Single origin marker assemblies and methods for their use
AssigneeLEM Surgical AG
InventorsYossi Bar, Lior Kimron, Matvey Rzhavskiy
Life of this patent
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Abstract
An integrated marker system used for registration of a pre-operative images with a surgical robot and subsequent robotic navigation during a robotic surgical procedure in includes a registration marker removably pre-attached to a navigation marker in a predetermined relative orientation. The integrated marker system may be placed on a patient's bony anatomy and used in an initial registration step. After completing registration, the registration marker may be removed leaving navigation marker available for robotic navigation and patient tracking.
Claims12
A method for performing a surgical procedure on a patient using a surgical robot having at least two robotic arms controlled by a controller, the method comprising:
- implanting an integrated surgical marker at an implantation location on a patient's bony anatomy, wherein the integrated surgical marker includes a registration marker removably attached to a navigation marker in a predetermined orientation relative to the registration marker, wherein the registration marker and the navigation marker have a fixed positional offset when attached;
- scanning the patient to produce a registration image showing a location of the registration marker in the bony anatomy;
- registering a location of the registration marker in a robotic coordinate system of the surgical robot to the location of the registration marker in the image;
- wherein the controller calculates a location of the navigation marker in the robotic coordinate system based on a positional offset between the registration marker and the navigation marker in the robotic coordinate system;
- removing the registration marker from the integrated surgical marker and leaving the navigation marker in place;
- and
- tracking changes in the location of the navigation marker in the robotic coordinate system during the robotic surgical procedure.
Dependencies are inferred from the claim text.