate member first connection hole of the tenth plate member and the first leg opening of the electrode leg are made opposite, and the zero plate member second connection hole of the tenth plate member and the electrode Each of the plurality of electrode legs is connected to the surface on the first direction side of the tenth plate member by facing the second leg openings of the legs.
In this leg connecting step, each tenth plate member first connection hole and each first leg through hole are made continuous to form a first channel system from the first base opening to the first leg opening. Do.
Further, in the leg connecting step, each of the tenth plate member second connection holes and each of the second leg through holes are made continuous, and a second flow path system from the second base opening to the second leg opening Form

  According to such a manufacturing method, a flow having conductivity such as an electrolytic solution or a conductive gel from the same side of the surface of the base portion 10 to two flow paths (first flow path system and second flow path system) different from each other. A measurement electrode 1B capable of supplying an animal (conductive fluid) is configured.

Further, in the above-described manufacturing method, the channel holes are provided in the member or the plate member in order to form the channel system, but grooves may be used instead of the channel holes.
Although not illustrated, in the manufacturing method in this case, first, an eleventh plate member, a twelfth plate member, a thirteenth plate member, and the plurality of electrode legs, which are plate members, are prepared.
The eleventh plate member has an eleventh plate member first through hole and an eleventh plate member second through hole penetrating the base.
In the surface on the first direction side of the eleventh plate member, a plurality of first groove portions formed in a recess shape is provided with one end continuously in the eleventh plate member first through hole.
The twelfth plate member has a twelfth plate member first through hole corresponding to each of the first groove portions, and has a twelfth plate member second through hole corresponding to the eleventh plate member second through hole.
The thirteenth plate member has hollow groove for hollow shape corresponding to the thirteenth plate member first connection hole corresponding to each of the twelfth plate member first through holes and the twelfth plate member second through hole.
On the surface of the thirteenth plate member opposite to the first direction side, a plurality of second groove portions formed in a hollow shape are provided at their one end continuously in the hollow groove.
An eighth plate member second connection hole continuous with the second groove portion is provided on the surface on the first direction side of the thirteenth plate member.
Each of the plurality of electrode legs has a first leg through hole having on both ends a first leg opening at the tip end and a first leg opening provided at the other end, and a second leg at the tip end And a second leg through hole having on both ends a second leg opening provided at the opening and the other end.
Further, in the plate member laminating step, the surface of the eleventh plate member on which the plurality of first groove portions are formed and the surface on which the plurality of second groove portions of the thirteenth plate member are formed are opposed to each other. A base portion is formed by sandwiching and joining members.
Further, in the plate member laminating step, one side of the eleventh plate member first through hole is set as the first base opening, and one side of the eleventh plate member second through hole is set as the second base opening.
Further, the first groove portion and the twelfth plate member first through hole are made to be continuous, the twelfth plate member through hole and the thirteenth plate member first connection hole are made to be continuous, and the first base plate opening is the first plate opening. Form part of a first flow path system leading to the connection hole.
Further, in the plate member laminating step, the eleventh plate member second through hole and the twelfth plate member second through hole are continued, and the twelfth plate member second through hole and the hollow groove are continued, and the second base A part of the second flow path system from the opening to the cavity groove is formed.
Next, in the leg connecting step, the thirteenth plate member first connection hole of the thirteenth plate member and the first leg opening of the electrode leg are opposed, and the cavity groove of the thirteenth plate member and the second leg of the electrode leg Each of the plurality of electrode legs is connected to the surface on the first direction side of the eighth plate member so as to face the opening.
Further, in the leg connecting step, the thirteenth plate member first connection holes and the respective first leg through holes are made continuous, and the first channel system from the first base opening to the first leg opening is obtained. Form.
Further, in the leg connecting step, the respective hollow grooves and the respective second leg through holes are made continuous to form a second flow path system extending from the second base opening to the second leg opening.

  According to the manufacturing method using a plate member having such a groove, in the plate member laminating step, the sixth plate member, the seventh plate member, and the eighth plate member are stacked and joined to form two systems inside The base portion may be formed with a portion of each of the flow paths.

Third Embodiment Biological Information Acquisition Device
FIGS. 14A and 14B are schematic views illustrating the biological information acquiring apparatus according to the third embodiment. The structure provided with the supply part 50 and the attraction | suction part 55 is illustrated by FIG. 14 (a), and the use condition is illustrated by FIG.14 (b).
As shown to Fig.14 (a), the biometric information acquisition apparatus 100 is provided with the measurement electrode 1A which concerns on this embodiment, the supply part 50, and the attraction | suction part 55. As shown in FIG. Here, the measurement electrode 1A according to the first embodiment is used, but the measurement electrode 1B according to the second embodiment may be used. The supply unit 50 is a portion for supplying the conductive fluid to the first flow path system. The suction portion 55 is a portion for sucking the conductive fluid from the second flow path system.

  A first tube T1 is connected between the supply unit 50 and the first base opening 10h of the measurement electrode 1A. The conductive fluid sent from the supply unit 50 is supplied to the measurement electrode 1A via the first tube T1. Then, the conductive fluid is sent to the first base portion through hole 110 through the first base opening 10 h of the measurement electrode 1 A, and the first leg opening 210 h through the first leg through hole 210. Will be sent to the living body. Therefore, even if the amount of the conductive fluid supplied to the first flow path system is small, it can be reliably expanded from the first base opening 10 h to the first flow path system, and stable supply can be performed.

  A second tube T2 is connected between the suction portion 55 and the second base opening 12h of the measurement electrode 1A. The conductive fluid sent to the living body is sucked from the second leg opening 220 h and sent to the second base portion through hole 120 via the second leg through hole 220. Then, the conductive fluid is sent from the second base portion through hole 120 to the second tube T2 through the second base opening 12h, and is sent from the second tube T2 to the suction portion 55. Therefore, the conductive fluid is reliably sucked through the second flow path system.

  As shown in FIG. 14B, the biological information acquisition apparatus 100 acquires biological information (for example, an electroencephalogram) by using a plurality of measurement electrodes 1A brought into contact with a living body S (for example, scalp). A first tube T1 connected to the supply unit 50, a second tube T2 connected to the suction unit 55, and a cable C connected to the measurement unit 60 are attached to each measurement electrode 1A.

  In order to measure biological information, first, the measurement electrode 1A is brought into contact with the living body S. In the case of bringing the plurality of measurement electrodes 1A into contact with the scalp of the living body S, for example, a cap to which the plurality of measurement electrodes 1A are attached may be covered. After the measurement electrode 1A is brought into contact with the living body S, the conductive fluid is supplied from the supply unit 50 to each measurement electrode 1A. The conductive fluid is discharged from the first leg openings 210h of the plurality of electrode legs 20 of the measurement electrode 1A. By supplying the conductive fluid to the living body S, the conductivity between the electrode leg 20 and the living body S is improved.

  Biometric information is detected in this state. That is, the current flowing to the living body S is detected by the plurality of measurement electrodes 1A based on the biological information, and the detected current is sent to the measurement unit 60 via the cable C. The measurement unit 60 performs signal processing based on current and acquires biological information.

  After completion of the measurement, the conductive fluid supplied to the living body S is sucked into the suction portion 55 from the second leg openings 220 h of the plurality of electrode legs 20 of the measurement electrode 1A. Thereby, the conductive fluid which has spread to the living body S can be recovered promptly. In addition, while performing measurement, you may perform supply and suction of a conductive fluid simultaneously. As a result, a clean conductive fluid can always be supplied to the living body S during measurement, and the amount of the conductive fluid staying in the living body S can be controlled by controlling the balance between supply and suction.

  In the biological information acquiring apparatus 100 using the measurement electrode 1A according to the present embodiment, since a suitable amount of conductive fluid is supplied from the respective electrode legs 20 to the living body S without bias, it is a small amount of conductive fluid. Will surely expand. In particular, a plurality of electrode legs 20 are arranged circumferentially, and conductive fluid is supplied from each electrode leg 20. Also, the supplied conductive fluid can be stably sucked from each electrode leg 20. As a result, stable signal detection can be performed by the measurement electrode 1A through the conductive fluid.

  In the example shown in FIG. 14, the conductive fluid is supplied by the supply unit 50 via the first flow channel system, and the conductive fluid is sucked by the suction unit 55 via the second flow channel system. Although shown, the conductive fluid may be supplied by the supply unit 50 via the second flow channel system, and the conductive fluid may be suctioned by the suction unit 55 via the first flow channel system.

  In addition, the conductive fluid may be supplied by two independently controlled supply units 50 via each of the first flow path system and the second flow path system, or 2 may be controlled independently. The conductive fluid may be suctioned independently by each of the first flow path system and the second flow path system by the two suction sections 55.

  If the first projection 30 or the second projection 32 is provided, the first tube T1 is connected to the first projection 30 and the second tube T2 is connected to the second projection 32. Good.

  As described above, according to the present embodiment, the electrode in contact with the living body S has a simple structure, can supply an appropriate amount of conductive fluid, and can accurately suction the supplied conductive fluid. It is possible to provide a method of manufacturing the measurement electrodes 1A and 1B, the biological information acquisition apparatus 100, and the measurement electrodes 1A and 1B that can

  Although the present embodiment has been described above, the present invention is not limited to these examples. For example, in the above embodiment, the conductive fluid is supplied from the first cavity opening 310h provided in the first protrusion 30, but the first base portion through hole 110 is provided via the first base opening 10h. And a first fluidizing portion having a first fluid port in fluid communication therewith. For example, the first fluid hole may be provided in the base portion 10, and the first fluid hole may be provided to extend to the side surface of the base portion 10. Alternatively, the first flow may be provided on the surface of the base portion 10. An open end of the animal hole may be provided.

  Further, in the above embodiment, the conductive fluid is sucked from the second cavity opening 320 h provided in the second protrusion 32, but the second base portion through hole 120 is formed via the second base opening 12 h. And a second flow section having a second fluid port in communication with the second flow section. For example, the second fluid hole may be provided in the base portion 10, and the second fluid hole may be provided to extend to the side surface of the base portion 10. Alternatively, the second flow may be provided on the surface of the base portion 10. An open end of the animal hole may be provided.

In the above embodiment, the first leg opening 210h and the second leg opening 220h are provided on the inner surface of the electrode leg 20. However, the first leg opening 210h and the second leg may be provided. Both or any one of the part openings 220 h may be provided on the outer surface of the electrode leg 20 or may be provided on the tip 20 a of the electrode leg 20.
In the above embodiment, the measurement electrodes 1A and 1B are provided with two systems of the first channel system and the second channel system. However, three or more channel systems are independent of each other. May be provided.

  Those skilled in the art may appropriately add, delete, or change the design of the components from the above-described embodiments, or may appropriately combine the features of the embodiments, and the gist of the present invention is also included. As long as it is, it is included in the scope of the present invention.

1A, 1B ... Measurement electrodes (electrodes for measuring biological information)
DESCRIPTION OF SYMBOLS 10 ... Base part 10h ... 1st base opening 12h ... 2nd base opening 20 ... Electrode leg 20a ... Tip part 30 ... 1st projection part 32 ... 2nd projection part 33 ... 3rd projection part 50 ... Supply part 55 ... Suction part DESCRIPTION OF SYMBOLS 60 ... Measurement part 100 ... Biological information acquisition apparatus 101 ... 1st member 102 ... 2nd member 103 ... 3rd member 104 ... 4th member 105 ... 5th member 106 ... 6th member 107 ... 7th member 108 ... 8th member 109: ninth member 110: first base body through hole 120: second base body through hole 210: first leg through hole 210h: first leg opening 220: second leg through hole 220h: Second leg opening 310 First hollow portion 310h First hollow portion opening 320 Second hollow portion 320h Second hollow portion opening 501 First plate member 502 Second plate member 503 Third plate member 504 ... Fourth plate member 505 ... Fifth plate member 1000 ... Intermediate member 011 ... first central portion 1011 h ... first member through hole 1012 ... first extended portion 1021 ... second central portion 1022 ... second extended portion 1023 ... second slit 1023 A ... second cavity hole 1023 B ... second flow Road hole 1023C Second electrode leg hole 1031 Third central portion 1032 Third extension portion 1032h Third member through hole 1041 Fourth central portion 1042 Fourth extension portion 1042h Fourth member penetration Hole 1043 Fourth slit 1043A Fourth cavity hole 1043B Fourth channel hole 1043C Fourth electrode leg hole 1051 Fifth central portion 1051h Fifth member first through hole 1052 fifth extension Part 1052h1 fifth member second through hole 1052h2 fifth member third through hole 1061 sixth central portion 1061h sixth member first through hole 1062 sixth extension portion 1062 Seventh member second through hole 1071 seventh central portion 1071 h seventh member through hole 1072 seventh extended portion 1073 seventh slit 1073A seventh cavity hole 1073B seventh flow passage hole 1081 Eighth central portion 1081h eighth member first through hole 1082 eighth extension portion 1082 h eighth member second through hole 1091 ninth central portion 1091 h ninth member through hole 1092 ninth extension portion 1092 h Ninth member through hole 1093 ninth slit 1093A ninth cavity hole 1093B ninth flow passage hole 1093C ninth electrode leg hole 2000 electrode leg group 2000a connection surface 5000 laminated structure 5011 Base material 5011 h First plate member through hole 5021 Base material 5021 h Second cavity hole 5022 h Second flow passage hole 5031 Base material 5031 h Third plate member through hole 5041 ... Base material 5041h ... Hole for fourth cavity 5042h ... Hole for fourth flow path 5043h ... Fourth plate member through hole 5051 ... Base material 5051h ... fifth plate member first through hole 5052h ... fifth plate member second through hole 5053h fifth plate member third through hole 10101 tenth central portion 10102 tenth extension portion 10102 h1 tenth member first electrode leg hole 10102 h2 tenth member second electrode leg hole C cable D1 first Orientation S ... living body T 1 ... first tube T 2 ... second tube

Claims (32)

A base portion,
And an electrode leg extended from the base portion so that the tip end faces the first direction side, which is one side of the base portion,
The tip of the electrode leg is a living body information measuring electrode capable of contacting with a living body,
In the base portion, a first base portion through hole having a first base opening and a second base portion through hole having a second base opening are independently provided.
The electrode leg includes a first leg through hole having a first leg opening on the tip end side, and a second leg through hole having a second leg opening on the tip end side. Provided independently,
A first flow path system including the first base portion through hole and the first leg portion through hole, and a second flow path including the second base portion through hole and the second leg portion through hole An electrode for measuring biological information, comprising: a second channel system different from the system. The base portion and the electrode leg are integrally formed;
The first joint portion connecting the first base portion through hole and the first leg portion through hole has no seam, and
The biological information measuring electrode according to claim 1, wherein a seam is not provided at a second joint portion connecting the second base portion through hole and the second leg portion through hole. The base portion is further provided with a first protrusion extending in a direction opposite to the first direction side,
The biological information measuring electrode according to claim 1, wherein the first base opening is located at the first protrusion. The base portion further includes a second protrusion extending from the base portion,
The biological information measuring electrode according to claim 3, wherein the second base opening is located at the second projection. A first flow portion having a first fluid hole in communication with the first base portion through hole via the first base opening;
5. A second flow unit having a second fluid hole in communication with the second base portion through hole via the second base opening, further comprising a second flow portion. The biological information measuring electrode described in.   The biological information measuring electrode according to any one of claims 1 to 5, wherein the electrode leg contains conductive carbon.   The biological information measuring electrode according to any one of claims 1 to 6, wherein the electrode leg contains a conductive metal. A base portion,
And a plurality of electrode legs extended from the base portion so that the tip end faces the first direction side, which is one side of the base portion,
The biological information measuring electrode, wherein at least one tip of the plurality of electrode legs can be in contact with a living body,
In the base portion, a plurality of first base portion through holes having a first base opening and a plurality of second base portion through holes having a second base opening are independently provided.
Each of the plurality of electrode legs has a first leg through hole having a first leg opening on the tip end side, and a second leg through hole having a second leg opening on the tip end side And are independently provided,
A first flow path system including the plurality of first base body through holes and the plurality of first leg through holes, the plurality of second base body through holes, and the plurality of second leg through holes An electrode for measuring biological information, comprising: a second flow channel system including a hole and different from the first flow channel system.   In the connection portion where each of the plurality of electrode legs and the base portion are connected, the electrode in a plane crossing the flow direction of the flow path in each of the first flow path system and the second flow path system The biological information measuring electrode according to claim 8, wherein the joint surface between the leg and the base portion is not provided.   The biological information measurement method according to claim 8 or 9, wherein each of the plurality of first base body through holes and the plurality of second base body through holes are formed in a straight line. electrode. The base portion is further provided with a first protrusion extending in a direction opposite to the first direction side,
The first projection has a first cavity communicating with the first through hole.
The biological information measuring electrode according to any one of claims 8 to 10, wherein the first hollow portion has a first hollow portion opening which is open to the outside of the base portion. The base portion further includes a second protrusion extending from the base portion,
The second projection has a second cavity communicating with the second through hole.
The biological information measuring electrode according to claim 11, wherein the second hollow portion has a second hollow portion opening which is open to the outside of the base portion. The plurality of electrode legs are provided along the outer periphery of the base portion,
The biological information measuring electrode according to claim 12, wherein each of the first hollow portion and the second hollow portion is provided apart from each other at a central portion of the base portion.   The biological information measuring electrode according to any one of claims 11 to 13, wherein each of the first protrusion and the base portion has conductivity. A first flow portion having a first fluid hole in communication with the first base portion through hole via the first base opening;
15. A second flow unit having a second fluid hole communicating with the second base unit through hole through the second base opening, further comprising: The biological information measuring electrode described in.   The biological information measuring electrode according to any one of claims 8 to 15, wherein each of the plurality of electrode legs includes conductive carbon.   The biological information measuring electrode according to any one of claims 8 to 16, wherein each of the plurality of electrode legs contains a conductive metal. The biological information measuring electrode according to any one of claims 1 to 17.
A supply unit for supplying a fluid having conductivity to the first flow path system;
And a suction unit for suctioning the fluid from the second flow path system. A base portion,
And a plurality of electrode legs extended from the base portion so that the tip end faces the first direction side, which is one of the base portions,
In the base portion, a plurality of first base portion through holes having a first base opening and a plurality of second base portion through holes having a second base opening are independently provided.
Each of the plurality of electrode legs has a first leg through hole having a first leg opening on the tip end side, and a second leg through hole having a second leg opening on the tip end side And are independently provided,
A first flow path system including the plurality of first base body through holes and the plurality of first leg through holes, the plurality of second base body through holes, and the plurality of second leg through holes A method of manufacturing a biological information measuring electrode, comprising: a second flow channel system including a hole and different from the first flow channel system;
Laminating a plurality of plate-like members to form an intermediate member including a part of the base portion and the plurality of electrode legs extending from the base portion;
Bending each of the plurality of electrode legs of the intermediate member so as to direct the tip to the first direction side;
Equipped with
In the laminating step, the first channel system and the second channel system are formed in the intermediate member by laminating the plurality of plate-like members. Production method. Preparing a first member, a second member, a third member, a fourth member and a fifth member, which are the plate-like members;
The first member has a first central portion having a first member through hole penetrating the base, and a plurality of first extending portions extending from the first central portion.
The second member has a second central portion having a second cavity hole corresponding to the first member through hole, and a plurality of second extending portions extending from the second central portion.
The second central portion is provided with a plurality of second flow passage holes connected to the second hollow hole, and the second extension portion is connected to the second flow passage holes. 2 hole for electrode leg is provided,
The third member has a third central portion corresponding to the first central portion and the second central portion, and a plurality of third extending portions extending from the third central portion.
Third member through holes corresponding to the second electrode leg holes are provided on the extension end side of the third extension portion,
The fourth member has a fourth central portion having a fourth cavity hole penetrating the base, and a plurality of fourth extending portions extending from the fourth central portion.
The fourth central portion is provided with a plurality of fourth channel holes connected to the fourth hollow hole.
A hole for a fourth electrode leg connected to the fourth flow passage hole is provided in the fourth extension portion, and the third member penetrates the extension end portion side of the fourth extension portion. A fourth member through hole corresponding to each of the holes is provided;
The fifth member has a fifth central portion having a fifth member first through hole corresponding to the fourth hollow hole, and a plurality of fifth extending portions extending from the fifth central portion. And
A fifth member second through hole corresponding to each of the fourth member through holes is provided on the extension end side of the fifth extension portion, and corresponding to each of the fourth electrode leg holes A fifth member third through hole is provided,
In the laminating step, the first member, the second member, the third member, the fourth member, and the fifth member are stacked and joined in this order,
The base portion is formed by laminating the first central portion, the second central portion, the third central portion, the fourth central portion, and the fifth central portion, and the first extension portion, The plurality of electrode legs are formed by laminating two extension portions, the third extension portion, the fourth extension portion, and the fifth extension portion.
One side of the first member through hole is the first base opening, and one side of the fifth member second through hole is the first leg opening,
One side of the fifth member first through hole is the second base opening, and one side of the fifth member third through hole is the second leg opening,
The first member through hole and the second cavity hole are connected, and the second electrode leg hole and the third member through hole are connected, and the third member through hole and the fourth member through hole And the fourth member through hole and the fifth member first through hole are continued to form a first flow path system from the first member through hole to the fifth member second through hole. And the fifth member first through hole and the fourth cavity hole are continued, and the fourth electrode leg hole and the fifth member third through hole are continued, and the fifth member first Forming the second flow path system from the through hole to the fifth member third through hole,
20. The method according to claim 19, wherein the bending step includes bending each of the plurality of electrode legs to the side where the fifth member second through hole and the fifth member third through hole are formed. The manufacturing method of the electrode for biological information measurement of description. By preparing a first projecting member having a first hollow portion inside and connecting the first projecting member to the intermediate member, it is extended from the base portion to the opposite side to the first direction side. Providing a first connecting step of forming a first projection,
The first projection member is provided with a first cavity opening and a first connection opening that open to the outside,
In the first connection step, the first projection member is disposed such that the first cavity opening is open to the outside of the base portion and the first connection opening faces the first base opening. 21. The biological information measuring electrode according to claim 19, wherein the first projection member is connected to communicate the first hollow portion with the first base portion through hole. Production method. Preparing a second projecting member having a second hollow portion inside, and connecting the second projecting member to the intermediate member to form a second projecting portion extended from the base portion Equipped with
The second projection member is provided with a second cavity opening and a second connection opening that open to the outside,
In the second connection step, the second projection member is disposed such that the second cavity opening is open to the outside of the base portion and the second connection opening faces the second base opening. 22. The method according to claim 21, wherein the second projection member is connected to communicate the second hollow portion with the second base portion through hole. The sixth member, the seventh member, the eighth member, the ninth member and the tenth member, which are the plate-like members, are prepared.
The sixth member has a sixth central portion having a sixth member first through hole and a sixth member second through hole penetrating the base, and a plurality of sixth extending portions extending from the sixth central portion. And have
The seventh member has a seventh central portion including a seventh cavity hole corresponding to the sixth member first through hole and a seventh member through hole corresponding to the sixth member second through hole; And a plurality of seventh extending portions extending from the central portion;
The seventh central portion is provided with a plurality of seventh flow passage holes continuous with the seventh hollow hole, and the seventh extension portion is formed with a seventh continuous flow passage hole. 7 holes for electrode legs are provided,
The eighth member has an eighth central portion corresponding to the sixth central portion and the seventh central portion, and a plurality of eighth extending portions extending from the eighth central portion,
An eighth member first through hole corresponding to the seventh member through hole is provided in the eighth central portion, and an extension end portion side of the eighth extension portion is for the seventh electrode leg. An eighth member second through hole corresponding to each of the holes is provided;
The ninth member has a ninth central portion having a ninth cavity hole corresponding to the eighth member first through hole, and a plurality of ninth extending portions extending from the ninth central portion. And
The ninth central portion is provided with a plurality of ninth flow passage holes continuous with the ninth hollow hole,
The ninth extending portion is provided with a hole for a ninth electrode leg continuous to the ninth flow passage hole, and the extending end portion side of the ninth extending portion is provided with the eighth member eighth. A ninth member through hole corresponding to each of the two through holes is provided,
The tenth member has a tenth central portion corresponding to the eighth central portion and the ninth central portion, and a plurality of tenth extending portions extending from the tenth central portion.
A tenth member first electrode leg hole corresponding to each of the ninth member through holes is provided on the extension end side of the tenth extension portion, and corresponding to each of the ninth electrode leg holes. A 10th member second electrode leg hole is provided,
In the laminating step, the sixth member, the seventh member, the eighth member, the ninth member, and the tenth member are stacked and joined in this order,
The base portion is formed by laminating the sixth central portion, the seventh central portion, the eighth central portion, the ninth central portion and the tenth central portion, and the sixth extension portion, the seventh The plurality of electrode legs are formed by laminating the seven extension portions, the eighth extension portion, the ninth extension portion, and the tenth extension portion,
One side of the sixth member first through hole is the first base opening, and one side of the tenth member first electrode leg hole is the first leg opening,
One side of the sixth member second through hole is the second base opening, and one side of the tenth member second electrode leg hole is the second leg opening,
The sixth member first through hole and the seventh cavity hole are made continuous, and the seventh electrode leg hole and the eighth member second through hole are made continuous, and the eighth member second through hole The ninth member through hole is made continuous, and the ninth member through hole and the tenth member first electrode leg hole are made continuous, and the tenth member first electrode leg hole is made from the sixth member first through hole Forming the first channel system leading to the second member, and connecting the sixth member second through hole and the seventh member through hole to connect the seventh member through hole and the eighth member first through hole. The eighth member first through hole and the ninth cavity hole are made continuous, and the ninth electrode leg hole and the tenth member second electrode leg hole are made continuous, and the sixth member sixth Forming the second channel system from the second through hole to the tenth member second electrode leg hole,
The bending step includes bending each of the plurality of electrode legs to the opposite side to the side on which the sixth member first through hole and the sixth member second through hole are formed. The manufacturing method of the electrode for biometric information measurement of Claim 19. A third projecting member having a first cavity and a second cavity partitioned from the first cavity is provided inside, and the third projecting member is connected to the intermediate member to form the base And a third connecting step of forming a third protrusion extending in the opposite direction to the first direction side,
The third projection member has a first cavity opening and a first connection opening that open to the outside, and a second cavity opening and a second connection opening that opens to the outside,
In the third connection step, the first cavity opening and the second cavity opening are open to the outside of the base portion, and the first connection opening faces the sixth member first through hole, The third projection member is disposed such that the second connection opening faces the sixth member second through hole, and the first hollow portion and the first base portion through hole are communicated with each other. The method for manufacturing a biological information measuring electrode according to claim 23, wherein the third projection member is connected such that the second hollow portion and the second base portion through hole communicate with each other.   25. The method of manufacturing an electrode for measuring biological information according to any one of claims 19 to 24, wherein at least one of the plate members is a metal plate.   26. The method according to any one of claims 19 to 25, wherein at least one of the plate members is formed of a conductive prepreg or a non-woven prepreg. A base portion,
And a plurality of electrode legs extended from the base portion so that the tip end faces the first direction side, which is one of the base portions,
In the base portion, a plurality of first base portion through holes having a first base opening and a plurality of second base portion through holes having a second base opening are independently provided.
Each of the plurality of electrode legs has a first leg through hole having a first leg opening on the tip end side, and a second leg through hole having a second leg opening on the tip end side And are independently provided,
A first flow path system including the plurality of first base body through holes and the plurality of first leg through holes, the plurality of second base body through holes, and the plurality of second leg through holes A method of manufacturing a biological information measuring electrode, comprising: a second flow channel system including a hole and different from the first flow channel system;
A plate member laminating step of laminating a plurality of plate members constituting the base portion to form a laminated structure;
A leg connecting step of connecting the plurality of electrode legs to the laminated structure;
In the plate member laminating step, by laminating the plurality of plate members, a part of the first channel system and a part of the second channel system are formed in the laminated structure. Method of producing an electrode for measuring biological information. Preparing a first plate member, a second plate member, a third plate member, a fourth plate member, a fifth plate member, and the plurality of electrode legs, which are the plate members;
The first plate member has a first plate member through hole penetrating the base material,
The second plate member has a second cavity hole corresponding to the first plate member through hole, and has a plurality of second flow passage holes connected to the second cavity hole.
The third plate member has a third plate member through hole corresponding to each of the second flow passage holes,
The fourth plate member has a plurality of fourth plate member through holes, and has a fourth cavity hole and a plurality of fourth passage holes connected to the fourth cavity hole.
The fifth plate member has a fifth plate member first through hole penetrating the base material, and a fifth plate member second through hole corresponding to each of the fourth plate member through holes and the fourth flow passage A fifth plate member third through hole corresponding to each of the holes;
Each of the plurality of electrode legs includes the first leg through hole having the first leg opening provided at the tip end side and the first leg opening provided at the other end, and the tip side A second leg through hole having at each end thereof a second leg opening provided at the second leg opening and the other end,
In the plate member laminating step, the first plate member, the second plate member, the third plate member, the fourth plate member, and the fifth plate member are stacked in this order and joined to form the base portion. ,
One side of the first plate member through hole is set as the first base opening, and one side of the fifth plate member first through hole is set as the second base opening,
The first plate member through hole and the second cavity hole are continued, and the second passage hole and the third plate member through hole are continued, and the third plate member through hole and the fourth The plate member through hole is made continuous, and the fourth plate member through hole and the fifth plate member third through hole are made continuous, and the third extending from the first base opening to the fifth plate member third through hole Forming a part of one flow path system; and connecting the fifth through hole for the fifth plate member with the hole for the fourth cavity, and forming the fourth through hole for the flow path and the fifth through plate through the second hole. Forming a part of the second flow path system from the fifth plate member first through hole to the fifth plate member second through hole by making the hole continuous with the hole;
In the leg connecting step, the fifth plate member second through hole of the fifth plate member is opposed to the first leg opening of the electrode leg, and the fifth plate member third of the fifth plate member The through hole and the second leg opening of the electrode leg are made to face each other, and each of the plurality of electrode legs is connected to the surface on the first direction side of the fifth plate member,
Forming the first flow path system from the first base opening to the first leg opening by connecting the respective fifth plate member second through holes and the respective first leg through holes; And each fifth plate member third through hole and each second leg through hole are made continuous to form a second flow path system extending from the second base opening to the second leg opening. The method according to claim 27, wherein the method comprises the step of: Preparing a sixth plate member, a seventh plate member, an eighth plate member, a ninth plate member, a tenth plate member and the plurality of electrode legs, which are the plate members;
The sixth plate member has a sixth plate member first through hole penetrating the base material and a sixth plate member second through hole.
The seventh plate member has a seventh cavity hole corresponding to the sixth plate member first through hole and a seventh plate member through hole corresponding to the sixth plate member second through hole, A plurality of seventh channel holes connected to the cavity holes;
The eighth plate member has an eighth plate member first through hole corresponding to each of the seventh flow passage holes, and has an eighth plate member second through hole corresponding to the seventh plate member through hole. And
The ninth plate member has a ninth plate member through hole corresponding to each of the eighth plate member first through holes and a ninth cavity hole corresponding to the eighth plate member second through hole, A plurality of ninth flow passage holes connected to the ninth cavity hole;
The tenth plate member has a tenth plate member first connection hole corresponding to each of the ninth plate member through holes, and a tenth plate member second connection corresponding to each of the ninth flow passage holes. Have a hole,
Each of the plurality of electrode legs includes the first leg through hole having the first leg opening provided at the tip end side and the first leg opening provided at the other end, and the tip side A second leg through hole having at each end thereof a second leg opening provided at the second leg opening and the other end,
In the plate member laminating step, the sixth plate member, the seventh plate member, the eighth plate member, the ninth plate member, and the tenth plate member are stacked in this order and joined to form the base portion. ,
One side of the sixth plate member first through hole is the first base opening, and one side of the sixth plate member second through hole is the second base opening,
The sixth plate member first through hole and the seventh cavity hole are connected, and the seventh passage hole and the eighth plate member first through hole are connected, and the eighth plate member first The through hole and the ninth plate member through hole are continued, and the ninth plate member through hole and the tenth plate member first connection hole are continued, and the tenth plate member first hole is opened from the first base opening. Forming a part of the first flow path system leading to the connection hole; and connecting the sixth plate member second through hole and the seventh plate member through hole to connect the seventh plate member through hole and the seventh plate member through hole The eighth plate member second through hole is made continuous, and the eighth plate member second through hole and the ninth cavity hole are made continuous, and the ninth flow passage hole and the tenth plate member second connection are made. Forming a part of the second flow path system from the second base opening to the tenth plate member second connection hole, and making the hole continuous with the hole;
In the leg connecting step, the tenth plate member first connection hole of the tenth plate member and the first leg opening of the electrode leg are opposed, and the tenth plate member second of the tenth plate member Connecting the connection hole and the second leg opening of the electrode leg, and connecting the plurality of electrode legs to the surface on the first direction side of the tenth plate member;
Forming a first flow path system from the first base opening to the first leg opening by connecting each of the tenth plate member first connection holes with each of the first leg through holes; And each of the tenth plate member second connection holes and each of the second leg through holes are made continuous to form a second flow path system from the second base opening to the second leg opening. The method according to claim 27, wherein the method comprises the step of: Preparing an eleventh plate member, a twelfth plate member, a thirteenth plate member, and the plurality of electrode legs, which are the plate members;
The eleventh plate member has an eleventh plate member first through hole and an eleventh plate member second through hole penetrating the base material,
On the surface on the first direction side of the eleventh plate member, a plurality of first groove portions formed in a recess shape are provided with one end continuing to the eleventh plate member first through hole,
The twelfth plate member has a twelfth plate member first through hole corresponding to each of the first groove portions, and has a twelfth plate member second through hole corresponding to the eleventh plate member second through hole. And
The thirteenth plate member has a thirteenth plate member first connection hole corresponding to each of the twelfth plate member first through holes and a hollow groove having a hollow shape corresponding to the twelfth plate member second through hole. And
On the surface of the thirteenth plate member opposite to the first direction side, a plurality of second groove portions formed in a hollow shape are provided with one end continuing to the hollow groove,
An eighth plate member second connection hole continuous with the second groove portion is provided on the surface on the first direction side of the thirteenth plate member,
Each of the plurality of electrode legs includes the first leg through hole having the first leg opening provided at the tip end side and the first leg opening provided at the other end, and the tip side A second leg through hole having at each end thereof a second leg opening provided at the second leg opening and the other end,
In the plate member laminating step, the surface of the eleventh plate member on which the plurality of first grooves are formed is opposed to the surface of the thirteenth plate member on which the plurality of second grooves are formed. The base portion is formed by sandwiching and bonding the twelfth plate member therebetween;
One side of the eleventh plate member first through hole is set as the first base opening, and one side of the eleventh plate member second through hole is set as the second base opening,
The first groove portion and the twelfth plate member first through hole are made to be continuous, the twelfth plate member first through hole and the thirteenth plate member first connection hole are made to be continuous, and from the first base opening Forming a part of the first flow path system leading to a thirteenth plate member first connection hole; and connecting the eleventh plate member second through hole and the twelfth plate member second through hole, Twelfth plate member second through hole and groove for cavity are connected, and forming a part of the second channel system from the second base opening to the groove for cavity is formed,
In the leg connecting step, the thirteenth plate member first connection hole of the thirteenth plate member and the first leg opening of the electrode leg are opposed to each other, and the hollow groove of the thirteenth plate member and the electrode Each of the plurality of electrode legs is connected to the surface of the first facing side of the thirteenth plate member by facing the second leg opening of the leg;
Forming a first flow path system from the first base opening to the first leg opening by connecting each of the thirteenth plate member first connection holes with each of the first leg through holes; And forming the second flow path system from the second base opening to the second leg opening by connecting each of the hollow grooves with each of the second leg through holes. The manufacturing method of the electrode for biometric information measurement of Claim 27 characterized by these. The base portion is prepared by preparing a third projection member having a first cavity portion and a second cavity portion partitioned with the first cavity portion inside, and connecting the third projection member to the laminated structure. And a third connecting step of forming a third projection extending in the direction opposite to the first direction.
The third projection member has a first cavity opening and a first connection opening that open to the outside, and a second cavity opening and a second connection opening that opens to the outside,
In the third connection step, the first cavity opening and the second cavity opening are opened to the outside of the base portion, the first connection opening is the first base opening, and the second connection opening is The third projecting member is disposed to face the second base opening, and the first hollow portion and the first base portion through hole are communicated with each other, and the second hollow portion and the second hollow portion are connected. 31. The method according to any one of claims 28 to 30, wherein the third projection member is connected to communicate with the through hole of the base portion. The method according to any one of claims 27 to 31, wherein at least one of the plate members is formed of a conductive carbon material.