Unique Instruments of the System

The transforaminal approach can be done with the unique Tube-in-Tube technique or traditonal in single tube technique.

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• Single tube technique: with the inner working tube

• Tube-in-Tube technique: with both working tubes

• Outer working tube with
  partial toothing

• Working tube, oval window
  (inner working tube)​

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The outer working tube has teeth for fixation at the facet joint. The inner working tube can be used as retractor.

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• Forehead reamer for endoscopic
  visualized foraminotomy

• Endoscope inserted in forehead
  reamer and outer working tube

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Tube-in-Tube technique: Only with this technique endoscopic visualized and monitored foraminotomy is possible. The inner working tube is replaced by a forehead reamer