A colostomy device, which can be referred to as an endoluminal stoma channel, is provided which incorporates a generally cylindrical membrane, with a ring located at either end: an inner luminal ring which is located within the bowel and an outer ring which is rolled over itself to abut against the skin, to which a colostomy bag may be attached. In a corresponding system (stoma discharge control system), the colostomy device (endoluminal stoma channel) is associated with a cover or cap that can facilitate control of discharge from the stoma, and various cover/cap structures are described. Corresponding methods are described.

A drainable ostomy appliance including: first and second walls connected to each other at or near their peripheries, the first wall having a stoma-receiving opening; a collecting cavity defined between the first and second walls; a connection member connected to the first wall for attaching the appliance to a user or for attaching the appliance to a flange for attaching the appliance to a user; an outlet which extends away from the stoma-receiving opening, the outlet terminating at an opening; and a first stiffening member positioned immediately adjacent the opening on a wall of the outlet facing the user, in use, the first stiffening member extending across the outlet; and a second stiffening member positioned next to the first stiffening member, further away from the outlet than the first stiffening member and on the same wall as the first stiffening member, the second stiffening member also extending across the outlet.

A convex ostomy appliance (10) may be configured to have a softness of about 32.6 N*mm to about 68.9 N*mm, wherein the softness is measured in energy expended to compress 3 mm of the convex portion, and a flexibility of about 105.2 N*mm to about 186.6 N*mm, wherein the flexibility is measured in energy expended to deform the ostomy appliance by 30%. The convex ostomy appliance may include a coupling flange (22), a floating flange film (24) having one end secured to the coupling flange, a soft convex insert (26) having a recess (46) in which another end of the floating flange film is secured, an adhesive (28) extending over the soft convex insert, and a stoma opening (18) extending through at least the coupling flange, the floating flange film and the soft convex insert.

Ostomy wafers, ostomy devices incorporating ostomy wafers, and methods of applying ostomy wafers and ostomy devices are disclosed herein. An ostomy wafer may include an external layer and a convex surface coupled to the external layer. An ostomy device may include an ostomy pouch and an ostomy wafer coupled to the ostomy pouch that includes an external layer and a convex surface coupled to the external layer.

A faceplate assembly for an ostomy pouch system including an invertible stoma collar is provided. The invertible stoma collar protrudes toward a stoma and defines an inlet opening. The invertible stoma collar is formed from a flexible material having an elastic memory, such that the stoma collar hugs the stoma as the stoma is received through the inlet opening, and becomes inverted. The inverted stoma collar has a tendency to regain its original shape, and thus, applies sufficient pressure to seal around the stoma without strangulating the stoma.

An ostomy appliance has a base plate and a convex element. The base plate includes a film and an adhesive disposed on a proximal surface of the film, with the convex element attached to a distal surface of the film. A first hole is formed in the base plate and a second hole is formed in the convex element and co-axially aligned with the first hole. The second hole defines an inner perimeter edge that provides a lubricating edge that changes from a solid state to a semi-liquid state when exposed to moisture.

Ostomy wafers, ostomy devices incorporating ostomy wafers, and methods of applying ostomy wafers and ostomy devices are disclosed herein. An ostomy wafer may include an external layer and a convex surface coupled to the external layer. An ostomy device may include an ostomy pouch and an ostomy wafer coupled to the ostomy pouch that includes an external layer and a convex surface coupled to the external layer.

An ostomy base plate has undulations formed in an adhesive composition to provide the adhesive composition with valleys of relatively lower adhesive thickness and ridges of relatively higher adhesive thickness.

An ostomy barrier includes an adhesive layer having a body-facing side, a distal side opposite to the body-facing side, and an opening, a seal substantially aligned with the opening, the seal having an aperture configured to receive a stoma therein, and a flexible connector extending between the seal and the adhesive layer to connect the seal to the adhesive layer. The flexible connector formed from a flexible material to allow relative movement between the seal and the adhesive layer.

A convex shell for use in a base plate of an ostomy appliance includes an annular ring with a through-going hole and a plurality of grooves extending transversely across the annular ring. The grooves alter the flexibility of the annular ring as a first portion of the annular ring is folded around a folding axis toward a second portion of the annular ring.