Electromagnetic navigation system and method of registration thereof

Abstract

The application discloses an electromagnetic navigation system and a registration method thereof, and relates to the technical field of medical instruments. The electromagnetic navigation system comprises a host computer, a magnetic field generator, a sensor receiver, a tracker, a probe and a positioning needle; the magnetic field generator is electrically connected with the host computer and is used for forming an alternating magnetic field; the sensor receiver is electrically connected with the host computer and is used for converting an induced signal into an electric signal; the tracker is electrically connected with the sensor receiver and is used as a dynamic reference datum of a target object; the probe is electrically connected with the sensor receiver and is used for collecting the positions of marked points attached on a body surface of a target part or a body surface contour in a magnetic field space; a distal end of the probe is provided with a probe head, and the probe head is in a semisphere shape; and the positioning needle is electrically connected with the sensor receiver and is used for intraoperative positioning. The probe structure of the electromagnetic navigation system and the registration method are improved, human operation errors in the registration process of the electromagnetic navigation system are reduced, and the system registration precision and the consistency of the registration precision are improved.

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