Air-to-air heat exchange for medical ventilator
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United States of America Patent
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Issued Date -
Oct 28, 2004
app pub date -
Feb 20, 2003
filing date -
Feb 20, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An air-to-air heat exchanger for pre-cooling and humidifying a breathing gas supplied to a patient. The air-to-air heat exchanger is made of low specific heat material and has an elongate conduit, a plurality of interior fins and a plurality of exterior fins. The elongate conduit is installed adjacent the output of an inspiratory lumen, through which a breathing gas is supplied to a patient. The interior fins extend from an inner surface toward a central axis of the elongate conduit, while the exterior fins extend radially outwardly from an outer surface of the elongate shell.
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