Compensation of tracking inaccuracies

US11596484B2 · kind B2 · utility

Assignee

• Brainlab AG · DE

Inventors

• Jörg Uhde · Munich, DE
• Manfred Weiser · Munich, DE

Key dates

• Filing date: Feb 14, 2020
• Grant date: Mar 7, 2023
• Expiry date: Feb 14, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/10116
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The disclosed method encompasses moving an object such as a medical device or instrument to a desired spatial position based on tracking data provided by a tracking system. Once it is determined from the tracking data that the object has reached the desired spatial position, a projection image is generated, which is registered with the desired spatial position and shows the object. Based on the image data, it is possible to verify whether the object has actually reached the desired position, or whether the object's actual position deviates from the desired position due to errors or inaccuracies, allowing measures to be taken to compensate for these errors or inaccuracies.