Screwdriver - Brainlab CRANIAL/ENT OPTICAL User Manual

REFERENCES
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
• 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
Step
1.
2.
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.
Instrument User Guide Rev. 2.3 Cranial/ENT Optical
- 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.
①
Pull back the front sleeve ② of the handle ③.
Insert the screwdriver blade ① into the handle and release the sleeve.
②
Figure 33
③
71