Endoluminal prosthesis deployment device for use with...

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01) A61F 2/06 (2006.01)

Patent

CA 2234951

An endoluminal prosthesis deployment device (50) includes a hollow plunger (52) which is slide-mounted on a narrow inner catheter (54) and an outer sheath (56) through which the catheter and the plunger are sliding. The distal end of the plunger is provided with a soft retractor bulb (60) and the distal end of the inner catheter is provided with a dilator tip (64). The proximal end of the plunger is provided with a locking mechanism (68) for temporarily locking the relative positions of the plunger and the catheter, and the proximal end of the outer sheath is provided with a locking mechanism (72) for temporarily locking the relative positions of the plunger and outer sheath. The deployment device according to the invention accommodates prostheses of different length by adjusting the distance between the distal end of the plunger and the dilator tip. This distance is adjusted by moving the plunger and/or the catheter relative to each other and locking their relative positions with the locking mechanism on the plunger.

Un appareil (50) de mise en place de prothèses endoluminales comprend un piston creux (52), qui est monté de manière coulissante sur une sonde intérieure étroite (54), et une enveloppe extérieure (56) dans laquelle coulissent la sonde et le piston. L'extrémité distale du piston est pourvue d'un renflement rétractile souple (60), et l'extrémité distale de la sonde intérieure comporte un bout expansible (64). L'extrémité proximale du piston est pourvue d'un mécanisme de verrouillage (68) servant à fixer temporairement les positions relatives du piston et de la sonde, et l'extrémité proximale de l'enveloppe extérieure est pourvue d'un mécanisme de verrouillage (72) servant à fixer temporairement les positions relatives du piston et de l'enveloppe extérieure. L'appareil de mise en place selon l'invention peut recevoir des prothèses de différentes longueurs grâce au réglage de la distance comprise entre l'extrémité distale du piston et le bout expansible. On règle cette distance en déplaçant le piston et la sonde l'un par rapport à l'autre et en fixant leurs positions relatives au moyen du mécanisme de verrouillage monté sur le piston.

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