Importance

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Abstract

A tear-away sheath is provided for use in an invasive procedure for insertion of a conductive device into a patient while the insertion is guided using Magnetic Resonance Imaging and has a peripheral wall surrounding a hollow interior through which a conductive device can be inserted. At least one and preferably two lines of weakness are formed along the length of the peripheral wall at which the sheath can be torn longitudinally so allow the peripheral wall to be opened to release engagement with a conductive device inserted therethrough. A temperature sensing device is embedded in the peripheral wall at or adjacent the distal end with an optical fiber extending longitudinally of the peripheral wall from the distal end to a position exposed form the patient for communicating the sensed temperature to a display device.

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First Claim