Patent ID: 7846187

Claim:
A closure plug adapted for use with an open-headed medical implant having a pair of spaced and interiorly threaded arms; said plug comprising: a) a body sized and shaped to be threadedly received between and in the spaced arms of the implant head; said body having a radially outward surface that has a thread thereon that is sized and shaped to threadedly mate with the threaded arms of the implant; b) said body having a top surface and a bottom surface; said top surface of said body having at least one bore therein sized and shaped to receive a removal tool and extending generally axially entirely through said body from the top surface to the bottom surface thereof and opening onto said top surface; wherein: c) said bore is spaced from and positioned between both a central axis of said body and a periphery of said body; and d) a break-off head attached to said body at a neck and being breakable from said body at a preselected torque; said neck being axially aligned with said body; said break-off head being positioned so as to be axially located above said body and at least a portion of said bore; said break-off head being configured to block axial access by the removal tool to said bore until said break-off head breaks from said body.