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US 8,298,201 B2Granted
Cleanable filter for an ostomy appliance
AssigneeColoplast A/S
InventorLasse Skoett Albrectsen
Life of this patent
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AssigneeColoplast A/S
InventorLasse Skoett Albrectsen
Estimating the term…
The present invention relates to an in situ cleanable filter for an ostomy appliance comprising a pathway for leading gases to a vent in an ostomy bag and a protective element contained in said pathway to prevent solid or semi-liquid waste from blocking the pathway where a channel or compartment formed by liquid impermeable layer(s) is defining at least part of the pathway and at least a part of said compartment or channel contain a protective element of an open celled compressible material having a memory and having a pore size of at least 60 PPI, said protective element extending in the same direction as the gas flow within the channel or compartment, said channel or compartment having an opening providing access to the pathway from the interior of the bag, said pathway having another opening being connected to a vent in the ostomy bag, optionally via a deodorizing filter. The invention relates to an ostomy appliance comprising a filter as above and a method for emptying and cleaning the filter.
A filter for an ostomy appliance comprising a pathway for leading gases to a vent in an ostomy bag and a protective element in said pathway to prevent solid or semi-liquid waste from blocking the pathway, a channel or compartment formed by liquid impermeable layer(s) defines at least part of the pathway and at least a part of said compartment or channel contain said protective element, said protective element extending in the same direction as gas flow within the channel or compartment, said channel or compartment having a first opening providing access to the pathway from an interior of the bag, and said pathway having a second opening being connected to a vent in the ostomy bag, and characterized in that the protective element is of an open celled compressible material having a memory and wherein said protective element has a decreasing pore size from one end of said protective element to an other end of said protective element.
Dependencies are inferred from the claim text.