GB1398166A - Signal conductor for an electromedical measuring apparatus - Google Patents
Signal conductor for an electromedical measuring apparatusInfo
- 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
Links
- 239000004020 conductor Substances 0.000 title abstract 5
- 230000008878 coupling Effects 0.000 abstract 5
- 238000010168 coupling process Methods 0.000 abstract 5
- 238000005859 coupling reaction Methods 0.000 abstract 5
- 239000003990 capacitor Substances 0.000 abstract 1
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.
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)
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 |
-
1971
- 1971-08-25 DE DE19712142626 patent/DE2142626B2/en not_active Withdrawn
-
1972
- 1972-04-26 CH CH623372A patent/CH546569A/en not_active IP Right Cessation
- 1972-07-12 AT AT597472A patent/AT327371B/en not_active IP Right Cessation
- 1972-08-24 GB GB3957872A patent/GB1398166A/en not_active Expired
- 1972-08-24 FR FR7230172A patent/FR2151380A5/fr not_active Expired
Cited By (2)
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 |