Vascular incisor and method

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01) A61B 17/32 (2006.01) A61B 17/34 (2006.01) A61B 17/11 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2366813

An improved vascular incisor (14) and method for allowing a user to safely create an incision in a body lumen. The present invention provides an apparatus which can create in surrounding body structures, such as the back wall of the ascending aorta. The incisor (14) includes a surgical element such as a blade (40) which is activated by an actuator (42). As the actuator (42) is depressed, the blade (40) is moved from a protected, retracted position to an exposed, deployed position. The exposed blade (40) is pushed into a front wall of the ascending aorta to create an incision. As the actuator (42) is depressed further, the blade (40) is automatically moved to the retracted position to prevent the blade (40) from incising the back wall of the aorta.

Cette invention se rapporte à un inciseur vasculaire (14) amélioré et à son procédé correspondant, qui permettent à l'utilisateur de pratiquer en toute sécurité une incision dans un passage corporel. Cette invention propose un appareil qui permet de pratiquer une incision dans des structures corporelles circonvoisines, telle que la paroi postérieure de l'aorte ascendante. Cet inciseur (14) comprend un élément chirurgical, telle qu'une lame (40), activée par un actuateur (42). Lorsque l'actuateur (42) est abaissé, la lame (40) se déplace depuis une position protégée et repliée jusqu'à une position exposée et déployée. La lame (40) ainsi exposée est poussée dans une paroi antérieure de l'aorte ascendante, afin de pratique l'incision. Lorsque l'actuateur (42) est abaissé encore davantage, la lame (40) se déplace automatiquement dans la position repliée, écartant ainsi tout risque d'incision dans la paroi postérieure de l'aorte.

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