Connection device for positional fixing of a gradient coil assembly of a nuclear magnetic resonance tomograph

US6882152B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Johann Schuster · Oberasbach, DE
• Stefan Stocker · Großenseebach, DE

Key dates

• Filing date: Jun 25, 2003
• Grant date: Apr 19, 2005
• Expiry date: Jul 26, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3854
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

To position and fix the gradient coil assembly in a basic field magnet assembly of a nuclear magnetic resonance tomograph, an annular clamp element is clamped on a surface of the gradient coil assembly between the gradient coil assembly and the basic field magnet assembly. The clamp element has a conical internal surface which is form-fittingly in contact with a similar surface of the gradient coil assembly, so as to provide a self-centering force on the gradient coil assembly and to maintain the gradient coil assembly with an annular gap between the external surface of the gradient coil surface and the interior surface of the basic field magnet assembly.