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US 11,890,218 B2Granted
Ostomy pouch filter system
AssigneeConvatec Technologies Inc.
InventorsGary Oberholtzer, Marc Lesko
Life of this patent
Estimating the term…
Abstract
Ostomy appliances with a filter system that is resistant to clogging by waste expelled by the stoma are provided for waste management.
Claims21
An ostomy appliance comprising:
- a front panel and a rear panel, at least partly sealed to one another along their peripheries, said front and rear panels forming a pouch, the rear panel having a stomal opening for positioning around a stoma so that body waste excreted through the stoma is captured in said pouch;
- a filter for deodorization of odorous gas from the body waste, said filter located on the front panel and said filter comprising an opening for emitting said deodorized gas to the atmosphere;
- and
- a center panel between the front and rear panels which at least partly covers said filter, the center panel having a bottom edge that is positioned above the bottom edges of the front and rear panels and is attached to the front and rear panels along the periphery of the pouch;
- wherein at least one of the center panel and front panel comprises one or more protrusions;
- wherein the center panel and front panel are attached by one or more welds located on the bottom edge of the center panel;
- and
- wherein the one or more welds cover less than an entirety of the bottom edge of the center panel to thereby facilitate passage of fluid.
5 more elements
An ostomy appliance comprising:
- a front panel and a rear panel, at least partly sealed to one another along their peripheries, said front and rear panels forming a pouch, the rear panel having a stomal opening for positioning around a stoma so that body waste excreted through the stoma is captured in said pouch;
- a filter for deodorization of odorous gas from the body waste, said filter located on the front panel and said filter comprising an opening for emitting said deodorized gas to the atmosphere;
- and
- a center panel between the front and rear panels which at least partly covers said filter, the center panel having a bottom edge that is positioned above the bottom edges of the front and rear panels and is attached to the front and rear panels along the periphery of the pouch, the center panel and front panel being attached by at least one weld located on the bottom edge of the center panel;
- wherein the center panel comprises a plurality of protrusions that project towards the front panel;
- and
- wherein the plurality of protrusions comprises a first protrusion projecting toward the front panel and having a first geometry;
- and
- wherein the plurality of protrusions comprises a second protrusion projecting toward the front panel and having a second geometry different from the first geometry.
6 more elements
An ostomy appliance comprising:
- a front panel and a rear panel, at least partly sealed to one another along their peripheries, said front and rear panels forming a pouch, the rear panel having a stomal opening for positioning around a stoma so that body waste excreted through the stoma is captured in said pouch;
- a filter for deodorization of odorous gas from the body waste, said filter located on the front panel and said filter comprising an opening for emitting said deodorized gas to the atmosphere;
- and
- a center panel between the front and rear panels which at least partly covers said filter, the center panel having a bottom edge that is positioned above the bottom edges of the front and rear panels and is attached to the front and rear panels along the periphery of the pouch, the center panel and front panel being attached by one or more welds located on the center of the bottom edge of the center panel;
- wherein the center panel comprises a plurality of protrusions projecting toward the front panel;
- and
- wherein at least one of the protrusions projecting toward the front panel is collapsed and at least one other of the protrusions projecting toward the front panel is not collapsed.
4 more elements
Dependencies are inferred from the claim text.