Abstract: The catheter coupling is intended for providing the proximal end of a catheter with a plug connector forming a fluid transfer connection. The catheter coupling comprises two pivotable jaws enclosing a wavy channel. One of the jaws is provided with a hose in which the catheter may be inserted. When the other jaw is closed, the hose and the catheter is deformed to a wave-shape without any significant change in cross section. Thus, the catheter is secured against being pulled out.

Abstract: A filter for medical fluids comprises a hydrophilic membrane (18) dividing the filter into an inlet chamber (20) and an outlet chamber (22). This prevents air from penetrating the outlet chamber (22). The air retained in the inlet chamber (20) is discharged through vent holes (30, 32). Each vent hole (30, 32) is covered with a hydrophobic membrane (34, 36). According to the invention one of the vent holes (30) is provided in a front wall (38) opposite the hydrophilic membrane (18). The other vent hole (32) is provided in a rear wall (46) located opposite the front wall (38) so that the two vent holes (30, 32) point in opposite directions. Owing to this arrangement of the two vent holes (30, 32) one vent hole (30, 32) points upwards irrespective of the filter position. This improves venting of the inlet chamber (20).

Abstract: The urine measuring device comprises at the lower end of a drip chamber (15) an antireflux valve which prevents liquid from a measuring chamber (11) from refluxing into the drip chamber (15). A valve plate (30) capable of closing the valve opening (26) comprises a loose part which is loosely arranged in the valve chamber (34) and rests on a bracket (28) when the urine measuring device is in upright position. If the urine measuring device is tilted, the urine contained in the measuring chamber (11) presses the valve plate (30) against the valve seat (27) so that reflux into the drip chamber (15) is prevented.

Abstract: The urine measuring device comprises at the lower end of a drip chamber (15) an antireflux valve which prevents liquid from a measuring chamber (11) from refluxing into the drip chamber (15). A valve plate (30) capable of closing the valve opening (26) comprises a loose part which is loosely arranged in the valve chamber (34) and rests on a bracket (28) when the urine measuring device is in upright position. If the urine measuring device is tilted, the urine contained in the measuring chamber (11) presses the valve plate (30) against the valve seat (27) so that reflux into the drip chamber (15) is prevented.

Abstract: The urine measuring device comprises a holder (25) to be attached to the bed, which is provided with a measuring container (10) and a collecting bag (33). The measuring container (10) includes an overflow connection (22) which forms, together with the connecting tube (23) of the holder (25), a tube coupling (40). For emptying purposes the measuring container (10) can be swung up about the axis of the tube coupling (40). The urine is then discharged from the measuring container through the overflow connection (22) and the connecting tube (23) of the holder (25) into the collecting bag (33). Subsequently the empty measuring container (10) merely needs to be swung back into its position of use. This facilitates emptying of the measuring container since the container needs not be removed and attached again.

Abstract: A suction device for body fluids comprises a container (10) being airtightly closable by means of a cover (11). A bag (14) is connected to a cylindrical projection (12) of the cover (11) by means of a support ring (13). A suction opening (15) is provided in the cover (11) to produce a low pressure in the bag (14). Furthermore, the suction opening (15) comprises a branching (31) to produce a low pressure in the container (10) as well. Additionally, the cover (11) comprises an outlet opening (17) enclosed by a hollow body (37). The hollow body (37) can be pushed into the container (10) to empty the bag (14) so that the fluid contained in the bag (14) can be poured out via openings (40, 41) of the hollow cylinder (37).