Biological signal transmission apparatus

• US 6,389,309 B1
• Filed: 09/08/2000
• Issued: 05/14/2002
• Est. Priority Date: 12/25/1997
• Status: Expired due to Term

• Current Assignee: Nihon Kohden Corporation
• Original Assignee: Nihon Kohden Corporation
• Inventors: Matsumura, Fumiyuki, Hosaka, Hidehiro, Sakata, Hiroshi, Sekiguchi, Tetsushi
• Primary Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US09/657,630
• Time in Patent Office: 613 Days
• Field of Search: 600/508, 600/509, 600/382, 600/393, 128/903
• 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 a ECG wave of a subject, comprising:

(a) positioning two electrodes within 2.5 cm of an area defined by a first or second intercostal space sternal border parallel to a clavicle;

(b) detecting a ECG wave from signals from said 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 a ECG wave of a subject, comprising:

(a) positioning two electrodes within 2.5 cm of an area defined by a first or second intercostal space sternal border parallel to a clavicle through a midclavicular on the subject'"'"'s left chest; and

(b) detecting a ECG wave from signals from said 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 in a range of 2 to 7.5 cm.

7. A method of detecting a ECG wave of a subject, using a ECG signal transmission apparatus which comprises:

two electrodes for detecting a ECG signal;

a support for supporting said electrodes, said support operative to be placed on a living body;

a transmitter having an electric circuit for processing the ECG signal detected on said electrodes;

said method comprising;

(a) positioning said two electrodes within a first or second intercostal space sternal border parallel to a clavicle;

(b) detecting a ECG wave from signals from said two electrodes according to a standard limb lead method.

8. A method of detecting a ECG wave of a subject, using a ECG signal transmission apparatus which comprises:

two electrodes for detecting a ECG signal;

a support for supporting said electrodes, said support operative to be placed on a living body;

a transmitter having an electric circuit for processing the ECG signal detected on said electrodes;

said method comprising;

(a) positioning said two electrodes within a first or second intercostal space sternal border parallel to a clavicle through a midclavicular on the subject'"'"'s left chest;

(b) detecting a ECG wave from signals from said two electrodes according to a standard limb lead method.

9. A method according to claim 8, wherein said electrodes are spaced from each other within a range of 1 to 7.5 cm.

10. A method according to claim 8, wherein said electrodes are spaced from each other in a range of 2 to 7.5 cm.