| 摘要 |
<p>An ostomy pouch (10) and high-performance gas filter assembly (20) therefor, in which the filter assembly includes an envelope (21) defining a filter chamber (24) containing a radial flow deodorizing filter pad (26). The pad's opposite faces (26a, 26b) are joined to the inner surfaces of the envelope in such way that the periphery of the pad is fully exposed within the chamber. A first passage (29) extends through the filter and communicates with a first opening (34) in a wall of the envelope over which a first microporous membrane (35) extends. A second opening (37) extends through the opposite wall of the envelope at a distance spaced laterally from the first opening, and a second hydrophobic microporous membrane (38) extends over the second opening. In a preferred embodiment, the filter pad is oblong in shape and has a second passage (140) spaced laterally from the first passage (129) and communicating with the second aperture.</p> |
