A mounting structure for installation at a corporeal port opening. The mounting structure includes mounting structure for installation at a corporeal port opening, such mounting structure including a blowmolded article comprising enlarged cylindrical sections interconnected by tube segments, adapted to engage the corporeal port opening at a tube segment intermediate the enlarged cylindrical sections and with the enlarged cylindrical sections being in abutting contact with internal and external corporeal surfaces surrounding said port opening. The mounting structure is useful employed for anchoring of a therapeutic device such as an ostomy bag at a corresponding port of the body, with the enlarged sections of the device providing effective anchoring of the mounting structure and permitting the mounting structure to be comfortably worn by a patient during therapeutic intervention.
