Systems, methods and devices to measure and display inclination and track patient motion during a procedure

A computer-implemented method comprising:

• receiving optical measurements representing positional information of a target;
• determine surgical measurements during a procedure using the positional information;
• receiving and storing first inclination measurements of a patient during a first time of the procedure;
• receiving second inclination measurements during a second time of the procedure;
• determining a patient motion measure using the first and second inclination measurements;
• providing the patient motion measure as a graphical element of a graphical user interface (GUI) for display on a display screen;
• and
• providing the surgical measurements for display by the display screen;
• wherein the first and second inclination measurements and the optical measurements are received from a sensor configured to attach to an anatomy of a patient, the sensor comprising:
• an optical sensor to generate optical measurements in up to six degrees of freedom of the target where the target is configured to provide positional information to the optical sensor;
• and
• an inclination measuring sensor to generate inclination measurements.

A system comprising:

• a sensor comprising an optical sensor configured to generate optical measurements and an inclination measurement sensor configured to generate inclination measurements;
• a target attached to an anatomy of a patient configured to provide positional signals in up to six degrees of freedom to the optical sensor;
• and
• an intra-operative computing unit configured to:
• receive and store first positional signals of the target from the optical sensor;
• receive and store first inclination measurements from the inclination measurement sensor;
• during a second time of the procedure:
• receive second positional signals of the target from the optical sensor;
• and
• receive second inclination measurements from the inclination measurement sensor;
• determine a patient motion measure using the measurements received;
• and
• provide the patient motion measure as a graphical element of a graphical user interface (GUI) for display on a display screen.