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Ostomy Bag

  • US 20070276346A1
  • Filed: 12/23/2004
  • Published: 11/29/2007
  • Est. Priority Date: 12/30/2003
  • Status: Active Grant
First Claim
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1. An ostomy appliance comprising a collecting bag and a gas filtering assembly positioned in a gas path from an interior of the collecting bag to the surroundings, the gas filtering assembly comprising, in the flow direction of the gas from the interior to the surroundings, a pre-filter and a gas filter, wherein the pre-filter comprises a gas entrance and a gas exit and, there between, a gas channel having two opposed, at least substantially liquid impermeable surfaces defining there between a number of constrictions each having a predetermined, largest width, wherein the distance between the two opposed surfaces, at the constriction(s), is significantly smaller than the largest width of the constriction.

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