EP2983779A1 - Système d'électrodes de mesure - Google Patents

Système d'électrodes de mesure

Info

Publication number
EP2983779A1
EP2983779A1 EP14715238.3A EP14715238A EP2983779A1 EP 2983779 A1 EP2983779 A1 EP 2983779A1 EP 14715238 A EP14715238 A EP 14715238A EP 2983779 A1 EP2983779 A1 EP 2983779A1
Authority
EP
European Patent Office
Prior art keywords
absorbent insert
fastening part
arrangement according
insert
support side
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP14715238.3A
Other languages
German (de)
English (en)
Inventor
Udo Warschewske
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EBS Technologies GmbH
Original Assignee
EBS Technologies GmbH
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 EBS Technologies GmbH filed Critical EBS Technologies GmbH
Publication of EP2983779A1 publication Critical patent/EP2983779A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6831—Straps, bands or harnesses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/0484—Garment electrodes worn by the patient

Definitions

  • the invention relates to a measuring electrode assembly for releasable attachment to a flexible carrier material in the form of a band, a hood or the like means having a support side and a connection side, which is provided with an electrical contacting element, wherein, protruding from the support side, an absorbent insert, in particular felt insert is formed, as well as a sow the use-capable insert fixing part according to claim 1.
  • Electrodes which usually have a filled with an electrically conductive liquid Elektrodenschwimmchen, wherein the Elektrodensch tediousmmchen rests on the skin and ensures a smooth current transfer from the electrode to the skin, Such electrodes are either over Suction tips attached to the test person or held by binders, even with the use of Velcro fasteners.
  • Electrode tufts or felt-like electrode inserts can be disinfected or designed as disposable items.
  • electrode according to DE i 965 195 it is assumed that a flexible film on
  • At least one side has an electrically conductive surface, which is connected to a device for Anschl uss of the electrode cable.
  • the known device by an applied to the electrically conductive surface of the film pad of electrically poorly conductive or insulating material as a carrier for an electrically conductive Haftm ittel of preferably pasty consistency gekennzeich net.
  • the purpose of the overlay is to create a defined transition resistance between the foil and the skin, and thus to achieve a uniform flow of current between the foil and the skin over the entire electrode surface.
  • the overlay can be made from a construction of wool, canvas or plastic fabric consist of a fiber paper, wherein the support is so firmly bonded to the conductive film that the material connection only in the form of a
  • the proposed known electrode must have a minimum surface area and be uniform over that entire surface, i. with defined contact pressure. The larger area, however, the contact surface is performed, the more problematic is the setting of reproducible mechanical forces and resulting electrical conditions.
  • the sensor system should be as inconspicuous as possible attachable to patients and / or be integrated into textile or flexible materials. With the teaching there is to be dispensed with additional permanent contact pressure.
  • at least one sensor, an electronic element, an actuator and / or a further element are present on the sensor element.
  • the surface is equipped with elastically deformable, knob-shaped elevations, which go back to their original position or initial shape after releasing the self-adhesive compound from the respective adhesive body.
  • the surface of the knob-shaped elevations is spherically curved, at least in the area which is brought into touching contact with the respective adhesive body.
  • This curvature can preferably be spherical, but also formed following an ellipse or other convex or concave shapes.
  • the knob-shaped elevations are provided with special coupling and functional properties.
  • the knob-shaped elevations may be formed directly on a carrier layer or preferably attached to it in a non-detachable manner. Due to the spherically curved knob-shaped elevations, suction processes occur on contact with the surface of adhesive bodies, by means of which a negative pressure is formed during the deformation of the knob-shaped elevations between the adhesive body and the surface of knob-shaped elevations.
  • the previously known sensor element must have a large-area design of the mentioned elevations. Farther There are problems regarding the reproducibility of the mechanical force effects between the part of the elevations acting as electrodes and the surface of the skin of a subject. This is because the deformations required to form the suction forces naturally also change. Contact surface with turn changed contact resistance.
  • the object of the invention is achieved by a measuring electrode arrangement according to the feature combination according to claim 1, wherein the dependent claims comprise at least expedient refinements and developments.
  • a measuring electrode assembly for releasable attachment to a flexible substrate in the form of a band, a hood or the like means, wherein the electrode assembly has a support side and an electrical connection side.
  • the electrical connection side is provided with an electrical contact element.
  • an absorbent insert in particular felt insert is formed.
  • an absorbent insert fixing the fastening part is present.
  • the absorbent insert may e.g. consist of a cylindrical or pin-shaped felt material to realize a point contact electrode.
  • the coming into contact with the skin surface of the subject in contact or the relevant end of the felt insert may be spherical or hemispherical shaped or else be formed cone or truncated cone.
  • the fastening part either itself consists of a conductive material or absorbs such a material.
  • Possible embodiments of the conductive material include carbon-containing plastics, silver-containing textile materials, noble metals or bodies of sintered silver chloride,
  • the metal of the electrode forms, with the contact gel and the skin, a galvanic cell whose voltage can be several hundred millivolts and differs between the individual electrodes.
  • the discharge cycle of these galvanic filters can be 10 to 20 minutes and is eliminated via filters which remove low frequencies ( ⁇ 0, 2 Hz) from the measuring signal. Furthermore, the unloading process is not uniform but occurs in bursts, which also makes filtering difficult.
  • the exemplary use of silver chloride minimizes and reduces the voltage of the galvanic cells
  • the absorbent insert is then interchangeably introduced into the fastening part, in particular screwed, pressed, snapped, pressed and / or clamped.
  • a mechanical stabilizing device, the absorbent insert or the fastening part is provided on the support side
  • This mechanical stabilizing device has e.g. the shape of a cuff and / or sphenoidal tibs, the cuff, and the spider-leg-like spines may e.g. consist of an elastic or elastomeric material.
  • the stabilization prevents a sliding of the absorbent material over the contacted skin and / or a change in the size of the electrode-skin contact area and thus the impedance ⁇ thus changing the amplitude of the measurement signal) during the measurement. Further, a balance of variations in the pressure of the pressure (FIG. Changing the impedance) and prevents the umma ntelung a nas les drying of the so stiifähTalken egg sentence.
  • the mechanical stabilization device when the corresponding electrode is in contact with the surface of the skin of a subject, it provides for a defined position of the electrodes, preferably in a miniaturized manner. At the same time, there is a tightening of the surface of the skin and an improved contrac- tion.
  • the electrical contacting element is in electrical connection to the conductive electrode body, wherein in turn this material is electrically connected to the absorbent insert.
  • the absorbent insert is drunk to form the relevant electrical functions with a conductive liquid and / or provided with a corresponding conductive gel.
  • the formation of the electrode housing ensures that the absorbent insert of two electrodes are not electrically short-circuited via the possibly also soaked by the liquid, trig material (eg tape, cap) ,
  • trig material eg tape, cap
  • a quick-drying textile can be used for the trig material.
  • absorbent insert is also understood to mean an insert which is itself conductive, for example in that it consists of conductive microparticles or contains such particles
  • absorbent insert here combines the desired properties of compliance and conductivity and the interchangeability, the latter for reasons of hygiene.
  • Einklemm- or other fastening process with regard to absorbent insert in the fastening part of the absorbent insert can be removed after use and replaced by a new, hygienic use.
  • the attachment center is! as a hollow body
  • the passage opening can have a thread for screwing in a cylindrical or pin-shaped part of the absorbent insert.
  • the absorbent insert extends to the connection side and penetrates the fastening part. Furthermore, the absorbent insert is loaded with a force. which forms a vector in the direction of the support side, which minimizes the contact resistance to the skin surface of the subject.
  • the hollow body as a fastening part consists of an electrically insulating material
  • the fastening part is designed in several parts, in order to fix this on the band or the hood over an existing there opening. Preference is given here to a push button-like fixing of the fastening part on the belt or hood used.
  • the cuff and / or the spider leg-like extensions as a stabilizing part surround the free end of the absorbent insert radially spaced.
  • the spider-leg-like extensions provided in one embodiment have a radial orientation starting from the absorbent insert and have a bend or a spherical course
  • the bend or the spherical profile is realized so that when attaching the tape or the hood on the subject, the tongues yield and laterally move away from the center of the absorbent insert. As a result, a tightening of the skin surface takes place and it is the electrical
  • the mechanical stabilization device has no electrical function and for this reason is made of a non-conductive material or insulated from the absorbent insert or other conductive elements.
  • the cuff and / or the spider leg-like extensions of the stabilization device are connected to the fastening part. This compound can come about at the same time as the snap-like fixing of the fastening part on the belt or the hood or run.
  • a free end of the absorbent insert projecting from the fastening part on the connection side can be covered with an elastic cap or similar means.
  • the cap between the fastening part and the fixed corresponding end of the absorbent insert creating a
  • the cap may have in its interior a defined amount of conductive liquid, which is released in a slipping over of the cap and fixing the fastening ungsteil, in order then to come into contact with the sucker-use and drink.
  • the fastening part is an insulating material and has a pot shape.
  • the absorbent insert is screwed interchangeable in this embodiment in the interior of the fastening part, pressed, snapped, pressed and / or clamped.
  • the support side is a mechanical
  • Stabilization device present, which in particular surrounds the fastening part and is fixed to this form and / or kraftschl üssig.
  • the mechanical stabilization device is based on the outer edge of the fastening part, but closes at least almost flush with the absorbent insert or the tip of the absorbent insert.
  • the cuff in question is connected to the fastening part form-fitting and / or non-positively interchangeable, i. can be done easily
  • the cuff is realized as a flexible ring with concentric forward and backward jumps, whereby the concentric projections and recesses of the
  • the contacting element is able to be connected directly to the usable insert and is connected, for example. For example, if you place a side opening in the mounting part, you will be able to get into the inside of it and get into contact with the absorbent insert.
  • the fastening part On the bottom side, the fastening part has an opening for insertion of a conductive liquid, which reaches the absorbent insert via this opening.
  • the absorbent insert is the cup shape of the fastening part designed to be complementary and can thus be introduced into the open side of the pot.
  • the insert may have a protruding truncated cone or conical tip, but may also be configured in a corresponding spherical or hemispherical shape, in order to make possible point contact with the skin surface of the subject as far as possible.
  • FIG. 1 is a longitudinal sectional view through the measuring device according to the invention.
  • FIG. 2 shows an illustration in the form of a longitudinal section of the measuring electrode arrangement according to the second embodiment
  • Fig. 3 is a perspective view of a third embodiment in
  • the measuring electrode arrangement initially proceeds from a fastening part 1.
  • This can be formed as a two-part hollow body and have sintered silver chloride 2 in its interior.
  • the fastening part 1 is snap-like (reference numeral 3) fixed to a fabric tape 4 in a recess there.
  • Egg n contacting element e.g. in the form of an electrode wire 5, extends into the interior of the attachment part 1 and the sintered silver chloride material provided there.
  • the fastening part 1 is penetrated by an absorbent insert 6.
  • the absorbent insert 6 is also in communication with the sintered silver chloride material 2. On the support side, the absorbent insert emerges or protrudes and has a spherical shape 7 at its end facing the skin of a subject.
  • the skin surface is dotted with the reference symbol 8, wherein in the illustration according to FIG. 1, no complete contact of the tissue band 4 and thus the measurement electrode arrangement has yet been completed.
  • a mechanical stabilizing device 9 surrounds the absorbent insert 6 at its spherically formed part 7.
  • the mechanical stabilization device 9 has, for example, a plurality of spider leg-like extensions 10 or is designed as a collar (not shown).
  • the fastening means 1 is designed as a hollow body, wherein the absorbent insert 6 into a corresponding passage opening according to FIG. 1 screwed or as shown in FIG. 2 is engaged or pinched.
  • the ergewi hands is shown in FIG. 1 with the reference numeral 11 indicated by dashed lines.
  • FIG. 2 form a force vector in the direction of the support side, i ndem z.
  • an elastic band or elastic cap 12 presses the absorbent insert 6 in the direction of the arrow shown.
  • the spider-leg-like projections 10 surround the free end of the absorbent insert 6, d. H. the directed towards the skin surface 8 of the subject end is radially spaced.
  • the individual extensions 10 have a bend or a spherical course, as shown in FIGS. 1 and 2 symbolically recognizable.
  • the saugfihlge insert 6 can be easily removed from the mounting part and replaced with a new insert to meet all hygienic requirements.
  • FIG. 3 which is a third
  • the embodiment in explosive view shows » the measuring electrode arrangement consists of a fastening part 1. This may be a plastic injection-molded part.
  • the fastening part 1 of this embodiment is realized cup-shaped and has an inner cavity into which the absorbent insert 6 can be pressed or snapped or clamped.
  • the fastening part according to the embodiment of FIG. 3 consists of two elements, namely the part 1 and the part 100.
  • the outer dimensions of the part 1 in the region of the cylindrical portion are placed on the inner diameter of the lower part 100. Consequently, the part 1 (upper part) with plugged insert 6 snap-like manner in the part 100 (lower part) are inserted and connected. It is held between the encircling collar 110 of the upper part 1 and the encircling collar 120 of the lower part 100 egg n textile material 200 clamped.
  • the textile material 200 may be the portion of a band of a head cover or the like means for fixing the electrode assembly to a head
  • Body part of a subject act.
  • a lateral extension 130 of the lower part 100 has a passage opening for connecting an electrical contacting element 5.
  • the outer dimensions of the part 130 in accordance with a recess 310 is introduced in the sleeve 300, so that the annular portion 320 of the sleeve 300 can be slipped over the lower part 100.
  • a spreading projection 140 on the lower part 100 securely fixes the sleeve 300, wherein a corresponding annular groove (not shown in FIG. 3) can still be present in the sleeve 300.
  • Cuff 300 can underside concentric projections and recesses for fixing the position of the overall arrangement with respect to the skin surface of a
  • the cuff 300 may be made of an elastomeric, especially rubbery material.
  • the absorbent insert ⁇ can be drunk with conductive liquid.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un système d'électrodes de mesure à fixer de manière amovible sur un matériau de support souple sous forme de bande, de charlotte ou de moyens similaires avec une face d'appui et une face de raccordement qui est munie d'un contacteur électrique. Un insert absorbant, en particulier un insert en feutre, est formé de manière à dépasser de la face d'appui, ainsi qu'une pièce de fixation immobilisant l'insert absorbant. Selon l'invention, la pièce de fixation est constituée d'un matériau fritté à base de chlorure d'argent ou bien elle contient ce type de matériau. L'insert absorbant dans la pièce de fixation peut être indifféremment vissé, enfoncé, enclenché, enfoncé et/ou collé. L'invention prévoit en outre côté appui un dispositif de stabilisation mécanique entourant l'insert absorbant, ledit dispositif présentant la forme d'un manchon et/ou de logements saillants en patte d'araignée.
EP14715238.3A 2013-04-10 2014-03-27 Système d'électrodes de mesure Withdrawn EP2983779A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013006277 2013-04-10
DE102013017950.5A DE102013017950A1 (de) 2013-04-10 2013-10-29 Mess-Elektrodenanordnung
PCT/EP2014/056158 WO2014166749A1 (fr) 2013-04-10 2014-03-27 Système d'électrodes de mesure

Publications (1)

Publication Number Publication Date
EP2983779A1 true EP2983779A1 (fr) 2016-02-17

Family

ID=51618174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14715238.3A Withdrawn EP2983779A1 (fr) 2013-04-10 2014-03-27 Système d'électrodes de mesure

Country Status (6)

Country Link
US (1) US20160045126A1 (fr)
EP (1) EP2983779A1 (fr)
JP (1) JP2016515905A (fr)
CA (1) CA2909212A1 (fr)
DE (1) DE102013017950A1 (fr)
WO (1) WO2014166749A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6717087B2 (ja) * 2015-09-04 2020-07-01 オムロンヘルスケア株式会社 低周波治療器、低周波治療器用の本体部、低周波治療器用のパッド、低周波治療器用のパッドとホルダの組み合わせ
PL423723A1 (pl) * 2017-12-04 2019-06-17 Comarch Healthcare Spółka Akcyjna Elektroda EKG

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965195C3 (de) 1969-12-27 1973-12-06 Peter 7913 Senden Zimmer Elektrode für elektromedizimsche Gerate
FI20055366A0 (fi) * 2005-06-30 2005-06-30 Gen Electric Elektrodi biopotentiaalisignaalin saamiseksi
DE102007024238A1 (de) 2007-05-18 2008-11-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selbsthaftendes Sensorelement
ATE502570T1 (de) * 2007-05-22 2011-04-15 Persyst Dev Corp Verfahren und vorrichtung für eeg-elektrode mit schnellem andruck
BRPI0918700B8 (pt) * 2008-12-30 2021-06-22 Univ City New York Res Found conjuntos de eletrodo e aparelhos para a estimulação neurocraniana

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014166749A1 *

Also Published As

Publication number Publication date
DE102013017950A1 (de) 2014-10-16
CA2909212A1 (fr) 2014-10-16
WO2014166749A1 (fr) 2014-10-16
JP2016515905A (ja) 2016-06-02
US20160045126A1 (en) 2016-02-18

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