Flexible cutting tool and methods for its use

Details Flexible cutting tool and methods for its use Flexible cutting tool and methods for its use

A - Human Necessities

61

B

A61B 17/32 (2006.01) A61B 17/16 (2006.01) A61B 17/17 (2006.01) A61B 17/00 (2006.01) A61B 17/22 (2006.01)

Patent

CA 2247955

A cable comprising helically wound superelastic fibers and having a drilling tip provided at its distal end is housed in an elongated holder through which the cable may be advanced, the holder having a distal end for supporting the cable during a drilling operation and through which the distal end of the cable may protrude. The holder includes a cable support shaped to bend the cable through a predetermined angle adjacent its distal end and to support the cable as it is rotated and advanced. A motor is attached to the cable remote from the distal end of the cable to rotate the cable in a direction tending to tighten the cable fibers.

Un câble, comprenant des fibres superélastiques enroulées hélicoïdalement et comportant une pointe de perçage à son extrémité distale, est logé dans un boîtier allongé à travers lequel le câble peut être amené à avancer, ledit boîtier comprenant une extrémité distale qui sert à soutenir le câble pendant l'opération de perçage et à travers laquelle l'extrémité distale du câble peut faire saillie. Le boîtier contient un support de câble conçu pour courber le câble selon un angle prédéterminé à proximité adjacente de son extrémité distale et pour soutenir le câble au fur et à mesure qu'il est amené à tourner et à avancer. Un moteur est relié au câble en un point éloigné de l'extrémité distale du câble, afin de faire tourner le câble dans une direction ayant pour effet de tendre les fibres du câble.

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