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5.5.1
Screwdriver
Tips on Inserting/Removing Screws
• Rinsing the screw with NaCl helps reduce friction and eases screw insertion.
• It is easier to insert the screw perpendicular to the bone, rather than at an angle.
• If the patient has a high bone density, you can optionally predrill in order to facilitate the
inserting of the screw into the bone
- For predrilling, do not exceed a drill bit diameter of 1.1 mm and a maximum depth of 5 mm.
Follow the screw manufacturer’s guidelines.
• Generally, the weight of the screwdriver is sufficient for the removal of the screw from the bone.
Placing too much pressure on the head of the screw may cause the head of the screw to be torn
out of the bone when the screwdriver is removed. Excess pressure could also cause the head of
the screw to split or break.
How to Assemble the Screwdriver
①
②
③
Figure 29
Step
1.
Pull back the front sleeve
②
of the handle
③
.
2.
Insert the screwdriver blade
①
into the handle and release the sleeve.
Only use implantable screws and screwdrivers approved by Brainlab to attach the Skull
Reference Package. Otherwise, this could affect navigation accuracy, posing a risk to the
patient.
Screwdriver
68
Instrument User Guide Rev. 2.6 Cranial/ENT Optical Tracking
Summary of Contents for CRANIAL/ENT OPTICAL TRACKING
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Page 28: ...Instrument Calibration Matrix 28 Instrument User Guide Rev 2 6 Cranial ENT Optical Tracking ...
Page 52: ...Electromagnetic Compatibility 52 Instrument User Guide Rev 2 6 Cranial ENT Optical Tracking ...
Page 94: ...Ultrasound Calibration 94 Instrument User Guide Rev 2 6 Cranial ENT Optical Tracking ...
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