Leakage protection unit for a microfluidic device, microfluidic device, methods of operating such a leakage protection unit and method of manufacturing such a leakage protection unit

Leakage protection unit (100) for a microfluidic device (600), wherein the leakage protection unit (100) comprising: a lid member (105); is formed a bottom member (110) in which at least a bottom recess (120) as a fluid container (125), wherein the bottom recess (120) is disposed to the lid member (105) opposite; at least one pressure channel (115) for applying a pressure, wherein the pressure channel (115) is formed in the bottom member (110) and / or the lid member (105); and at least one resistor channel (130) is formed between the lid member (105) and the base member (110) to couple the pressure channel (115) and the fluid container (125) fluidically, wherein the resistance channel (130) has a fluidic resistance for a in the resistance channel (130) befindliches fluid is, characterized in that at least one Druckumleitkanal (215) having a first channel opening (220) and a second channel opening (225) in the lid member (105) is formed, wherein the first channel opening (220) is positioned the fluid reservoir (125) opposite and is second channel opening (225) with the resistor channel (130) fluidically coupled and / or couplable.