A process for producing a fluid conduit by forming a fluid delivery channel along the outer surface of a first elongate tubular body member. A second elongate tubular body having an inner circumference is fitted about the outer circumference of the first tubular body so as to seal the at least one fluid delivery channel on the outer surface of the first tubular body. A section of the fitted first and second tubular assembly is removed therefrom so as to define a fluid delivery channel in the form of a sealed fluid conduit.