INTERVENTION NEEDLE COMPATIBLE WITH INTENSE MAGNETIC FIELDS AND INTEGRATED NEEDLE TRACKING SYSTEM Russian patent published in 2014 - IPC G01R33/28 A61B5/55 

FIELD: medicine.

SUBSTANCE: invention refers to medical instrument engineering, represents an integrated system for tracking an intervention device, e.g. a needle or a catheter in an intense magnetic field, and a method for making it, and is applicable in a magnetic resonance imaging (MRI) system for biopsy for the purpose of proper diagnosing of various oncologic diseases. The system comprises an elongated rod with a tip made of a Si-plate, as well as one or more passive LC-chains arranged at the tip section; the LC-chain is made in the form of an inductance-capacitance resonator and arranged above the Si-plate. The magnetic field of the MRI activates the LC-chain and makes it generate vibrations that leads to generation of the secondary magnetic field recognisable by an MRI assembly, so that the LC-chain, as well as the tip section are visible on the MRI imaging.

EFFECT: generating no local heat of the device, making the device visible on the MRI imaging, as well as preventing tissue deformities that provides higher accuracy of the device control.

10 cl, 6 dwg