A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/16 (2006.01) A61B 17/56 (2006.01)
Patent
CA 2667140
A method is provided to perform an anterior cervical microdiskectomy to remove at least one bone spur on a pair of adjacent vertebrae in a spinal column that includes a posterior longitudinal ligament. Each vertebra contacts a disk positioned therebetween. The disk includes an annulus and a nucleus. The method comprises the steps of removing a portion of the annulus of the disk; removing the nucleus of the disk; removing the vertebral plates with a first burr; removing a portion of the bone spur with a second burr having a spherically shaped abrading head; and, providing a third burr. The third burr comprises an elongate shaft having a distal end and a proximate end; and, a head attached to and extending outwardly from the distal end of the shaft. The head includes a smooth end surface; and, a smooth rounded peripheral edge circumscribing the end surface. The end surface and rounded peripheral edge are shaped and dimensioned to contact rotatably the posterior longitudinal ligament without cutting or puncturing the ligament. The head also includes an abrading surface extending away from the smooth end surface and from the smooth rounded peripheral edge and inwardly toward the shaft. The method also includes the steps of rotating the third burr; contacting the posterior longitudinal ligament with at least a portion of the smooth end surface and the smooth rounded peripheral edge, and, contacting the bone spur with the abrading surface.
Smart & Biggar
White William L.
LandOfFree
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