Head antenna for nuclear magnetic resonance examinations

US5663646A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Rainer Kuth · Annaberg-Buchholz, DE
• Michael Knauth · Nettetal, DE
• Rainer Wirtz · Markgröningen, DE
• Reiner Henkelmann · Erlangen, DE
• Rudolf Moder · Dresden, DE
• Wilhelm Duerr · Erlangen, DE

Key dates

• Filing date: Mar 27, 1996
• Grant date: Sep 2, 1997
• Expiry date: Mar 27, 2016

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B90/14
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A head antenna for nuclear magnetic resonance examinations has an examination chamber, formed so as to accept the head, and an antenna conductor, formed as a frame antenna, that surrounds the examination chamber in an examination position. The antenna conductor is divided into two curved sub-conductors that respectively have electrical contacts at their ends for detachably electrically connecting the sub-contractors together. The first sub-conductor arrangement is fastened to a holding part which is arranged outside the examination chamber and which is made of an electrically non-conductive, non-ferromagnetic material. For fastening the holding part to a patient support, a first fastening assembly is arranged on the holding part. For fixing the position of the head, a second fastening assembly is arranged on the holding part.