Device for taking samples from containers

A device for taking samples from containers, the device comprises:

• a container for containing a substance, the container having a first bar code thereon;
• a body holding the container;
• a first bar code reader facing the container and configured to read the first bar code of the container;
• a cannula capable of being connected to and disconnected from the container;
• a housing holding the cannula connected to the container;
• a linear guide fixed to the housing;
• a test tube for receiving the substance from the container, the test tube having a second bar code thereon;
• a support configured to move along the linear guide and holding the test tube, wherein the support is configured to move between a first position and a second position that is closer to the housing than the first position such that the test tube is separated from the cannula at the first position and the test tube is connected with the container via the cannula at the second position;
• a second bar code reader facing the test tube and configured to read the second bar code of the test tube;
• and
• a blocking component placed at a point of the linear guide between two points corresponding to the first and second positions of the support, wherein the blocking component is configured to block movement of the support between the first position and the second position when the first bar code does not match to the second bar code.