JP4899157B2 - Animal electrode and biological signal collection method using the same - Google Patents

Description

  The present invention relates to an animal electrode used for extracting an electrical phenomenon such as an electrocardiogram waveform from an animal as an electric signal, and a biological signal collecting method using the animal electrode.

Examples of conventional animal electrodes include those described in Patent Document 1. In Patent Document 1, an electrode is suspended near an animal's skin with only a body hair sandwiched by a gripping part, and the animal is filled with a fluidized electric current containing an electrolyte in the gap between the electrode and the skin. An electrode structure is described. Further, it is described that either one or both of a pair of sandwiching pieces constituting the gripping part may be formed in a comb shape.
JP 2004-344581 A

  In the animal electrode according to the above configuration, the connection relation between the body hair and the electrode is maintained by setting only the body hair to be sandwiched between the gripping portions. However, animals are rarely standing still, and the above configuration has a problem that the electrode is easily detached. In addition, if the electrolyte used for obtaining electrical conduction with the skin is liquid or cream, it remains on the animal hair after using the electrode, so it needs to be wiped off, increasing the burden. In addition, in the case of using the type in which the electrolyte is sprayed, it is often dried during the inspection, requiring frequent spraying work, and there is a problem that the burden is large.

  The present invention has been made in order to solve the problems of the conventional animal electrodes as described above, and the object thereof is an animal that is easy to put on and has a structure that is difficult to come off even if the animal moves somewhat. It is to provide a working electrode. Another object is to provide an animal electrode that is unlikely to dry the electrolyte during use of the electrode and that can eliminate or reduce the wiping work after the electrode is used. It is another object of the present invention to provide a biological signal collecting method for extracting an electrical phenomenon of a living body that does not include a person as an electrical signal by using the electrode.

  An animal electrode according to the present invention includes a sandwiching portion including a pair of sandwiching pieces including a first sandwiching piece and a second sandwiching piece for sandwiching animal body hairs, and both sandwiching pieces of the sandwiching portion. In order to derive the biological information of the animal to the outside, a spring portion that urges in the direction of pressing, an operation portion that operates the clamping pieces in a direction away from each other against the elastic force of the spring portion A lead portion for connecting a lead wire, and at least a part of the clamping portion and / or the operation portion has a conductive portion formed of a conductive material, and the conductive portion is electrically connected to the lead portion. The body hair is sandwiched between the clamping parts, the skin of the animal and the conductive part are brought into electrical contact via a conductive fluid, and the electrical phenomenon of the living body is taken out from the lead-out part as the electrical signal. In the animal electrode used for the first clamping Comb teeth are formed at the tip of the second pinching piece, and the tip end portion of the second pinching piece is bent so that the tip end portion or the tip edge portion of the second pinching piece abuts on the comb tooth of the first pinching piece. And a space is formed between the second sandwiching piece including the bent portion and the comb teeth.

  The animal electrode according to the present invention is characterized in that the longitudinal direction of the space portion and the longitudinal direction of the comb teeth intersect each other.

  In the animal electrode according to the present invention, at least a part of the sandwiching portion is configured as a conductive portion, and a liquid retaining member that permeates the conductive fluid between the first sandwiching piece and the second sandwiching piece is provided. Further, the conductive part is interposed so as to be in contact with at least a part of the conductive part.

  In the animal electrode according to the present invention, the distal end portion of the second sandwiching piece is bent such that the distal end portion or the distal end edge portion of the second sandwiching piece comes into contact with the comb teeth of the first sandwiching piece. In addition, instead of a configuration in which a space is formed between the second sandwiching piece including the bent portion and the comb teeth, the second sandwiching piece is allowed to infiltrate the conductive fluid. A holding means for holding the liquid member is formed.

  The animal electrode according to the present invention realizes a signal collecting method for extracting an electrical phenomenon of a living body as an electric signal by sandwiching an animal's skin between a first holding piece and a second holding piece. When the skin of an animal is sandwiched between one clamping piece and the second clamping piece, at least a part of the clamping part is configured as a conductive part so as to obtain electrical conduction with the skin. And

  In the animal electrode according to the present invention, the operation portion includes a finger insertion portion into which a measurer's finger can be inserted, and the holding portion is brought into contact with the animal in a state where the measurer's finger is inserted into the finger insertion portion. And an electrode surface for taking out an electrical phenomenon of the living body as an electrical signal.

  A biological signal collection method according to the present invention uses an animal electrode according to claim 5 to sandwich the skin of an animal (except a person) between a first sandwiching piece and a second sandwiching piece. It is characterized by taking out an electrical phenomenon of a living body as an electrical signal.

  The biological signal collection method according to the present invention uses the animal electrode according to claim 6 to insert a measurer's finger into the finger insertion portion of the operation portion, and insert the measurer's finger into the finger insertion portion. In this state, the animal electrode sandwiching portion is brought into contact with an animal (except a person) to take out an electrical phenomenon of the living body as an electrical signal.

An animal electrode according to the present invention includes a sandwiching portion including a pair of sandwiching pieces including a first sandwiching piece and a second sandwiching piece for sandwiching animal body hair, and both sandwiching pieces of the sandwiching portion. A spring portion for urging in the pressing direction, an operation portion for actuating the two clamping pieces away from each other against the elastic force of the spring portion, and the biological information of the animal is derived to the outside as an electrical signal A lead portion for connecting a lead wire, and at least a part of the sandwiching portion and / or the operation portion has a conductive portion formed of a conductive material, and the conductive portion is connected to the lead portion. are electrically connected by sandwiching the hair in the sandwiching portion, electrically contacting the skin and the conductive portion of said animal through the electrically conducting flow animals, the electrical phenomena of the biological from the deriving unit Animal electrodes used for extraction as electrical signals Forming a comb tooth at the tip of the first sandwiching piece, the second sandwiching piece so that the tip end portion or the tip edge portion of the second sandwiching piece comes into contact with the comb tooth of the first sandwiching piece A tip portion of the piece is bent, and a space portion is formed between the second sandwiching piece including the bent portion and the comb teeth.

  In the animal electrode according to the present invention, since the longitudinal direction of the space portion and the longitudinal direction of the comb teeth intersect, the animal body hair held in the space portion is defined as the longitudinal direction of the comb teeth. It is held in the state of being laid in the intersecting direction, and further has an effect of strengthening the holding state of the body hair.

  In the animal electrode according to the present invention, at least a part of the sandwiching portion is configured as a conductive portion, and a liquid retaining member that permeates the conductive fluid between the first sandwiching piece and the second sandwiching piece is provided. Since it is interposed so as to be in contact with at least a part of the conductive part, it is not necessary to apply a conductive fluid to animal body hair or skin, and the conductive fluid adheres to body hair or skin. The amount of the liquid can be reduced, and the wiping of the conductive fluid becomes easy.

  In the animal electrode according to the present invention, the second holding piece is formed with a holding means for holding the liquid retaining member that allows the conductive fluid to permeate. Measurements can be made.

  In the animal electrode according to the present invention, when the animal skin is sandwiched between the first sandwiching piece and the second sandwiching piece, at least a part of the sandwiching part is obtained so as to obtain electrical conduction with the skin. Since it is comprised as an electroconductive part, the electrical phenomenon of a biological body can be taken out as an electrical signal by pinching the skin of an animal between the 1st clamping piece and the 2nd clamping piece.

  In the animal electrode according to the present invention, the operation portion includes a finger insertion portion into which a measurer's finger can be inserted, and the holding portion is brought into contact with the animal in a state where the measurer's finger is inserted into the finger insertion portion. Since the electrode surface for taking out the electrical phenomenon of the living body as an electrical signal is provided, the holding part is brought into contact with the animal with the finger of the measurer inserted into the finger insertion part, and the electrical phenomenon of the living body is used as the electrical signal. It can be taken out.

  In the biological signal collecting method according to the present invention, using the animal electrode according to claim 5, the skin of an animal (except a person) is sandwiched between the first sandwiching piece and the second sandwiching piece. By doing so, the electrical phenomenon of the living body can be easily taken out as an electrical signal.

  In the biological signal collecting method according to the present invention, using the animal electrode according to claim 6, a measurer's finger is inserted into the finger insertion portion of the operation portion, and the measurer's finger is inserted into the finger insertion portion. In this state, the animal electrode can be applied to a required part of the animal by bringing the animal electrode holding portion into contact with an animal (except a person), and the electrical phenomenon of the living body can be easily taken out as an electrical signal. .

<Example 1>
Hereinafter, embodiments of an animal electrode according to the present invention will be described with reference to the accompanying drawings. In each figure, the same components are denoted by the same reference numerals, and redundant description is omitted. 1 and 2 are perspective views showing an embodiment in which the animal electrode according to the present invention is configured as an electrocardiograph electrode. This animal electrode is configured by using a single sheet of conductive stainless steel, phosphor bronze, or the like that has been punched out into a long shape.

  The long metal plate is bent into a U-shape, and includes a first clamping piece 10 on one tip side thereof and a second clamping piece 20 on the other tip side. It is composed. The first sandwiching piece 10 and the second sandwiching piece 20 cooperate to sandwich animal hair. The U-shaped part of the metal plate constitutes a spring part 3 that urges the first clamping piece 10 and the second clamping piece 20 of the clamping part 2 in a direction in which they are pressed against each other.

  The first sandwiching piece 10 and the second sandwiching piece 20 side are located adjacent to the U-shaped spring part 3 and the first sandwiching piece 10 against the elastic force of the spring part 3. It is the operation parts 4 and 4 for operating the 2nd clamping piece 20 in the direction away from each other. The operation portions 4 and 4 are formed with a plurality of protrusions 5 protruding outward, and serve to prevent slipping during operation. By pressing the operation parts 4 and 4 with a finger, the space between the first clamping piece 10 and the second clamping piece 20 can be opened as shown in FIG.

  On one side of one of the operation parts 4 and 4 (in this embodiment, the upper side in FIG. 1), a lead-out part 6 for mounting a terminal protruding in the width direction is provided. A terminal 32 provided at the leading end of the lead wire 31 is riveted to the lead-out portion 6, and the lead-out portion 6 has a function of connecting the lead wire 31 to lead out biological information to the outside. A connector 33 is connected to the tip of the lead wire 31 on the other end side, and the connector 33 can be connected to an electrocardiograph (not shown).

  In this embodiment, since the entire animal electrode is composed of a single conductive metal plate, the entire electrode has a function as a conductive part, and wiring for guiding biological information to the lead-out part 6 is specially provided. There is no need to provide it and it is easy to manufacture. Note that the entire electrode does not necessarily need to be formed of a conductive material, and at least a part of the sandwiching unit 2 and / or the operation unit 4, which is a part for extracting biological information from the skin of an animal, is formed of a conductive material. It is also possible to employ a configuration in which a conductive portion is provided and the conductive portion and the lead-out portion are electrically connected.

  The part from the operation unit 4 to the first holding piece 10 is a slightly narrower connecting part 11 than the others, and the part from the operation unit 4 to the second holding piece 20 includes A hole 12 into which the connecting portion 11 enters is formed. A slit 13 for inserting the connecting portion 11 into the hole 12 is formed from one side of the hole 12 close to the second holding piece 20. The peripheral part of the hole 12 that faces the side part of the connecting part 11 serves as guides 14 and 14 for sliding the connecting part 11, and prevents the connecting part 11 from shifting in the lateral direction X. It has a function. Even if the guides 14 and 14 are used repeatedly, the positional relationship between the first sandwiching piece 10 and the second sandwiching piece 20 in the pair of sandwiching portions 2 is hardly shifted, and the hair can be reliably sandwiched. .

  A plurality of comb teeth 15 are formed at the tip of the first holding piece 10 connected to the connecting portion 11. The longitudinal direction of the comb teeth 15 is the same as the direction in which the electrodes come out when the lead wire 31 connected to the lead-out portion 6 is pulled. Further, the tips of the comb teeth 15 are directed in the opposite direction to the direction in which the electrodes are pulled out when the lead wire 31 is pulled, and are directed to the counter-operation part side.

  The distal end portion 22 of the second sandwiching piece 20 is comb-toothed so that the distal end portion or the distal end edge portion of the second sandwiching piece 20 connected to the operation unit 4 contacts the comb teeth 15 of the first sandwiching piece 10. 15 between the second holding piece 20 including the bent tip 22 and the comb teeth 15, with the full width direction of the holding pieces 10, 20. A space 23 is formed. Here, the longitudinal direction of the space portion 23 and the longitudinal direction of the comb teeth 15 are configured to intersect at a substantially right angle.

  For example, a plurality of elongated holes 24 parallel to the space 23 are formed between the distal end portion 22 and the hole 12 in the second holding piece 20. Further, a long hole 25 is formed at a position slightly shifted from the position corresponding to the long hole 24 in the first holding piece 10. In this embodiment, the number of the long holes 25 is one, but a plurality of holes are formed according to the size of the first clamping piece 10 or as necessary. In a state where the first clamping piece 10 and the second clamping piece 20 are in contact with each other, a side view of the animal electrode is as shown in FIG. 3, and the clamping part 2 and one of the operation parts 4 are substantially the same. A metal plane S1 having a large area that is in a plane and includes the holding unit 2 and the one operation unit 4 comes close to the skin of the animal.

<Biological signal collection method: Part 1>
The animal electrode configured as described above is used, for example, as follows. The connector 33 is connected to a connector such as an electrocardiograph. Next, the operation parts 4 and 4 are pressed to open the first clamping piece 10 and the second clamping piece 20 (FIG. 8).

  In the above state, the tip of the comb teeth 15 in the first holding piece 10 is inserted from the animal hair 91 toward the skin so that the comb teeth 15 are as close as possible to the root of the body hair, After the sufficient hair 91 is sandwiched between the slit portions 15, the pressing of the operation parts 4, 4 is released. Since the comb teeth 15 are directed to the counter-operation part side, the comb teeth 15 can be mounted while being opened and pushed, and the hair 91 can be pinched naturally without difficulty. Accordingly, as shown in FIG. 9, the body hair 91 sandwiched between the space portion 23 and the comb teeth 15 is held in the space portion 23, and the body hair 91 also enters the long holes 24, 25. The body hair 91 is sandwiched between the flat portions of the second sandwiching piece 20 and between the tip end portion or the tip edge portion of the second sandwiching piece and the comb teeth 15. In this state, application or spraying of a conductive fluid is performed in the vicinity of the hair 91 and the electrode centering on the part (area S1 in FIG. 3) from the sandwiching part 2 to the operation part 4.

  As a result, the conductive fluid permeates between the animal electrode and the body hair 91 around the substantially same plane portion extending from the sandwiching portion 2 to the operation portion 4, and the animal fluid is more reliably passed through the conductive fluid. Electrical contact between the skin and the electrode can be obtained, and biological information can be extracted. Since the longitudinal direction of the space portion 23 and the longitudinal direction of the comb teeth 15 intersect each other at a substantially right angle, even if the lead wire 31 is pulled, the slit between the comb teeth 15 and 15 is formed. On the other hand, the hair 91 held in the space 23 so as to intersect at a substantially right angle can prevent the animal electrode from moving and prevent the electrode from falling off.

<Biological signal collection method: 2>
The connector 33 is connected to a connector such as an electrocardiograph. A conductive fluid is applied or sprayed in advance on the skin of an animal (except a person) at a position where an electrode is to be attached. Next, the operation parts 4 and 4 are pressed against the elastic force of the spring part 3 in the directions of arrows X1 and X2 as shown in FIG. 10, and the first holding piece 10 and the second holding piece 20 are Open a gap (FIG. 11).

  The corresponding skin region of the animal previously picked or the like is sandwiched in the gap 92 shown in FIG. 11 between the first sandwiching piece 10 and the second sandwiching piece 20, and an electrocardiograph or the like is operated to check the electrical phenomenon of the living body. A signal collecting method is realized by taking out as an electric signal. Here, when the animal skin is sandwiched in the gap 92 between the first sandwiching piece 10 and the second sandwiching piece 20, the sandwiching section 2 (at least the sandwiching section 2) so as to obtain electrical conduction with the skin. Some are made of a conductive material. Thus, the electrical phenomenon of the living body can be easily extracted as an electrical signal.

<Biological signal collection method: Part 3>
The connector 33 is connected to a connector such as an electrocardiograph. The practitioner performs insulation by wearing rubber gloves 93 as shown in FIG. This is to prevent the biological signal of the practitioner from being mixed. Next, the finger in the operation unit 4 is arranged so that the second holding piece 20 side (the electrode surface 94 of FIG. 12 made of a conductive material) on which the comb teeth 15 are formed is the palm side of the operator's hand. For example, the index finger of the measurer is inserted into the insertion portion 95 in the direction of the arrow X3, the middle finger protrudes in the direction of the arrow X4, and the connecting portion 11 is sandwiched between the index finger and the middle finger (FIG. 13).

  Electrolyte is applied to the body hair and skin of the electrode mounting part (for example, both forelimbs) 96 in the animal, and the electrode surface 94 is pushed by grasping this part with the finger part with the electrode and the index finger as shown in FIG. By making contact, the animal electrode can be applied to a required part of the animal, and the electrical phenomenon of the living body can be easily taken out as an electrical signal.

<Modification 1>
FIG. 4 shows an embodiment relating to the shape of the space 23 formed by the tip 22 of the second holding piece 20. 4A, the shape of the space portion 23 is a semi-cylindrical shape as in FIGS. 1 and 2, and FIG. 4B shows the shape of the space portion 23 having a triangular prism shape. c) The space 23 has a quadrangular prism shape. In the animal electrode shown in FIG. 4, the tip of the comb tooth 15 protrudes forward of the tip 22 of the second holding piece 20, but the tip of the comb tooth 15 is the tip of the second holding piece 20. It is good also as a structure which does not protrude before the part 22. FIG.

<Modification 2>
FIG. 5 shows an embodiment relating to the shape of the comb teeth 15 provided on the first holding piece 10. FIG. 5A shows an example in which the tips of the comb teeth 15 are oriented in a direction that is 180 degrees from the direction in which the lead wire is pulled, as in FIGS. FIG. 5B shows an example in which the tips of the comb teeth 15 are oriented in a direction that is 90 degrees from the direction in which the electrodes come out when the lead wire is pulled. In the example shown in FIG. 5B, the tip of the comb tooth 15 is rotated 90 degrees clockwise relative to the example shown in FIG. The direction may be a direction rotated 90 degrees counterclockwise with respect to the example shown in FIG. In the configuration example of FIG. 5B, even if the lead wire 31 is pulled, the comb teeth 15 are caught by the body hair and work to prevent the movement, so that the electrode does not easily come off.

  The example shown in FIG. 5 (c) shows an animal electrode in which the direction of the tip of the comb tooth 15 is rotated by 180 degrees (reverse direction) with respect to the example shown in FIG. 5 (a). The example shown in FIG. 5 (d) shows an animal electrode in which the tips of the comb teeth 15 are oriented in the same manner as in FIG. 5 (c), and the comb teeth 15 are provided on both sides of the connecting portion 11. The example shown in FIG. 5 (e) and FIG. 5 (f) is the example in which the tip direction of the comb tooth 15 is shown in FIG. 5 (a) and FIG. 5 (c) (or FIG. 5 (d)). The tips of the comb teeth 15 have comb teeth 15f that are oriented in a direction that makes 180 degrees with respect to the direction in which the electrodes come out, and the comb teeth 15f have comb teeth 15b that face in a direction that makes 180 degrees. Yes. 5C to 5F, even when the lead wire 31 is pulled, the comb teeth 15 are caught by the body hair and work to prevent the movement, so that the electrode is difficult to be removed. .

  Further, the example shown in FIG. 5G shows an animal electrode in which the direction of the tip of the comb teeth 15 is a direction rotated 135 degrees with respect to the example shown in FIG. In the example shown in FIG. 5G, the tip direction of the comb teeth 15 is a direction rotated 135 degrees clockwise relative to the example shown in FIG. The direction of the portion may be a direction rotated 135 degrees counterclockwise with respect to the example shown in FIG. Furthermore, comb teeth 15 are added to the example shown in FIG. 5 (g) so that the tip portion is rotated 135 degrees counterclockwise with respect to the example shown in FIG. 5 (a). 11 may be an animal electrode provided with comb teeth 15 on both sides. Even in the animal electrode according to these examples, even if the lead wire 31 is pulled, the comb teeth 15 are caught by the body hair and work to prevent the movement, so that the electrode does not easily come off. The left and right angles of the comb teeth 15 with respect to the example shown in FIG. 5A are not limited to the above examples, and are 0 in consideration of the ease of electrode mounting and the difficulty of electrode removal. It can be set in the range of from 180 degrees to 180 degrees. Generally, when the angle is small, the electrode is easy to attach, and when the angle is large, the electrode is difficult to come off.

  In the case of the example shown in FIG. 5B or FIG. 5G, if the configuration of the tip 22 in the second holding piece 20 is not changed from that in FIGS. There is a possibility that the longitudinal direction of the space portion 23 formed by the distal end portion 22 of the second sandwiching piece 20 and the longitudinal direction of the comb teeth 15 do not intersect. Accordingly, in the animal electrode of the example shown in FIGS. 5B and 5G, the direction of the distal end portion 22 in the second holding piece 20 is changed in the width direction, and the comb teeth 15 and the space portion 23 are changed. It is also possible to configure so that the intersection with the same occurs as in the case of FIG.

<Second embodiment>
FIG. 6 shows a side view of the animal electrode according to the second embodiment. In this embodiment, in a state where the first holding piece 10 and the second holding piece 20 are in contact, the first holding piece 10 and the second holding piece 10 are linearly formed from the intermediate portion between the operation portions 4 and 4. The clamping part 2 with which the clamping piece 20 overlaps is substantially in the same plane, and is electrically connected in close proximity to the animal's skin by a metal plane S2 having a large area from the clamping part 2 to the operation part 4 on the same plane. Can be obtained. For this reason, although it is not an area as large as the metal plane S1 shown in FIG. 3, since an electrical contact is obtained exactly, biological information can be taken out stably.

<Third embodiment>
FIG. 7 shows a perspective view of an animal electrode according to the third embodiment. In this embodiment, the portion from the operation unit 4 to the first clamping piece 10 has a slit 41 in the center, and both side portions of the long slit 41 become slightly narrow guide portions 42 and 42. ing. Further, a portion from the operation unit 4 to the second holding piece 20 is a narrow communication unit 43 that enters the slit 41. For example, in the manufacturing process, the coupling portion 44 with the first sandwiching piece 10 in one of the guide portions 42 and 42 is separated, and the second sandwiching piece 20 is reached via the separated coupling portion 44. The connecting portion 43 is inserted into the slit 41, and then the connecting portion 44 is closed by welding or the like. A portion of the guide portions 42, 42 facing the side portion of the connecting portion 43 serves as a guide for sliding the connecting portion 43, and has a function of preventing the connecting portion 43 from shifting in the lateral direction. . Also with this configuration, as in the first embodiment, the positional relationship between the first sandwiching piece 10 and the second sandwiching piece 20 is hardly displaced even when used repeatedly, so that hair can be reliably sandwiched. it can.

  In addition, about this 3rd Example, about the shape of the space part 23 which the front-end | tip part 22 of the 2nd clamping piece 20 comprises, the structure of the modification already demonstrated using FIG. 4 is employable. Moreover, about this 3rd Example, about the shape of the comb tooth 15 provided in the 1st clamping piece 10, the structure of each modification demonstrated using above-mentioned FIG. 5 is employable. Furthermore, with respect to the side shape, the configuration as shown in the side view of the animal electrode according to the second embodiment shown in FIG. 6 can be adopted.

<Fourth embodiment: Part 1>
The fourth embodiment of the present invention is characterized in that a liquid retaining member that allows electrolyte to permeate is interposed between the first sandwiching piece 10 and the second sandwiching piece 20. The liquid retaining member is a concept including sponge, non-woven fabric, felt, sponge and the like, and is generally porous but not necessarily porous. Although it is convenient that the electrolytic solution is previously infiltrated before attaching the liquid retaining member to the electrode, the electrolytic solution may be infiltrated into the liquid retaining member after the liquid retaining member is attached to the electrode.

  15 and 16 show an animal electrode according to Part 1 of the fourth embodiment. In this embodiment, the liquid retaining member 50 is a flat plate-shaped rectangular parallelepiped. The planar area is comparable to the planar area of the second clamping piece 20. The pair of side surfaces 51, 51 of the liquid retaining member 50 is provided with a communication hole 52. The second clamping piece 20 is inserted into the communication hole 52 from the tip, and is used in a state of wrapping the second clamping piece 20 as shown in FIG. During use, the electrolyte solution penetrates into the liquid retaining member 50.

<Fourth embodiment: Part 2>
17 and 18 show an animal electrode according to Part 2 of the fourth embodiment. In this embodiment, the liquid retaining member 50A has a flat plate-shaped rectangular parallelepiped. The liquid retaining member 50 </ b> A is attached to the bottom surface (the surface facing the first sandwiching piece 10) of the second sandwiching piece 20. As shown in FIG. 18 (a), the adhesive 53 for sticking is provided at both side edges of the surface, and provided at the center of the surface as shown in FIG. 18 (b). Further, if a conductive material is used as the adhesive 53, there is a material provided on the entire surface as shown in FIG.

<Fourth embodiment: Part 3>
19 and 20 show an animal electrode according to Part 3 of the fourth embodiment. In this embodiment, the liquid retaining member 50B is a flat plate-shaped rectangular parallelepiped. The liquid retaining member 50B includes projections 54 and 54 corresponding to the long holes 24 and 24 formed in the second holding piece 20 on the surface thereof, and a bottom surface (first holding piece 20) of the second holding piece 20. 10 (surface facing 10) from the side. Note that an adhesive 53 for sticking may be provided on the surface other than the protrusions 54 and 54.

<Fourth embodiment: Part 4>
FIG. 21 shows an animal electrode according to Part 4 of the fourth embodiment. In this embodiment, the liquid retaining member 50 </ b> C does not need to include the adhesive 53 in the one shown in FIG. 18, and is held by the second holding piece 20 by the band 55. The band 55 is preferably made of conductive rubber or the like from the viewpoint of conductivity.

<Fourth embodiment: Part 5>
FIG. 22 shows an animal electrode according to Part 5 of the fourth embodiment. In this embodiment, the liquid retaining member 50 </ b> D has a columnar shape and is held by the distal end portion 22 </ b> A of the second holding piece 20. The distal end portion 22A corresponds to the columnar liquid retaining member 50D having a larger diameter than the distal end portion 22 in the second holding piece 20 described so far, and is also retained by the distal end portion 22A. A part of 50D (about one-fourth of the diameter) is closer to the first clamping piece 10 than the plane connecting the plane of the second clamping piece 20 and the tip of the tip 22A (the lower side in the figure). It is comprised so that it may protrude. When the tip 22A has a diameter enough to hold the cylindrical liquid-retaining member 50D, or a conductive adhesive is applied to the side surface of the liquid-retaining member 50D that contacts the inner wall of the tip 22A. Is preferred.

<Fourth embodiment: Part 6>
23 and 24 show an animal electrode according to Part 6 of the fourth embodiment. In this embodiment, the size of the liquid retaining member 50E is as described above, but when placed on the first sandwiching piece 10 below the second sandwiching piece 20, the connecting portion 11 A notch 56 is formed in the corresponding part. When the liquid retaining member 50 </ b> E is mounted, the lower end portion of the connecting portion 11 comes into contact with the back side wall portion of the notch portion 56. It is preferable that an adhesive is applied to the abutting portion or the surface facing the first clamping piece 10.

<Fifth embodiment: Part 1>
In the fifth embodiment, instead of the configuration in which the tip end portion 22 or the tip edge portion of the second clamping piece 20 in the fourth embodiment contacts the comb teeth 15 of the first clamping piece 10, A holding means for holding the liquid retaining member is formed on the second sandwiching piece. The configuration of the second clamping piece is different from that described above.

  FIG. 25 shows an animal electrode according to Part 1 of the fifth embodiment. In this embodiment, the arm portion 61 extending in the direction of the comb teeth 15 from the spring portion 3 side is bent at a position corresponding to the comb teeth 15 so as to be substantially perpendicular to the longitudinal direction of the comb teeth 15 (holding means). ) 60. The liquid retaining member 50F is held in a state where the holding rod 60 is inserted into the shaft of the columnar liquid retaining member 50F having a hemispherical portion on one end side.

<Fifth embodiment: Part 2>
FIG. 26 shows an animal electrode according to Part 2 of the fifth embodiment. In this embodiment, the arm portion 61 extending in the direction of the comb teeth 15 from the spring portion 3 side bends to the connecting portion 11 in the vicinity beyond the connecting portion 11 and extends straight to the center side of the comb teeth 15 ( Holding means) 60A. The liquid retaining member 50F is held in a state where the holding rod 60A is inserted into the shaft of the columnar liquid retaining member 50F.

<Fifth embodiment: Part 3>
FIG. 27 shows an animal electrode according to Part 3 of the fifth embodiment. In this embodiment, the portion of the holding bar 60A shown in FIG. 26 is replaced with a cylindrical bar 60B. A pin 72 having a head 71 is inserted into the hole 62 of the cylindrical rod 60B. Both ends of the columnar liquid retaining member 50G are cut perpendicular to the shaft, and the liquid retaining member 50G is held in a state where the pin 72 is inserted into the shaft of the liquid retaining member 50G.

<Fifth embodiment: Part 4>
FIG. 28 shows an animal electrode according to Part 4 of the fifth embodiment. In this embodiment, the arm portion 61 extending in the direction of the comb teeth 15 from the spring portion 3 side forms a base portion 64 that extends to the connecting portion 11 in the vicinity beyond the connecting portion 11, and a plurality of portions extending forward from the base portion 64. Comb teeth 63, 63 are provided.

  The liquid retaining member 50H has a flat plate-shaped rectangular parallelepiped. A hole 55 corresponding to the base portion 64 is formed in one side surface of the liquid retaining member 50H. If holes slightly narrower than the comb teeth 63, 63 are formed at positions corresponding to the comb teeth 63, 63 in the liquid retaining member 50H, the comb teeth 63, 63 are inserted to fix the liquid retaining member 50H. It is suitable as a structure to hold.

<Fifth embodiment: Part 5>
FIG. 29 shows an animal electrode according to Part 5 of the fifth embodiment. In this embodiment, the configuration of the second holding piece 20A is the same as that of the embodiment of FIG. The liquid retaining member 50I has a spherical shape. A hole 64 is formed in the first holding piece 10A so that the height of the liquid retaining member 50I is about one fifth.

  A pin 72 having a head 71A is inserted into the hole 62 of the cylindrical rod 60B. The liquid retaining member 50I is held in a state where the pin 72 is inserted into the shaft of the liquid retaining member 50I.

<Fifth embodiment: Part 5>
FIG. 30 shows an animal electrode according to Part 6 of the fifth embodiment. In this embodiment, a hemispherical hook-like holding portion 65 is provided with the opening facing downward at the tip of the cylindrical rod 60B in the electrode of FIG. The liquid retaining member 50J is a sphere like the liquid retaining member 50I. However, the adhesive is applied to the surface in contact with the holding portion 65 to ensure the holding.

  The shapes of the liquid retaining members of the fourth and fifth embodiments described above are not limited to those illustrated. For example, as the rectangular parallelepiped shape, various shapes such as a disk shape can be used.

  In the fourth embodiment and the fifth embodiment described above, since a liquid retaining member that permeates the electrolytic solution is interposed, work such as application of electrolyte to the body hair and skin of the animal becomes unnecessary. In addition, the amount of the electrolytic solution adhering to body hair and skin can be reduced, and there is an effect that the wiping off of the electrolytic solution becomes easy.

  The electrodes according to the fourth and fifth embodiments described above are applied to the biological signal collection method described with reference to FIGS. 8 and 9 and the biological signal collection method described with reference to FIGS. It is preferable to use it. Although it depends on the state of skin (slack or stretched), of course, the living body takes out the electrical phenomenon of the living body as an electrical signal by contacting the animal with the skin described with reference to FIGS. It can be used in a signal collection method.

The perspective view which shows the 1st Example of the electrode for animals which concerns on this invention. The perspective view which shows the 1st Example of the electrode for animals which concerns on this invention. The figure which shows the side surface shape of the 1st Example in the electrode for animals which concerns on this invention. The figure which shows the Example which concerns on the shape of the space part which the front-end | tip part of the 2nd clamping piece in the electrode for animals which concerns on this invention comprises. The figure which shows the Example which concerns on the shape of the comb tooth provided in the 1st clamping piece in the electrode for animals which concerns on this invention. The figure which shows the side shape of the 2nd Example in the electrode for animals which concerns on this invention. The perspective view which shows the 3rd Example of the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 1st biological signal collection method using the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 1st biological signal collection method using the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 2nd biological signal collection method using the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 2nd biological signal collection method using the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 3rd biological signal collection method using the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 3rd biological signal collection method using the electrode for animals which concerns on this invention. The figure which shows the attachment procedure of the electrode for implement | achieving the 3rd biological signal collection method using the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 4th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 5th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 5th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 5th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 5th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 5th Example of the electrode for animals which concerns on this invention. The perspective view which shows one form in the 5th Example of the electrode for animals which concerns on this invention.

Explanation of symbols

2 Nipping part 3 Spring part 4 Operation part 10, 10A 1st clamping piece 11 Connection part 12 Hole 13 Slit 14 Guide 15, 15b, 15f Comb teeth 20, 20A 2nd clamping piece 22 Tip part 22A Notch part 23 Space part 24, 25 Long hole 31 Lead wire 32 Terminal 33 Connector 41 Slit 42 Guide part 43 Connecting part 50, 50A-50J Liquid retaining member 65 Holding part

Claims (8)

A sandwiching section comprising a pair of sandwiching pieces composed of a first sandwiching piece and a second sandwiching piece for sandwiching animal hair; and
A spring portion that urges the holding pieces of the holding portion in a direction in which the holding pieces are pressed against each other;
An operation unit for operating both the clamping pieces in a direction away from each other against the elastic force of the spring part;
A lead part for connecting a lead wire to lead the biological information of the animal to the outside as an electrical signal ,
At least a part of the sandwiching part and / or the operation part has a conductive part formed of a conductive material,
The conductive portion is electrically connected to the lead-out portion;
Sandwiching said hair in the sandwiching portion, electrically contacting the said skin of said animal conductive portion through the conductive current animal use electrical phenomena of the biological from the outlet portion to retrieve as the electrical signal In animal electrodes,
Forming a comb tooth at the tip of the first clamping piece;
The tip of the second clamping piece is bent so that the tip end or tip edge of the second clamping piece contacts the comb teeth of the first clamping piece, and the bent part An animal electrode, wherein a space is formed between the second sandwiching piece including the comb teeth and the comb teeth.   The animal electrode according to claim 1, wherein the longitudinal direction of the space portion and the longitudinal direction of the comb teeth intersect with each other.   At least a part of the sandwiching part is configured as a conductive part, and a liquid retaining member that permeates the conductive fluid between the first sandwiching piece and the second sandwiching piece is at least a part of the conductive part. The animal electrode according to claim 1, wherein the animal electrode is interposed so as to come into contact.   The tip of the second clamping piece is bent so that the tip end or tip edge of the second clamping piece contacts the comb teeth of the first clamping piece, and the bent part In place of the configuration in which a space is formed between the second sandwiching piece including the comb teeth and the second sandwiching piece, the second sandwiching piece has a holding means for holding a liquid retaining member that allows the conductive fluid to permeate. The animal electrode according to claim 1, wherein the animal electrode is formed.   In order to realize a signal collecting method for extracting an electrical phenomenon of a living body as an electrical signal by sandwiching animal skin between the first sandwiching piece and the second sandwiching piece, the first sandwiching piece and the second sandwiching piece The at least part of the clamping part is comprised as an electroconductive part so that electrical conduction may be obtained between skin when the skin of an animal is pinched | interposed between pieces. The animal electrode according to claim 1.   The operation unit includes a finger insertion part into which a measurer's finger can be inserted. With the finger of the measurer inserted into the finger insertion part, the holding part is brought into contact with the animal, and the electrical phenomenon of the living body is converted into an electrical signal. The animal electrode according to any one of claims 1 to 5, further comprising an electrode surface for taking out.   Using the animal electrode according to claim 5, the skin of an animal (excluding a person) is sandwiched between the first sandwiching piece and the second sandwiching piece, thereby taking out an electrical phenomenon of the living body as an electrical signal. A biological signal collecting method.   Using the animal electrode according to claim 6, a measuring person's finger is inserted into the finger insertion part of the operation part, and the holding part of the animal electrode is inserted with the measuring person's finger inserted into the finger insertion part. A biological signal collection method, wherein an electrical phenomenon of a living body is taken out as an electrical signal by contacting an animal (except a person).

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