Apparatus and method for reconstructing ligaments

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/16 (2006.01) A61B 17/17 (2006.01)

Patent

CA 2257398

This invention is an apparatus for removing bone from a femoral notch, which includes a guidewire (50) and a router assembly (55). The router assembly comprises a cutting head (67) fixed to a shaft (70) rotatably disposed in a hole through a body portion (80) of a shield assembly (75). A hood portion (85) of the shield assembly extends from the body portion of the shield assembly, and covers a first portion of the cutting head while leaving exposed a second portion of the cutting head. The guidewire extends through a hole (95) in the shaft, cutting head, and shield assembly hood portion such that the router assembly (55) is movable along the guidewire. The shaft (70) is rotatable in the shield assembly body portion, such that the second portion of the cutting head is engageable with the bone and operative to remove portions of the bone.

Appareil permettant de retirer de l'os d'une échancrure fémorale, cet appareil comprenant un fil de guidage (50) et un ensemble directeur (55). L'ensemble directeur comporte une tête coupante (67) fixée sur un axe (70) disposé de manière à tourner dans un trou à travers une partie corps (80) d'un ensemble enveloppe (75). Une partie semi-ouverte (85) de l'ensemble enveloppe s'étend depuis la partie corps de l'ensemble enveloppe et recouvre une première partie de la tête coupante tout en laissant non recouverte une deuxième partie de la tête coupante. Le fil de guide s'étend à travers un trou (95) prévu dans l'axe, la tête coupante et la partie semi-ouverture de l'ensemble enveloppe, de telle sorte que l'ensemble directeur (55) soit mobile le long du fil de guidage. L'axe (70) peut tourner dans la partie corps de l'ensemble enveloppe, de manière à ce que la deuxième partie de la tête coupante se trouve en contact avec l'os et soit opérationnelle pour enlever des parties de l'os.

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