Optical surgical tracking system spatial marker cranial anchor
Definition
An invasive component of a surgical navigation and/or tracking system (e.g., optical/electromagnetic device tracking system, computer-assisted neurosurgical ultrasound navigation system, surgical microscope equipped with a tracking camera) intended for intraoperative fixation to a patient’s skull to securely receive optical spatial markers/holders. It is made of metal and typically includes components for its fixation onto the skull (e.g., self-drilling screws) and for attachment of the spatial markers that allow rotation (e.g., connecting pins). This is a reusable device.