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:
Jul. 14, 2009
Filed:
Dec. 03, 2007
Ronald S. Botten, Gurnee, IL (US);
Ronald S. Botten, Gurnee, IL (US);
Hollister Incorporated, Libertyville, IL (US);
Abstract
An ostomy pouch and high-performance gas filter assembly therefor, in which the filter assembly includes an envelope defining a filter chamber containing a radial flow deodorizing filter pad. The pad's opposite faces are joined to the inner surfaces of the envelope in such a way that the periphery of the pad is fully exposed within the chamber. A first passage extends through the filter and communicates with a first opening in a wall of the envelope over which a first microporous membrane extends. A second opening extends through the opposite wall of the envelope at a distance spaced laterally from the first opening, and a second hydrophobic microporous membrane extends over the second opening. In a preferred embodiment, the filter pad is oblong in shape and has a second passage spaced laterally from the first passage and communicating with the second aperture.