Patent ID: 7618440
Filing Date: 2009-11-17
Classification: A61B

Abstract:
1. A spinal surgical instrument comprising: an outer cannula having a proximal end, distal end and an outer lumen passing there between, the distal end of the outer cannula configured to releasably mount to a securing arrangement for a spinal implant; an inner cannula having a proximal end, a distal end and an inner lumen passing therebetween, the inner cannula being axially moveable within the outer lumen of the outer cannula and including threads on an interior surface of the inner cannula configured to threadably engage a portion of the spinal implant, a fixing member having a proximal end and a distal end, the fixing member positioned within the inner lumen and including an arrangement for advancing and retracting the fixing member within the inner lumen of the inner cannula, wherein the fixing member is threadably engaged with the threads on the interior surface of the inner cannula.