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 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 (21, 22, 23) configured to pivotably connect the cover element to the housing, at least one hinge device (21, 22, 23) comprising a hinge pin (210, 220, 230) arranged on one of the cover element and the housing and a pin receptacle (211, 221, 231) arranged on the other of the cover element and the housing, the pin receptacle (211, 221, 231) being configured to pivotably receive the hinge pin (210, 220, 230), the hinge pin (210, 220, 230) being insertable into the associated pin receptacle (211, 221, 231) in an insertion direction directed along the pivot axis 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, 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. - 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 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 (21, 22, 23) configured to pivotably connect the cover element to the housing, at least one hinge device (21, 22, 23) comprising a hinge pin (210, 220, 230) arranged on one of the cover element and the housing and a pin receptacle (211, 221, 231) arranged on the other of the cover element and the housing, the pin receptacle (211, 221, 231) being configured to pivotably receive the hinge pin (210, 220, 230), the hinge pin (210, 220, 230) being insertable into the associated pin receptacle (211, 221, 231) in an insertion direction directed along the pivot axis 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, 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.