Instrument for discharging water in the mouth for dental treatment

Claim 1

An instrument for discharging discharged water from the mouth during a dental treatment, comprising: an ovoid, smooth-surface, uncorrugated, edge-free hollow water collection body (150) having a front surface adapted to face outwardly of the mouth, and a rear surface adapted to face a throat inlet in the mouth, the water collection body being formed of soft resilient self-restoring material and having a long axis, wherein the shape of the water collection body is easily transformed when being pushed into the mouth to reduce a feeling of disorder in the mouth; the water collection body having a plurality of orifices extending in rows along the front and the rear surfaces of the water collection body and parallel to the axis; a mounting tube (190) projecting at an angle to the axis and from the water collection body, on one side of the front surface near one end of the water collection body with respect to the axis, the mounting tube communicating with the interior of the hollow water collection body; an L-shaped water suction body (110) having a handle portion (120) extending parallel to and into the mounting tube, and a water suction portion (130) extending in the water collection body and parallel to the axis of the water collection body, the water suction portion having a plurality of openings therein lying along the axis, a gap being provided between an outer periphery of the water suction portion and an inner periphery of the water collection body so that the shape of the water collection body can be transformed while still allowing the L-shaped water suction body to receive water from the water collection body; and a water discharge tube having one end slidable and rotatable in the handle portion for connecting the water discharge tube to the water collection body and the water suction body.