GB2016706A - Improvements in Electroencephalograph Monitoring by Eliminating Unwanted E.C.G. Signals - Google Patents

Improvements in Electroencephalograph Monitoring by Eliminating Unwanted E.C.G. Signals

Info

Publication number
GB2016706A
GB2016706A GB7908073A GB7908073A GB2016706A GB 2016706 A GB2016706 A GB 2016706A GB 7908073 A GB7908073 A GB 7908073A GB 7908073 A GB7908073 A GB 7908073A GB 2016706 A GB2016706 A GB 2016706A
Authority
GB
United Kingdom
Prior art keywords
signals
electrodes
ecg
eeg
eliminating unwanted
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.)
Granted
Application number
GB7908073A
Other versions
GB2016706B (en
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 GB7908073A priority Critical patent/GB2016706B/en
Publication of GB2016706A publication Critical patent/GB2016706A/en
Application granted granted Critical
Publication of GB2016706B publication Critical patent/GB2016706B/en
Expired 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
    • A61B5/43—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
    • A61B5/251—Means for maintaining electrode contact with the body
    • A61B5/252—Means for maintaining electrode contact with the body by suction
    • 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
    • A61B5/30—Input circuits therefor
    • 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
    • A61B5/30—Input circuits therefor
    • A61B5/307—Input circuits therefor specially adapted for particular uses
    • A61B5/31—Input circuits therefor specially adapted for particular uses for electroencephalography [EEG]
    • 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]
    • A61B5/282—Holders for multiple electrodes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pediatric Medicine (AREA)
  • Pregnancy & Childbirth (AREA)
  • Gynecology & Obstetrics (AREA)
  • Reproductive Health (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

The apparatus is particularly applicable to the fetus where EEG signals contain a component of those signals which give rise to electrocardiographs (ECG). In the apparatus ECG signals picked up by electrodes A1, B1 and C1 in an electrode assembly forming part of the apparatus may be eliminated by using a two gang potential divider which provides two signals having equal ECG components, the two signals being subtracted from one another to provide a signal representing EEG. An automatic circuit for removing E.C.G. signals (Fig. 7a not shown) is also disclosed. The electrodes may be concentric annular electrodes (Figs. 1 & 2 not shown), for example, or relatively small disc electrodes A1, B1 and C1 spaced apart at the vertices of an equilateral triangle (Figs. 3 & 4, 8a & 8b not shown). <IMAGE>
GB7908073A 1978-03-16 1979-03-07 Lectroencephalograph monitoring by eliminating unwanted ecg signal Expired GB2016706B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7908073A GB2016706B (en) 1978-03-16 1979-03-07 Lectroencephalograph monitoring by eliminating unwanted ecg signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1038278 1978-03-16
GB7908073A GB2016706B (en) 1978-03-16 1979-03-07 Lectroencephalograph monitoring by eliminating unwanted ecg signal

Publications (2)

Publication Number Publication Date
GB2016706A true GB2016706A (en) 1979-09-26
GB2016706B GB2016706B (en) 1982-12-01

Family

ID=26247485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908073A Expired GB2016706B (en) 1978-03-16 1979-03-07 Lectroencephalograph monitoring by eliminating unwanted ecg signal

Country Status (1)

Country Link
GB (1) GB2016706B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375219A (en) * 1980-02-05 1983-03-01 Walter Schmid Electrode for detecting bioelectrical signals
US4421121A (en) * 1980-10-03 1983-12-20 Whisler John W Method and apparatus for obtaining a non-cephalic referential electroencephalogram
WO1988002616A1 (en) * 1986-10-08 1988-04-21 St. Mary's Hospital Medical School Intrauterine probe
DE102012102710A1 (en) * 2012-03-29 2013-10-02 Jürgen Gross Device and method for measuring electrical potentials of a living being

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375219A (en) * 1980-02-05 1983-03-01 Walter Schmid Electrode for detecting bioelectrical signals
US4421121A (en) * 1980-10-03 1983-12-20 Whisler John W Method and apparatus for obtaining a non-cephalic referential electroencephalogram
WO1988002616A1 (en) * 1986-10-08 1988-04-21 St. Mary's Hospital Medical School Intrauterine probe
JP2579657B2 (en) 1986-10-08 1997-02-05 ブリティッシュ テクノロジィ グループ リミテッド In utero probe
DE102012102710A1 (en) * 2012-03-29 2013-10-02 Jürgen Gross Device and method for measuring electrical potentials of a living being

Also Published As

Publication number Publication date
GB2016706B (en) 1982-12-01

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)