Fistula grafts having a deflectable graft body portion

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01)

Patent

CA 2690957

This invention provides devices and methods for treating fistulae. In one embodiment, an inventive device includes an elongate graft body (31) having a proximal end (32) and a distal end (33). The graft body is configurable to a first condition and a second condition, the second condition including the distal end deflected laterally relative to its position in the first condition of the body. The device also includes a tether (36), which is connected to the graft body, and is configured to traverse proximally along the body. The tether is manipulable to convert the graft body from the first condition to the second condition. Such a device may also include one or more additional tethers connected to the graft body. For instance, a second tether (38) can be configured to extend distally from the distal end of the graft body, and may be effective in pulling the graft body along a fistula tract (42).

Cette invention porte sur des dispositifs et des procédés pour traiter des fistules. Dans un mode de réalisation, un dispositif inventif comprend un corps de greffe allongé (31) ayant une extrémité proximale (32) et une extrémité distale (33). Le corps de greffe est configurable en une première condition et une seconde condition, la seconde condition comprenant l'extrémité distale déformée latéralement par rapport à sa position dans la première condition du corps. Le dispositif comprend également un câble d'attache (36), qui est relié au corps de greffe, et est configuré pour traverser de façon proximale le long du corps. Le câble d'attache est manipulable pour convertir le corps de greffe de la première condition à la seconde condition. Un tel dispositif peut également comprendre un ou plusieurs câbles d'attache supplémentaires reliés au corps de greffe. Par exemple, un second câble d'attache (38) peut être configuré pour s'étendre de façon distale à partir de l'extrémité distale du corps de greffe, et peut être efficace pour tirer le corps de greffe le long d'un tractus de fistule (42).

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