Patent ID: 8857470

Claim:
Connection device for connecting a first reservoir with a second reservoir, the connection device comprising a first section configured to receive a first reservoir closed with a seal; a second section connected to the first section; and a piercing element, which penetrates with a piercing end the seal of the first reservoir when the first reservoir is arranged at the first section, wherein the piercing element including a piercing end, a proximal end and a channel and can be moved from a first position into a second position, wherein in the first position the channel of the piercing element is closed and a flow connection between the first and the second section is blocked, while in the second position the channel of the piercing element is released and a flow connection between the first and the second section is made possible; and an adapter disposed within the second section and having a first end configured to contact the proximal end of the piercing element and a second end for receiving the second reservoir.