Abstract: There is disclosed a device for cannulation of a hollow organ, in particular of an arterial or venous blood vessel of a mammalian body, e.g., human, said device comprising a cannula that has a proximal end, a distal end, and a central section located between the proximal end and distal end. The distal end has an expandable structure which can be converted, for example by means of a dilator, from a non-expanded state to an expanded state, and the expandable structure comprises openings at least in the expanded state.

Abstract: The invention relates to a coupling for tubular elements, with at least one plug and one socket, which plug can be inserted into the socket and can be locked therein, and both the plug and the socket have, extending approximately along their longitudinal axis, a channel for a fluid, said channel being arranged in such a way that the fluid can flow through the coupling in a locked state thereof. The plug can be locked in the socket in at least two locking positions, and the socket and/or the plug has at least one opening such that, in a first locking position, the opening connects the channel for a fluid to the environment, and, in a second locking position, the channel for a fluid is isolated from the environment. The invention relates further to a cannula that comprises such a coupling.

Abstract: There is disclosed a device for cannulation of a hollow organ, in particular of an arterial or venous blood vessel of a mammalian body, e.g., human,, said device comprising a cannula that has a proximal end, a distal end, and a central section located between the proximal end and distal end. The distal end has an expandable structure which can be converted, for example by means of a dilator, from a non-expanded state to an expanded state, and the expandable structure comprises openings at least in the expanded state.

Abstract: The invention relates to a coupling for tubular elements, with at least one plug and one socket, which plug can be inserted into the socket and can be locked therein, and both the plug and the socket have, extending approximately along their longitudinal axis, a channel for a fluid, said channel being arranged in such a way that the fluid can flow through the coupling in a locked state thereof. The plug can be locked in the socket in at least two locking positions, and the socket and/or the plug has at least one opening such that, in a first locking position, the opening connects the channel for a fluid to the environment, and, in a second locking position, the channel for a fluid is isolated from the environment. The invention relates further to a cannula that comprises such a coupling.

Abstract: The present invention relates to a device for interrupting a bloodstream flowing through a cavity, whereby the device displays a pipe-shaped cavity and a dilatable component with an aperture positioned in the cavity. Via the aperture, the at least one dilatable component is confluent with a fluid connection, whereby the at least one dilatable component is convertible from a non-dilated into a dilated state by feeding a fluid in from the fluid connection through the aperture. Moreover, mechanisms are provided in the fluid connection that control the feed-in of the fluid into the at least one dilatable component, the mechanisms being controllable via a second fluid.

Abstract: An apparatus for filtering and degassing body fluid has two filter chambers, separated from one another by a filter medium. The first filter chamber is connected to an inflow connector, and the second filter chamber to an outflow connector. An aeration and venting device common to the two filter chambers which is connectable selectably and separately to the first or the second filter chamber.