Title:
PIEZOELECTRIC SENSOR AND BIOINFORMATION ACQUISITION GARMENT
Document Type and Number:
WIPO Patent Application WO/2021/065085
Kind Code:
A1
Abstract:
A bioinformation acquisition garment (1) comprises a garment (10) and a piezoelectric sensor (20). The piezoelectric sensor (20) measures bioinformation of a subject (9) wearing the garment (10). The piezoelectric sensor (20) comprises: a sensor element (30) which includes a piezoelectric layer (31) including an elastomer and piezoelectric particles, and electrode layers (32a, 32b) disposed with the piezoelectric layer (31) sandwiched therebetween; and an elastic layer (40) which includes an elastomer and is stacked on the sensor element (30). The piezoelectric sensor (20) stretches with the stretch of the garment (10). The piezoelectric sensor (20) has a sensor sensitivity at 10% elongation, when elongated by 10% along a uniaxial direction, that is at least half the sensor sensitivity before elongation, and has a spring constant that is greater than the spring constant of the garment (10).
Inventors:
TAKAHASHI WATARU (JP)
Application Number:
PCT/JP2020/023171
Publication Date:
April 08, 2021
Filing Date:
June 12, 2020
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
A61B5/11; A41D13/00; A61B5/02; A61B5/113; G01L1/16
Domestic Patent References:
| WO2019181931A1 | 2019-09-26 | |||
| WO2017061209A1 | 2017-04-13 |
Foreign References:
| JP2018056287A | 2018-04-05 | |||
| JP2017028323A | 2017-02-02 | |||
| JP2019037672A | 2019-03-14 |
Attorney, Agent or Firm:
HIGASHIGUCHI Michiaki et al. (JP)
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