Telescoping Nose Mechanism for Surgical Boundary Tracking

The nose tube is telescoped by nesting it within the body of the surgical instrument, allowing linear translation along the depth axis while maintaining a compact form factor. The intermediate unit with carriage and leadscrews is nested within the housing, with the nose tube extending from the body when needed.

The mechanical system for linear translation is replaced with a motorized system using a drive motor and leadscrews. The motor converts rotational motion to linear motion through the leadscrew mechanism, providing precise control of the nose tube position along the depth axis.

The tracking system uses optical markers (such as LEDs) that create a visual representation or copy of the instrument's position and orientation. The camera captures this optical copy to determine the instrument's spatial coordinates, pitch, roll, and yaw without requiring direct physical measurement.

The camera and optical markers serve as an intermediary system between the surgical instrument and the tracking control system. The markers attached to the instrument transmit position information to the camera, which then processes this data to determine the instrument's location and orientation in three-dimensional space.

The tracking system continuously monitors the position of the working end relative to the predefined boundary and provides feedback to the control system. When the working end approaches or breaches the boundary, the system can provide visual feedback on a monitor or send signals to actuators to correct the position, ensuring the working end remains within the safe zone.

The system uses the tracking data to automatically control actuators that adjust the instrument's position and orientation, enabling the system to self-correct when approaching boundary violations. The control system processes tracking information and autonomously makes adjustments to maintain the working end within the predefined boundary.