| 摘要 |
A flushable ostomy pouch having side walls composed of pH-sensitive material capable of dissolving when exposed to an aqueous fluid having a pH substantially above or below a neutral pH level, and containing a quantity of pH-modifying material to initiate dissolution of the pouch when it is discarded in the water of a toilet bowl, is disclosed. The pouch includes a pair of side walls and an external membrane that extends along at least one of the side walls to define a pocket adjacent to that side wall. A quantity of pH-modifying material is contained in the pocket which, when exposed to a generally pH-neutral fluid entering the pocket, is capable of changing the pH of the fluid in the pocket to a level above or below the neutral pH level. The external membrane is formed such that, when the pouch is discarded in a toilet bowl, it allows aqueous fluid to enter the pocket and contact or dissolve the pH-modifying material, thereby causing the fluid entering the pocket to attain a pH substantially above or below the neutral pH level and dissolve the pH-sensitive side wall adjacent to the membrane.
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