Improved system and method for positioning implantable...

Details Improved system and method for positioning implantable... Improved system and method for positioning implantable...

A - Human Necessities

61

M

A61M 25/06 (2006.01) A61M 25/01 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2482971

An improved system and method for placing implantable medical devices (IMDs) such as leads within the coronary sinus and branch veins is disclosed. In one embodiment, a slittable delivery sheath and a method of using the sheath are provided. The sheath includes a slittable hub, and a substantially straight body defining an inner lumen. The body comprises a shaft section and a distal section that is distal to, and softer than, the shaft section. A slittable braid extends adjacent to at least a portion of one of the shaft section and the distal section. In one embodiment of the invention, the sheath further includes a transition section that is distal to the shaft section, and proximal to the distal section. The transition section is softer than the shaft section, but stiffer than the distal section.

L'invention concerne un système et un procédé améliorés pour l'installation de dispositifs médicaux implantables, du type guides, dans le sinus coronaire et les veines qui s'y rattachent. Selon une variante, on décrit un manchon de délivrance pouvant être fendu et un procédé d'utilisation correspondant. Le manchon comprend un moyeu pouvant être fendu, et un corps sensiblement droit définissant une lumière intérieure. Le corps comprend un arbre, et une partie distale par rapport à l'arbre, plus molle que lui. Une tresse pouvant être fendue s'étend en position adjacente au moins à une partie de l'arbre ou de la partie distale. Selon une variante, le manchon comprend aussi une partie de transition, distale par rapport à l'arbre, proximale par rapport à la partie distale susmentionnée, plus molle que l'arbre, mais plus rigide que cette partie distale.

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