Ostomy bag including a filter

Details Ostomy bag including a filter Ostomy bag including a filter

A - Human Necessities

61

F

128/109

A61F 5/441 (2006.01)

Patent

CA 1325569

ABSTRACT BAG INCLUDING A FILTER A bag or pouch for receiving discharge from the human body is made of two superposed sheets of synthetic plastics material joined around their edges and has a filter attached to an upper part of an interior surface of one of the walls, there being a hole or slit in the wall to allow gases exiting the filter to pass to the exterior of the bag or pouch, and an intervening wall is included to separate the filter region from the remainder of the interior of the bag or pouch, said wall being characterized by haivng a series of scattered holes therein, there being from 100 to 300 holes per square inch (155000 to 465000 holes per square meter) and each hole having a maximum dimension of from 130 to 340 microns. A filter is disclosed for use with the bag which includes the following components laminated together in the following order: (a) a layer of hot-melt adhesive whereby the filter may be affixed to a wall of the bag; (b) a layer of microfine non-woven material; (c) a matrix layer of hot melt adhesive; (d) a filter member of carbon-impregnated polyurethane open cell foam; (e) a matrix layer of hot-melt adhesive; and (f) a layer of non-woven fabric.

592661

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