GB778107A - Improvements in or relating to methods of and apparatus for detecting electric potentials on surfaces - Google Patents
Improvements in or relating to methods of and apparatus for detecting electric potentials on surfacesInfo
- Publication number
- GB778107A GB778107A GB12556/55A GB1255655A GB778107A GB 778107 A GB778107 A GB 778107A GB 12556/55 A GB12556/55 A GB 12556/55A GB 1255655 A GB1255655 A GB 1255655A GB 778107 A GB778107 A GB 778107A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- potentials
- electrodes
- skin
- relating
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—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
- A61B5/30—Input circuits therefor
- A61B5/302—Input circuits therefor for capacitive or ionised electrodes, e.g. metal-oxide-semiconductor field-effect transistors [MOSFET]
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
778,107. Physioligical tests. FARLAND. D. H. April 29, 1955 [May 5, 1954], No. 12556/55. Class 81(2) [Also in Group XXXVI] A device for use in detecting potentials on the skin due to muscular activity comprises at least two electrodes adapted to be placed on the skin surface, one electrode being so arranged as to screen unwanted potentials from the area in which it is desired to detect the desired potentials. This device is used in conjunction with amplifying means and with means adapted to indicate or record the detected potentials. In one form, the device comprises an inner disc electrode 1 surrounded by an annular ring electrode 2 but insulated therefrom at 4, this electrode 2 providing the screening effect when the two electrodes, which are mounted in a body 7 movable by handle 8, are placed in contact with the skin or other surface. A lead 10 from electrode 1 is connected to an amplifier (notshown) in circuit with, e.g. a C.R.O. or a loudspeaker. In a second embodiment, the electrode 2 surrounds two inner electrodes of semi-circular form and slightly separated, a voltage being applied to one of the inner electrodes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US778107XA | 1954-05-05 | 1954-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB778107A true GB778107A (en) | 1957-07-03 |
Family
ID=22140197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12556/55A Expired GB778107A (en) | 1954-05-05 | 1953-04-29 | Improvements in or relating to methods of and apparatus for detecting electric potentials on surfaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB778107A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2374878A1 (en) * | 1976-12-27 | 1978-07-21 | Electronics Med | DEVICE FOR DETECTING THE OFFSET OF THE BASELINE OF AN ELECTROCARDIOGRAM SIGNAL |
| GB2145228A (en) * | 1983-08-15 | 1985-03-20 | Stephen John Walpole | Electromyogram |
-
1953
- 1953-04-29 GB GB12556/55A patent/GB778107A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2374878A1 (en) * | 1976-12-27 | 1978-07-21 | Electronics Med | DEVICE FOR DETECTING THE OFFSET OF THE BASELINE OF AN ELECTROCARDIOGRAM SIGNAL |
| GB2145228A (en) * | 1983-08-15 | 1985-03-20 | Stephen John Walpole | Electromyogram |
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