Optical tracking

US11062465B2 · kind B2 · utility

Assignee

• Brainlab AG · DE

Inventors

• Sebastian Stopp · Munich, DE
• Johannes Manus · Munich, DE
• Sven Flossmann · Munich, DE
• Martin Pregler · Aßling, DE
• Uli Mezger · Heimstetten, DE
• Manfred Weiser · Munich, DE

Key dates

• Filing date: Mar 9, 2017
• Grant date: Jul 13, 2021
• Expiry date: Jun 28, 2037

Classification

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

Abstract

A medical tracking method for tracking a spatial position of a medical instrument within a medical workspace including an anatomical structure of a patient. The method includes: acquiring, using a first camera targeted on the medical workspace, instrument position data describing a spatial position of the medical instrument with respect to a first camera; acquiring, using a second camera and at least one optical tracking marker that is adapted to be recognized by the second camera, camera position data describing a spatial position of the first camera with respect to the anatomical structure, determining, based on the instrument position data and the camera position data, tracking data describing the spatial position of the medical instrument with respect to the anatomical structure; and tracking the spatial position of the medical instrument within the medical workspace using the tracking data.