Medical lead fixation

Details Medical lead fixation Medical lead fixation

A - Human Necessities

61

N

A61N 1/375 (2006.01)

Patent

CA 2541682

A distal tip coupled to a body of an implantable medical device includes a canted passageway extending distally from a lumen of the body and an opening terminating the passageway and positioned in proximity to a distal end of the distal tip; a helical fixation element coupled to an elongated member extending within the lumen of the body is adapted to deflect along the canted passageway of the distal tip. The elongated member is adapted to move the helical member through the passageway of the distal tip and out from the opening and to rotate the helical element thereby affixing the helical element into an implant site.

Selon l'invention, une pointe distale couplée à un corps d'un dispositif médical implantable comprend un passage incliné s'étendant distalement à partir d'une lumière du corps et une ouverture terminant le passage et se trouvant à proximité d'une extrémité distale de la pointe distale. Un élément de fixation hélicoïde couplé à un élément allongé s'étendant dans la lumière du corps peut dévier le long du passage incliné de la pointe distale. L'élément allongé est conçu pour déplacer l'élément hélicoïde à travers le passage de la pointe distale et à l'extérieur de l'ouverture, et pour faire tourner ledit élément hélicoïde, ce qui permet de fixer ce dernier au niveau d'un site d'implant.

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