Medication injector with capacitive fill level measurement capacity, and contact sensor

An administering apparatus provided for administering liquids or liquid medicaments to persons and having a reusable filling level measuring system, the administering apparatus comprising:

• a container to be filled with the liquid, said container having an end with an opening for administering the liquid and said container having an outer region;
• at least one pair of capacitive measuring electrodes disposed opposite one another in said outer region of said container for determining a filling level of the liquid in said container;
• electrical shielding surrounding said at least one pair of capacitive measuring electrodes and said container as a sheath, said electrical shielding being formed of conductor tracks applied to a film, and said electrical shielding being disposed at a radial distance from said at least one pair of capacitive measuring electrodes;
• a communication controller applied to said film;
• at least one capacitance measuring device applied to said film for establishing a capacitance between said at least one pair of capacitive measuring electrodes;
• a computer unit applied to said film;
• an antenna applied to said film for transferring measurement values established by said at least one pair of capacitive measuring electrodes or values derived from the measurement values;
• a cover cap surrounding said at least one pair of capacitive measuring electrodes and said container as a sheath, said cover cap being coupled to the administering apparatus by a detachable connection, and said cover cap having a plurality of electrical contacts each being electrically conductively connected to a respective one of said at least one pair of capacitive measuring electrodes;
• and
• said film with said electrical shielding, said capacitance measuring device, said computer unit and said antenna being integrated in said cover cap.