A new device for 100 per cent humidification of inspired air
A new humidifier for use during mechanical ventilation in
endotracheally intubated patients is described and tested. The humidifier is
based on a heat-moisture exchanger, which absorbs the expired heat and moisture
and releases it into the inspired air. External heat and water are then added
at the patient side of the heat-moisture exchanger, so that the inspired gas
should reach 100% humidity (44 mg/l) at 37°C. In bench tests using constant
and decelerating inspiratory flow and minute volumes of 3–25 l the device gave
an absolute humidity of 41–44 mg/l, and it reduced the amount of water consumed
in eight mechanically ventilated patients compared with a conventional active
humidifier. During a 24-h test period there was no water condensation in the
ventilator tubing with the new device.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"009:25"
]
|
| contactPoint |
{
"fn": "NIH",
"@type": "vcard:Contact",
"hasEmail": "mailto:info@nih.gov"
}
|
| description | A new humidifier for use during mechanical ventilation in endotracheally intubated patients is described and tested. The humidifier is based on a heat-moisture exchanger, which absorbs the expired heat and moisture and releases it into the inspired air. External heat and water are then added at the patient side of the heat-moisture exchanger, so that the inspired gas should reach 100% humidity (44 mg/l) at 37°C. In bench tests using constant and decelerating inspiratory flow and minute volumes of 3–25 l the device gave an absolute humidity of 41–44 mg/l, and it reduced the amount of water consumed in eight mechanically ventilated patients compared with a conventional active humidifier. During a 24-h test period there was no water condensation in the ventilator tubing with the new device. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Official Government Data Source",
"mediaType": "text/html",
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"downloadURL": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC29037/"
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|
| identifier | https://healthdata.gov/api/views/8bsj-264a |
| issued | 2025-07-13 |
| keyword |
[
"airway-humidification",
"heat-moisture-exchanger",
"mechanical-ventilation",
"nih",
"respiratory-therapy"
]
|
| landingPage | https://healthdata.gov/d/8bsj-264a |
| modified | 2025-09-06 |
| programCode |
[
"009:033"
]
|
| publisher |
{
"name": "National Institutes of Health",
"@type": "org:Organization"
}
|
| theme |
[
"NIH"
]
|
| title | A new device for 100 per cent humidification of inspired air |
