Oral irrigator
US10478267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | May 13, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oral irrigator has a separate high pressure water system and low pressure mouth rinse system to deliver two different fluids to a pick or other accessories. The water system and mouth rinse system are combined in a handle. The pick is connected to the handle. The water system has a blocking valve located in the handle and the mouth rinse system has a hand pump located in the handle. The hand pump sits next to a valve button for closing the blocking valve. When the hand pump is pressed, it presses against the valve button of the blocking valve to shut off the source of high pressure water to the pick. The pressure in the pick drops so that the hand pump can then introduce mouth rinse into the pick. When the hand pump is released, the blocking valve opens up and high pressure water returns to the pick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.