The incidence of PDPH was compared with use of a 22-gauge Quincke cutting needle and a 25-gauge pencil-point needle.

A thumb screw on the leg with the pencil point allows for fine adjustments of the angle at which the instrument is set. Screws near the points and on the front and back of the instrument adjust the ...

It may be fitted with an adjustable pen point, a pencil point, or one of two needle points. The needle points fit into a cylindrical ridged handle, but the handle apparently cannot be attached to the ...