FIELD CONCENTRATING ANTENNAS FOR MAGNETIC POSITION SENSORS

Abstract

This disclosure relates to a medical device for diagnosis or treatment of tissue within a patient, comprising an elongate member having a lumen extending between proximal and distal ends, a coil disposed around the elongate member, and a magnetic core of high-permeability material positioned at least partially within the coil and extending axially beyond at least one of the proximal or distal coil ends. The axial extension of the magnetic core beyond the coil end focuses the magnetic field at a target region to enhance sensing or therapeutic field delivery. The device is suited for endovascular or intraluminal procedures.

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