Patent ID: 9220542
Filing Date: 2015-12-29
Classification: A61B,A61F

Abstract:
1. A polyaxial driver system for inserting and setting the angular orientation of an implant comprising: an elongated component extending along a main axis and comprising an elongated tubular sheath and an elongated shaft disposed within the tubular sheath; a distal component configured to be pivotally connected to a distal end of the elongated shaft and comprising a tubular body extending along said main axis and a spherical head dimensioned to fit and move freely within the tubular body; and wherein a proximal end of the elongated shaft comprises a first set of outer threads and a proximal end of the elongated tubular sheath comprises inner threads shaped and dimensioned to engage the first set of outer threads of the elongated shaft and wherein rotating the elongated tubular sheath clockwise or counter-clockwise moves the elongated shaft forward or backward along the main axis, respectively; wherein the distal end of the elongated shaft comprises a second set of outer threads and wherein said second set of outer threads are shaped and dimensioned to engage inner threads formed in the distal component and wherein rotating the elongated shaft clockwise or counter-clockwise causes said second set of outer threads to engage or disengage the inner threads of the distal component and thereby the elongated shaft engages or disengages the distal component, respectively; wherein the spherical head is configured to move longitudinally along the main axis and to pivot relative to the main axis within the tubular body; and wherein the system further comprises a setscrew having a threaded body and head and wherein the tubular body of the distal component comprises a slot extending along the main axis and having a width smaller the diameter of the setscrew head and larger than the diameter of the setscrew threaded body.