Method and device for loading a stent

Details Method and device for loading a stent Method and device for loading a stent

A - Human Necessities

61

F

A61F 2/84 (2006.01)

Patent

CA 2317578

A device (10) for loading a self expanding stent (11) into a deployment tool (12) has an outer tube (13) defining a space (14). A method for using the device (10) might include the steps of slipping over the outer tube (13), seating the constricting sheath (15) along the axis and in position over the outer tube (13) and against the rest (18), collapsing the self expanding stent (11) before loading into the space (14) of the outer tube (13) in the funnel (19), carrying the stent (11) on the stent carrying shaft (21) cantilever therefrom, depressing the inserter (20) for movement along the axis and within the constricting sheath (15) towards the space (14) of the outer tube (13), and engaging the stent (11) with the shoulder (22) for urging the expanded stent (11) into the constricting sheath (15) as the inserter (20) moves towards and into the funnel (19).

La présente invention concerne un dispositif (10) qui permet de charger un stent auto-déployant (11) dans un outil de déploiement, et qui comporte un tube extérieur (13) définissant un espace (14). L'un des procédés de mise en oeuvre du dispositif (10) consiste à gainer le tube extérieur (13), à assujettir la gaine de constriction (15) sur la longueur de l'axe et en position par-dessus le tube extérieur (13) et contre le support (18), à comprimer le stent auto-déployant (11) avant de la charger dans l'espace (14) du tube extérieur (13) dans le conduit (19), à appuyer le stent (11) sur le porte-à-faux de l'axe (21) support qui y prend naissance, à appuyer sur l'introducteur (20) en vue d'un déplacement le long de l'axe et à l'intérieur de la gaine de constriction (15) en direction de l'espace (14) du tube extérieur (13), puis à agir sur l'épaulement (22) de façon à forcer le stent déployé (11) dans la gaine de constriction (15) pendant que l'introducteur progresse dans le conduit (19).

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