• Unique Window Orientation Guides clearly define the cutting window position for the neurosurgeon. The blue bar on the outer canula is on the same side of the needle as the cutting window so that the window faces in the same direction as the bar.
  The window is open when the blue arrow points to the blue bar. Rotating the inner canula closes the window. Cutting is complete when the black bar aligns with the blue bar.
• Surgeon secures the moveable depth stop with a thumbscrew to insure the correct biopsy location.
• Versatile for use with any stereotactic frame or frameless system.
• Assurance of single use Sterile-packaged individually, each needle is disposable to help prevent cross-contamination and eliminate the time and cost of resterilization. Single use also ensures that the needle has not been bent or dulled from previous use.

Unique "O ring inside the captive locking thumb nut holds vacuum in the needle so that suction concentrates at the cutting window and securely holds a larger sample. Unique honed taper on the window edge of the outside canula slices cleanly and easily through the tissue.