Heat and moisture exchanger
US5906201A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | May 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/1055
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A moisture-heat exchange arrangement which is intended for connection to a patient to humidify and heat the air inhaled by the patient, wherein the arrangement includes a moisture-heat exchanger unit (5) and a humidifier means (11, 12) that connects with the unit (5) to increase the humidity of the inhalation air. The humidifying means includes a casing (3) which is connected with the moisture-heat exchanger unit (5) and which has a first opening (9) that communicates with the moisture-heat exchanger unit and an opposing opening (6) that communicates with the patient. The inner surface of the casing has provided thereon a water-absorbing and/or water-vapour permeable material (11) which delivers moisture to the air inhaled by the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.