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:
May. 29, 2007
Filed:
Mar. 11, 2004
Paul Royston Harvey, Eindhoven, NL;
Nicolaas Bernardus Roozen, Eindhoven, NL;
Cornelis Leonardus Gerardus Ham, Eindhoven, NL;
Paul Royston Harvey, Eindhoven, NL;
Nicolaas Bernardus Roozen, Eindhoven, NL;
Cornelis Leonardus Gerardus Ham, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to an MRI system () comprising an examination volume (), a main magnet system () for generating a main magnetic (field (B) in the examination volume, a gradient magnet system () for generating gradients of the main magnetic field, and an anti-vibration system () for reducing vibrations of the gradient magnet system. According to the invention the anti-vibration system comprises a gyroscope () which is mounted to the gradient magnet system. As a result of the gyroscopic effect of the gyroscope, the vibrations of the gradient magnet system are effectively reduced. In an open type MRI system () according to the invention, a separate gyroscope () is mounted to each of the two portions () of the gradient magnet system (), and each gyroscope has an axis of rotation () parallel to the main direction (Z) of the main magnetic field (B).