Medical Vorrichting with a jack assembly for connection to a device for providing medical fluids

The invention relates to a medical device (2, 3) with a female unit (B) for connection of a plug unit (A) of a device (1) for delivering medical fluids, wherein the medical device (2, 3), in particular a extracorporeal blood treatment device (2), for example extracorporeal dialysis apparatus or device for peritoneal dialysis, or a device (3) for filling the device (1) for providing medical fluids. The socket unit (B) comprises connecting pieces (26, 27) for connection by a connector (29, 30) of a plug unit (A), so that a flow connection can be made for supplying or discharging a liquid. The connecting pieces (26, 27) with the formation of flushing chambers (28, 49) by connecting parts (23, 24) is enclosed, wherein the rinsing chambers of closing pieces (51, 52) are closed, forming part of a closing body (50) are rotatably is arranged on the jack assembly.