Drainable collection pouch and filter assembly therefor
First Claim
Patent Images
1. An ostomy pouch having front and rear walls, and an intermediate barrier wall therebetween, all formed of thermoplastic film;
- said walls having edges sealed together to provide said pouch with a pair of adjacent chambers separated by said intermediate barrier wall;
said rear wall having a stoma opening disposed generally along the vertical midline of said rear wall;
adhesive sealing means provided by said rear wall for peristomal sealing engagement with a wearer;
a vent aperture in said intermediate wall at a point spaced laterally from said stoma opening and disposed at an elevation no lower than said stoma opening when said pouch is supported vertically;
a gas discharge port in said front wall at a point spaced laterally from said aperture;
a filter element; and
means supporting said filter element at said discharge port;
at least one of said walls being embossed in the area of said pouch in which said stoma opening, vent aperture, and discharge port are located to prevent said walls from blocking together and obstructing the flow of gases through said chambers.
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Abstract
A collection pouch for use by ostomates, the pouch being drainable to facilitate extended use of the pouch and including a gas venting and filtering assembly having a replaceable deodorizing filter element. A barrier film is disposed within the pouch to protect the filter element from contact with and possible obstruction by exudate. Interior wall surface areas of the double-chambered pouch are raised or embossed, and the filter assembly is internally ribbed, to insure that the pathway for the escape of gases from the pouch remains open.
208 Citations
29 Claims
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1. An ostomy pouch having front and rear walls, and an intermediate barrier wall therebetween, all formed of thermoplastic film;
- said walls having edges sealed together to provide said pouch with a pair of adjacent chambers separated by said intermediate barrier wall;
said rear wall having a stoma opening disposed generally along the vertical midline of said rear wall;
adhesive sealing means provided by said rear wall for peristomal sealing engagement with a wearer;
a vent aperture in said intermediate wall at a point spaced laterally from said stoma opening and disposed at an elevation no lower than said stoma opening when said pouch is supported vertically;
a gas discharge port in said front wall at a point spaced laterally from said aperture;
a filter element; and
means supporting said filter element at said discharge port;
at least one of said walls being embossed in the area of said pouch in which said stoma opening, vent aperture, and discharge port are located to prevent said walls from blocking together and obstructing the flow of gases through said chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- said walls having edges sealed together to provide said pouch with a pair of adjacent chambers separated by said intermediate barrier wall;
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19. An ostomy pouch having front and rear walls, and an intermediate barrier wall therebetween, all formed of thermoplastic film;
- said walls having edges sealed together to provide said pouch with a pair of adjacent chambers separated by said intermediate barrier wall;
said rear wall having a stoma opening disposed generally along the vertical midline of said rear wall;
adhesive sealing means provided by said rear wall for peristomal sealing engagement with a wearer;
a vent aperture in said intermediate wall at a point spaced laterally from said stoma opening and disposed at an elevation no lower than said stoma opening when said pouch is supported vertically;
a gas discharge port in said front wall at a point spaced laterally from said aperture;
a filter element; and
a filter holder externally sealed to said front wall about said gas discharge port and removably supporting said filter element at said port. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
- said walls having edges sealed together to provide said pouch with a pair of adjacent chambers separated by said intermediate barrier wall;
Specification