Patent · US Active

Magnetic resonance coil, device and system

US9759788B2 · kind B2 · utility

3Cited by

3References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ludwig Eberler · Dresden, DE
Razvan Lazar · Erlangen, DE
Jürgen Nistler · Erlangen, DE

Key dates

Filing date	Aug 22, 2014
Grant date	Sep 12, 2017
Priority date	—
Expiry date	Nov 5, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/385
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The embodiments relate to a magnetic resonance coil for a magnetic resonance device with a measuring chamber for an examination object and a cylindrical birdcage antenna arrangement having a plurality of antenna elements disposed at least in some areas around a measuring chamber in the form of circumferential antenna rings or axial outer rods connecting the rings. The antenna elements include electric components, e.g., reactive capacitive and/or inductive systems. The magnetic resonance coil also has at least two antenna feeds, e.g., phase-offset in relation to one another by 90°, by which radio-frequency energy is able to be supplied to the birdcage antenna arrangement. The antenna feeds include at least one symmetrical feed via at least one of the electric components of the birdcage antenna arrangement as well is at least one assigned asymmetrical feed between the birdcage antenna arrangement and a screen connection.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.