Bubble humidifier with improved diffuser and pressure relief device
US6786475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | May 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0808
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bubble humidifier for adding humidity to supplied oxygen. The bubble humidifier has a humidifier base, for containing a quantity of liquid, and a cover for the humidifier base. The bubble humidifier has an oxygen inlet for supplying oxygen to the bubble humidifier and an moisturized oxygen outlet for connection to a moisturized oxygen supply conduit for supplying humidified oxygen to a patient, and the oxygen inlet being connected to a diffuser for diffusing the supplying oxygen within the bubble humidifier. The bubble humidifier has a pressure relief device for relieving excess pressure generated within the bubble humidifier during operation thereof. The bubble humidifier defining a longitudinal axis and the diffuser is arranged to discharge the oxygen from the diffuser substantially at an angle normal to the longitudinal axis of the bubble humidifier to minimize flow of liquid, contained within the humidifier base, from entering the moisturized oxygen outlet during operation of the bubble humidifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.