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  • Hemodialysis needles designed for withdrawal and reinfusion of blood from an arteriovenous (AV) fistula during dialysis procedures. These needles typically consist of a thin-walled, small-length (e.g., 25 to 32 mm [1 to 1.25 inch]) stainless steel cannula (typically 14 to 17 gauge) for introduction into the AV fistula and fixed or rotational wings that help with the insertion and add protection to inadvertent pull-out; they usually also include a tube (e.g., 15 to 30 cm length) to be connected to the blood line of a dialysis machine.
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