Seal for controlled evacuation ostomy appliance
US9636249B2 · kind B2 · utility
8Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2005 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Aug 10, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F5/4404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stoma seal is described for a controlled evacuation ostomy appliance. The stoma seal may have a liquid-responsive property, such as hydrophobic, hydrophilic or absorptive. The stoma seal may have a non-smooth surface, e.g., at a microstructure scale. The non-smooth surface may consist of tortuous channels, protruding seals, or a confronting apertured or porous layer. The liquid-responsive property and/or the non-smooth surface may facilitate separation of flatus from faecal matter and/or facilitate venting of flatus while obstructing stool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.