| http://www.w3.org/ns/prov#value | - The structural elements of the invention, for example, tubes, catheters, platforms, sheaths, rings, coils, needles, or the like, disclosed herein can be constructed from a variety of materials including polymers such as silicone, polyurethane, polyethylene, acrylonitrile butadiene stryrene (ABS), polycarbonate, polypropylene, styrene, polyamide (nylon), polyimide, PEEK, PEBAX, polyester, PVC, fluo
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