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. 18, 1993
Filed:
Oct. 09, 1991
Raimo Sepponen, Helsinki, FI;
Instrumentarium Corp., , FI;
Abstract
An operative instrument for the examination of an object, for example a biopsy tube or a capsule of a radioactive substance intended for radiation therapy. A part of the operative instrument, the active part, is adapted to be detected by NMR methods, such as magnetic resonance imaging, either in a manner that the active part contains a substance having NMR active nuclei or in a manner that the NMR active nuclei in proximity of the active part of the object can emit NMR signals in connection with an NMR or magnetic resonance imaging examination arrangement. A substance, a relaxant, is arranged in interaction with said NMR active nuclei, said relaxant causing activation of the NMR signal by means of dynamic nuclear polarization (DNP) when the electron spin system of said substances is saturated with external energy, i.e. saturation energy.