| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a reliable seal in use to block escape of stool while allowing flatus to vent through or around the seal. <P>SOLUTION: A stoma seal 14 is described for a controlled evacuation ostomy (for a colostoma, etc.) appliance. The stoma seal 14 may have a liquid-responsive property, such as hydrophobic, hydrophilic, or absorptive. The stoma seal 14 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. <P>COPYRIGHT: (C)2011,JPO&INPIT |
