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Multi-element tip electrode mapping catheter



Multi-element tip electrode mapping catheter



Official Gazette of the United States Patent & Trademark Office Patents 1234(3), May 16



A mapping catheter comprises a catheter body, a handle and a tip section. The catheter body has an outer wall, proximal and distal ends and at least one lumen extending therethrough. The handle is at the proximal end of the catheter body. The tip section comprises a flexible tubing having proximal and distal ends and at least one lumen extending therethrough. The proximal end of the flexible tubing is fixedly attached to the distal end of the catheter body. The tip section comprises an electromagnetic sensor for producing electrical signals indicative of the location of the electromagnetic sensor. The tip section further comprises a multi-element tip electrode mounted at the distal end of the tip section comprising a plurality of electrode members electrically isolated from one another and arranged such that, during use of the catheter within the heart, at least two different electrode members are capable of contacting the endocardium tissue at one time. An electromagnetic sensor cable electrically connect the electromagnetic sensor and extends through the tip section, catheter body and handle for carrying electrical signals from the electromagnetic sensor to a circuit board. The catheter further comprises a plurality of electrode lead wires, each lead wire being electrically corrected to an electrode member and extending through the tubing, catheter body and handle.

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Accession: 035349164

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