1 Canal St Unit B-1, Lawrence, MA 01840 90 Sutton St, North Andover, MA 01845 1 Canal St, Lawrence, MA 01840 4 Davis Ln, Georgetown, MA 01833 978-685-5464, 978-687-1833
James Graham - Swampscott MA, US Robert O'Leary - Newton MA, US Dennis Witz - Georgetown MA, US David Vidal - Amesbury MA, US
International Classification:
A61B005/08
US Classification:
600/532000
Abstract:
A capnograph system sensor head includes an airway adapter, a housing for receiving the airway adapter, a source of infrared radiation coupled to the housing for directing infrared radiation through the airway adapter, and a detector subsystem coupled to the housing and responsive to the infrared radiation after it passes through the airway adapter for providing an analog output. A circuit sub-assembly is integrated with the sensor head and includes a controller responsive to the analog output of the detector subsystem. The controller is configured to adjust the gain of the detector subsystem to output a digital signal representative of the amount of a particular gas flowing through the airway adapter.