초록 ▼

An integrated airway adapter capable of monitoring CO.sub.2 concentration in real time, breath by breath using infrared absorption techniques and monitoring respiratory flow with differential pressure flowmeters under diverse inlet conditions through improved sensor configurations which minimize pha

An integrated airway adapter capable of monitoring CO.sub.2 concentration in real time, breath by breath using infrared absorption techniques and monitoring respiratory flow with differential pressure flowmeters under diverse inlet conditions through improved sensor configurations which minimize phase lag and dead space within the airway adapter.

대표청구항 ▼

[ What is claimed is:] [1.] An integrated airway adapter having a CO.sub.2 concentration monitoring function and a differential pressure measurement function for determining respiratory gas flow, said integrated airway adapter comprising:a housing having a bore and a longitudinal axis;a first pressu

[ What is claimed is:] [1.] An integrated airway adapter having a CO.sub.2 concentration monitoring function and a differential pressure measurement function for determining respiratory gas flow, said integrated airway adapter comprising:a housing having a bore and a longitudinal axis;a first pressure port and a second pressure port for detecting a pressure differential in said respiratory gas flow created within said housing wherein at least one of said first pressure port and said second pressure port is disposed within at least one platform extending into said bore, said first pressure port longitudinal spaced from said second pressure port;a structure deposed between said first pressure port and said second pressure port for creating said pressure differential within said bore;a detection chamber within said housing;a pair of windows located on opposing sides of said detection chamber and aligned along an optical path traversing the detection chamber;each of said windows being optically compatible to allow a beam of infrared radiation originating on one side of said detection chamber to traverse a gas in said sampling chamber to be received by a detecting system to determine CO.sub.2 concentration in said gas; andsaid first pressure port located adjacent to a first side of said detection chamber; andsaid second pressure port located adjacent to an opposing side of said detection chamber.