Ostomy pouch and filter assembly with successive flap vents

Details Ostomy pouch and filter assembly with successive flap vents Ostomy pouch and filter assembly with successive flap vents

A - Human Necessities

61

F

A61F 5/441 (2006.01)

Patent

CA 2156210

An ostomy pouch is disclosed having a filter assembly located therein, the filter assembly including a thin, flexible outer panel of liquid- and gas-impervious sheet material having a peripheral portion sealed to one wall of the pouch and a central portion unattached to, and preferably spaced from, that wall. The pouch wall overlying the central portion of the filter assembly's outer panel is provided with a flap vent in the form of a curvilinear slit defining at least one flap that normally assumes a closed position coplanar with surrounding portions of the wall but flexes outwardly into open position when venting gases from the pouch. The outer panel of the filter assembly is provided with a second flap vent similar to, but preferably out of register with, the first flap vent of the pouch wall, and components of the filter assembly within the pouch function to brace the flap (or flaps) of the second vent against opening in any direction other than outwardly.

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