Abstract: A method and apparatus for continuously producing preselected lengths of coiled tubing are disclosed. According to the method, plastic tubing is continuously wound onto a rotating main tube shaft (24). Downstream from the point where the tubing begins to wind about the shaft, a heat source (46) is directed toward the coiled tubing, softening it as it traverses thereby. Further downstream, a cool-air source (48) directed at the softened tubing sets the tubing into its coiled form. Subsequently, the coiled tubing is cut into preselected lengths by a cutter (50) downstream from the cool-air source.

Abstract: A co-extruded tubing for the administration of intravenous fluids has an outer layer of a polyester. An inner fluid-contact layer may be of a polyethylene or of a thermoplastic polyurethane. Where the inner fluid-contact layer is of polyethylene, an intermediate tie layer of ethylene-vinyl acetate copolymer may be included to prevent delamination.