Endocardial lead with multiple branches

Details Endocardial lead with multiple branches Endocardial lead with multiple branches

A - Human Necessities

61

N

A61N 1/05 (2006.01)

Patent

CA 2291063

A lead assembly (10) includes a proximal end (14) that has a connector (16) for electrical connection to a cardiac stimulator (18), such as a pacemaker, a cardioverter/defibrillator, or a sensing instrument. The lead assembly includes an elongated proximal tubular portion (20) that extends distally from the connector. The distal end of the proximal tubular portion is provided with a branch assembly (22) that is joined distally to two elongated distal lead branches (23a, 23b). The distal branches are provided, respectively, with lead tips (24a, 24b) that each function as electrodes for transferring electrical signals from and/or to the myocardium. The branch assembly includes structure for enabling a surgeon to selectively manipulate the distal branches using a single stylet passed through a single lumen in the proximal tubular portion.

L'invention concerne un ensemble sonde (10) pourvu d'une extrémité proximale (14) dotée d'un raccord (16) destiné à être connecté électriquement à un stimulateur cardiaque (18), notamment un rythmeur cardiaque, un défibrillateur, ou un instrument de détection. L'ensemble sonde comprend une partie tubulaire proximale allongée (20) s'étendant de manière distale à partir du raccord. L'extrémité distale de la partie tubulaire proximale est pourvue d'un ensemble à branches (22) relié de manière distale à deux branches (23a, 23b) de sonde distales et allongées. Les branches distales sont respectivement pourvues d'embouts (24a, 24b) de sonde fonctionnant chacun comme des électrodes capables de transférer les signaux électriques en provenance et/ou à destination du myocarde. L'ensemble à branches comporte une structure permettant à un chirurgien de manipuler sélectivement les branches distales en utilisant un seul stylet passé dans une seule lumière dans la partie tubulaire proximale.

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