US 12,310,880 B2
Devices, systems and methods for regulating flow from a stoma on a patient
Robert C. Bell, Jr., St. Johnsbury, VT (US); Damien Shulock, San Francisco, CA (US); Gary J. Margolis, Shelburne, VT (US); and John Ashley, Danville, CA (US)
Assigned to Ostovalve, LLC, Burlington, VT (US)
Filed by OstoValve LLC, Burlington, VT (US)
Filed on Sep. 29, 2023, as Appl. No. 18/374,749.
Application 18/374,749 is a division of application No. 17/846,863, filed on Jun. 22, 2022, granted, now 11,771,585.
Application 17/846,863 is a continuation in part of application No. 16/254,453, filed on Jan. 22, 2019, granted, now 12,178,738.
Claims priority of provisional application 63/270,808, filed on Oct. 22, 2021.
Claims priority of provisional application 62/619,444, filed on Jan. 19, 2018.
Prior Publication US 2024/0024151 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 5/445 (2006.01); A61F 5/44 (2006.01); A61F 5/441 (2006.01)
CPC A61F 5/445 (2013.01) [A61F 5/4407 (2013.01); A61F 2005/4415 (2013.01); A61F 2005/4455 (2013.01)] 15 Claims
OG exemplary drawing
 
1. 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;
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 comprising plural filter layers with different pore sizes 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.