Heat and moisture exchanging apparatus

Details Heat and moisture exchanging apparatus Heat and moisture exchanging apparatus

A - Human Necessities

61

M

128/73, 137/1.5

A61M 16/00 (2006.01) A61M 16/10 (2006.01) A61M 16/16 (2006.01)

Patent

CA 1259869

ABSTRACT OF THE DISCLOSURE A respiratory heat and moisture exchanging apparatus comprising a housing is connected at one port to an endotracheal or tracheotomy tube and at another port to a respiratory gas delivery tube. A heat and moisture accumulator in the form of an alternate parallel stack of corrugated paper sheets and flat paper sheets is disposed in the housing so that respiratory gas is passed through the gaps between the corrugated sheets and the flat sheets. At least the corrugated sheets contain a hygroscopic material. During anesthesia and respiration process, the apparatus supplies sufficient heat and moisture to inspiring gas with a less and uniform pressure drop over the entire gas passage area.

510710

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