Radiopaque marking of lead electrode zone in a continuous...

A - Human Necessities – 61 – N

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A61N 1/05 (2006.01)

Patent

CA 2426151

A cardiac transvenous defibrillation lead has a continuous coil conductor within a layer of insulation. A portion of the coil conductor is exposed as a defibrillation electrode. In order to enhance fluoroscopic visualization of the exposed electrode during implant, the end of the exposed electrode is marked with a radiopaque element. The element may be in the form of an adhesive filled with radiopaque material that is used to backfill under the layer of insulation. Alternativelly, a tube made of radiopaque material may be installed between the layer of insulation and the coil conductor.

L'invention concerne une électrode de défibrillation cardiaque transveineuse constitué d'un conducteur bobiné continu placé dans une couche d'isolation. Une partie du conducteur bobiné est exposée en tant qu'électrode de défibrillation. Afin d'améliorer la visualisation fluoroscopique de l'électrode exposée durant l'implantation, l'extrémité de celle-ci est marquée au moyen d'un élément radio-opaque. Cet élément peut être un adhésif rempli de matière radio-opaque qui est utilisée pour venir combler le dessous de la couche d'isolation. Dans un autre mode de réalisation, un tube fabriqué à partir de matière radio-opaque peut être placé entre la couche d'isolation et le conducteur bobiné.

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