Technique For Assessing A Relative Pose Between A Surgical Instrument And A Functional Element

A surgical navigation system comprising at least one processor configured to:

• obtain tracking image data comprising at least one image of at least a portion of a functional element that is configured to be coupled to a surgical instrument;
• determine, based on the tracking image data, a tracked pose of the functional element;
• obtain a tracked pose of the surgical instrument;
• determine, based on the tracked pose of the functional element and the tracked pose of the surgical instrument, a relative pose between the functional element and the surgical instrument;
• and
• trigger output of feedback for a surgeon, the feedback indicating whether the relative pose meets one or more predefined criteria.

A non-transitory computer storage medium storing a computer program comprising instructions which, when the program is executed by at least one processor, cause the at least one processor to:

• obtain tracking image data comprising at least one image of at least a portion of a functional element that is configured to be coupled to a surgical instrument;
• determine, based on the tracking image data, a tracked pose of the functional element;
• obtain a tracked pose of the surgical instrument;
• determine, based on the tracked pose of the functional element and the tracked pose of the surgical instrument, a relative pose between the functional element and the surgical instrument;
• and
• trigger output of feedback for a surgeon, the feedback indicating whether the relative pose meets one or more predefined criteria.