Process and device for the cleaning of teeth
US4795347A · kind A · utility
Inventor
Key dates
| Filing date | Sep 3, 1985 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Sep 3, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tooth cleaning device for optimal tooth cleaning comprises, on a U-shaped carrier (109), tufts of bristles (180), which are placed against the tooth using pressure bubbles (149) under equal cleaning pressure on both sides. With this arrangement the tufts of bristles (180) are fitted to individually self-positioning rocker arms (174, 178'), in order to also engage in the spaces between the teeth, which are difficult to access. With the aid of a further pressure bubble arrangement (147) using phase-shifted pulsating pressurization, with reference to the pressure-generating bubbles (149), a wiping movement of the tufts of bristles (180) with cleaning pressure is generated in the direction from the gum towards the crown of the tooth, in counter-direction without bearing pressure on the tooth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.