| 摘要 |
An oral hygiene apparatus includes means for producing a succession of water pulses at a preselected pressure together with means for delivering those water pulses into a handle shaped to be grasped by the human hand. An elongated nozzle projects outwardly from the handle, manipulation of the handle permitting the water pulses, flowing through the nozzle from the handle, to be directed against the teeth and gums of the user. Included within the handle are means to define a flow path from the delivery means into the nozzle. A valve disposed within the handle is selectively operable to open or close that flow path during the delivery of the water pulses. Also disclosed is the inclusion of an accumulator within the handle for adsorbing the pressure load of incoming water pulses during closure of the valve.
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