FUSION CAGE WITH REVERSE THREAD PROFILE (RTP)
First Claim
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1. A bone fixation system for stabilizing two skeletal structures relative to one another, the system comprising:
- a fusion cage comprising;
an elongated body having a distal end, a proximal end and a central axis extending therebetween; and
dovetail screw threads extending along the elongated body such that when the elongated body is disposed in the two skeletal structures, the dovetail screw threads inhibit movement of the skeletal structures relative to one another, even when the skeletal structures are subject to forces other than perpendicular compressive forces.
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Abstract
A bone fixation system for stabilizing two skeletal structures relative to one another, the system comprising:
a fusion cage comprising:
- an elongated body having a distal end, a proximal end and a central axis extending therebetween; and
- dovetail screw threads extending along the elongated body such that when the elongated body is disposed in the two skeletal structures, the dovetail screw threads inhibit movement of the skeletal structures relative to one another, even when the skeletal structures are subject to forces other than perpendicular compressive forces.
20 Citations
26 Claims
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1. A bone fixation system for stabilizing two skeletal structures relative to one another, the system comprising:
a fusion cage comprising; an elongated body having a distal end, a proximal end and a central axis extending therebetween; and dovetail screw threads extending along the elongated body such that when the elongated body is disposed in the two skeletal structures, the dovetail screw threads inhibit movement of the skeletal structures relative to one another, even when the skeletal structures are subject to forces other than perpendicular compressive forces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for stabilizing two skeletal structures relative to one another, the method comprising:
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providing a fusion cage comprising; an elongated body having a distal end, a proximal end and a central axis extending therebetween; and dovetail screw threads extending along the elongated body such that when the elongated body is disposed in the two skeletal structures, the dovetail screw threads inhibit movement of the skeletal structures relative to one another, even when the skeletal structures are subject to forces other than perpendicular compressive forces; forming dovetail seats in the two skeletal structures; and positioning the fusion cage in the two skeletal structures such that the dovetail screw threads are disposed in the dovetail seats. - View Dependent Claims (13)
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14. A bone fixation system for stabilizing two skeletal structures relative to one another, the system comprising:
a fusion cage comprising; an elongated body having a distal end, a proximal end and a central axis extending therebetween; and constant pitch, tapered screw threads extending along the elongated body such that when the elongated body is disposed in the two skeletal structures, the constant pitch, tapered screw threads inhibit movement of the skeletal structures relative to one another. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for stabilizing two skeletal structures relative to one another, the method comprising:
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providing a fusion cage comprising; an elongated body having a distal end, a proximal end and a central axis extending therebetween; and constant pitch, tapered screw threads extending along the elongated body such that when the elongated body is disposed in the two skeletal structures, the constant pitch, tapered screw threads inhibit movement of the skeletal structures relative to one another, even when the skeletal structures are subject to forces other than perpendicular compressive forces; forming thread seats in the two skeletal structures; and positioning the fusion cage in the two skeletal structures so that the constant pitch, tapered screw threads are securely disposed in the thread seats. - View Dependent Claims (26)
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Specification