A hydraulic coupling bush which is actuated in order to close or open the coupling includes a coupling housing and a bush body which displaceable therein and which has a plug space for receiving a coupling plug, a supply space for fluidic connection to an external supply channel, a low pressure space for fluidic connection to a pressure medium sink, and an interior space connected fluidically to the supply space, a supply seat valve device being provided, via the actuation of which a supply flow path can be configured between the supply space and the plug space, and a relief seat valve device being provided, via the mechanical actuation of which the interior space can be relieved of pressure toward the low pressure space, and via the hydraulic actuation of which, which is dependent on the pressure in the interior space, the pressure in the interior space can be limited.

A connector system for medical fluid includes a male connector and a female connector that have a closed configuration when detached from one another. The first end of the male connector is configured to mate with a first end of the female connector. When the male connector is coupled with the female connector, complementary structures engage to move seals away from ports in the male connector and the female connector, opening a fluid pathway through the connectors. The mating ends of the connectors are not exposed to the medical fluid when the connectors are coupled so that when the connectors are disconnected, the mating ends are substantially free of residual medical fluid.

A connector system for medical fluid includes a male connector and a female connector that have a closed configuration when detached from one another. The first end of the male connector is configured to mate with a first end of the female connector. When the male connector is coupled with the female connector, complementary structures engage to move seals away from ports in the male connector and the female connector, opening a fluid pathway through the connectors. The mating ends of the connectors are not exposed to the medical fluid when the connectors are coupled so that when the connectors are disconnected, the mating ends are substantially free of residual medical fluid.

The invention relates to a sterile connector for the sterile transfer of a liquid medium, in particular a biological medium, from a liquid container (2) into a fluid chamber (3, 3), wherein the sterile connector (1) has a first coupling device (5) and a second coupling device (6). It is proposed that the first coupling device (5) has a fluid inlet (7) and a fluid outlet (8) and also a first cannula (9), the latter having an end which is directed away from the fluid inlet (7) and forms the fluid outlet (8), that the second coupling device (6) has a fluid passage (10) which, in an initial state of the sterile connector (1), is covered axially by a first septum (11), that the fluid outlet (8), in the initial state of the sterile connector (1), is arranged in a hermetically sealed region of the first coupling device (5) and the surface (11a) of the first septum (11) facing axially away from the fluid passage (10) is arranged in a hermetically sealed region of the second coupling device (6), and that, in a fluidic connection process starting from the initial state of the sterile connector (1), a fluidic connection between the fluid inlet (7) and the fluid passage (10) can be produced by the fact that the end of the first cannula (9) forming the fluid outlet (8) pierces the first septum (11) of the second coupling device (6).

A female coupling device includes: a main body, and a clip member coupled to the main body, the clip member having a plurality of arms extending perpendicularly therefrom, with the plurality of arms forming at least one pair of arms, with the pair of arms including a first distance therebetween and a second distance therebetween, with the first distance being sized to engage a clip groove of a mating male coupling device, and with the second distance being sized to disengage the mating male coupling device. In a locked position, the pair of arms is positioned so that the first distance is adjacent to the mating male coupling device. In an unlocked position, the pair of arms is positioned so that the second distance is adjacent to the mating male coupling device.

A joint, a knob assembly, and an appliance having a joint and a knob assembly are provided. The joint may include a housing, a first shaft support, a second shaft support, and a coupling shaft. A slot having a predetermined width extending in a circumferential direction of the housing and a predetermined length extending in a longitudinal direction of the housing may be formed in the housing. The coupling shaft provided in the second support may include a rotary shaft rotatably inserted into the slot. A stopper may be formed to protrude from an outside of the rotary shaft, and a position of the stopper inside the slot may be changed according to rotation of the rotating shaft. The stopper may be provided in the slot so that the stopper interferes with an inner wall of the housing formed by the slot at a predetermined position.

A tube fitting and a tube fitting enabling a configuration that limits a through-flow rate of fluid that has passed through a flow aperture opened by a valve unit are obtained. An upstream-side choke hole in an upstream-side choke section limits the through-flow rate of the fluid. In a case in which the fluid flows at a flow rate exceeding the through-flow rate limited by the upstream-side choke hole, the valve unit opens the closed flows aperture in a flow path. A downstream-side choke hole in a downstream-side choke section disposed at a downstream side of the valve unit limits the through-flow rate of fluid that has passed through the flow aperture.

A tube fitting and a tube fitting enabling a configuration that limits a through-flow rate of fluid that has passed through a flow aperture opened by a valve unit are obtained. An upstream-side choke hole in an upstream-side choke section limits the through-flow rate of the fluid. In a case in which the fluid flows at a flow rate exceeding the through-flow rate limited by the upstream-side choke hole, the valve unit opens the closed flows aperture in a flow path. A downstream-side choke hole in a downstream-side choke section disposed at a downstream side of the valve unit limits the through-flow rate of fluid that has passed through the flow aperture.

A connector for facilitating the connection of one piece of tubing to another so that fluid can flow from one piece to the other in a sterile manner. Characteristics of the connector include, but are not limited to, a flange at one of the connector, the flange comprising a recess for storage of at least part of a protective shield which Is removable after the flange is connected to the flange of a second connector.

A component for a fluidic circuit is provided with at least one tubular portion extending around an axis and with at least one annular identifying band, which is coupled to the tubular portion.