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:
Jun. 29, 2021
Filed:
Jul. 12, 2018
Koninklijke Philips N.v., Eindhoven, NL;
Christian Findeklee, Norderstedt, DE;
Christoph Leussler, Hamburg, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The present invention provides a passive radio frequency (RF) shim resonator () for field homogenization of an RF field emitted by an RF antenna device () of a magnetic resonance (MR) imaging system (), whereby the passive RF shim resonator () has a first resonating capability and a second resonating capability, and the passive RF shim resonator () comprises a switching device, whereby the switching device is adapted to switch between the first and the second resonating capability in accordance with a TX-mode and a RX-mode of the RF field emitted by the RF antenna device () of the MR imaging system (). The present invention further provides a patient bed () or a patient mattress for use in a magnetic resonance imaging (MRI) system (), whereby the patient bed () or the patient mattress comprises an above passive RF shim resonator (). The present invention further provides a RF antenna device for generating and/or receiving a RF field for use in a MRI system (), whereby the RF antenna device () comprises a coil housing and an above passive RF shim resonator (), wherein the passive RF shim resonator () is located within the coil housing. The present invention also provides a magnetic resonance (MR) imaging system (), comprising an above patient bed () or patient mattress or at least one above RF antenna device ().