Ostomy bag

• Main Authors: CHRISTOPHER DAVID BRAY, KIM SARAH FRAMPTON, MARK ANDREW NEWTON, RORY JAMES MAXWELL SMITH
• Format: Patent
• Language: English
• Published: 20.01.2016
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

The invention provides an ostomy bag assembly comprising outer 2 and inner 4 bags secured to one side of an adhesive flange 6; the adhesive flange 6 having means defining an orifice to enable bodily waste from a stomal opening to be received by the inner bag; wherein the adhesive flange is of laminar construction and comprises, in sequence, from a body-contacting surface outwards: (a) a bioadhesive layer 10 for securing the flange to a body surface of a patient about the stomal opening; (b) a first polymeric support layer 8 attached to the bioadhesive layer (a); (c) a heat sealable layer 16 having a heat sealable adhesive surface which releasably bonds the heat sealable layer to the first polymeric support surface; (d) a second polymeric support layer 14 bonded to the heat sealable layer; (e) a weldable polymeric layer 18 to which the inner and outer bags are attached, the weldable polymeric layer being bonded to the second polymeric support layer; the adhesive flange having an annular channel 20 which surrounds the means defining the orifice and extends through layers (c), (d) and (e) so as to form radially inner 22 and outer 24 attachment zones separated by the annular channel 20, the inner bag 4 being attached to the radially inner attachment zone 22 and outer bag 2 being attached to the radially outer attachment zone 24; and wherein the inner and outer bags 4,2, together with attached portions of layers (c), (d) and (e) can each be peeled away from the first polymeric support layer (b). Also provided by the invention are adhesive flange blanks from which the ostomy bag assemblies can be manufactured, as well as methods for the manufacture of the ostomy bag assemblies and the adhesive flange blanks.