Humidification in respiratory systems
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United States of America Patent
Stats
-
Aug 29, 1989
Grant Date -
N/A
app pub date -
Jul 13, 1987
filing date -
Jul 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Respiratory gas is humidified by flowing it along a flowpath at least a portion of whose wall is formed of a barrier material which is pervious to water vapor and impervious to water while the side of said wall opposite the flowpath is subjected to one or both of water and water vapor. Production of such a flowpath can be accomplished by compressing and bonding together selected portions of a resilient, open-celled material which is disposed as a layer between layers of water impermeable material at least one of which layers is permeable by water vapor.
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