Medical Tubing is used for fluid management and drainage as well as with anesthesiology and respiratory equipment, IVs, catheters, peristaltic pumps, and bio-pharmaceutical laboratory equipment. What sets Medical Tubing apart from other types of tubing is its designation for medical applications.

This designation typically comes through standards or certifications which dictate material and specification requirements for tubes. These requirements are in place to ensure that the equipment used for patient care and drug manufacturing is reliable and safe.

Medical Tubing Manufacturing Process
Medical tubing can be made out of several types of plastic, including polyvinyl chloride (PVC), polyethylene, thermoplastic elastomers (TPE), nylon and silicone. However, PVC is the most popular, accounting for approximately 30 percent of the market. The two methods for the manufacture of plastic tubing are Extrusion and Pultrusion.

Extrusion

There are several steps to the extrusion process. The main ingredient is a polymer resin, which is referred to as nurdles, pellets, granules, flakes, or powder, that are fed into a hopper mounted on the extruder’s barrel. The resin descends the feed throat of the hopper into the barrel that has a screw that moves the resin toward the die.

Pultrusion

Pultrusion, like extrusion, is a continuous feed process used to produce a tubing profile. Unlike extrusion, pultrusion pulls reinforced fibers that have been wetted in a thermoplastic resin through a die.

Materials

There are a broad range of materials used to construct medical tubing. Material type determines important performance properties for medical tubes, such as abrasion resistance, hardness, flexibility, and durability.

Silicone

Silicone is an extremely pure material that processes into very flexible, soft tubing, making it less prone to kinking than other materials. It handles a wide range of temperatures – from as low as -100°F up to 500°F – and many products meet regulatory compliances related to the FDA, NSF and USP.

TPE (Thermoplastic Elastomer)

TPE (or thermoplastic elastomer) tubing products are another good option if a high purity, flexible tube is required. A unique advantage to TPE tubing is that it can be welded or sealed to itself using a heat sealer for use in sterile applications.

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