| 摘要 |
<p>A non-return valve arrangement for a bag (1) for collecting liquid excretions from a human body, comprising a valve (9, 10) including a valve flap (9) made of flexible foil and placed between a reservoir portion (8) of the bag and a portion having coupling means (2) to be connected with corresponding fastening means placed around an opening in the body. In order to ensure improved security against leakage through the valve, the arrangement further comprises a second valve (13, 14) arranged downstream of the first valve in the direction of the flow of the liquid excretions, which second valve comprises a flexible foil flap (3) with a foil portion (16) extending back beyond the opening (11) of the first valve and together with the valve flap (9) of the first valve forming a passage to the reservoir portion (8) of the bag. </p> |
