Heat-moisture exchanger with aerosol by-pass

Details Heat-moisture exchanger with aerosol by-pass Heat-moisture exchanger with aerosol by-pass

2006-07-04

2006-07-04

Bennett, Henry (Department: 3743)

Surgery

Respiratory method or device

Inhaled gas heated or humidified by exhaled gas

C128S204170, C128S205120, C128S911000, C165S089000

Reexamination Certificate

active

07069928

ABSTRACT:
A first and second housing is joined together by a middle housing rotatable with respect to the first and second housing. The first and second housings have conduits passing through exterior walls and an annular ring on an inside wall together with an annular interior edge rotatably joined to first and second side rim channels of the middle housing. A heat-moisture exchanger material having an annular opening through which a tube passes is mounted within the middle housing so that in a first rotatable position air and moisture passes through the first and second housing conduits directly and in a second rotatable position must pass through the heat-moisture exchange material.

REFERENCES:
patent: 6550476 (2003-04-01), Ryder
patent: 6564799 (2003-05-01), Fukunaga et al.
patent: 6588421 (2003-07-01), Diehl et al.
patent: 6792946 (2004-09-01), Waldo, Jr. et al.
patent: 2004/0123974 (2004-07-01), Marler et al.

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