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Abstract

A body implantable lead having multiple spatially displaced electrodes to facilitate the sensing of current vectors in muscle tissue. The lead employs three mutually orthogonal electrode pairs. Each electrode pair is capable of measuring current vectors within the muscle tissue in a different one of three mutually orthogonal directions. All six electrodes are mounted about a single cylindrical lead body. Each of the six electrodes is coupled to an in-line electrical connector at a proximal end of the sensing lead. Because the electrodes are relatively closely spaced on a convenient size lead, being of about 8-14 French in diameter, state of the art processing techniques are required to resolve the direction of current flow within the heart muscle.

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First Claim