Targeting device for guiding a drill arrangement

摘要

A targeting device for guiding a drill arrangement for forming an arc-shaped bore in an assembly of adjacent bones or bone fragments, comprises a support frame, a pivoting device mounted to the support frame and arranged to receive the drill arrangement and to allow a pivoting movement of the drill arrangement along an arc-shaped path having a predetermined radius of curvature rc around a pivot axis. The support frame is provided with at least three fixation devices each configured to fix a bone or bone fragment of the bone assembly to define a fixed position in space of the bone assembly with respect to the pivoting device when the bone assembly is installed on the support frame.

主权项

1. A targeting device for guiding a drill arrangement for forming an arc-shaped bore in a bone assembly comprising adjacent bones or bone fragments, the targeting device comprising:
a support frame comprising at least three fixators when assembled; a pivoter configured to be mounted to the support frame and to receive the drill arrangement and to allow a pivoting movement of the drill arrangement along an arc-shaped path having a predetermined radius of curvature around a pivot axis when the drill arrangement is received in the pivoter; wherein each of the at least three fixators is configured to fix to a bone or bone fragment of the bone assembly to define a fixed position of the bone assembly in space with respect to the pivoter when a foot comprising the bone assembly is positioned on the support frame; and wherein at least two of the at least three fixators are for fixing to the bone assembly in opposing directions when assembled on the support frame.