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US 2012/0233790 A1Published application
Brush body and toothbrush
AssigneePanasonic Corporation
InventorsSatoshi Uchida, Masayoshi Nagayama
Life of this patent
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Abstract
A brush body has bristle bundles embedded in a brush head. A bristle contained in the bristle bundles includes a core which consists of a conductive member, and a sheath which consists of an insulating member and covers the core. The core is exposed at the tip portion of the bristle and functions as an electrode for passing current into the mouth. The embedding of the bristle bundles in an electrically conductive base arranged in the brush head electrically connects the core to the base.
Claims15
A brush body comprising a plurality of bristle bundles on a brush head, wherein:
- the plurality of bristle bundles includes a bristle that includes a core, which is formed by a conductive member, and a sheath, which covers the core and is formed by an insulative member, wherein the core is exposed from the sheath at a tip portion of the bristle to function as an electrode that energizes an oral cavity;
- and
- the bristle bundles are embedded in a base, which is arranged in the brush head and formed by a conductive member, thereby electrically connecting the core to the base.
Dependencies are inferred from the claim text.