WO2014155423A1 - Wearable device for electrical stimulation - Google Patents

Wearable device for electrical stimulation Download PDF

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Publication number
WO2014155423A1
WO2014155423A1 PCT/JP2013/002190 JP2013002190W WO2014155423A1 WO 2014155423 A1 WO2014155423 A1 WO 2014155423A1 JP 2013002190 W JP2013002190 W JP 2013002190W WO 2014155423 A1 WO2014155423 A1 WO 2014155423A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical stimulation
metal plate
formed
plurality
protruding pieces
Prior art date
Application number
PCT/JP2013/002190
Other languages
French (fr)
Japanese (ja)
Inventor
章平 神谷
龍二 秋本
良之 臼井
Original Assignee
株式会社ホーマーイオン研究所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ホーマーイオン研究所 filed Critical 株式会社ホーマーイオン研究所
Priority to PCT/JP2013/002190 priority Critical patent/WO2014155423A1/en
Publication of WO2014155423A1 publication Critical patent/WO2014155423A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/321Electromedical belts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/0404Electrodes for external use
    • A61N1/0472Structure-related aspects
    • A61N1/0484Garment electrodes worn by the patient

Abstract

[Problem] To minimize variations in current density in a belt-like wearable device for electrical stimulation that provides electrical stimulation to the human body. [Solution] This belt-like wearable device for electrical stimulation uses electrical signals outputted from an electrical signal output device to provide electrical stimulation to the human body, and is characterized by having a metal plate that extends in a belt shape, and a non-conductive holding layer that holds the metal plate, said metal plate having an elongated body part, and a plurality of protruding pieces formed in a staggered manner on both ends of the elongated body part in the short direction. The plurality of protruding pieces comprises a plurality of first protruding pieces formed on one end in the short direction, and a plurality of second protruding pieces formed on the other end in the short direction. The first protruding pieces are formed at a size corresponding to the interval of adjacent second protruding pieces. The second protruding pieces are formed at a size corresponding to the interval of adjacent first protruding pieces.

Description

Electrical stimulator

The present invention relates to an electrical stimulation wearing device, and more particularly to a technique for applying electrical stimulation by transmitting an electrical signal output from an electrical signal output device to a human body.

2. Description of the Related Art Conventionally, in the medical and sports industries, a technique related to electrical muscle stimulation (hereinafter referred to as EMS) that induces skeletal muscle contraction is used for muscle strengthening, incontinence management, spinal deformity management, spasticity management, and the like. ing. As a device for performing electrical stimulation, a belt-type electrode is known in which conductive rubber is attached to the skin contact surface of a belt having a length of several hundred millimeters, and an electrode terminal is attached to the approximate center of the conductive rubber. And the electrical stimulation using a belt-type electrode can be performed by connecting the output cord extended from an electric signal output device with respect to this electrode terminal.

Japanese Patent No. 44809797

However, in the case of the above-described belt-type electrode, since the electric resistance is different in the longitudinal direction of the belt-type electrode, the current density decreases as the distance from the electrode terminal decreases, and the obtained electrical stimulation becomes weak. In order to obtain good electrical stimulation at the end of the belt-type electrode, it is necessary to increase the output, but when the output increases, the electrical stimulation in the vicinity of the electrode terminal becomes strong, giving the user unpleasant feeling. Then, this invention aims at suppressing the variation in a current density in the strip | belt-shaped electrical stimulation installation tool which provides an electrical stimulation to a human body.

In order to solve the above problems, an electrical stimulation wearing device of the present invention is (1) a belt-like electrical stimulation wearing device that applies electrical stimulation to a human body using an electrical signal output from an electrical signal output device. A metal plate extending in a strip shape and a non-conductive holding layer for holding the metal plate, wherein the metal plate is staggered at both ends of the long main body portion and the short main body portion in the short direction. And a plurality of projecting pieces formed on the substrate.

(2) In the configuration of (1) above, the plurality of protruding piece portions are a plurality of first protruding piece portions formed at one end portion in the short direction and a plurality formed at the other end portion in the short direction. The first protruding piece portion is formed in a size corresponding to the interval between the adjacent second protruding piece portions, and the second protruding piece portion is adjacent to the second protruding piece portion. It is characterized by being formed in a size corresponding to the interval between one protruding piece. According to the structure of (2), since the dimension of the short direction of a metal plate becomes substantially equal in all the area | regions, the dispersion | variation in the electrical resistance not only in a long direction but a short direction can be suppressed. Thereby, better electrical stimulation can be provided.

(3) In the configuration of (1) or (2), a boundary between the long main body portion and the plurality of protruding piece portions can be formed in an R shape. According to the structure of (3), the rigidity reduction of a metal plate can be suppressed.

(4) In the configurations of (1) to (3) above, a nonwoven fabric can be provided at a position facing the holding layer with the metal plate interposed therebetween.

(5) In the configurations of (1) to (3), a conductive layer is provided at a position facing the holding layer with the metal plate interposed therebetween, and a nonwoven fabric is provided at a position facing the metal plate with the conductive layer interposed therebetween. be able to.

(6) In the above configurations (1) to (5), the metal plate has a protruding portion extending in the thickness direction of the metal plate, and the electrode terminal can be fixed to the protruding portion.

According to the present invention, variations in current density can be suppressed in a band-shaped electrical stimulation wearing device that applies electrical stimulation to a human body.

It is a front view of the mounting tool for electrical stimulation. It is the enlarged view in a part of metal plate which expanded the area | region enclosed with the dotted line of FIG. It is a rear view of the mounting tool for electrical stimulation. FIG. 2 is a cross-sectional view of the electrical stimulation wearing device of FIG. 1 cut along the AA cross section. It is the enlarged view to which the area | region enclosed with the circle of FIG. 4 was expanded. It is an enlarged view of a modification.

(First embodiment)
With reference to the drawings, an electrical stimulation wearing device according to an embodiment of the present invention will be described. FIG. 1 is a front view of a wearing device for electrical stimulation. FIG. 2 is an enlarged view of a part of a metal plate in which a portion surrounded by a dotted line in FIG. 1 is enlarged. FIG. 3 is a rear view of the electrical stimulation wearing device. FIG. 4 is a cross-sectional view of the electrical stimulation wearing tool of FIG. 1 taken along the line AA. FIG. 5 is an enlarged view of an encircled region in FIG.

Referring to these drawings, the electrical stimulation wearing device 1 extends in a band shape, and includes a metal plate 10, a holding layer 20, and a nonwoven fabric sheet 30. In addition, the nonwoven fabric sheet 30 is illustrated only in FIG. 5 and is omitted in other drawings. With reference to FIG. 2, the metal plate 10 includes a long main body portion 11, a plurality of first protruding piece portions 12, and a plurality of second protruding piece portions 13. The long main body 11 extends in the longitudinal direction of the electrical stimulation wearing device 1 (hereinafter referred to as the long direction) and is formed in a substantially rectangular shape. In addition, the area | region between the dashed-dotted lines among the metal plates 10 is equivalent to the elongate main-body part 11. FIG.

The 1st protrusion piece part 12 and the 2nd protrusion piece part 13 are formed alternately. In other words, the 1st protrusion piece part 12 and the 2nd protrusion piece part 13 are arrange | positioned at zigzag form, and the 2nd protrusion piece part 13 is in the position corresponding to the clearance gap between the 1st protrusion piece parts 12 located in a line with the said elongate direction. The first protruding piece 12 is formed at a position corresponding to the gap between the second protruding pieces 13 arranged in the longitudinal direction.

Here, when the dimension of the first protruding piece 12 in the longitudinal direction is X1, and the gap of the second protruding piece 13 aligned in the longitudinal direction is Y0, the dimension X1 and the gap Y0 are formed to be substantially equal. Is preferred. Further, when the dimension of the second projecting piece 13 in the longitudinal direction is Y1, and the gap of the first projecting piece 12 aligned in the longitudinal direction is X0, the dimension Y1 and the gap X0 are formed substantially equal. Is preferred. That is, it is preferable that the metal plate 10 is formed so that dimensions in a direction orthogonal to the long direction (hereinafter referred to as the short direction) are substantially equal in all regions.

An R-shaped portion 12 a is formed at a location where the long main body portion 11 and the first protruding piece portion 12 are connected. An R-shaped portion 13 a is formed at a location where the long main body portion 11 and the second protruding piece portion 13 are connected. By forming these R-shaped portions 12a and 13a, the rigidity of the metal plate 10 can be increased. Titanium can be used for the metal plate 10.

Referring to FIG. 5, a screw portion (corresponding to a protruding portion) 14 having a screw groove on the outer peripheral surface is formed at substantially the center in the longitudinal direction of the metal plate 10. The screw portion 14 extends in the plate thickness direction of the metal plate 10, and the electrode terminal 15 is fastened. When the electrode terminal 15 is fastened to the screw portion 14, the metal plate 10 and the electrode terminal 15 become conductive. Note that the screw portion 14 may be a protruding portion having no thread groove. In this case, the protruding portion and the electrode terminal 15 can be fixed using caulking means.

Here, the metal plate 10, the screw portion 14, and the electrode terminal 15 can be assembled in advance as a unit product. The metal plate 10 can be held by the holding layer 20 by performing insert molding in which a resin as a base material of the holding layer 20 is injected while the unit product is set in a mold. The electrode terminal 15 protrudes from the holding layer 20. However, the holding layer 20 can be made of non-conductive rubber. In this case, the metal plate 10 can be held by forming a concave housing portion for housing the metal plate 10 in the holding layer 20 and fixing the metal plate 10 housed in the concave housing portion with an adhesive. .

Referring to FIG. 5, the nonwoven fabric sheet 30 is disposed at a position facing the holding layer 20 with the metal plate 10 interposed therebetween. With reference to FIG.1 and FIG.3, the pinching part 50 is provided in the position which pinches the four corners of the nonwoven fabric sheet 30, the fixed position which pinches and fixes the nonwoven fabric sheet 30, and pinching the nonwoven fabric sheet 50 It is possible to operate between non-fixed positions that allow replacement without In the wearing state of the electrical stimulation wearing device 1, the nonwoven fabric sheet 30 contacts the human body.

A small surface fastener 60 is provided on one surface of the holding layer 20 (see FIG. 1), and a large surface fastener 70 is provided on the other surface of the holding layer 20 (see FIG. 3). By adjusting the attachment / detachment position of the small surface fastener 60 with respect to the large surface fastener 70, the electrical stimulation attachment device 1 can be attached to a desired stimulation site.

Next, how to use the electrical stimulation wearing device 1 will be described. The electrical stimulation wearing device 1 of the present embodiment is used in pairs of a positive electrode type and a negative electrode type. The positive-type electrical stimulation wearing device 1 is attached to a stimulation site, the negative-type electrical stimulation wearing device 1 is attached to another stimulation site, and an electrical signal is applied to each electrode terminal 15 of these electrical stimulation wearing devices 1. Electrical stimulation can be applied by connecting a cord extending from an output device (not shown). The stimulation site may be, for example, an ankle, above the knee, or waist. Further, the stimulation site may be a plurality of locations. For example, it is possible to stimulate the left and right ankles and the left and right knees using the four electrical stimulation wearing devices 1. Moreover, you may mount | wear each with a waist | hip | lumbar part, a knee top, and an ankle using the three mounting devices 1 for electrical stimulation. In this case, the polarity of the electrical stimulation wearing device 1 mounted on the knee can be the positive polarity, and the polarity of the electrical stimulation mounting device 1 mounted on the waist and ankle can be the negative polarity.

Here, since the metal plate 10 of this embodiment is configured in a staggered shape in which the first protruding piece portions 12 and the second protruding piece portions 13 are alternately formed, the flexibility of the electrical stimulation wearing device 1 is increased. be able to. Thereby, the mounting device 1 for electrical stimulation can be bent and it can be made to adhere | attach easily on a desired stimulation site | part.

When the current path is narrowed by forming the metal plates 10 in a zigzag shape, the electrical resistance may increase and heat may be generated. Therefore, the metal plate 10 as a conductive plate is usually formed in a flat plate shape. However, in the case of EMS, since the output is low, even if the metal plates 10 are formed in a staggered pattern, heat generation that causes discomfort to the user does not occur. That is, the present invention has been created based on the knowledge that cannot be easily conceived from the technical common sense that the metal plates 10 are formed in a staggered pattern.

Further, by using the metal plate 10 extending in a strip shape instead of the rubber electrode, variation in electric resistance in the longitudinal direction is suppressed. Thereby, the electrical stimulation in the elongate direction is stabilized and a favorable electrical stimulation can be provided.

Further, as shown in FIG. 2, by forming the dimension X1 and the gap Y0 substantially equal and the dimension Y1 and the gap X0 substantially equal, the dimension in the short direction of the metal plate 10 becomes substantially equal in all regions. Variations in electrical resistance not only in the long direction but also in the short direction can be suppressed. Thereby, better electrical stimulation can be provided.

Further, as shown in FIG. 2, the metal plate 10 is punched by shifting the phase of the projections and depressions, so that the loss of the metal material can be eliminated and the cost can be reduced.

Moreover, since the hydrophilic film is formed by disposing the nonwoven fabric sheet 30 on the surface that comes into contact with the human body, the stimulation sensation can be softened. By attaching the nonwoven fabric sheet 30 to the pinching part 50 so as to be detachable, the nonwoven fabric sheet 30 can be easily replaced, and the hygiene aspect can be improved.

(Modification 1)
FIG. 6 is a partial cross-sectional view of the electrical stimulation wearing tool of the first modification, and corresponds to FIG. Elements having the same functions as those of the embodiment are given the same reference numerals. In the electrical stimulation wearing device 100 of this modification, a conductive layer 80 is interposed between the nonwoven fabric sheet 30 and the metal plate 10. By providing the conductive layer 80, an energization current is smoothed and a good feeling of stimulation can be imparted. A conductive resin or the like can be used for the conductive layer 80.

DESCRIPTION OF SYMBOLS 1 100 Electrical stimulation mounting tool 10 Metal plate 11 Long main-body part 12 1st protrusion piece part 13 2nd protrusion piece part 14 Screw part 15 Electrode terminal 20 Holding layer 30 Nonwoven fabric sheet 80 Conductive layer

Claims (6)

  1. A band-shaped electrical stimulation wearing device for applying electrical stimulation to a human body using an electrical signal output from an electrical signal output device,
    A metal plate extending in a strip shape;
    A non-conductive holding layer for holding the metal plate,
    The metal plate includes a long main body portion and a plurality of protruding piece portions formed alternately at both ends in the short length direction of the long main body portion.
  2. The plurality of projecting pieces are a plurality of first projecting pieces formed at one end in the short direction,
    It consists of a plurality of second projecting pieces formed at the other end in the short direction,
    The first projecting piece portion is formed in a size corresponding to an interval between the adjacent second projecting piece portions,
    The said 2nd protrusion piece part is formed in the size corresponding to the space | interval of the adjacent said 1st protrusion piece part, The mounting tool for electrical stimulation of Claim 1 characterized by the above-mentioned.
  3. The electrical stimulation wearing device according to claim 1 or 2, wherein a boundary between the long main body portion and the plurality of protruding piece portions is formed in an R shape.
  4. The mounting device for electrical stimulation according to any one of claims 1 to 3, further comprising a nonwoven fabric facing the holding layer with the metal plate interposed therebetween.
  5. A conductive layer facing the holding layer across the metal plate;
    A nonwoven fabric facing the metal plate across the conductive layer;
    The electrical stimulation wearing device according to claim 1, further comprising:
  6. The said metal plate has a protrusion part extended in the plate | board thickness direction of this metal plate, and the electrode terminal is being fixed with respect to the said protrusion part. The mounting device for electrical stimulation as described.


PCT/JP2013/002190 2013-03-29 2013-03-29 Wearable device for electrical stimulation WO2014155423A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/002190 WO2014155423A1 (en) 2013-03-29 2013-03-29 Wearable device for electrical stimulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2013/002190 WO2014155423A1 (en) 2013-03-29 2013-03-29 Wearable device for electrical stimulation
PCT/JP2013/005364 WO2014155433A1 (en) 2013-03-29 2013-09-11 Wearable device for electrical stimulation

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WO2014155423A1 true WO2014155423A1 (en) 2014-10-02

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PCT/JP2013/002190 WO2014155423A1 (en) 2013-03-29 2013-03-29 Wearable device for electrical stimulation
PCT/JP2013/005364 WO2014155433A1 (en) 2013-03-29 2013-09-11 Wearable device for electrical stimulation

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Application Number Title Priority Date Filing Date
PCT/JP2013/005364 WO2014155433A1 (en) 2013-03-29 2013-09-11 Wearable device for electrical stimulation

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117846A (en) * 1976-05-07 1978-10-03 Consolidated Medical Equipment Skin conducting electrode and electrode assembly
JPS53135192A (en) * 1977-04-27 1978-11-25 Takeya Iriyou Denshi Kenkiyuus Low frequency curing conductor
JPH0531196A (en) * 1991-07-29 1993-02-09 Tokyo Electric Co Ltd Living body stimulator
JPH0584312A (en) * 1991-05-14 1993-04-06 Tokyo Electric Co Ltd Living body stimulating device
JPH09276240A (en) * 1995-12-08 1997-10-28 R Keith Ferrari Radiolucency percutaneously stimulating electrode
JP2821265B2 (en) * 1989-04-13 1998-11-05 アクセルガード,ジェンス Electrode electrical stimulation having an impedance compensation
JP2008529563A (en) * 2005-02-01 2008-08-07 ウーンド ソリューションズ リミテッド Electrode configuration for applying electrical signals to animal skin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002282370A (en) * 2001-03-27 2002-10-02 Besutekku:Kk Potential therapeutic device, potential therapeutic method, conductive fiber structure for potential therapeutic device, ahd electrode usage method for potential therapeutic device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117846A (en) * 1976-05-07 1978-10-03 Consolidated Medical Equipment Skin conducting electrode and electrode assembly
JPS53135192A (en) * 1977-04-27 1978-11-25 Takeya Iriyou Denshi Kenkiyuus Low frequency curing conductor
JP2821265B2 (en) * 1989-04-13 1998-11-05 アクセルガード,ジェンス Electrode electrical stimulation having an impedance compensation
JPH0584312A (en) * 1991-05-14 1993-04-06 Tokyo Electric Co Ltd Living body stimulating device
JPH0531196A (en) * 1991-07-29 1993-02-09 Tokyo Electric Co Ltd Living body stimulator
JPH09276240A (en) * 1995-12-08 1997-10-28 R Keith Ferrari Radiolucency percutaneously stimulating electrode
JP2008529563A (en) * 2005-02-01 2008-08-07 ウーンド ソリューションズ リミテッド Electrode configuration for applying electrical signals to animal skin

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