Patent ID: 9022946
Filing Date: 2015-05-05
Classification: A61B,A61M

Abstract:
1. A sensor assembly for positioning in a breathing tube of a patient circuit, comprising: a sensing element configured to measure a parameter associated with gas within the breathing tube, wherein the sensing element includes one of a resistive or a capacitive sensing element for sensing a relative humidity of the gas; an actuator comprising two layers with a vane positioned there-between, wherein the vane and a printed circuit board coupled to the vane are mechanically coupled to the sensing element such that the sensing element is positioned to protrude into an airway path within the breathing tube of the patient circuit; a first connector electrically coupled to the sensing element and configured to provide a measurement signal indicative of the measured parameter; and a second connector electrically coupled to the actuator and configured to provide a drive signal to the actuator to actuate the sensing element.