The Wiley Spinal System has several important features:
1. A 23ga flexible cannula over pencil point spinal needle.
2. Ultra thin braided wire to ensure cannula patency.
3. Atraumatic pencil point needle design spreads dural fibers.
4. Easy-to-read black hub indicator denotes proper cephalad cannula orientation.
The extension set also includes:
1. Reinforcing wik-wire to ensure cannula patency.
2. Microbore extension set with integrated air trapping filter.