Oral care appliance using a jet-type fluid flow and mechanical action
US9931186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Mar 29, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/3481
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oral care appliance using a jet-type fluid flow And mechanical action An oral care appliance comprises: a gas-liquid cleaning assembly which includes a fluid flow pump assembly (46); a source of liquid (50); and a source of gas (12). The pump assembly is in operative communication with the sources of fluid and gas to produce a jet pattern of gas-injected fluid slugs, directed to a nozzle assembly (80) from which the resulting slugs are directed to the teeth, wherein the individual fluid slugs in the jet flow have a volume in the range of 0.05-0.5 ml per orifice, a diameter in the range of 0.1-2 mm and a repetition rate within the range of 2 Hz to 20 Hz. The appliance further includes a mechanical teeth cleaning assembly, in combination with the gas-liquid assembly, which includes a drive system (160) and a brush assembly in operative contact with the drive system, the brush assembly having a set of bristles (152) at the distal end thereof, wherein in operation, the nozzle assembly is positioned within the brush assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.