Convatec Technologies, Inc.

E. R. Squibb Sons, Inc.

Marc Lesko

Gary Oberholtzer

Mingliang Lawrence Tsai

John B Cline

George F Fattman

Kimberly Murray

Nicolani Sorensen

Thomas Harrit

Nicolai Sorensen

George Fattman

Ostomy appliances with a filter system that is resistant to clogging by waste expelled by the stoma are provided for waste management.

Ostomy pouch filter system

An ostomy appliance including an ostomy pouch with a filter and a center pleated panel to protect the filter, facilitate deodorization and deter ballooning.

Ostomy pouch with filtering system

Provided herein are controlled evacuation devices, ostomy devices, methods for the manufacture of such devices and the use of such devices.

One piece ostomy pouch enhancements

The ostomy bag includes a multi-stage filter system that provides contamination protection for a deodorizing filter in the system. The multi-stage filter system also includes protection elements that are impassable to semi-liquid waste material but permit passage of gaseous waste. The protection elements are located such that gaseous waste must pass through the protection elements before it passes through the deodorizing filter. In one embodiment of the invention, the protection elements include a fluid and gas-impermeable cover layer with fluid bypass ports. The fluid and gas-impermeable cover layer is followed by a barrier filter that restricts passage of semi-liquid waste material. The barrier filter is followed by a liquid-impermeable membrane that prevents passage of liquid. The liquid-impermeable membrane is followed by a moisture-absorbent pad that is adjacent the deodorizing filter. The moisture-absorbent pad absorbs moisture condensate that may progress as vapor through the liquid-impermeable membrane. Thus semi-liquid waste cannot contact the deodorizing filter, since it cannot bypass the protection elements to reach the deodorizing filter.

Ostomy bag with multi-stage filter

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Jackson, NJ, United States of America

Marc Lesko