• Acta Anaesthesiol Scand · Jan 1987

    Comparative Study

    Evaluation of epidural needles.

    • B Kumar and F M Messahel.
    • Acta Anaesthesiol Scand. 1987 Jan 1;31(1):96-9.

    AbstractEight different epidural needles (Tuohy Everett, Pitkin, Braun Perifix and Portex in 16-gauge, and Becton Dickinson Crawford, Becton Dickinson B-D, Monoject and Portex in 18-gauge) were evaluated using a scanning electron microscope and spectral x-ray analysis. Differences were noted in the metal composition, between disposable and reusable needles with respect to molybdenum content. The inner surface of the 18-gauge Crawford needle was found to be the smoothest and it also had the best clearance between the needle and stilette. The Portex 16-gauge had the best needle/stilette fit at its bevel. The hardness of the metal was found to be satisfactory in all the needles.

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