A device for interventional surgical or medical procedures is presented. The apparatus may include a ballast, a rigid power distribution unit, and a lamp holder. A motor is supported on the hub and is coupled to the wheel for rotating the wheel relative to the hub. Said creel comprises a control device for controlling the yarn tension based on the angular speed or the yarn speed during a start-up andor an interruption of the winding machine, as well as a regulator for regulating the yarn tension during the normal stationary phase of the winding machine. The invention enables to create a business process family which can be easily extended to meet the needs of an as yet unseen situation. 5 mole percent and 1 BTU, respectively.