Modified guidewire for left ventricular access lead

Details Modified guidewire for left ventricular access lead Modified guidewire for left ventricular access lead

A - Human Necessities

61

M

A61M 25/01 (2006.01) A61N 1/05 (2006.01)

Patent

CA 2345921

An improved guide wire (20) for assisting in implantation of a cardiac lead includes three sections (22, 24, 26). The most distal zone (22) is sufficiently floppy to prevent trauma to the vessel walls through which the guide wire (20), and lead are inserted. An intermediate zone (24) is generally stiffer, and has a cross section less than or equal to the cross section of the distal zone (22). The third zone (26) is stiffer yet, and is joined to the intermediate zone by a shoulder (34) to transfer force to the lead.

Cette invention se rapporte à un fil-guide amélioré (20) destiné à faciliter l'implantation d'une dérivation cardiaque et comprenant à cet effet trois sections (22, 24, 26). La zone la plus distale (22) est suffisamment souple pour empêcher tout traumatisme aux parois du vaisseau dans lequel sont insérés le fil-guide (20) et la dérivation. Une zone intermédiaire (24) est, en général, plus rigide et possède une section transversale inférieure ou égale à celle de la zone distale (22). La troisième zone (26) est encore plus rigide et elle est jointe à la zone intermédiaire par un épaulement (34) servant à transférer les forces à la dérivation.

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