Biological signal transmission apparatus

• US 7,089,048 B2
• Filed: 04/02/2002
• Issued: 08/08/2006
• Est. Priority Date: 12/25/1997
• Status: Expired due to Term

• Current Assignee: Nihon Kohden Corporation
• Original Assignee: Nihon Kohden Corporation
• Inventors: Hosaka, Hidehiro, Matsumura, Fumiyuki, Sakata, Hiroshi, Sekiguchi, Tetsushi
• Primary Examiner(s): Manuel, George
• Assistant Examiner(s): Kramer, Nicole R.
• Application Number:
  US10/113,558
• Publication Number:
  US 20020107453A1
• Time in Patent Office: 1,589 Days
• Field of Search: 600/509, 600/393, 600/382
• US Class Current: 600/509
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 2560/0475 Special features of memory means, e.g. removable memory cards
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/0008 Temperature signals
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/332 Portable devices specially adapted therefor
• CPC Class Codes: A61B 5/335 using integrated circuit memory devices
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

An electrode 4 for detecting a biological signal and a loop antenna 3 are integrally mounted on a support 2 placed on the surface of a living body and a transmitter 5 is placed on the support 2. A biological signal detected on the electrode 4 is input through a connector 11 to electric circuitry 10 of the transmitter 5 and an electric signal processed by the electric circuitry 10 is output through connectors 12 and 13 to both ends of the loop antenna 3 from which the biological signal is emitted to a receiver. At this time, the opening face of the loop antenna 3 is in a direction almost perpendicular to the surface of a living body for improving sensitivity.

Claims

1. A method of detecting an ECG wave of a subject, comprising:

providing only one electrode group consisting of two electrodes;

positioning the two electrodes within 2.5 cm of an area defined between a xiphoid process and a navel perpendicular to a midsternal line of the subject; and

detecting the ECG wave from signals from the two electrodes according to a standard limb lead method.

2. A method according to claim 1, wherein said electrodes are spaced from each other within a range of 1 to 7.5 cm.

3. A method according to claim 1, wherein said electrodes are spaced from each other in a range of 2 to 7.5 cm.

4. A method of detecting an ECG wave of a subject, comprising:

providing an ECG signal transmission apparatus which comprises;

only one electrode group consisting of two electrodes each of which is adapted to detect an ECG signal of the subject;

a support, supporting the electrodes, and adapted to be placed on the subject; and

a transmitter, having an electric circuit for processing the ECG signal detected by the electrodes;

positioning the two electrodes within 2.5 cm of an area defined between a xiphoid process and a navel perpendicular to a midsternal line of the subject; and

detecting the ECG wave from signals from the two electrodes according to a standard limb lead method.

5. A method according to claim 4, wherein said electrodes are spaced from each other within a range of 1 to 7.5 cm.

6. A method according to claim 4, wherein said electrodes are spaced from each other within a range of 2 to 7.5 cm.