Marker, image identification, manual

Intended purpose

An object that is manually configured and physically placed within the field of view of a medical diagnostic imaging system, and leaves identifying marks on either films or digital images created using various diagnostic imaging modalities. Typically, this device is a surgically invasive radiographic marker used as a radiographic guide to help verify a place where surgery is performed (e.g., starting point of pedicle preparation and screw shank insertion). This device is temporarily used during surgery (not implantable).