Sensor unit and method for sensing a blood related parameter and system including such a sensor unit

摘要

A sensor unit ( 5 ) and a method for sensing a blood related parameter in a bloodstream of a human or an animal, including sensing the blood related parameter(s) in a channel ( 7 ) of a lid member for a main body of a bloodstream access device ( 1 ) which channel allows a continuous blood flow passing between an artery side and a vein side of the bloodstream access device ( 1 ). The invention also concerns a method for monitoring the function of a bloodstream access device and a blood parameter sensor system.