Patent · US Expired

Method and device for the cleansing and care of the teeth and gums

US6139319A · kind A · utility

38Cited by

5References

33Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Michael Sauer · Corning, US
Norbert Schaefer · Frankfurt am Main, DE
Michael Stolper · Eschborn, DE

Key dates

Filing date	Dec 5, 1997
Grant date	Oct 31, 2000
Priority date	—
Expiry date	Dec 5, 2017

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C17/028
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention is directed to a jet nozzle (1) for a handpiece of an oral irrigator, which has a nozzle head (2) in which a feed line (4) runs. The feed line (4) opens into an outlet orifice (5) from which a liquid can emerge in the form of a single jet. A constriction (6) is provided in the feed line (4). The constriction (6) acts to produce a large number of microfine gas bubbles. The microfine gas bubbles are better suited to penetrate deep into subcrestal pockets in order to kill anaerobic bacteria which have settled there by the supply of oxygen, hence treating and curing inflammations of the gums.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.