Anti-reflux nasal aspirator
US11260163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 1, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are various embodiments for an anti-reflux nasal aspirator that includes a nozzle comprising a nozzle outlet, a bulb configured to provide suction at the nozzle outlet in response to a squeezing force applied to the bulb, an anti-reflux coupler positioned between the bulb and the nozzle through which air passes from the bulb to the nozzle, and a one-way air valve positioned in an aperture located at a base of the bulb. The anti-reflux coupler may include a check valve configured to prevent reflux of debris into the bulb. The check valve may include one of an umbrella valve; a duckbill valve; a slit-cutting valve; and a flapper valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.