Pull back stent delivery system

Details Pull back stent delivery system Pull back stent delivery system

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61M 25/01 (2006.01)

Patent

CA 2216952

A delivery system (30) for implantation of a medical device in a vessel which has three concentric shafts (32, 34, 36), an inner shaft (36) for carrying a medical device (38), a middle pull back shaft (34) and an outer stiffening shaft (32). The inner and outer shafts are connected together at the proximal end (40) of the delivery system to preclude the inner shaft from moving axially relative to the outer shaft as the middle pull back shaft is retracted. This allows for accurate placement of the medical device.

Dispositif de mise en place (30) permetant de réaliser l'implantation d'un dispositif médical dans un vaisseau. Ce dispositif se compose de trois tiges concentriques (32, 34, 36), une tige interne (36) portant le dispositif médical (38), une tige intermédiaire de retrait (34) et une tige externe de raidissement (32). La tige interne et la tige externe sont reliées l'une à l'autre au niveau de l'extrémité proximale (40) du dispositif de mise en place, de manière à empêcher la tige interne de se déplacer dans le sens axial par rapport à la tige externe au moment où la tige intermédiaire de retrait est retirée. Ce système permet de mettre en place avec précision le dispositif médical.

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