Importance

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Abstract

An electrode-carrying catheter has elongate, flexible tubing defining a proximal end, a distal end, and an electrically insulative outer tubular layer intermediate the ends, the tubing including a flexible electrically conductive core of wire and a flexible non-conductive core-covering layer of plastic about the core. At least one electrically conductive ring electrode is crimped on and flush with the outer tubular surface. In order to conduct electrical signals between the proximal end and each of the ring electrodes, a longitudinally-spaced plurality of flexible electrically conductive wires are helically wound around and at least partially into the core-covering layer. The wound wires define a removed section beneath a segment of each of the ring electrodes to enable electrical contact between a respective one of the wound wires and a respective one of the ring electrodes. An electrically conductive flexible flat ribbon is disposed intermediate each of the ring electrodes and the tubing, each ribbon being electrically and physically joined to a respective one of the wound wires and wrapped about the outer tubular surface, each of the ring electrodes being crimped onto a respective one of the ribbons and the outer tubular surface.

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First Claim