A device and method for a surgical navigation system comprising a connection unit (126), a marker carrier unit (116) removably attached to the connection unit (126), an attachment unit (132) connected to the connection unit (126) for fixing the device to a body part of a patient. The connection unit (126) comprises an articulated arm (128) and the marker carrier unit (116) comprises an attachment area (404) for removably attaching the marker carrier element (116) to the connection unit (126).
