Ostomy bag having a bottom drain valve
AssigneeKingsdown Medical Consultants Limited
InventorsPeter L. Steer, John V. Edwards
Life of this patent
Estimating the term…
Abstract
An ostomy bag having a drain valve at a lower region thereof. The valve is formed of a short flexible tube that can be bent or kinked over a support web and a stopper which can be pushed into the open end of the kinked tube.
Claims9
An ostomy bag having front and rear walls of synthetic plastics material sealed to each other around their periphery, an opening in said rear wall for passage of the stoma, and a drain valve secured in an opening at the lower region of said bag, said valve comprising a mounting plate having a tube passing therethrough, a stopper dimensioned to fit in said tube and connected by a tab to the bottom of said mounting plate, and a support web extending from the bottom of said mounting plate to a portion of said tube below said mounting plate whereby the lower portion of said tube is bent over said support web and sealed by said stopper.
A method of making an ostomy bag comprising:
- (a) cutting a coupling hole and a drain tube hole in a single sheet of plastics material,
- (b) welding a drain tube assembly to the edge of the drain tube hole and a coupling member to the edge of the coupling hole said drain tube assembly comprising a mounting plate through which a short flexible tube passes, a support web extending from the bottom surface of said mounting plate to a part of the lower wall of said tube, and a stopper dimensioned to fit in the tube free end and connected to the mounting plate by a tab,
- (c) folding the sheet over along an intermediate line which intersects the drain tube assembly,
- (d) interposing a pair of intermediate sheets of plastics material between the lobes of the folded sheet, and
- (e) welding the periphery of the folded sheets so as to weld the intermediate sheets in place and form a completed bag.
Dependencies are inferred from the claim text.