Suction bottle for medical purposes particularly for the connection of drainage tubes

In a suction bottle for medical purposes, and particularly for the connection of drainage tubes, having a valve located in the drainage path, a closure part which can be brought into an open position and a vacuum indicator, the improvement comprising

• a flat plug constituting the closure part,
• a nipple communicating with an interior of the suction bottle, said nipple being formed with transverse openings and having an inner end,
• said flat plug being disposed longitudinally displaceable within said nipple of the suction bottle, said flat plug being displaceable in said nipple, from a basic position thereof on the outside of said transverse openings of the nipple whereby the transverse openings communicate via said nipple with the interior of the suction bottle, inwardly past said transverse openings into a closing position just in front of the inner end of said nipple,
• a drainage-tube connecting plug removeably positioned in said nipple and having a sealing place sealingly engaging said nipple and an end edge constituting a ram for pushing said flat plug inwardly into said interior of the suction bottle,
• said flat plug in said closing position being located at a greater distance from said transverse openings than the distance between said end edge and said sealing place of said drainage-tube connecting plug.