Robot surgical platform

A surgical implant planning computer comprising:

• at least one network interface connectable to an image database;
• a display device;
• at least one processor;
• and
• at least one memory storing program code that is executed by the at least one processor to perform operations comprising:
• loading first and second images at different orientations from a computed tomography (CT) scan of a bone, which are received from the image database through the at least one network interface, into the at least one memory;
• displaying the first and second images on the display device;
• receiving a user's selection of a surgical screw from among a set of defined surgical screws;
• displaying a graphical screw representing the selected surgical screw as an overlay on the displayed first and second images of the bone;
• receiving as user inputs dragging of the displayed graphical screw to manipulate the angular orientation of the displayed graphical screw including pivoting the displayed graphical screw about the tip and about the head of the displayed graphical screw;
• updating on the display device angular orientation and location of the displayed graphical screw relative to the bone in the first and second images responsive to receipt of the user inputs;
• receiving as a second user input selecting and dragging of the selected screw to simulate an advancement of the selected screw into the bone;
• updating on the display device the advancement of the selected screw only along a trajectory defined by the angular orientation of the selected screw in both the first and second images responsive to receipt of the second user input;
• and
• storing an indication of the selected surgical screw and an angular orientation and a location of the displayed graphical screw in a surgical plan data structure responsive to user input, the surgical plan data structure being configured for use by a robot with a robot base coupled to a robot arm that is movable by motors relative to the robot base.

A method by a surgical implant planning computer, the method comprising:

• displaying on a display device first and second images at different orientations from a computed tomography (CT) scan of a bone with a CT image scanner;
• receiving a user's selection of a surgical screw from among a set of defined surgical screws;
• displaying a graphical screw representing the selected surgical screw as an overlay on the first and second images of the bone;
• receiving as user inputs dragging of the displayed graphical screw to manipulate the angular orientation of the displayed graphical screw including pivoting the displayed graphical screw about the tip and about the head of the displayed graphical screw;
• updating on the display device angular orientation and location of the displayed graphical screw relative to the bone in the first and second images responsive to receipt of the user inputs;
• receiving as a second user input selecting and dragging of the selected screw to simulate an advancement of the selected screw into the bone;
• updating on the display device the advancement of the selected screw only along a trajectory defined by the angular orientation of the selected screw in both the first and second images responsive to receipt of the second user input;
• and
• storing an indication of the selected surgical screw and an angular orientation and a location of the displayed graphical screw in a surgical plan data structure within a memory responsive to receipt of a defined user input.