Patent ID: 8211072
Filing Date: 2012-07-03
Classification: A61F,Y10T

Abstract:
1. An ostomy bag assembly comprising outer and inner bags secured to one side of a flange; wherein: the flange comprises a polymeric backing film and a layer of bioadhesive for securing the ostomy bag assembly to the body of a patient; the flange has means defining an orifice to enable bodily waste to be received by the inner bag; the outer bag is detachably bonded to a first attachment zone on the polymeric backing film of the flange by means of an annular bonding element which is interposed between the outer bag and the first attachment zone; the inner bag is secured to a second attachment zone on the polymeric backing film of the flange; the first attachment zone surrounds the second attachment zone and is non-overlapping therewith; the second attachment zone surrounds the means defining the orifice; the annular bonding element is formed from a multilayer polymeric material comprising first and second ethylene vinyl acetate layers and a polymeric support layer interposed therebetween; the first ethylene vinyl acetate layer has a coating of an ethylene vinyl acetate copolymer adhesive thereon; and the first ethylene vinyl acetate layer is bonded to the polymeric backing film of the flange by means of the coating of ethylene vinyl acetate copolymer adhesive, and the second ethylene vinyl acetate layer is welded to the outer bag.