Patent ID: 6659768
Filing Date: 2003-12-09
Classification: A46B,A61C

Abstract:
An oral cavity cleaning device comprisinga cleaning head; a waste liquid tank; a liquid feeding tank; a pump driven with the cleaning head when the cleaning head is introduced in the oral cavity to suck residual matter in the oral cavity and to drain the residual matter into the waste liquid tank in order to clean the oral cavity; and squeezing means provided in a waste flow passage of from an end of the cleaning head to a suction port of the waste liquid tank to squeeze said waste flow passage to thereby increase a negative pressure downstream of the squeezing position and in order to suck the residual matter at a breath with the increased negative pressure by releasing the squeeze, wherein the pump enables air to be taken through the suction port to suck the residual matter in the oral cavity and to drain the residual matter into the waste liquid tank, and also enables air to be blown out from a blow-out port and fed into the liquid feeding tank to feed a liquid in the liquid feeding tank into the cleaning head.