Activating mechanism for a medicament delivery device and medicament delivery device

An activating mechanism for a medicament delivery device, comprising:

• an outer body,
• a cartridge containing a dosage of a medicament and sealed with a sealing element that is arranged across an open distal end of the cartridge,
• a cartridge carrier adapted to hold the cartridge,
• a needle safety mechanism adapted to hold a double-ended hollow needle and to relatively move along a longitudinal axis (L) with respect to the cartridge and to the outer body to cover or to expose the double-ended hollow needle,
• wherein in an initial position (P1) of the medicament delivery device, the double-ended hollow needle is spaced from the cartridge in a distal direction (D), and
• wherein when the needle safety mechanism is pressed into the outer body, a proximal end of the double-ended hollow needle pierces the sealing element.

A medicament delivery device comprising an activating mechanism, the activating mechanism comprising:

• an outer body,
• a cartridge containing a dosage of a medicament and sealed with a sealing element that is arranged across an open distal end of the cartridge,
• a cartridge carrier adapted to hold the cartridge,
• a needle safety mechanism adapted to hold a double-ended hollow needle and to relatively move along a longitudinal axis (L) with respect to the cartridge and to the outer body to cover or to expose the double-ended hollow needle,
• wherein in an initial position (P1) of the medicament delivery device, the double-ended hollow needle is spaced from the cartridge in a distal direction (D), and
• wherein when the needle safety mechanism is pressed into the outer body, a proximal end of the needle pierces the sealing element.