FIELD: medicine.
SUBSTANCE: group of inventions relates to an oral irrigation device and its body. Body of the oral irrigation device is provided with an enclosing space which is used to accommodate the cleaning liquid used by the irrigation device. Body is equipped with a first channel, a first hole and a second hole, which respectively communicate with the first channel. First hole is used for communication of the first channel with the outside world, and the second hole is used for communication of the containing space with the first channel. Second hole comprises a first end communicating with the first channel and a second end communicating with the containing space, wherein the cross-sectional area of the first end is greater than that of the second end. Oral irrigation device comprises a body and an irrigation component located in the body.
EFFECT: unobstructed flow of gas into and out of the body during operation of the oral irrigation device in order to avoid creation of negative pressure and impossibility of formation of a jet of cleaning water for cleaning of teeth and oral cavity.
12 cl, 6 dwg
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