Tissue shaving instrument with navigation sensor

A method of tracking a positional movement of a surgical instrument, wherein the surgical instrument includes a shaft, a cutting member, and a navigation sensor positioned on at least one of the shaft or the cutting member, wherein the shaft extends along a longitudinal axis and includes a shaft window opening in fluid communication with an environment, wherein the cutting member is disposed within the shaft, wherein the cutting member includes a cutting edge the method comprising:

• (a) inserting the shaft and the cutting member into a passageway about an anatomy within a patient;
• (b) communicating a positional movement signal data from the navigation sensor within the passageway to a processor;
• and
• (c) tracking the positional movement of at least one of the cutting member and the shaft within the passageway of the patient.

A method of tracking a positional movement of a surgical instrument, wherein the surgical instrument includes a shaft, a cutting member, and a navigation sensor positioned on at least one of the shaft or the cutting member, wherein the shaft extends along a longitudinal axis and includes a shaft window opening in fluid communication with an environment, wherein the cutting member is disposed within the shaft, wherein the cutting member includes a cutting edge, the method comprising:

• (a) inserting the shaft and the cutting member into a passageway associated with a nasal cavity of a patient;
• (b) tracking the positional movement of at least one of the cutting member and the shaft within the passageway associated with the nasal cavity of the patient using a navigation sensor;
• and
• (c) cutting a tissue portion from a mass of tissue or bone within the passageway associated with the nasal cavity with the cutting edge of the cutting member based on the tracking.

A method of tracking a positional movement of a surgical instrument, wherein the surgical instrument includes a shaft, a cutting member, and an electromagnetic navigation sensor positioned on at least one of the shaft or the cutting member, wherein the shaft extends along a longitudinal axis and includes a shaft window opening in fluid communication with an environment, wherein the cutting member is disposed within the shaft, wherein the cutting member includes a cutting edge, the method comprising:

• (a) positioning magnetic field generators about a head of a patient;
• (b) inserting the shaft and the cutting member into a passageway of the head of the patient;
• (c) transmitting alternating magnetic fields of different frequencies to generate an electromagnetic field about the head of the patient;
• and
• (d) tracking the positional movement using an electromagnetic navigation sensor coupled with at least one of the cutting member and the shaft within the passageway of the head of the patient as the cutting member and the shaft move through the electromagnetic field generated by the magnetic field generators.