An exhaust scavenging system for an internal combustion engine including exhaust passages extending from the engine and an exhaust outlet system. An insulating layer is formed on the base plate around the semiconductor constructing body. The support stent is configured to be collapsible for transluminal delivery and expandable to contact the anatomical annulus of the native valve when the prosthetic valve is positioned in situ. Corrective, or other appropriate, action may be taken in the event of a failure of a critical process. Measures are proposed, as a result of which the digital input unit is suitable for connecting transducers of different supply voltages, where the digital input unit is operable with a reduced power loss.