Method and apparatus for severing and capturing polyps

Details Method and apparatus for severing and capturing polyps Method and apparatus for severing and capturing polyps

A - Human Necessities

61

B

A61B 17/22 (2006.01) A61B 17/24 (2006.01) A61B 17/3205 (2006.01)

Patent

CA 2217870

An apparatus (10) and a method for managing polyps by which an elongated tubular member (11) generally positionable within a working channel of an endoscopic device. The tubular member (11) carries a selectively extendable severing device (13) and capturing device (14) at its distal end (12). Slide member (17) at the proximal end (16) of the tubular member (11) enables a physician to extend and retract the severing and capturing devices (13, 14). The physician retracts the capturing device (14) to grasp the portion of the polyp to be severed and retracts the severing device (13) to sever the polyp. The capturing device (14) retains the severed portion of the polyp for removal with the tubular member (11). In one of the embodiments the capturing device (14) includes an injection needle (71A).

L'invention porte sur un appareil (10), ainsi que sur le procédé correspondant, servant à traiter des polypes à l'aide d'un élément tubulaire allongé (11) venant généralement se positionner dans le conduit de travail d'un endoscope. L'extrémité distale (12) de l'élément tubulaire (11) est pourvue d'un dispositif de séparation (13) et d'un dispositif d'accrochage (14) extensibles de façon sélective. Un élément coulissant (17) situé sur l'extrémité proximale (16) de l'élément tubulaire (11) permet à un praticien de déployer les dispositifs de séparation et d'accrochage (13, 14) et de les rappeler. Le praticien rappelle le dispositif d'accrochage (14) pour saisir la partie du polype à détacher, et le dispositif de séparation (13) pour détacher le polype. Le dispositif d'accrochage (14) retient la partie détachée du polype qui sera extraite à l'aide de l'élément tubulaire (11). Dans l'un des modes de réalisation, le dispositif d'accrochage (14) comporte une aiguille à injection (71A).

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