Patent ID: 8590405

Claim:
A device ( 1 ) for a test strip holder ( 2 ) with a holding and/or positioning device ( 20 ), a mixing chamber ( 24 , 25 ) comprising a reactant ( 27 ) that can be transformed into a liquid phase, a lid ( 19 ) closing the mixing chamber ( 24 , 25 ), a fluid opening ( 38 ) that can be opened for the passage of fluid from the mixing chamber ( 24 , 25 ) to the test strip holder ( 2 ), and a strap ( 17 , 18 ) that positions the lid ( 19 ) with respect to the mixing chamber ( 24 , 25 ), wherein a pin ( 34 , 35 ) is arranged on the lid ( 19 ); in a first closing position, the mixing chamber ( 24 , 25 ) is sealed with the lid ( 19 ); and when the lid ( 19 ) is pressed on more tightly, the pin ( 34 ) opens the fluid opening ( 38 ) in a second closing position.