The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1995
Filed:
May. 24, 1994
Barry L Schneider, McHenry, IL (US);
Claudio Giori, Riverwoods, IL (US);
Hollister Incorporated, Libertyville, IL (US);
Abstract
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.