Abstract: The present invention relates to a closing element for a fluid line, preferably a fluid line of a concentrate container, comprising a closing portion configured to be arranged on an end portion of the fluid line to fluidically close the fluid line, wherein the closing portion comprises an intended breaking point, and a pressure receiving portion configured to receive pressure applied by a connector element to be fluidically connected to the fluid line by breaking the intended breaking point, wherein the pressure receiving portion comprises at least one protrusion projecting outwards from at least a part of the closing element that is configured to come into contact with the connector element.

Abstract: The present invention refers to a system and method for opening a concentrate container without the need for a human to directly handle the concentrate container and connecting the concentrate container to a blood treatment device. Aspects of the invention are directed to a container for concentrate and a blood treatment device.

Abstract: The invention relates to a cleaning device, which has a base body (1), a first and a second line element (2a, 2b), which extend perpendicularly in the base body (1) from a first surface of the base body (1). In addition, the cleaning device has a first through hole (3a), wherein the first through hole (3a) extends at a first point of the first line element (2a) spaced apart from the first surface of the base body (1) to a first lateral surface of the base body (1), which differs from the surface of the base body (1), a first connecting element (31a), which extends from the base body (1) along the first through hole (3a) from the first lateral surface of the base body (1), so that the middle line of the through hole (3a) further extends from the first lateral surface of the base body (1) through the first connecting element (31a).

Abstract: The invention relates to a concentrate container adapter for use in a blood treatment device, in particular a dialysis machine. The concentrate container adapter has a fastening body (1) on which a concentrate bag is able to be fastened, wherein the fastening body (1) has a filling opening (11) and two connection openings (12a, 12b) lying laterally on opposite sides of the filling opening (11), a housing receiving region (13) on the fastening body (1), which is arranged in such a way that by means of the housing receiving region (13) the concentrate container adapter is able to be mounted on a connector housing (10), wherein the housing receiving region (13) is arranged externally on the material which is forming the openings.

Abstract: The invention relates to a connection element (1) for a blood treatment device, in particular for a dialysis machine. The connection element (1) has here an inlet line (2), for letting in a fluid into the connection element (1), an outlet line (3), for letting a fluid out of the connection element (1), at least a first discharge line (21), for discharging a fluid from the connection element (1), wherein the first discharge line (21) is formed in a subsection (22) around the inlet line (2), and wherein the inlet line (2) and the first discharge line (21) are open to a first end section (23) of the connection element (1), and the first end section (23) is fluidically connected with the subsection (22).