Humidifier conduit

A conduit for carrying humidified gases comprising:

• at least one axially extensive unit profile helically wound with adjacent turns touching to define an axial passage within said helix, said unit profile when helically wound, with adjacent turns touching, defining at least one enclosed helical passage, around said axial passage each turn of said helically wound profile bonded to adjacent turns of said profile said unit profile including at least one heating means longitudinally disposed therein.

A conduit for carrying humidified gases comprising:

• at least one axially extensive unit profile helically wound with adjacent turns touching to define an axial passage within said helix, said unit profile when helically wound, with adjacent turns touching, defining at least one enclosed helical passage, around said axial passage each turn of said helically wound profile bonded to adjacent turns of said profile,
• said axially extensive unit profile further comprising an inner wall, an outer wall parallel to said inner wall, and a connecting wall perpendicular to said inner and outer walls, said inner and outer walls extending from opposite ends of said connecting wall, each turn of said helically wound unit profile bonded to one adjacent turn adjacent said connecting wall and to the other adjacent turn adjacent the free end of one of the inner and outer walls, the inner wall of said helically wound unit profile forming the inner wall of said conduit and the outer wall of said helically wound unit profile forming the outer wall of said conduit.

A conduit for carrying humidified gases comprising:

• an inner conduit defining the gases flow passage,
• an outer conduit co-axially located with respect to said inner conduit, said outer conduit spaced radially outwardly from said inner conduit, thereby enclosing said inner conduit,
• an intermediate co-axially located intermediate conduit, having at least one helical corrugation, is located between said inner conduit and said outer conduit, the outwardly disposed surface of the peaks of said at least one helical corrugation contacting the inner surface of said outer conduit, and the inwardly disposed surface of the troughs of said at least one corrugation contacting the outer surface of said inner conduit.