Abstract: In examples described herein, a patient monitoring device is configured to determine, based on signals received from signal acquisition devices, whether there is a mismatch among sensors connected to the signal acquisition devices. In some examples, each signal acquisition device is configured to communicate to the monitoring device what types of sensors are attached to the respective signal acquisition device. Additionally or alternatively, each signal acquisition device can determine whether there is a mismatch among the sensors connected to the signal acquisition device and send an indication of the match or mismatch to the monitoring device.

Abstract: Release liners configured to facilitate the positioning of a sensor at a predetermined position of a patient are provided. The release liners may include one or more alignment features configured to approximately align with one or more anatomical features of the patient when the sensor is placed in the predetermined position. The one or more alignment features may include any suitable number of alignment lines. The release liner may be at least partially removable from the sensor.

Abstract: According to various embodiments, methods and systems for determining pressure in the lungs may employ tracheal pressure measurements. The tracheal pressure measurements may be obtained through a pressure monitoring lumen associated with a tracheal tube. Such systems may include a purging or flushing mechanism to keep the pressure monitoring lumen free of any obstructions. The flushing mechanism may utilize respiratory gases diverted from the airway stream and regulated to flush the lumen at relatively low pressures. The resulting pressure measurements may be used to determine a more accurate estimate of lung pressure, which in turn may be used to control a ventilator and provide breathing assistance to a patient.