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GB1316072A - Foetal scalp electrodes - Google Patents

Foetal scalp electrodes

Info

Publication number
GB1316072A
GB1316072A GB283671A GB1316072DA GB1316072A GB 1316072 A GB1316072 A GB 1316072A GB 283671 A GB283671 A GB 283671A GB 1316072D A GB1316072D A GB 1316072DA GB 1316072 A GB1316072 A GB 1316072A
Authority
GB
United Kingdom
Prior art keywords
connector
spring
needle
wire
scalp
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.)
Expired
Application number
GB283671A
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.)
AW Showell Surgicraft Ltd
Original Assignee
AW Showell Surgicraft Ltd
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 AW Showell Surgicraft Ltd filed Critical AW Showell Surgicraft Ltd
Publication of GB1316072A publication Critical patent/GB1316072A/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
    • A61B5/279—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]
    • A61B5/344—Foetal cardiography

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Biophysics (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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1316072 Electrodes A W SHOWELL (SURGICRAFT) Ltd and J COPELAND 20 April 1972 [21 Jan 1971] 2836/71 Heading A5R A foetal scalp electrode comprises an electrical connector 2, Fig. 1, a head member 3 of electrically insulating material, an electrically conductive helical spring 4 with a terminal at one end in connector 2 and the other end secured to member 3, and an electrically conductive wire (7), Figs. 3 and 6 (not shown) with a terminal at one end in connector 2, the wire (7) extending through an insulating sheath inside spring 4, and the other end of the wire being provided with an arcuate conductive needle 10, Fig. 4, on an arm 11 in a cavity 12 in head member 3, needle 10 normally being urged, by torsion in spring 4, to the position shown in Fig. 4. In use, member 3 is located against the foetal scalp and connector 2, preferably formed as a hand grip, is rotated relative to member 3 to rotate needle 10 to a retracted position wholly in cavity 12, connector 2 then being released and the needle 10 moving to the Fig. 4 position and thereby looping through part of the scalp to hold it against member 3 and establish electrical contact. Spring 4 may be covered by an insulating sheath 18 which is separated from member 3 and/or from connector 2. The electrode is connected to monitoring equipment by a co-axial cable 16 connected to the spring 4 and wire (7) inside the connector. Alternatively, the connector 2 may be formed as a co-axial plug, Fig. 7 (not shown).
GB283671A 1971-01-21 1971-01-21 Foetal scalp electrodes Expired GB1316072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB283671 1971-01-21

Publications (1)

Publication Number Publication Date
GB1316072A true GB1316072A (en) 1973-05-09

Family

ID=9746864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB283671A Expired GB1316072A (en) 1971-01-21 1971-01-21 Foetal scalp electrodes

Country Status (1)

Country Link
GB (1) GB1316072A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149528A (en) * 1977-10-03 1979-04-17 Hewlett-Packard Company Electrode assembly for sensing heart activity
US4151835A (en) * 1978-03-08 1979-05-01 John Copeland Foetal scalp electrodes
FR2420331A1 (en) * 1978-03-23 1979-10-19 Claude Bernard COMBINED MEASURING HEAD, INTENDED TO BE PLACED ON OR IN BODY PARTS, ALLOWING THE SIMULTANEOUS OBTAINING OF MEASUREMENT SIGNALS RELATING TO AN ELECTRICAL ACTIVITY ON THE ONE HAND AND AN IONIC ACTIVITY ON THE OTHER HAND
US4180080A (en) * 1977-10-03 1979-12-25 Hewlett-Packard Company Electrode assembly for sensing heart activity
EP0007702A1 (en) * 1978-06-21 1980-02-06 Theodore Chester Neward Apparatus for use in physiological monitoring
US4254764A (en) * 1979-03-01 1981-03-10 Neward Theodore C Clip electrode
US4299239A (en) * 1979-02-05 1981-11-10 Intermedics, Inc. Epicardial heart lead assembly
US4357946A (en) * 1980-03-24 1982-11-09 Medtronic, Inc. Epicardial pacing lead with stylet controlled helical fixation screw
US5330525A (en) * 1993-04-29 1994-07-19 Medtronic, Inc. Epicardial lead having dual rotatable anchors
US5492119A (en) * 1993-12-22 1996-02-20 Heart Rhythm Technologies, Inc. Catheter tip stabilizing apparatus
GB2410442A (en) * 2004-01-28 2005-08-03 Surgicraft Ltd Foetal scalp electrode with orientation marking

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149528A (en) * 1977-10-03 1979-04-17 Hewlett-Packard Company Electrode assembly for sensing heart activity
US4180080A (en) * 1977-10-03 1979-12-25 Hewlett-Packard Company Electrode assembly for sensing heart activity
US4151835A (en) * 1978-03-08 1979-05-01 John Copeland Foetal scalp electrodes
FR2420331A1 (en) * 1978-03-23 1979-10-19 Claude Bernard COMBINED MEASURING HEAD, INTENDED TO BE PLACED ON OR IN BODY PARTS, ALLOWING THE SIMULTANEOUS OBTAINING OF MEASUREMENT SIGNALS RELATING TO AN ELECTRICAL ACTIVITY ON THE ONE HAND AND AN IONIC ACTIVITY ON THE OTHER HAND
EP0007702A1 (en) * 1978-06-21 1980-02-06 Theodore Chester Neward Apparatus for use in physiological monitoring
US4299239A (en) * 1979-02-05 1981-11-10 Intermedics, Inc. Epicardial heart lead assembly
US4254764A (en) * 1979-03-01 1981-03-10 Neward Theodore C Clip electrode
US4357946A (en) * 1980-03-24 1982-11-09 Medtronic, Inc. Epicardial pacing lead with stylet controlled helical fixation screw
US5330525A (en) * 1993-04-29 1994-07-19 Medtronic, Inc. Epicardial lead having dual rotatable anchors
US5492119A (en) * 1993-12-22 1996-02-20 Heart Rhythm Technologies, Inc. Catheter tip stabilizing apparatus
GB2410442A (en) * 2004-01-28 2005-08-03 Surgicraft Ltd Foetal scalp electrode with orientation marking
GB2410442B (en) * 2004-01-28 2005-12-07 Surgicraft Ltd Fetal scalp electrodes

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years