Electromagnetic surgical tracking system spatial marker, external, non-powered
Definition
A non-powered, noninvasive component of an electromagnetic surgical tracking system intended to provide a reference point for the electromagnetic (EM) tracking of a patient and/or instruments during a surgically-invasive procedure; the EM-tracking diagrams may be subsequently overlaid on radiological images for surgical navigation. Also referred to as a navigation fiducial marker or tracker, it typically consists of a radiopaque bracket-like device with an adhesive backing that is placed on the patient and allows the connection of an electrically-powered marker for active registration. This is a single-use device.