Orthopedic screw insert

摘要

An insert for receiving a bone screw includes an elongate sleeve having opposed proximal and distal ends and a wall defined by an outer peripheral surface configured for engaging bone and an inner peripheral surface configured for receiving a bone screw extended therethrough. At least one elongate slot is formed in the wall of the sleeve for promoting flexure of the insert. A tool for affixing an orthopedic screw insert within bone tissue includes a socket portion configured and adapted to engage a proximal section of an outer peripheral surface of an orthopedic screw insert. A driver extends distally from the socket portion. The driver is configured and adapted to engage a section of an inner peripheral surface of the orthopedic screw insert distal from the socket portion.

主权项

1. An insert for receiving a bone screw comprising:
a) an elongate sleeve having opposed proximal and distal ends and a wall defined by an outer peripheral surface configured for engaging bone and an inner peripheral surface configured for receiving a bone screw extended therethrough; and b) at least one distal elongate slot formed in the wall of the sleeve extending from the distal end of the sleeve and at least one proximal elongate slot formed in the wall of the sleeve extending from the proximal end of the sleeve for promoting flexure of the insert, wherein the inner peripheral surface of the sleeve includes a threaded portion with internal threads configured for threaded engagement with threads of an orthopedic screw, wherein a distal portion of the inner peripheral surface is free of internal threads and has a uniform diameter that matches the minor diameter of the threaded portion to provide an expansion profile wherein the distal end of the sleeve is expanded more than a portion of the sleeve between the proximal and distal ends when an orthopedic screw is received in the sleeve for engaging a distal section of the outer peripheral surface with cancellous bone.