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EP0335977A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of measuring biopotential

Assignee: KAWABE Jiro
•
Filing: 1988-09-09
•
Granted: —
•
Expires: 2008-09-09
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Abstract

Abstract A method of measuring biopotentials wherein an electrode is brought into contact with or is brought close to a living body in order to detect an electrical signal generated in the living body based on a potential induced on the electrode. To in­spect the condition where the electrode is contacted, a reference signal is given to the living body. The electrode detects the reference signal of a human body. The reference signal measured from the human body by the electrode represents the condition where the electrode is contacted. The electrode detects the reference signal and an electric signal generated in the living body. The signal level of the living body decreases with the decrease in the reference signal level induced on the electrode. Therefore, the signal level of the living body can be corrected with the reference signal level induced on the elec­trode.

Inventors

  • 👤 Norio Room 605 No. 5 Akamatsu
  • 👤 Yasuhiro Toyosu

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 23:22
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/282; A61B5/276

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 68 words
A method for potential measurement on a living body, wherein an electrode is put in contact with, or very close to the body, and electrical signals originating in the body are detected by the electrical potential induced in said electrode, charac­terized in that body signal detection conditions at said electrode are examined by applying a calibration signal to the body, and detecting said calibration signal at said electrode.
Claim 2
Independent Claim 68 words
A method for potential measurement on a living body, wherein an electrode is put in contact with, or very close to the body, and electrical signals originating in the body are detected by the electrical potential induced in said electrode, charac­terized in that body signal detection conditions at said electrode are examined by applying a calibration signal to the body, and detecting said calibration signal at said electrode.
Claim 3
Independent Claim 67 words
A method for potential measurement on a living body, wherein an electrode is put in contact with, or very close to the body, and electrical signals originating in the body are detected by the electrical potential induced in said electrode, charac­terized in that measurement values of the body potential are cor­rected by applying a calibration signal to the body, and detect­ing said calibration signal at said electrode.
Claim 4
Independent Claim 67 words
A method for potential measurement on a living body, wherein an electrode is put in contact with, or very close to the body, and electrical signals originating in the body are detected by the electrical potential induced in said electrode, charac­terized in that measurement values of the body potential are cor­rected by applying a calibration signal to the body, and detect­ing said calibration signal at said electrode.
Claim 5
Dependent Claim 26 words
A method for potential measurement on a living body as defined in claim 1 and claim 2, wherein alternating current is used as the calibration signal.
Claim 6
Dependent Claim 33 words
A method for potential measurement on a living body as defined in claim 3, wherein alternating current with a frequency equal to that of the supply power is used as the calibration signal.
Claim 7
Dependent Claim 30 words
A method for potential measurement on a living body as defined in claim 1 and claim 2, wherein the calibration signal is applied to the body with respect to ground.
Claim 8
Dependent Claim 31 words
A method for potential measurement on a living body as defined in claim 1 and claim 2, wherein the calibration signal is applied at at least two points on the body.
Claim 9
Dependent Claim 32 words
A method for potential measurement on a living body as defined in claim 1 and claim 2, wherein the calibration signal applied to the body is detected at forty or more electrodes.

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