Introducer sheath assembly

摘要: An introducer sheath includes a connector body having an inlet and outlet; flexible tube for intravenous use at the outlet, including helical coiled spring plurality of coils, each coil spaced from adjacent coil, thin cylindrical wall prepared protective coating composition completely surrounding to define inner outer surface, portion first thickness between coils second, smaller thickness, with surfaces being indented thereat, comprising thermoplastic polymeric material dissolved in solvent solution, solids content ranging about 4% 18%, said solution selected group consisting tetrahydrofuran, dioxane, methyl ethyl ketone, dimethylformamide, cyclohexane, mixtures thereof, formed on by dipping latter therein then drying room temperature; valve assembly elastic membrane central aperture, second sealing contact slit extending therethrough angle direction fluid flow sheath, communication aperture.