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:
Sep. 12, 2000
Filed:
Dec. 31, 1997
Alastair J Martin, St. Louis Park, MN (US);
Johannes J Van Vaals, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention relates to MR guided intervention. For biopsies and similar interventions the challenge is to align a needle or other interventional device along an anticipated trajectory which hits a target point but does not intersect sensitive structures between the target and the surface. The invention includes the following method in order to position an MR visible device: collection of pre-intervention MR-images, establishing of an anticipated trajectory and an entry point by imaging of the MR-visible device and a thick slab positioned parallel to the surface and displaying of the MR localizer in the MR-image of the slab and moving the MR visible localizer to the entry point, imaging of two mutual orthogonal slices passing through the anticipated trajectory between the entry point and the target point and establishing an angle of entry by using for example a MR-visible pen and a targeting device.