GB1398166A - Signal conductor for an electromedical measuring apparatus - Google Patents

Signal conductor for an electromedical measuring apparatus

Info

Publication number
GB1398166A
GB1398166A GB3957872A GB3957872A GB1398166A GB 1398166 A GB1398166 A GB 1398166A GB 3957872 A GB3957872 A GB 3957872A GB 3957872 A GB3957872 A GB 3957872A GB 1398166 A GB1398166 A GB 1398166A
Authority
GB
United Kingdom
Prior art keywords
conductor
coupling member
signal conductor
decoupling
aug
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
GB3957872A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1398166A publication Critical patent/GB1398166A/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
    • A61B5/24—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
    • A61B5/301—Input circuits therefor providing electrical separation, e.g. by using isolating transformers or optocouplers

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

1398166 Electro medical apparatus SIEMENS AG 24 Aug 1972 [25 Aug 1971] 39578/72 Heading G1N A signal conductor 5 for connecting an electrode 4 to a processing unit 6 has incorporated therein an isolating coupling member 10 having a discharge current value in the range 2-5 ÁA, the member being located no greater than 1.5 metres from the electrode connection point. As shown in Fig.2, the coupling member includes an amplifier 11, a modulator 12, a first coupling transformer 13 for decoupling the lengths of conductor 5 and a second coupling transformer 14 for decoupling the amplifier and modulator energy supply conductors 15, 16. Capacitors may alternatively be used. In use, when there is a disturbance at the body of the patient and/or of the mains voltage at the unit, the sum of the leakage currents flowing from the conductor to earth on the one hand, and across the coupling member on the other does not exceed a maximum permissible leakage current value of 10ÁA.
GB3957872A 1971-08-25 1972-08-24 Signal conductor for an electromedical measuring apparatus Expired GB1398166A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712142626 DE2142626B2 (en) 1971-08-25 1971-08-25 MEASURING DEVICE FOR PHYSIOLOGICAL ACTION SIGNALS

Publications (1)

Publication Number Publication Date
GB1398166A true GB1398166A (en) 1975-06-18

Family

ID=5817771

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3957872A Expired GB1398166A (en) 1971-08-25 1972-08-24 Signal conductor for an electromedical measuring apparatus

Country Status (5)

Country Link
AT (1) AT327371B (en)
CH (1) CH546569A (en)
DE (1) DE2142626B2 (en)
FR (1) FR2151380A5 (en)
GB (1) GB1398166A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236086A (en) 1977-11-25 1980-11-25 Siemens Aktiengesellschaft Apparatus for the detection and processing of electric signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236086A (en) 1977-11-25 1980-11-25 Siemens Aktiengesellschaft Apparatus for the detection and processing of electric signals
USRE31524E (en) * 1977-11-25 1984-02-21 Siemens Aktiengesellschaft Apparatus for the detection and processing of electric signals

Also Published As

Publication number Publication date
DE2142626B2 (en) 1977-09-29
CH546569A (en) 1974-03-15
FR2151380A5 (en) 1973-04-13
ATA597472A (en) 1975-04-15
AT327371B (en) 1976-01-26
DE2142626A1 (en) 1973-03-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee