Devices, system, and methods for guiding an operative tool...

Details Devices, system, and methods for guiding an operative tool... Devices, system, and methods for guiding an operative tool...

A - Human Necessities

61

F

A61F 11/00 (2006.01)

Patent

CA 2625082

A guide device establishes a guide passage through a guide tube, through which an operative tool can be deployed into an interior body region for use. A steering assembly, in use, deflects or bends the distal end region of the guide tube, so that the operative tool can be placed in a desired orientation with respect to tissue. The steering assembly is desirable configured for single handed operation by the clinician. The steering assembly is also desirably configured to provide a mechanical advantage sufficient to translate relatively small increments of clinician control into relatively larger increments of guide tube deflection. In one arrangement, the steering assembly includes a rack and pinion linkage system. In another arrangement, the steering assembly includes a pivoting lever system.

L'invention concerne un dispositif de guidage établissant un passage de guidage à travers un tube de guidage, à travers lequel un outil fonctionnel peut être déployé dans une région corporelle interne aux fins d'utilisation. Un ensemble de guidage, pendant l'utilisation, fléchit ou plie la région terminale distale du tube de guidage, de manière que l'outil fonctionnel puisse être placé selon une orientation souhaitée par rapport au tissu. L'ensemble de guidage est conçu de manière que le médecin puisse l'utiliser d'une seule main et pour présenter un avantage mécanique suffisant pour traduire des incréments relativement faibles de la commande du médecin en incréments relativement importants de la flexion du tube de guidage. Dans un agencement, l'ensemble de guidage comprend un système de crémaillère. Dans un autre agencement, l'ensemble de guidage comprend un système de levier pivotant.

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