Techniques for patient-specific morphing of virtual boundaries

US12059211B2 · kind B2 · utility

Assignee

• MAKO Surgical Corp. · US

Inventors

• Hans-Ulrich Becker · Fellheim, DE
• Patrick Roessler · Freiburg im Breisgau, DE
• José Luis Moctezuma de la Barrera · Freiburg (Elbe), DE

Key dates

• Filing date: Dec 2, 2022
• Grant date: Aug 13, 2024
• Expiry date: Feb 6, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2210/44
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Surgical systems, computer-implemented methods, and software programs for producing a patient-specific virtual boundary configured to constrain movement and/or operation of a surgical tool in response to the surgical tool interacting with the patient-specific virtual boundary. The implementations include obtaining a generic virtual boundary including a generic surface with a generic edge, and positioning the generic virtual boundary relative to a virtual anatomical model such that the generic surface intersects the virtual anatomical model. The implementations include computing an intersection of the generic surface and the virtual anatomical model to define a cross-sectional contour of the virtual anatomical model, and morphing the generic edge to the cross-sectional contour to produce a customized surface with a patient-specific edge. The implementations include generating a customized face extending from, and along, the patient-specific edge, and producing the patient-specific virtual boundary by merging the customized surface and the customized face.