Self-sealing respiratory filter and condensate management apparatus
US12285565B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2021 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Nov 24, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7545
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A respiratory filter and condensate management apparatus is provided for use in a breathing circuit during patient respiration. The apparatus includes a filter housing having an air inlet port and an air outlet port. A filter member is provided within the filter housing and located in an expiratory air flow path. A collection jar is removably attached to the filter housing and has a liquid reservoir to collect liquid formed by condensation in the flow of expiratory air within the filter housing when the collection jar is attached to the filter housing. A valve assembly moves to an open position when the filter housing is attached to the collection jar to allow drainage of the liquid from the filter housing. The valve assembly moves to a closed position when the filter housing is detached from the collection jar to prevent drainage of the liquid from the filter housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.