Active controlled bending in medical devices

Details Active controlled bending in medical devices Active controlled bending in medical devices

A - Human Necessities

61

B

A61B 1/005 (2006.01) A61M 25/01 (2006.01)

Patent

CA 2684705

A flexible endoscope includes a handle and a flexible shaft extending from the handle. The shaft includes a distal portion having a tubular wall defining a central lumen and a least two smaller lumens extending longitudinally through at least a portion of the tubular wall and a pull wire is disposed within one or more of the smaller lumens. The distal portion further includes an articulation layer disposed over the tubular wall and includes a first series of slots, which allow controlled bending of the distal portion by movement of one or more of the pull wires.

La présente invention concerne un endoscope souple qui se compose d'un manche et d'une tige souple partant du manche. La tige comprend une partie distale dotée d'une paroi tubulaire définissant une lumière centrale et au moins deux lumières plus petites s'étendant longitudinalement à travers une partie au moins de la paroi tubulaire, et un fil de traction est disposé dans une ou plusieurs de ces lumières plus petites. La partie distale comporte aussi une couche d'articulation posée sur la paroi tubulaire et comprend une première série de fentes, qui permettent de commander la flexion de la partie distale par le mouvement d'un ou de plusieurs fils de traction.

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