| 摘要 |
PCT No. PCT/DK95/00387 Sec. 371 Date Mar. 20, 1997 Sec. 102(e) Date Mar. 20, 1997 PCT Filed Sep. 28, 1995 PCT Pub. No. WO96/10378 PCT Pub. Date Apr. 11, 1996A filter arrangement for a bag (1), in particular an ostomy bag with a vent (5), comprising a filter holder (7) fastened to the wall of the bag at the vent and having a through hole forming a passage from the interior of the bag to the surroundings, and a replaceable filter insert (8) designed for positioning in said hole. For position fixing of the filter insert in a use position, the filter holder has both means (13) for engagement with corresponding means (14) on the filter insert where the engagement means are designed such that upon positioning in the use position, the filter insert is prevented from being withdrawn from the filter holder, and within said engagement means has an elastically resilient clamping member (15) which in use position forms a sealing around the filter insert, but allows that this is pushed from the outside through the hole of the filter holder into the bag. The engagement means may be formed as an inwardly facing shoulder portion (13) in the filter holder (7) and a corresponding outwardly facing shoulder portion (14) on the filter insert (8). The filter insert has within said shoulder portion an internal conical end part with inwardly convergent cross section, and the elastically resilient clamping member (15) of the holder forms a sealing lip around said end part of the insert.
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