Patent ID: 8170645
Filing Date: 2012-05-01
Classification: A61B

Abstract:
1. An assembly for an image-guided surgical procedure, the assembly comprising: a fiducial marker; a bone screw base, the base including a distal threaded bone screw shaft and a proximal head, the proximal head having a receptacle formed in a proximal end thereof and configured to receive at least a portion of the fiducial marker therein; and a protective sleeve removably fitted around an outer perimeter of the proximal head of the bone screw base, the protective sleeve including a compliant valve in a proximal end thereof that automatically opens upon insertion of an object into the valve and that automatically closes upon removal of the object from within the valve, the protective sleeve having an axial length greater than an axial length of the proximal head such that the proximal end of the protective sleeve extends beyond and is spaced apart from the proximal end of the proximal head when fitted thereto, the protective sleeve covering the receptacle when the compliant valve is in a closed position.