Abstract: The invention relates to a filter device for the exchange of substances, comprising a pipe section-shaped housing with a center of gravity and with two housing ends, in which housing a hollow fiber bundle consisting of semi-permeable membranes is arranged, comprising, furthermore, an end cap having a first and second opening, wherein the housing and the end cap configure a first sealing surface which connects the housing and the end cap sealingly, and wherein the first sealing surface is spaced apart further from the center of gravity of the housing than the aperture, and wherein a first fluid chamber is formed between the first sealing surface and the first opening of the end cap, via which first fluid chamber the first opening is connected to the first flow chamber, wherein the housing and the one end cap configure a second sealing surface, wherein the first and second sealing surface are not configured by way of a sealant.

Abstract: A hose clamp, preferably for the closing of catheter extensions, has an integral plastic body extending in an elongate manner with two arms which are resiliently connected to one another at the ends and which each form a projection such that they are disposed opposite one another in the closed state of the hose clamp. The arms can be hooked with one another in the closed state with openings being provided at the front and rear ends thereof for the reception of a hose. The hose clamp generally has the shape of a cylinder with cut-off sides which taper conically at both sides toward the ends of the clamp, with the ends being adapted to the circular shape of a hose is received therein.

Abstract: The invention relates to a hose clamp, preferably for the closing of catheter extensions, comprising an integral plastic body extending in an elongate manner and having two arms which are resiliently connected to one another at the ends and which each form a projection such that they are disposed opposite one another in the closed state of the hose clamp and can be hooked with one another in the closed state with openings being provided at the front and rear ends in each case for the reception of a hose. In accordance with the invention, the hose clamp practically has the shape of a cylinder with cut-off sides which tapers conically at both sides towards its ends, with the ends being adapted to the circular shape of a hose to be inserted.