A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 5/448 (2006.01) F16L 37/088 (2006.01)
Patent
CA 2174165
A coupling, which may be an ostomy coupling but could be any kind of tube or pipe coupling, includes a first coupling member 10 and a second coupling member 30 which are mutually interengageable and which surround an orifice 70. The coupling also includes a resilient split ring 50 which encircles the two coupling members and has a handle member 51 which can be manipulated to cause the split ring to be deformed. This causes the radially-inwardly extending tabs 52 on the ring to be shifted between respective first positions in which the split ring is undeformed and the tabs lock the two coupling members together and respective second positions in which the split ring is deformed in such a way as to shift the tabs radially outwardly to positions where they permit separation of the two coupling members. The split ring is desirably made of a relatively rigid but springy plastics material, for example an acetal resin. The tabs carried by it are provided with curved or angled ramp surfaces which, when the ring is deformed by a force tending to rotate it relative to the coupling members, cause the tabs to be withdrawn from slots in one of the coupling members so permitting the two coupling members to be separated.
Convatec Technologies Inc.
E. R. Squibb & Sons Inc.
Osler Hoskin & Harcourt Llp
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