Hand-held oral irrigating device

Details Hand-held oral irrigating device Hand-held oral irrigating device

1989-12-01

1990-12-25

Wilson, John J.

Surgery

Truss

Perineal

433 88, A61H 900

Patent

active

049795031

ABSTRACT:
The hand-held oral irrigating device of the invention is substantially self-contained and powered solely by an input stream of continuous flow treatment liquid, such as water from a conventional supply line. The device includes a internal turbine that is rotated by one portion of the input stream and which generates a pulsatile flow of the treatment liquid from a second portion of the stream by interruptedly passing the second portion through apertures defined in the rotating turbine. The rotating turbine concurrently operates a gear pump for mixing a stored medicament, at a rate controlled by the rotation of the turbine, with the pulsatile flow of treatment liquid at a predetermined and substantially constant volumetric ratio. The resulting combined pulsatile flow of treatment liquid and medicament is discharged through a releasably mounted appliance head or tip for use, by way of example, in cleaning the teeth and stimulating the gums of the user.

REFERENCES:
patent: 3820532 (1974-06-01), Eberhardt et al.
patent: 4108167 (1978-08-01), Hickman et al.
patent: 4564005 (1986-01-01), Marchand et al.

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