Automatic image registration of scans for image-guided surgery

US11210780B2 · kind B2 · utility

Assignee

• Brainlab AG · DE

Inventors

• Robert Essenreiter · Munich, DE
• Ralf Schwitzko · Holzkirchen, DE
• Michael Bertram · Borgo San Lazzaro, DE
• Thomas Drexl · Königsbrunn, DE
• Martin Haimerl · Gilching, DE

Key dates

• Filing date: Aug 5, 2016
• Grant date: Dec 28, 2021
• Expiry date: Feb 23, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30204
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Provided is a method for determining a position of an imaged anatomical body part of a patient. The method includes acquiring patient image data describing a digital image of at least part of a reference device and the anatomical body part, acquiring reference device model data describing a model of at least one of at least one internal surface or at least one external surface of the reference device, determining, —based on the patient image data and the reference device model data, reference device image position data describing a relative position between the reference device and the anatomical body part, acquiring reference device tracking data describing a position of the reference device in the tracking reference system, and determining, based on the reference device image position data and the reference device tracking data, body part tracking data describing a position of the anatomical body part in the tracking reference system.