Ahead of Print: Robotic Auto-Positioning of the Operating Microscope

Screen Shot 2014-01-02 at 10.19.48 AMBackground: Use of the operating microscope has become pervasive since its introduction to the neurosurgical world. Neuronavigation fused with the operating microscope has allowed accurate correlation of the focal point of the microscope and its location on the downloaded imaging study. However, the robotic ability of the Pentero microscope has not been utilized to orient the angle of the microscope or to change its focal length to hone in on a predefined target.

Objective: To report a novel technology that allows automatic positioning of the operating microscope onto a set target and utilization of a planned trajectory, either determined with the StealthStation(R) S7(R) using preoperative imaging or intraoperatively with the microscope.

Methods: By utilizing the current motorized capabilities of the Zeiss OPMI Pentero microscope, a robotic auto-positioning feature was developed in collaboration with Medtronic, Inc Surgical Technologies (StealthStation S7). The system is currently being tested at the authors’ institution.

Results: Three options were developed for automatically positioning the microscope: AutoLock Current Point, Align Parallel to Plan, and Point to Plan Target. These options allow the microscope to pivot around the lesion, hover in a set plane parallel to the determined trajectory, or rotate and point to a set target point, respectively.

Conclusion: Integration of automatic microscope positioning into the operative workflow has potential to increase operative efficacy and safety. This technology is best suited for precise trajectories and entry points into deep-seated lesions.

From: Robotic Auto-Positioning of the Operating Microscope by Spetzler et al.

Full article access for Neurosurgery subscribers at Neurosurgery-Online.com.