Medical electrical lead

A - Human Necessities – 61 – N

Patent

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Details

A61N 1/05 (2006.01)

Patent

CA 2249611

A transvenous bipolar lead (1) specifically designed for coronary sinus implantation. The lead has essentially two main characteristics, the distal end has a 45-degree pre-shape to facilitate introduction of the lead through a catheter and provide optimal positioning of the lead (1) within the coronary sinus. The lead further features a distal electrode tip (20) which itself is canted at an angle of 45 degrees on the distal end of the lead to provide a very close contact with the coronary sinus upper wall and, thus, with the left atrium inferolateral wall. In addition, each of these sections (51, 53) is flexible to permit the lead to be introduced through a relatively small-sized guide-catheter. Finally, the lead further features a center lumen to also permit the lead to be straightened for introduction with a stylet.

Fil bipolaire transveineux (1) conçu spécialement pour une implantation dans le sinus coronaire. Ce fil présente essentiellement deux caractéristiques principales, et l'extrémité distale est coudée préalablement à 45 degrés afin de faciliter l'introduction du fil au travers d'un cathéter et d'optimiser le positionnement du fil (1) à l'intérieur du sinus coronaire. Le fil présente également une pointe d'électrode distale (20) elle-même inclinée à 45 degrés par rapport à l'extrémité distale du fil afin d'assurer un contact intime avec la paroi supérieure du sinus coronaire et, de ce fait, avec la paroi inféro-latérale de l'oreillette gauche. Par ailleurs, chacune de ces sections (51, 53) est souple de manière à permettre l'introduction du fil au travers d'un cathéter-guide de dimensions relativement faibles. Enfin, le fil présente une lumière centrale permettant également de rendre le fil droit en vue de son introduction à l'aide d'un stylet.

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