Disclosed is possible to reduce as much as possible the cleaning liquid quantity to be used for cleaning the mouth of the caregiver to provide care for oral irrigator which greatly reduces the risk of aspiration of the caregiver . The apparatus includes a toothbrush 10, comprises a liquid supply unit 70 supplies the cleaning liquid to the toothbrush 10, the liquid supply unit 70, a liquid supply container 20 the cleaning liquid is stored, the cleaning liquid of the liquid supply container 20 to the toothbrush 10 a liquid supply pump 30 to be sent, on one end side supply fluid container 20, and has the other end side liquid supply path 40 which is connected within the toothbrush 10, and an air intake unit 42 for taking air into supply fluid channel 40, feed a check valve 32 for regulating the flow of supply direction opposite to the direction of the cleaning liquid in the liquid path 40 is disposed in the intermediate position of the liquid supply passage 40, the cleaning liquid and air are mixed in the supply fluid channel 40, the cleaning liquid, the cleaning liquid It characterized in that it is supplied from the bristle portion 12 of the toothbrush 10 in the mouth in a state of containing a continuous large bubbles and micro-bubbles in. .BACKGROUND【課題】被介護者の口の中を洗浄する際に用いる洗浄液量を可及的に削減することで、被介護者の誤嚥のおそれを大幅に低減させた介護用口腔洗浄器を提供する。【解決手段】歯ブラシ10と、歯ブラシ10に洗浄液を供給する給液部70を具備し、給液部70は、洗浄液が貯留された給液容器20と、給液容器20の洗浄液を歯ブラシ10に送る給液ポンプ30と、一端側が給液容器20に、他端側が歯ブラシ10に連結された給液路40と、を有し、給液路40に空気を取り込む空気取込部42と、給液路40において供給方向と逆方向の洗浄液の流通を規制する逆止弁32が給液路40の中途位置に配設され、給液路40内で洗浄液と空気が混合され、洗浄液は、洗浄液中に連続的な大気泡および微細気泡を含んだ状態で歯ブラシ10の植毛部12から口腔内に供給されることを特徴とする。【選択図】図1
