Ostomy bag

Claim 2

An ostomy appliance having an ostomy bag provided with a stoma encircling opening adjacent one end of one side thereof, a coupling member having a portion secured to said one end of said ostomy bag around said bag opening, said portion extending outwardly from said side of said ostomy bag, said portion having a passage extending between the free end of said coupling member and its end contiguous to said ostomy bag providing an opening of substantially the same size as said ostomy bag opening whereby a stoma may extend into said passage and said ostomy bag, said portion having an uninterrupted surface exposed to said passage and to the interior of said ostomy bag whereby the accumulation of soil on and around said coupling is minimized, said portion having a first engaging element formed thereon dimensioned to engage securely with a second engaging element on a coupling member secured to the body.

Claim 3

The ostomy appliance of claim 1 wherein said first engaging element is constituted by a channel formed on said portion outwardly of said passage to receive a second engaging element constituted by a projection extending from a coupling member secured to the body and wherein said channel is dimensioned to engage the projection to hold the projection securely therein.

Claim 4

The ostomy appliance of claim 1 wherein said first engaging element is constituted by a projection formed on said coupling member extending away from said ostomy bag to engage a second engaging element constituted by a channel formed on a coupling member secured to the body and wherein said projection is dimensioned to engage securely in the channel.

Claim 5

The ostomy appliance of claims 2 or 3 wherein said first and second engaging elements are formed outwardly of said passage and completely encompass it.

Claim 6

The ostomy appliance of claims 2 or 3 wherein said projection has a thin resilient deflectible seal strip extending therefrom sealingly engaging a side of said channel when said first and second engaging elements are engaged with each other.

Claim 7

An ostomy appliance as set forth in claim 4 wherein said projection has a thin resilient deflectible sealing strip extending therefrom completely around its outer periphery to sealingly engage a side of said channel when said first and second engaging elements are engaging each other.

Claim 8

An ostomy appliance as set forth in claim 6 wherein said first engaging element is provided with ears extending radially outwardly therefrom.

Claim 9

An ostomy appliance as set forth in claim 7 wherein said coupling member is made of low density polyethylene.

Claim 10

An ostomy appliance comprising a pad or dressing having a generally circular aperture for passage of the stoma, said pad or dressing aperture encircled by a coupling member and an ostomy bag also having a generally circular aperture for passage of the stoma, said bag aperture encircled by a second coupling member, one of said coupling members being two opposed walls of closed loop annular channel form and the other coupling member of closed loop form having a rib or projection dimensioned to be gripped between the mutually opposed channel walls when said coupling members are connected, said rib or projecton having a thin resilient deflectible seal strip extending therefrom, which, when said rib or projection is disposed between said walls, springs away therefrom to sealingly engage one of said walls, and in which each coupling member is formed of resilient synthetic plastics materials.

Claim 11

An ostomy appliance comprising a pad or dressing having a generally circular aperture for passage of the stoma, said pad or dressing aperture encircled by a coupling member and an ostomy bag also having a generally circular aperture for passage of the stoma, said bag aperture encircled by a second coupling member, one of said coupling members being two opposed walls of closed loop annular channel form and the other coupling member of closed loop form having a rib or projection dimensioned to be gripped between the mutually opposed channel walls when said coupling members are connected, said rib or projecton having a thin resilient deflectible seal strip extending therefrom, which, when said rib or projection is disposed between said walls, springs away therefrom to sealingly engage one of said walls, and in which each coupling member is formed of resilient synthetic plastics materials.

Claim 12

An appliance according to claim 9 in which said coupling member of channel form is attached to said bag and said other coupling member having a rib or projection is attached to said pad or dressing.

Claim 13

An appliance according to claim 9 in which said coupling member of channel form is attached to said pad or dressing and said other coupling member having a rib or projection is attached to said bag.

Claim 14

An appliance according to claim 9 in which said rib or projection has a peripheral bead extending therefrom in a direction opposite said deflectible seal strip and one of said channel walls has a complementary bead positioned to improve the mechanical security of the coupling.

Claim 15

An appliance according to claim 12 in which each of said two beads has an annular surface thereon inclined to the common axis of said coupling members when connected, the arrangement being such that said two annular surfaces are in face-to-face contact when said two members are in their mutually coupled positions.

Claim 16

An appliance according to claim 13 in which said coupling member of channel form is attached to said bag and said other coupling member having a rib or projection is attached to said pad or dressing.

Claim 17

An appliance according to claim 13 in which said coupling member of channel form is attached to said pad or dressing and said other coupling member having a rib or projection is attached to said bag.

Claim 18

An appliance according to claim 9 in which the one of said coupling members that is secured to the bag has one or more radially outwardly extending ears.

Claim 19

An appliance according to claim 9 in which one or both of said coupling members is made of low density polyethylene.

Claim 20

An appliance according to claim 9 in which said pad or dressing is made of a plastic adhesive material comprising a blend of a water-soluble or water-swellable hydrocolloid and a water-insoluble, viscous elastic binder.

Claim 21

An appliance according to claim 9 in which one of said coupling members defines a gas exit passageway leading from the aperture to the exterior.

Claim 22

An appliance according to claim 19 in which said gas exit passageway contains a filter.

Claim 23

An appliance according to claim 20 in which said filter is in the form of a replaceable filter cartridge.

Claim 24

An appliance according to claim 21 in which said cartridge comprises a housing having an inlet and an outlet and at least one layer of carbon cloth disposed therein so that the gas in passing from said housing inlet to the outlet passes parallel to the surface of said layer of carbon cloth.

Claim 25

An appliance according to claim 22 in which said housing has a plurality of hollow pegs at one of its ends by which it is fixed into a holder located in said gas exit passageway, the interior of said pegs serving as the inlet.

Claim 26

An ostomy appliance comprising a pad or dressing having a generally circular aperture for passage of the stoma, said pad or dressing aperture encircled by a coupling member and an ostomy bag also having a generally circular aperture for passage of the stoma, said bag aperture encircled by a second coupling member, one of said coupling members being two opposed walls of closed looped annular channel form and the other coupling member having a rib or projection dimensioned to be gripped between the mutually opposed channel walls when said coupling members are connected, one of said walls having a thin resilient deflectible seal strip extending therefrom which, when said rib or projection is inserted between said walls, springs outwardly to engage said rib or projection, and in which each coupling member is formed of resilient synthetic plastics material.

Claim 27

An ostomy appliance comprising a pad or dressing having a generally circular aperture for passage of the stoma, said pad or dressing aperture encircled by a coupling member and an ostomy bag also having a generally circular aperture for passage of the stoma, said bag aperture encircled by a second coupling member, one of said coupling members being two opposed walls of closed looped annular channel form and the other coupling member having a rib or projection dimensioned to be gripped between the mutually opposed channel walls when said coupling members are connected, one of said walls having a thin resilient deflectible seal strip extending therefrom which, when said rib or projection is inserted between said walls, springs outwardly to engage said rib or projection, and in which each coupling member is formed of resilient synthetic plastics material.

Claim 28

An appliance according to claim 24 in which said coupling member of channel form is attached to said bag and said other coupling member having a rib or projection is attached to said pad or dressing.

Claim 29

An appliance according to claim 24 in which said coupling member of channel form is attached to said pad or dressing and said other coupling member having a rib or projection is attached to said bag.

Claim 30

An ostomy appliance comprising a pad or dressing having a body contacting surface and an outer surface with an aperture for passage of the stoma extending through said pad or dressing, a coupling member extending outwardly from said pad or dressing and encircling the intersection of said aperture and the outer surface of said pad or dressing and an ostomy bag also having an aperture in one bag wall for passage of the stoma with a second coupling member affixed to said bag wall around the periphery of said bag wall aperture and extending outwardly from said bag wall, said bag coupling member being two opposed walls of closed loop channel form and said pad or dressing coupling member being a closed loop form having a rib or projection dimensioned to be gripped between the opposed channel walls when said coupling members are connected, and a thin resilient seal strip extending at an angle radially inward from an inner surface of said rib or projection which engages the outer surface of said inner channel wall and wherein said rib or projection has a peripheral bead extending therefrom in a direction opposite said deflectible seal strip and said outer channel wall has a complementary bead on its inner surface, each of said two beads having an annular surface inclined to the common axis of said coupling members when connected, the arrangement being such that said two annular surfaces are in face-to-face contact when said two members are in their mutually coupled positions.

Claim 31

An ostomy appliance comprising a pad or dressing having a body contacting surface and an outer surface with an aperture for passage of the stoma extending through said pad or dressing, a coupling member extending outwardly from said pad or dressing and encircling the intersection of said aperture and the outer surface of said pad or dressing and an ostomy bag also having an aperture in one bag wall for passage of the stoma with a second coupling member affixed to said bag wall around the periphery of said bag wall aperture and extending outwardly from said bag wall, said bag coupling member being two opposed walls of closed loop channel form and said pad or dressing coupling member being a closed loop form having a rib or projection dimensioned to be gripped between the opposed channel walls when said coupling members are connected, and a thin resilient seal strip extending at an angle radially inward from an inner surface of said rib or projection which engages the outer surface of said inner channel wall and wherein said rib or projection has a peripheral bead extending therefrom in a direction opposite said deflectible seal strip and said outer channel wall has a complementary bead on its inner surface, each of said two beads having an annular surface inclined to the common axis of said coupling members when connected, the arrangement being such that said two annular surfaces are in face-to-face contact when said two members are in their mutually coupled positions.

Claim 32

An appliance of claim 27 wherein each coupling member is of resilient synthetic plastics material and said pad or dressing is made of a plastic adhesive material comprising a blend of a water-soluble or water-swellable hydrocolloid and a water-insoluble viscous elastic binder.

Claim 33

An appliance of claim 28 wherein said bag coupling member has one or more radially outwardly extending ears.