Nasal aspirator capable of effectively preventing backflow and control method thereof
US11524105B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2022 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Mar 3, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nasal aspirator capable of effectively preventing backflow and a control method thereof are disclosed. The nasal aspirator includes a casing, a control board, a lower suction nozzle, an upper suction nozzle, a liquid storage cup, and an air pump unit. The control board is disposed in the casing. The lower suction nozzle is disposed on an upper end of the casing. The lower suction nozzle has a chamber and a suction passageway therein. The chamber has an opening facing upward. An upper end of the suction passageway communicates with the chamber. A detection system for detecting a liquid is provided in the chamber. The detection system is connected to the control board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.