摘要：The effect of irradiation on the tensile strength of the various surgical sutures, such as braid and twist silk, nylon monofilament, polyester (tetron) braid, and tetrafluoroethylen (teflon) braid, was investigated. The tensile strength of the sutures decreased with increasing irradiation dose, but the decreasing ratio of the strength of the sutures except teflon braid, irradiated at 2.5 Mrad in dry state, was less than 10%. A significant decreasing tensile strength of the teflon braid sutures was observed in the irradiation lees than 1 Mrad. On the other hand, water soluble extractive of irradiated silk sutures increased slightly with increasing irradiation dose.
