Marker for a navigation system

US8534848B2 · kind B2 · utility

Inventors

• Bernhard Hauri · Schweiz, DE
• Thomas Hauri · Schweiz, DE

Key dates

• Filing date: May 5, 2009
• Grant date: Sep 17, 2013
• Expiry date: Sep 18, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/3983
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A marker for a navigation system for determining the spatial position (e.g., of a surgical instrument), said marker including a retroreflective ball (12). A retroreflective surface (13) of the ball (12) is protected by a dimensionally stable, translucent or transparent shell (14) in such a way that the reflected image remains essentially uninfluenced in terms of contour and the position of the centre of gravity.