Moisture removal and condensation and humidity management apparatus for a breathing circuit
US11471636B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2016 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jul 6, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A moisture removal and condensation and humidity management apparatus for a breathing circuit includes a breathing circuit tubing defining a breathing gas conduit. The breathing gas has a first humidity level and a level of moisture therein. A dry gas conduit is adjacent at least a portion of the breathing gas conduit. The dry gas flow is configured to have a second humidity level lower than the first humidity level. A moisture transmission pathway is provided between the breathing gas conduit and the dry gas conduit, such that humidity in the flow of breathing gas is lowered and moisture is transferred to the dry gas flow. The moisture transmission pathway may be provided by a permeable portion which is permeable to water vapor but impermeable to liquid water, or by one or more perforations which permit drainage of liquid water from the breathing gas conduit to the dry gas conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.