A variable-depth motorized skull perforator. Technical note

Area of Science:

• Neurosurgery
• Surgical Instrumentation
• Biomedical Engineering

Background:

• Accurate and safe drilling is critical in neurosurgical procedures.
• Existing drill points may pose a risk of skull plate penetration.
• The need for improved control in cranial drilling is well-established.

Purpose of the Study:

• To introduce a novel variable-depth drill point for cranial applications.
• To address the limitations of current drilling technologies in neurosurgery.
• To enhance surgical safety by preventing skull plate over-penetration.

Main Methods:

• Design and fabrication of a variable-depth drill point.
• Inclusion of a mechanism to arrest drilling at a predetermined depth.
• Testing of the drill point's positional stability on simulated and cadaveric skull models.

Main Results:

• The designed drill point successfully maintained its position on the skull surface.
• The mechanism effectively prevented plunging through the skull plate.
• Consistent and reliable depth control was demonstrated across multiple trials.

Conclusions:

• The new variable-depth drill point offers enhanced safety and control for cranial procedures.
• This design has the potential to reduce intraoperative complications associated with drilling.
• Further clinical evaluation is warranted to confirm its efficacy in surgical settings.