Delivery/recovery system for septal occluder

Details Delivery/recovery system for septal occluder Delivery/recovery system for septal occluder

A - Human Necessities

61

B

A61B 17/00 (2006.01)

Patent

CA 2558247

A delivery/recovery system to allow an operator to deploy and recover a medical implant, such as an occluder for closing a patent foramen ovale (PFO). In one embodiment, the system includes a delivery mandrel for preventing the occluder from moving in the proximal direction, a delivery wire for securing the occluder to the delivery mandrel and preventing unwanted movement in the distal direction, and a sheath for enveloping the delivery wire, mandrel and occluder. By moving the sheath relative to the occluder in a series of steps, the occluder opens first on a distal side and then on a proximal side, in a manner that holds the occluder in place.

L'invention concerne un système d'alimentation/récupération permettant à un opérateur de déployer et de récupérer un implant médical, comme un occluseur pour obturer un foramen ovale patent (PFO). Dans un mode de réalisation, le système comprend un mandrin d'alimentation destiné à empêcher l'occluseur de bouger dans le sens proximal, un fil d'alimentation pour fixer l'occluseur sur le mandrin d'alimentation et éviter tout mouvement indésirable dans le sens distal, ainsi qu'une gaine pour envelopper le fil d'alimentation, le mandrin et l'occluseur. Le déplacement de la gaine par rapport à l'occluseur en une série d'étapes entraîne l'ouverture de l'occluseur, tout d'abord sur une face distale, puis sur une face proximale, de manière à maintenir l'occluseur en place.

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