Patent ID: 8467852
Filing Date: 2013-06-18
Classification: A61B

Abstract:
1. A surgical navigation system, comprising: a head support portion configured to support at least a head of a patient; a processor operably associated with a first coil, a second coil and a third coil; the first coil positioned within the head support portion and configured to generate a first navigation field encompassing a volume relative to the patient; an alignment device including a base configured to be connected directly to the head of the patient; the second coil integrated into the base of the alignment device, wherein the second coil is configured to sense the first navigation field produced by the first coil; and the third coil being coupled to an instrument; wherein the processor is configured to cooperate with at least the second coil and the third coil to determine a position of the instrument, and wherein the processor is configured to drive the first coil to generate the first navigation field and the second coil to generate the second navigation field independently such that the second navigation field is generated after ceasing the first navigation field.