Medical Device Comprising Illumination Arrangement

A medical device for intradermal or subcutaneous treatment of a patient, comprising:

• a piercing element to penetrate a skin portion of the patient;
• an illumination arrangement to illuminate the piercing element and/or to illuminate the skin portion at least during a treatment process,
• wherein the illumination arrangement is further adapted to visually indicate a predefined treatment sequence of the treatment process;
• wherein the illumination arrangement comprising a control element adapted to at least partially correlate activation of the illumination arrangement with the predefined sequence of the treatment process.