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Synthetic sutures made of expanded polytetrafluoroethylene (ePTFE, also known as Teflon), a nonabsorbable (i.e., nonbiodegradable) polymer. These sutures are typically available in sterile monofilament uncoated thread sections (e.g., 18, 30 in [45, 76 cm] long) attached to a single-use needle as an integral device; they are frequently colored for easy identification during surgery. Polytetrafluoroethylene nonabsorbable synthetic sutures keep their tensile strength for very long periods of time and are not absorbed by tissues; their intended use includes vessel and vessel-graft anastomosis and other internal surgical procedures (e.g., hernia repair).
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