Patent ID: 8467851
Filing Date: 2013-06-18
Classification: A61B

Abstract:
1. A surgical navigation system for use in a surgical procedure on an anatomy including a bone, comprising: a tracking system; a dynamic reference frame tracking sensor operable to be tracked by the tracking system as a dynamic reference frame; a dynamic reference frame positioning member having a substantially non-cylindrical bone engaging portion including at least one arm extending from a central region that is configured to be axially driven into the bone to at least resist rotation of the dynamic reference frame positioning member about a long axis of the dynamic reference frame positioning member; wherein the dynamic reference frame tracking sensor is attached to the dynamic reference frame positioning member; wherein the dynamic reference frame positioning member is operable to engage a bone in the anatomy in a selectively fixed manner at least by being impacted into the bone in the axial direction to hold the dynamic reference frame tracking sensor in a selected position relative to the bone.