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Published byDenis West Modified over 9 years ago
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Microelectrode Recording Using the FHC micro-drive
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Microelectrode Recording Calculate the micro-drive starting point Assemble the FHC micro-drive Insert the cannulae Insert the microelectrode Additional tracks: –Perform a parallel track –Using the offset positioner Place the DBS lead
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Starting Point Calculation Depth to target is from alignment adapter Offset calculates for FHC stackup Allowable targeting range is 150-180mm
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FHC Calculation Stealth Depth FHC Offset Target Depth Approach Height Start Position X- 135 mm= Y- Z= Start example 160- 135 mm= 25 mm- 15 mm= 10 mm
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FHC Assembly Remove alignment adapter Insert Center positioner Attach drive base Attach micro-drive Note: be sure drive is set to starting depth
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Cannulae insertion Insert stylet through passing cannula Attach collet to passing cannula Pass cannula/collet combo into drive Remove Stylet Insert microelectrode cannula Note: be sure drive is set to starting depth
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Microelectrode insertion Retract microelectrode within sheath Pass microelectrode through cannula Advance electrode Connect recording system cables Note: be sure drive is set to starting depth
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Microelectrode Recording
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Parallel Tracts Retract drive to starting point Remove cannula & re-insert through offset
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Offset Positioner Retract drive to starting point Remove cannula Remove drive and drive base Remove center positioner Choose direction for offset Insert offset positioner Re-assemble drive and cannula
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Possible Tracks Center Positioner 3mm offset at “B” 3mm offset at “G” Center Positioner at 45°
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Lead Placement Set drive to desired target depth Remove microelectrode and spacer cannula Attach lead holder Insert lead - depth stop at 347mm
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