View angle-independent visual representation of a cut procedure

US10835321B2 · kind B2 · utility

Assignee

• MAKO Surgical Corp. · US

Inventors

• Kristóf Ralovich · Munich, DE
• Oliver Kutter · Birkenfeld, DE
• Milan Ikits · Sunnyvale, US

Key dates

• Filing date: Dec 13, 2018
• Grant date: Nov 17, 2020
• Expiry date: Apr 23, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2219/2021
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A computer-implemented method for providing a visual representation of material removal from an object by a cutting tool during a cut procedure is described. The method may comprise tracking consecutive cuts a cut trajectory of the cutting tool during the cut procedure, shape sweeping the consecutive poses of the cutting tool, and, for example, accumulating a union of the cut trajectory in a voxelized constructive solid geometry (CSG) grid to produce an object space representation of the union of the cut trajectory. The computer-implemented method may further comprise performing a CSG operation on object space representation of the union of the cut trajectory and a model of the object, and displaying a result of the CSG operation at a display screen.