Medical technology device and medical technology device arrangement

A medical technology device arrangement for treatment of a human or an animal body, comprising:

• at least two medical technology devices which are electrically and mechanically connected together by way of a plug connector arrangement, the at least two medical technology devices including first and second medical technology devices, each having a respective bottom wall and a respective top wall, the top wall of the first medical technology device is structurally configured to support directly thereon the second medical technology device in a state when the first and second medical technology devices are electrically coupled via said plug connector arrangement,
• the plug connector arrangement comprises an electrical plug connector provided at the top wall of the first medical technology device and a counterpart electrical plug connector which is arranged in the bottom wall of the second medical technology device, the bottom wall of the second medical technology device being configured to enable its stacking on the top wall of the first medical device, and the counterpart electrical plug connector being of a complementary configuration relative to the electrical plug connector and being configured to be connected thereto, and
• wherein the electrical plug connector is configured to be in an active position for connection to the counterpart electrical plug by being arranged to be aligned with and to project in an upward direction from the top wall of the first medical technology device, and configured to be movable from the active position into a passive position, wherein, in the passive position, the electrical plug connector is configured to be removed from the top wall of the first medical technology device and the top wall is configured to be closed in a substantially fluid-tight condition, and
• wherein the electrical plug connector in its active position is arranged so as to project into the counterpart electrical plug connector for electrically coupling the two medical technology devices when the second of the medical technology devices is stacked directly upon the first medical technology device.