Devices, systems and methods for regulating flow from a stoma on a patient

A stoma valve appliance, comprising:

• a support member configured to surround a patient stoma and having an inner, skin-facing side and an outer side;
• a base member removably attachable over the support member, said base member defining a first solids and liquids flow path and a second gas vent flow path through the base member, each said flow path having at least one opening on an inner side of the base member, and wherein said second gas vent flow path terminates in at least one exhaust port opposite the inner side of the base member and the base member defines at least one filtration cavity in said gas vent flow path between the at least one inner side opening and at least one exhaust port;
• a valve disposed in the base member configured to control flow through said first flow path, the valve having an open position permitting flow and a closed position preventing flow and being manipulable between the open and closed position by the patient;
• a stem with an inlet and an outlet projecting inwardly from the body member configured to be received in the patient stoma, the stem having sufficient length to extend through the support member to position the inlet in the stoma when the base member is mounted on the support member with the outlet at an opposite end communicating with the first flow path opening in the base member;
• and
• a gas permeable filter seal disposed around the stem covering the at least one second gas vent flow path opening, whereby gasses from the stoma may be vented through said second flow path, while liquids and solids are prevented from entering said second flow path.