Resilient External Fixator Between Two Bone Portions

摘要

The present invention relates to resilient external fixators between first and second bone portions O₁, O₂. The fixator of the invention is essentially characterized by the fact that it comprises a helical spring ( 11 ) having an axis ( 12 ), a body ( 14 ), first means ( 15 ) for mounting the body ( 14 ) to co-operate with the spring ( 11 ) so that the spring is suitable for turning relative to the body about the axis ( 12 ), a pin ( 16 ) of axis ( 17 ) suitable for being fastened on the bone O₁, means ( 19 ) for mounting the pin ( 16 ) to co-operate with the body ( 14 ) so as to pass through the spring ( 11 ), and so that the axis ( 17 ) forms a non-zero angle with the axis ( 12 ), another body ( 22 ), and means ( 24 ) for connecting the body ( 22 ) with the bone O₂ and the spring ( 11 ). The invention is applicable specifically to external fixators for fingers.