DE3210691A1 - Electrode measuring head for recording of fetal cardiac action potentials - Google Patents

Electrode measuring head for recording of fetal cardiac action potentials

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Publication number
DE3210691A1
DE3210691A1 DE3210691A DE3210691A DE3210691A1 DE 3210691 A1 DE3210691 A1 DE 3210691A1 DE 3210691 A DE3210691 A DE 3210691A DE 3210691 A DE3210691 A DE 3210691A DE 3210691 A1 DE3210691 A1 DE 3210691A1
Authority
DE
Germany
Prior art keywords
measuring head
electrode
head according
electrode measuring
pot
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.)
Ceased
Application number
DE3210691A
Other languages
German (de)
Inventor
Klaus Dr.-Ing. Langner
Erich Prof. Dr. med. 1000 Berlin Saling
Stephan Dr. Med. Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE3210691A priority Critical patent/DE3210691A1/en
Publication of DE3210691A1 publication Critical patent/DE3210691A1/en
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
    • A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
    • A61B5/4343—Pregnancy and labour monitoring, e.g. for labour onset detection
    • A61B5/4362—Assessing foetal parameters
    • 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
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/283—Invasive
    • A61B5/288—Invasive for foetal cardiography, e.g. scalp electrodes
    • 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
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/321—Accessories or supplementary instruments therefor, e.g. cord hangers
    • A61B5/324—Means for providing electrolytes, e.g. syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
    • A61B2562/0217—Electrolyte containing

Abstract

A cup-like measuring head (1) has a bottom (2) and a jacket-like wall (3), as well as a rim (4) by which the measuring head is stuck onto the head of the fetus. The measuring chamber formed in this way is filled with a conducting, electrolyte-containing liquid which serves for transmission of the fetal cardiac action potentials to an annular or sheet-like electrode (7). <IMAGE>

Description

3ft ♦ * ·3ft ♦ * ·

PATENTANWÄLTEPATENT LAWYERS

ά J%öά Y% ö

rnerrner

1OOO BERLIN-DAHLEM 33 ■ PODBfELSKIALLEE1OOO BERLIN-DAHLEM 33 ■ PODBfELSKIALLEE

DR.-ING.
KLAUS LANGNERDR.-ING.
KLAUS LANGNER

PROF. DR. MED. ERICH SALINGPROF. DR. MED. ERICH SALING

DR. MED.
STEPHAN SCHMIDT 8000 MÜNCHEN 22 ■ WI D EN MAYERSTRASS E 49DR. MED.
STEPHAN SCHMIDT 8000 MUNICH 22 ■ WI D EN MAYERSTRASS E 49

BERLIN: DIPL.-INQ. R. MÜLLER-BÖRNERBERLIN: DIPL.-INQ. R. MÜLLER-BORNER

MÜNCHEN: OIPL.-ΙΝβ. HANS-HEINRICH WEY MUNICH: OIPL.-ΙΝβ. HANS-HEINRICH WEY

DIPL.-INQ. EKKEHARD KÖRNERDIPL.-INQ. EKKEHARD KORNER

Berlin, den 19. März 1982Berlin, March 19, 1982

Elektrodenmeßkopf zur Ableitung fetaler HerzaktionspotentialeElectrode measuring head for derivation fetal cardiac action potentials

6 Seiten Beschreibung mit6 pages of description with

8 Patentansprüchen8 claims

1 Seite Zusammenfassung1 page summary

mit Fig. 1 1 Blatt Zeichnungwith Fig. 1 1 sheet drawing

MB/Ma - 27 800MB / Ma - 27,800

BERLIN: TELEFON (03O) 8312Ο88 KABEL: PROPINDUS · TELEX: 1 84OS7 MÜNCHEN: TELEFON <O8O) 22S58S KABELiPROPINDUS-TELEX:BERLIN: TELEPHONE (03O) 8312Ο88 CABLE: PROPINDUS TELEX: 1 84OS7 MUNICH: TELEFON <O8O) 22S58S KABELiPROPINDUS-TELEX:

-X--X-

Die vorliegende Erfindung betrifft einen Elektrodenmeßkopf zur Ableitung fetaler Herzaktionspotentiale.The present invention relates to an electrode measuring head for deriving fetal cardiac action potentials.

Es ist bekannt, den Feten unter der Geburt durch Kardiotokographie und Fetalblutanalyse zu überwachen. Zusätzlich kann man den Zustand des Feten durch kontinuierliche transkutane Messung von Blutgasen des Feten überwachen.It is known to provide birth to the fetus by cardiotocography and monitor fetal blood analysis. Additionally one can see the condition of the fetus by continuous Monitor transcutaneous measurement of fetal blood gases.

Zur elektronischen und biochemischen Überwachung bedient man sich vorzugsweise die Haut des Feten penetrierender Methoden.For electronic and biochemical monitoring, preference is given to using the skin of the fetus that is penetrating Methods.

Aufgabe der vorliegenden Erfindung ist es, einen Elektrode] meßkopf zu schaffen, der die Ableitung insbesondere der fetalen Herzaktionspotentiale ohne Penetration der Haut gestattet und dennoch zuverlässig funktioniert.The object of the present invention is to create an electrode measuring head which can be used to derive, in particular, the fetal cardiac action potentials without penetrating the skin and still functions reliably.

Zur Lösung dieser Aufgabe werden bei einem Meßkopf der eingangs erwähnten Art erfindungsgemäß die im Kennzeichen des Hauptanspruchs angegebenen Mittel vorgeschlagen.In order to achieve this object, in the case of a measuring head of the type mentioned at the outset, according to the invention, those in the characteristic of the main claim specified means proposed.

Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Further developments of the invention are given in the subclaims.

Die auf diese Weise entstandene EKG-Elektrode wird mittels des Fixierrings möglichst lückenlos mit dem fetalen Kopf verklebt. Dabei bildet sich zwischen der Hautoberfläche und dem Topfboden des Meßkopfes eine Meßkammer zur Aufnahm« leitender elektrolythaltiger Flüssigkeit, die ihrerseits zum Überleiten der Herzaktionspotentiale an die Elektrode dient.The EKG electrode created in this way is as seamless as possible with the fetal head by means of the fixing ring glued. A measuring chamber is formed between the surface of the skin and the bottom of the measuring head for receiving Conductive liquid containing electrolytes, which in turn is used to transfer the cardiac action potentials to the electrode serves.

- 4 COPY - 4 COPY

Der Gegenstand der Erfindung ist in der Zeichnung beispielsweise dargestellt. Es zeigen:The object of the invention is shown in the drawing, for example. Show it:

Fig. 1 den neuen Elektrodenmeßkopf mit Durchflußelektrode; Fig. 2 eine Abwandlung von Fig. 1.1 shows the new electrode measuring head with a flow electrode; FIG. 2 shows a modification of FIG. 1.

Der topf- oder napfartige Meßkopf besteht aus einem Topf 1 mit einem Boden 2 und einer Wand 3, die am Rand einen Fixierring 4 hat. Oberhalb des Fixierrings 4 sind je eine Bohrung ; für einen Zufluß 5 und eine Bohrung für einen Abfluß 6 vorgesehen. Mit dem Fixierring 4 ist eine durch den Topfboden geführte, kreisförmig ausgebildete, wirksame Elektrode 7 verbunden, die beispielsweise aus einem Drahtring oder aus einer leitenden Fläche bestehen kann.The pot-like or bowl-like measuring head consists of a pot 1 with a base 2 and a wall 3 which has a fixing ring 4 on the edge. Above the fixing ring 4 are each a hole ; provided for an inflow 5 and a bore for an outflow 6. A circular, effective electrode 7, which is guided through the bottom of the pot and which is effective and which can consist, for example, of a wire ring or of a conductive surface, is connected to the fixing ring 4.

Der vom Elektrodentopf 1 und von der nicht dargestellten Haut des Feten gebildete Hohlraum stellt eine Meßkammer dar, aus der sich fetale Herzaktionspotentiale überleiten lassen, so-.bald die Meßkammer über Zu- und Abführungsschläuche 8 bzw. mit elektrolythaitiger Flüssigkeit, ζ. B. NaCl in Glyzerin, NaCl in H_0 oder auch Elektrolytgel, gefüllt ist, nachdem der Meßkopf durch Verkleben des Fixierringes 4 mit dem fetalen Kopf mittels eines Gewebeklebers befestigt und abge-« dichtet ist. Über die auf diese Weise in die entstandene Meßkammer eingebrachte Elektrode gelingt die Ableitung der Herzaktionspotentiale ohne Penetration der Haut. Die Zu- und Abführungsschläuche dienen bei dieser EKG-Elektrode zum Nachfüllen des Elektrolyten.The cavity formed by the electrode pot 1 and the skin of the fetus, not shown, represents a measuring chamber who can transfer fetal cardiac action potentials, so-soon the measuring chamber via supply and discharge hoses 8 or with an electrolyte-containing liquid, ζ. B. NaCl in glycerine, NaCl in H_0 or electrolyte gel is filled after the measuring head by gluing the fixing ring 4 to the fetal Head attached and removed by means of a tissue adhesive is sealed. The derivation of the succeeds via the electrode introduced into the resulting measuring chamber in this way Cardiac action potentials without skin penetration. The supply and discharge tubes are used for refilling this EKG electrode of the electrolyte.

Bei der Abwandlung nach Fig. 2 haben gleiche Teile gleiche Bezugszeichen. Dabei ist der Zu- und Abfluß der elektrolytischen Flüssigkeit aus der Topfwand 3 in den Topfbodan 2In the modification of FIG. 2, the same parts have the same reference numerals. The inflow and outflow are electrolytic Liquid from the pot wall 3 into the pot base 2

BAD ORIGINALBATH ORIGINAL

321.069 ■-* -321,069 ■ - * -

verlegt. Dieses Beispiel zeigt gleichzeitig, daß es nicht unbedingt erforderlich ist, den Abfluß 6 ebenso wie den Zufluß 5 mit einer Schlauchleitung zu verbinden, sondern daß die Flüssigkeit durch die Abflußöffnung 6 unmittelbar entfernt werden kann, wobei allerdings Vorsorge getroffen werden muß, daß die elektrolytische Flüssigkeit steril ist. Sie könnte möglicherweise desinfizierend wirken und damit aufsteigende Infektionen bekämpfen. Auf diese Weise entsteh· eine Durchflußelektrode.relocated. This example shows at the same time that it is not absolutely necessary, the drain 6 as well as the To connect the inflow 5 with a hose line, but that the liquid through the outflow opening 6 directly can be removed, but care must be taken that the electrolytic liquid is sterile. It could possibly have a disinfectant effect and thus fight rising infections. In this way a flow-through electrode.

Bemerkt sei noch, daß mit dem neuen Meßkopf auch mehrere Sonderelektroden zu einer Kombinationselektrode verbunden · sein können, um etwa außer nur die Herzaktionspotentiale abzuleiten auch beispielsweise den Partialdruck von Blutgasen festzustellen, wobei z. B. transkutane Methoden zur Anwendung kommen könnten.It should also be noted that the new measuring head also combines several special electrodes to form a combination electrode in order to derive not only the cardiac action potentials but also, for example, the partial pressure of blood gases determine, with z. B. transcutaneous methods for Could apply.

BAD ORIGINALBATH ORIGINAL

ME/Ma - 27 800ME / Ma - 27 800

Claims (8)

PatentansprücheClaims Elektrodenmeßkopf zur Ableitung fetaler Herzaktionspotentiale, dadurch gekennzeichnet, daß ein Elektrodentopf (1) je eine Bohrung (5,6) für Zufluß und Abfluß einer elektrolythaltigen Flüssigkeit aufweist und daß eine wirksame Elektrode (7) mit der elektrolytischen Flüssigkeit in Berührung steht.Electrode measuring head for deriving fetal cardiac action potentials, characterized in that an electrode pot (1) has a hole in each case (5,6) for the inflow and outflow of an electrolyte-containing liquid and that an effective electrode (7) is in contact with the electrolytic liquid. 2. Elektrodenmeßkopf nach Anspruch 1, dadurch gekennzeichnet , daß die Bohrungen (5,6) in der Topfwand (3) vorgesehen sind.2. Electrode measuring head according to claim 1, characterized in that the bores (5, 6) are provided in the pot wall (3). 3. Elektrodenmeßkopf nach Anspruch 1, dadurch gekennzeichnet , daß die Bohrungen (5,6) im Topfboden (2) vorgesehen sind.3. Electrode measuring head according to claim 1, characterized in that the bores (5, 6) are provided in the bottom of the pot (2). 4. Elektrodenmeßkopf nach Anspruch 2 oder 3, dadurch gekennzeichnet , daß die Bohrung (5) für den Zufluß an ein Schlauchsystem (8) angeschlossen ist.4. electrode measuring head according to claim 2 or 3, characterized in that the bore (5) for the inflow is connected to a hose system (8). BERLIN: TELEFON (O3O) 8312088 KABEL: PROPINDUS · TELEX: 184OS7BERLIN: TELEPHONE (O3O) 8312088 CABLE: PROPINDUS TELEX: 184OS7 MÜNCHEN: TEL E FO N (0 89) 22 55 8 = KABEL: PROPINDUS · TELEX: 5242*4MUNICH: TEL E FO N (0 89) 22 55 8 = CABLE: PROPINDUS TELEX: 5242 * 4 GöPYGöPY 5. Elektrodenmeßkopf nach Anspruch 4, dadurch gekennzeichnet , daß die Bohrung (6) für den Abfluß an ein Schlauchsystem (9) angeschlossen ist.5. electrode measuring head according to claim 4, characterized in that the bore (6) is connected to a hose system (9) for drainage. 6. Elektrodenmeßkopf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zur Fixierung am fetalen Kopf ein sich von der Topfwand (3) erstreckender Fixierring (4) vorgesehen ist.6. electrode measuring head according to one of claims 1 to 5, characterized in that for Fixation on the fetal head away from the wall of the pot (3) extending fixing ring (4) is provided. 7. Elektrodenmeßkopf nach Anspruch 6, dadurch gekennzeichnet , daß der fixierte Elektrodentopf (1) eine Meßkammer bildet.7. electrode measuring head according to claim 6, characterized in that the fixed electrode pot (1) forms a measuring chamber. 8. Elektrodenmeßkopf nach Anspruch 1, dadurch gekennzeichnet , daß die Elektrode (7) ring- oder flächenförmig ausgebildet ist.8. electrode measuring head according to claim 1, characterized in that the electrode (7) is annular or flat. MB/Ma - 27 800 - 6 -MB / Ma - 27 800 - 6 -
DE3210691A 1982-03-19 1982-03-19 Electrode measuring head for recording of fetal cardiac action potentials Ceased DE3210691A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3210691A DE3210691A1 (en) 1982-03-19 1982-03-19 Electrode measuring head for recording of fetal cardiac action potentials

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Application Number Priority Date Filing Date Title
DE3210691A DE3210691A1 (en) 1982-03-19 1982-03-19 Electrode measuring head for recording of fetal cardiac action potentials

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DE3210691A1 true DE3210691A1 (en) 1983-09-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446115A1 (en) * 1984-12-18 1986-06-19 Drägerwerk AG, 2400 Lübeck Adhesive measuring probe with a measurement sensor
DE3816190C1 (en) * 1988-05-11 1989-08-10 Dieter Von 8000 Muenchen De Zeppelin Scalp electrode
US5345935A (en) * 1990-04-19 1994-09-13 Egnell Ameda Limited Non-invasive medical probe provided with suction cup

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1907889A1 (en) * 1969-02-17 1970-09-03 Spitalul Clinic De Obstetrica Device for scanning the currents of action of the fetal heart by endo-uterine route
DE2737665A1 (en) * 1977-08-20 1979-03-01 Somatron Biofeedback Gmbh SKIN ELECTRODE FOR ELECTROMEDICAL PURPOSES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1907889A1 (en) * 1969-02-17 1970-09-03 Spitalul Clinic De Obstetrica Device for scanning the currents of action of the fetal heart by endo-uterine route
DE2737665A1 (en) * 1977-08-20 1979-03-01 Somatron Biofeedback Gmbh SKIN ELECTRODE FOR ELECTROMEDICAL PURPOSES

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: Medizintechnik, 99, 1979, H.1, S.16-25 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446115A1 (en) * 1984-12-18 1986-06-19 Drägerwerk AG, 2400 Lübeck Adhesive measuring probe with a measurement sensor
DE3816190C1 (en) * 1988-05-11 1989-08-10 Dieter Von 8000 Muenchen De Zeppelin Scalp electrode
US5345935A (en) * 1990-04-19 1994-09-13 Egnell Ameda Limited Non-invasive medical probe provided with suction cup

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