A plurality of tubes are connected in a bundle that is bent to follow a curved tortuous path. The method includes providing a plurality of individual tubes and then encapsulating the tubes within a molded or extruded encapsulating material so that the tubes are joined and supported together in a tube assembly. Connectors are provided on the ends of the tubes, either before or after the encapsulating of the tubes. The tube assembly is then bent to the desired bent tortuous shape.