Patent ID: 8603090

Claim:
An adjustment tool for an external fixator comprising a clamping assembly for fixing it on a rod and holding a bone pin for exerting a compression or distraction on a broken bone fixed by bone pins spanned over such a fracture, wherein the adjustment tool comprises: a fitting element for holding fast a clamping assembly of the external fixator, a positioning clamp for fixing the adjustment tool on a rod of the external fixator near said clamping assembly, and a connecting element attached to the fitting element and the positioning clamp adapted to move the fitting element towards to or away from the positioning clamp, wherein the fitting element comprises a blocking sleeve adapted to push a first uppermost jaw of the clamping assembly of the external fixator in the direction of the longitudinal axis of the clamping assembly to block a second uppermost jaw against an abutment portion of the fitting element and an actuation element within the blocking sleeve to actuate a locking element of the clamping assembly for releasing the rod of the external fixator within the clamping assembly without releasing the bone pin.