Various Spinal Needles
Non-Cutting Spinal Needles

1926 Greene (round, tapering and sharp)
1951 Whittacre (pencil point)
1987 Sprotte (taper point, larger orifice)
1993 Atraucan (Edinburgh. Small linear dural hole)
1995 Eldor (double hole taper, better flow)
1996 Gertie Marx (raisied side port indicator, hole close to needle end)


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