System and method for maintaining patency of a stent using a...

A - Human Necessities – 61 – F

Patent

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A61F 2/04 (2006.01) A61F 2/94 (2006.01)

Patent

CA 2752905

A system is provided for preventing the accumulation of cumulative matter from clogging a stent, such as a plastic tubular drainage stent for use in the biliary system. The system includes a stent having one or more magnetically reactive objects moveably disposed therein and an actuation device, such as a glove, having one or more magnets thereon. When the actuation device is waived near the one or more magnetically reactive objects of the stent, it actuates them by manually manipulating the one or more magnetically reactive objects of the stent by attracting or repelling them such that they contact the stent walls dislodging cumulative matter attached thereto. As a result of the system, the stent is able to remain resident within the patient for an extended period of time before becoming clogged and needing to be replaced.

L'invention porte sur un système pour empêcher une accumulation de matière capable de boucher un stent, tel qu'un stent de drainage tubulaire en matière plastique destiné à être utilisé dans le système biliaire. Le système comprend un stent ayant ou plusieurs objets magnéto-réactifs disposés de façon déplaçable dans celui-ci et un dispositif d'actionnement, tel qu'un gant, ayant un ou plusieurs aimants sur celui-ci. Lorsque le dispositif d'actionnement est agité près du ou des objets magnéto-réactifs du stent, il les actionne par manipulation manuelle du ou des objets magnéto-réactifs du stent par attraction ou répulsion de ceux-ci de telle sorte qu'ils entrent en contact avec les parois du stent, délogeant la matière accumulée fixée sur celles-ci. Ce système permet que le stent puisse rester à l'intérieur du patient pendant une période de temps prolongée avant de se boucher et de devoir être remplacé.

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