Venting device for stoma bags
US4449970A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1981 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Sep 3, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F5/441
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flatus filter for attachment in a folded position over the edge of a stoma bag to cover opposed perforations in each of the two external walls of the stoma bag, comprising a gas-permeable pad containing an odor-absorbent substance affixed to one side of an elongate web, with at least a portion of the edges of the pad being exposed and/or with a portion of a major surface of the pad being exposed through one or more perforations in the said web adjacent to the pad, and with at least a portion of the side of the pad remote from the said web being exposed, or covered only by a removable protective backing sheet, and with that part of the filter surrounding the last-mentioned exposed portion being provided with an adhesive coating for attachment of the filter to a stoma bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.