A DEVICE FOR DETERMINING A POSITION OF A METAL OBJECT IN OR AT A PATIENT BODY

摘要

The invention is directed to a device (100) for determining a position of a metal object (200) in or at a patient body (300), the device (100) comprising:-a sensor unit (102) configured to be moved along a pre-determined trajectory (104),wherein the sensor unit (102) is configured for generating a magnetic field (106) during a movement of the sensor unit (102) along the trajectory (104),wherein the sensor unit (102) is configured for receiving a response signal induced by the generated magnetic field (106),wherein the sensor unit (102) is configured for detecting a change of the response signal induced by the generated magnetic field (106) during said movement due to a change (110) of a distance between the sensor unit (102) and the metal object (200) in or at the patient body (300), andwherein in the sensor unit (102) is configured for determining the position of the metal object (200) based on the detected change (110) of the response signal during said movement.