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Related Experiment Videos

[Navigated control: a new concept in computer assisted ENT-surgery].

G Strauss1, K Koulechov, R Richter

  • 1Klinik und Poliklinik für HNO-Heilkunde/Plastische Operationen, Universität Leipzig. strg@medizin.uni-leipzig.de

Laryngo- Rhino- Otologie
|August 5, 2005
PubMed
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This study introduces a novel mechatronic system for Functional Endoscopic Sinus Surgery (FESS), enhancing safety by automatically controlling a surgical shaver based on navigation and patient CT data. The system ensures precise instrument operation within the defined surgical workspace, reducing risks during paranasal sinus surgery.

Area of Science:

  • Medical Mechatronics
  • Surgical Navigation Systems
  • Otolaryngology (ORL) Surgery

Background:

  • Conventional computer-assisted surgery (CAS) solutions in ORL surgery can be complex.
  • Surgeons require enhanced safety and reduced cognitive load during intricate procedures like Functional Endoscopic Sinus Surgery (FESS).

Purpose of the Study:

  • To develop and evaluate a mechatronic system for ORL surgery, specifically a navigation-controlled shaver for FESS.
  • To enhance surgical precision and safety by regulating the shaver's operation based on a pre-defined virtual workspace derived from patient CT data.

Main Methods:

  • A mechatronic system was designed to automatically control a surgical shaver (on/off regulation).
  • The system utilizes patient-specific CT data to define a virtual surgical workspace.

Related Experiment Videos

  • Shaver operation is regulated based on its position relative to the planned workspace, with automatic interruption if it deviates.

    • Main Results:

    • The system demonstrated an average registration accuracy of 1.08 mm for the surgical shaver.
    • The pre-defined surgical workspace was converted with an average deviation of 3.1 mm across all levels.
    • The average time for segmenting the surgical workspace from CT data was 4.23 minutes per case.

    Conclusions:

    • The study proves the feasibility of a mechatronic assistant system for navigated paranasal sinus surgery.
    • This approach offers redundancy and cognitive discharge for the surgeon, improving upon conventional CAS systems.
    • The principle holds potential for future applications in ORL surgery, including powered instruments for drilling, laser, and high-frequency surgery.