The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2006
Filed:
Nov. 21, 2001
Johan Ernst Willy Vrijheid, Eindhoven, NL;
Johannes Jacobus Van Vaals, Eindhoven, NL;
Johan Ernst Willy Vrijheid, Eindhoven, NL;
Johannes Jacobus Van Vaals, Eindhoven, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
An invasive device, such as a catheter, is connected to a supply and control unit via a connection conductorfor the transfer of power supply energy and/or LF signals to and from an electrical circuitin the distal partof the device. During operation the connection conductor traverses the homogeneous magnetic field and the RF field of the MRI apparatus; this may give rise to heating of the connection conductor and/or to a disturbance of said fields. In order to mitigate these drawbacks, the connection conductor in accordance with the invention is subdivided into mutually separated segments-, each of which is much shorter (for example, 1/20) than the wavelength of the RE field in the apparatus; the segments are separated from one another by separating elements-(self-inductances) that provide a high inductance for said RF frequencies and a low inductance for comparatively low frequencies.