Patent ID: 8070737

Claim:
A controlled evacuation ostomy appliance for controlling the discharge from a wearer's stoma comprising: a. a frame attachable to the wearer and positionable around the stoma, said frame having a stomal aperture; b. a flexible film-like membrane located inside said frame and extending across at least part of the stomal aperture, said membrane being configured for contacting the stoma and for obstructing the discharge of at least solid body waste therefrom; and c. tensioning means for applying tension to said membrane, said tensioning means securing said membrane to said frame and having a closed loop shape, said tensioning means being secured to said membrane radially outside the stoma's periphery and between peristomal skin and upper surface of the stoma, said tensioning means applying tension to said membrane by drawing the membrane into a concave configuration around the stoma by pulling said membrane against the stoma so as to obstruct discharge from the stoma.