69168 Brainlab Disposable Clearlens Tracking Array Set. The Disposable Clearlens Tracking Array Must Be Compatible With Existing Brainlab Computer Navigation System. A Complete Functional Reference Array Comprises The Following: 1. A Reference T Geometry For Tibia Tracking 2. A Reference Y Geometry For Femur Tracking Cation 3. Another Tracking For The Pointer And 4. Another Tracking To Check And Confirmed The Cuts ? A Bone Fixator Pins Total 4 That Provides The