Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2021/131853
Kind Code:
A1
Abstract:
The present invention provides a toothbrush that can reduce the burden of touch-up brushing on a parent and allow a child to enjoy brushing without disliking the touch-up brushing. This toothbrush comprises: a brush structure that has a piezoelectric element that vibrates due to an arbitrary sound source data signal; and a body that has the brush structure attached to one end side thereof and supplies current to the piezoelectric element. The piezoelectric element is built into a head part of the brush structure, and a brush part of the brush structure comprises a plurality of bristle bundles that are implanted in a plurality of implantation holes in an implantation surface of the head part. When the head part or the brush part contacts biological tissue inside the oral cavity of a user, the vibration of the piezoelectric element that vibrates due to the sound source data signal is transmitted to bone via the biological tissue and perceived by the user as sound.
Inventors:
NODA REONA (JP)
HACHISUKA RYOSUKE (JP)
HACHISUKA RYOSUKE (JP)
Application Number:
PCT/JP2020/046543
Publication Date:
July 01, 2021
Filing Date:
December 14, 2020
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B3/16; A46B9/04; A46B13/02; A46B15/00; A61C17/22
Domestic Patent References:
| WO2019103504A1 | 2019-05-31 | |||
| WO2014162957A1 | 2014-10-09 | |||
| WO2016175304A1 | 2016-11-03 | |||
| WO2020021995A1 | 2020-01-30 |
Foreign References:
| CN205963331U | 2017-02-22 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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