Negative-pressure oral apparatus and method for maintaining negative oral pressure and collecting liquid
US11311692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Oct 8, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0637
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention discloses a negative-pressure oral apparatus capable of relieving discomfort of soft tissues in the oral cavity and improving fixation of the oral apparatus to prevent the oral apparatus from falling off due to mouth opening. The oral apparatus is compact and elastic so that it fits various shapes and sizes of the oral cavity and is easy to be put on and taken off to provide convenience and safety to the user. In another embodiment, a method for maintaining a negative oral pressure and collecting liquid by coupling the oral apparatus to a liquid collecting apparatus capable of effectively providing the oral cavity with a negative pressure to expel liquid in the oral apparatus and deliver the liquid to an absorbing element in the liquid collecting apparatus so as to prevent liquid leakage or contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.