Pressure-sensitive conductive yarn and biological information-measuring garment

• US 20100105992A1
• Filed: 10/16/2009
• Published: 04/29/2010
• Est. Priority Date: 10/24/2008
• Status: Abandoned Application

• Current Assignee: Okamoto Corporation, The Ritsumeikan Trust (Ritsumei-Kan University Educational Association)
• Original Assignee: Okamoto Corporation, The Ritsumeikan Trust (Ritsumei-Kan University Educational Association)
• Inventors: Araki, Takahiro, Oda, Syunsuke, Fujita, Emi, Makikawa, Masaaki
• Application Number:
  US12/588,498
• Publication Number:
  US 20100105992A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A41D 13/1281 with incorporated means for medical monitoring
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/6804 Garments; Clothes
• CPC Class Codes: D02G 3/32 Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
• CPC Class Codes: D02G 3/441 Yarns or threads with antistatic, conductive or radiation-shielding properties electroconductive, anti-static or radiation-shielding filaments D01F1/09, D01F1/106; anti-static fabrics D03D15/533; conducting, insulating or anti-static layers for floor coverings D06N7/0042

Abstract

Object

An object of the present invention is to provide a pressure-sensitive conductive yarn capable of detecting different biological information simultaneously when used as an electrode.

Means for Achieving the Object

A pressure-sensitive conductive yarn comprising a core yarn formed of an elastic yarn around which a winding yarn having conductivity is wound, wherein the winding yarn is a mixed yarn of a conductive fiber and a nonconductive fiber to cause variations in its electrical resistance with elongation or contraction.

Claims

1. A pressure-sensitive conductive yarn comprising a core yarn formed of an elastic yarn around which a winding yarn having conductivity is wound, wherein the winding yarn is a mixed yarn of a conductive fiber and a nonconductive fiber to cause variations in its electrical resistance with elongation or contraction.

2. The pressure-sensitive conductive yarn according to claim 1, wherein the winding yarn is doubly wound around the core yarn, the first winding direction being opposite to the second winding direction.

3. A biological information-measuring garment comprising electrodes provided on the garment formed of a nonconductive material in such a manner as to closely contact with the body, wherein the electrodes are formed using the pressure-sensitive conductive yarn according to claim 1.

4. The biological information-measuring garment according to claim 3, wherein a heart rate signal and respiration signal can be simultaneously extracted based on output signals from the electrodes.

5. A biological information-measuring garment comprising electrodes provided on the garment formed of a nonconductive material in such a manner as to closely contact with the body, wherein the electrodes are formed using the pressure-sensitive conductive yarn according to claim 2.