CONTAINER ADAPTER AND DELIVERY ASSEMBLY

A container adapter (1) for a medical delivery device, which medical delivery device has a container seat for holding a container in a predefined position, a dosage chamber, a dosing mechanism to transfer a liquid from the container held in the container seat to the dosage chamber and a lock mechanism adapted to prevent operation of the dosing mechanism when no container is held in the container seat and to allow operation of the dosing mechanism when the container is held in the container seat. The container adapter (1) comprises an adapter container seat (11), a joint structure (12) and an unlock mechanism. The adapter container seat (11) is configured to hold a container in a predefined position. The joint structure (12) is configured to be detachably positioned in the container seat of the medical delivery device and to connect the adapter container seat (11) to the dosing mechanism of the medical delivery device (3) when the joint structure (12) is positioned in the container seat of the medical delivery device (3). The unlock mechanism is configured to activate the lock mechanism of the medical delivery device when the joint structure (12) is positioned in the container seat of the medical delivery device and the container is properly held in the adapter container seat (11), and to prevent activation of the lock mechanism of the medical delivery device when the container is not properly held in the adapter container seat (11).