?:definition
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Ostomy collection bags with a two-piece configuration in which the collection bag must be used with a separate skin-adhered wafer that the user must couple mechanically to form a functioning appliance. Two-piece ostomy collection bags typically consist of a plastic or elastomeric sac that can be attached to the appliance wafer (i.e., baseplate) to form a complete pouching system. Two-piece ostomy appliances may be joined using either an adhesive or a plastic coupling consisting of interlocking rings on the skin-adhered wafer and pouch. Two-piece ostomy collection bags may have a closed end or incorporate drainage capabilities to allow disposal of accumulated feces or urine into a toilet or alternative receptacle.
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