Medical device for administering a medical solution to a patient, comprising: - a housing , - a receptacle for receiving a pumping apparatus for administering the medical solution to the patient, and - a cover element for covering the receptacle , the cover element , in a connected state, being movably connected to the housing , the connection being releasable for detaching the cover element from the housing , the cover element , in the connected state, being pivotably connected to the housing about a pivot axis (P) by means of a hinge connection, the hinge connection being releasable for detaching the cover element from the housing , the hinge connection being formed by at least one hinge device configured to pivotably connect the cover element to the housing , at least one hinge device comprising a hinge pin arranged on one of the cover element and the housing and a pin receptacle arranged on the other of the cover element and the housing , the pin receptacle being configured to pivotably receive the hinge pin , the hinge pin being insertable into the associated pin receptacle in an insertion direction (A2) directed along the pivot axis (P) for establishing the hinge connection, characterized by a blocking device for blocking, in the connected state of the cover element , a movement of the cover element with respect to the housing opposite to the insertion direction (A2), and further characterized in that the blocking device comprises a blocking pin displaceably arranged on one of the housing and the cover element , the blocking pin being configured to interact with a blocking element arranged on the other of the housing and the cover element for blocking a movement of the cover element with respect to the housing opposite to the insertion direction (A2). - a housing , - a receptacle for receiving a pumping apparatus for administering the medical solution to the patient, and - a cover element for covering the receptacle , the cover element , in a connected state, being movably connected to the housing , the connection being releasable for detaching the cover element from the housing , the cover element , in the connected state, being pivotably connected to the housing about a pivot axis (P) by means of a hinge connection, the hinge connection being releasable for detaching the cover element from the housing , the hinge connection being formed by at least one hinge device configured to pivotably connect the cover element to the housing , at least one hinge device comprising a hinge pin arranged on one of the cover element and the housing and a pin receptacle arranged on the other of the cover element and the housing , the pin receptacle being configured to pivotably receive the hinge pin , the hinge pin being insertable into the associated pin receptacle in an insertion direction (A2) directed along the pivot axis (P) for establishing the hinge connection, characterized by a blocking device for blocking, in the connected state of the cover element , a movement of the cover element with respect to the housing opposite to the insertion direction (A2), and further characterized in that the blocking device comprises a blocking pin displaceably arranged on one of the housing and the cover element , the blocking pin being configured to interact with a blocking element arranged on the other of the housing and the cover element for blocking a movement of the cover element with respect to the housing opposite to the insertion direction (A2). <EOS>