Oral cavity cleaning device
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United States of America Patent
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Jul 19, 2005
Grant Date -
Oct 2, 2003
app pub date -
Apr 24, 2003
filing date -
Oct 30, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
An oral cavity device wherein a pump is driven with a cleaning head introduced in the oral cavity to suck residual matter in the oral cavity and to drain it into a waste liquid tank in order to clean the oral cavity, and wherein a water feed port of a water feed tube is provided in a waste flow passage of from an end of the cleaning head to a suction port of the waste liquid tank to increase negative pressure in the waste flow passage by feeding water through the water feed tube and, then, to suck the residual matter, at a breath with the increased negative pressure by no longer feeding the water.
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