Patent ID: 9585701
Date: 2017-03-07
CPC Classifications: A61B

Claim:
1. A bone anchor to anchor an elongated implant to a patient bone and threadably engage with a closure plug, the bone anchor further to couple with a tool comprising an attachment structure, the bone anchor comprising: an anchoring member comprising a distal portion and a proximal portion opposite the distal portion, the distal portion to attach to the patient bone in an anchoring manner; and a head coupled to the proximal portion of the anchoring member, the head to couple to the elongated implant, the head comprising: a horizontal radiused slot near the proximal end of the head and extending along at least a portion of the outer surface in a direction perpendicular to the longitudinal center axis of the head, the slot to receive the attachment structure when the bone anchor is coupled to the tool; and wherein the horizontal radiused slot comprises a proximal boundary comprising a radially inner extent and a radially outer extent radially outward of the radially inner extent, wherein the radially outer extent is distal the radially inner extent.