Method for producing a drip chamber, drip chamber, infusion system or transfusion system

A drip chamber for an infusion or transfusion system, the drip chamber comprising:

• an upper part having a first connection connectable to a container;
• a lower part with a second connection connectable to a tube;
• and
• a middle part that is prefabricated separately from the upper part and the lower part,
• wherein a lower end portion of the upper part and an upper end portion of the lower part are directly contacting and not directly bonded to each other, and the middle part is joined to a lower end portion of the upper part at a first fluid tight connection and to an upper end portion of the lower part at a second fluid tight connection.

A drip chamber for an infusion or transfusion system comprising:

• an upper part with a first connection connectable to a container;
• a lower part with a second connection connectable to a tube;
• and
• a middle part,
• wherein the upper part and the lower part are each connected to the middle part with the middle part surrounding an outer surface of the upper part and an outer surface of the lower part, such that the upper part and the lower part are each connected to the middle part in a fluid-tight manner, and the upper part and the lower part are not connected directly to each other.