Patent · US Active

Transmission line for use in magnetic resonance system

US8228065B2 · kind B2 · utility

65Cited by

11References

18Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Daniel Wirtz · Hamburg, DE
Oliver Lips · Hamburg, DE
Sascha Krueger · Eindhoven, NL
Bernd David · Henstedt-Ulzburg, DE
Steffen Weiss · Eindhoven, NL

Key dates

Filing date	Dec 20, 2007
Grant date	Jul 24, 2012
Priority date	—
Expiry date	Jan 27, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/288
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An electrically conductive transmission cable for supplying a DC signal safely to an electrical device in the presence of radio-frequency (RF) fields in a magnetic resonance (MR) is disclosed herein. The transmission cable comprises a transmission line (STL) comprising at least a first segment (S1) and a second segment (S2), wherein the first and second segments are electrically connected to each other by a reactive coupling unit (103), and a rectifier unit (101) connected to the transmission line and configured to extract the DC signal (203) from the modulated DC signal (201). The extracted DC signal may be supplied to an electrical device or used for cardiac pacing. The transmission cable finds application in auxiliary devices used in an MR environment, for example an interventional catheter with or without an active tracking circuit (301).

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