Patent · US Expired

Switchable gradient coil arrangement

US6157280A · kind A · utility

9Cited by

5References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Winfried Arz · Koblenzer Straße, DE
Lothar Regenfus · Neunkirchen, DE
Franz Schmitt · Erlangen, DE

Key dates

Filing date	Nov 9, 1999
Grant date	Dec 5, 2000
Priority date	—
Expiry date	Nov 9, 2019

Classification

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

Abstract

A switchable gradient coil arrangement for a magnetic resonance tomography apparatus, has conductor ends in the primary plane (or planes) that can be differently connected to one another and/or to conductor ends in the secondary plane (or planes) to form respective coil arrangements having different field qualities/performance features. The connections are produced by a switch system composed of standard switches for the logical interconnection of the individual sub-coils, in the form of at least four bipolar switches. One of these switches, as a power connection switch connects the ends of each sub-coil to the power terminals, one switch is connected parallel to the sub-coil, and at least one switch is arranged in a connection branch that branches for optional connection to other sub-coils.

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