Enterostomy appliance

An enterostomy appliance sealing ring for establishing a fluid-tight seal with the skin around the stoma of a person who has undergone an enterostomy, comprising:

• an annular member having a substantially circular central aperture extending completely therethrough, a planar top surface surrounding said substantially circular central aperture and extending the entire distance from said substantially circular central aperture to the perimeter of said annular member, and a plurality of closely spaced V-shaped annular grooves formed into said annular member from said planar top surface thereof, said V-shaped annular grooves being concentric with each other and with said substantially circular central aperture, the spacing between adjacent V-shaped annular grooves being such that an annular pointed thread-shaped formation terminating in a tip is formed between each two adjacent grooves, each annular pointed thread-shaped formation being concentric with said V-shaped annular grooves, with each other, and with said substantially circular central aperture, and the tips of all said annular pointed thread-shaped formations lying in the plane of said top surface;
• said annular member further including an inner cylindrical rim and an outer cylindrical rim both extending in the direction opposite from said planar top surface, each said inner cylindrical rim and said outer cylindrical rim having inner and outer cylindrical surfaces, the outer cylindrical surface of said outer cylindrical rim defining the outer periphery of said annular member and the inner cylindrical surface of said inner cylindrical rim being coincident with said substantially circular central aperture, the inner cylindrical surface of said outer cylindrical rim being spaced from the outer cylindrical surface of said inner cylindrical rim and defining an annular chamber having an open entrance, and an annular lip extending from the inner cylindrical surface of said outer cylindrical rim into said annular chamber at said open entrance thereof.

An enterostomy appliance, comprising:

• a flexible pouch for placing in position over a stoma formed in a person's abdominal wall for receiving feces and other effluent discharged from the person's body through the stoma;
• a flexible annular sealing ring for establishing a fluid-tight seal with the person's skin in the area immediately surrounding the stoma, said sealing ring having a central aperture for receiving the stoma and for communicating with the interior of the pouch, and said sealing ring also having means for grasping and drawing the sealing ring away from the person's skin in order to release flatus accumulated in the pouch;
• and a flexible assembly base carrying the pouch and sealing ring;
• said means for grasping and drawing the sealing ring away from the person's skin being located externally of said pouch and protruding outwardly beyond said flexible assembly base.

An enterostomy appliance, comprising:

• a flexible pouch having an open end for placing in position over a stoma formed in a person's abdominal wall for receiving feces and other effluent discharged from the person's body through the stoma, and having a closed opposite end;
• a flexible sealing ring for forming a seal at the stoma;
• and an assembly base carrying the pouch and the sealing ring;
• said assembly base having an annular central portion including a centrally positioned upstanding annular boss, said upstanding annular boss having a peripheral groove and a planar top surface, a substantially circular central aperture extending from said planar top surface of said upstanding annular boss through the entire annular central portion, and an annular V-shaped groove extending into said upstanding annular boss from the planar top surface thereof, said annular V-shaped groove being concentric with said substantially circular central aperture.