Heat and moisture exchanger

A - Human Necessities – 61 – M

Patent

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Details

A61M 16/16 (2006.01) A61M 16/10 (2006.01)

Patent

CA 2206208

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.

Appareil d'échange de chaleur et d'humidité à brancher sur un patient pour humidifier et chauffer l'air qu'il inspire, comprenant un échangeur de chaleur et d'humidité (5) et un humidificateur (11, 12) relié à l'échangeur (5) pour augmenter l'humidité de l'air inspiré. L'humidificateur, qui comporte une enveloppe (3) reliée à l'échangeur (5), est muni d'un premier orifice (9) communiquant avec l'échangeur, ainsi qu'un autre orifice (6), situé à l'opposé du premier, qui communique avec le patient. La surface intérieure de l'enveloppe est tapissée d'un matériau (11) absorbant l'eau et /ou perméable à la vapeur d'eau, qui humidifie l'air inspiré par le patient.

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