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AssigneeDePuy Synthes Products, Inc.
InventorsFrank Scott Bono, George Joseph Ross, Christopher W. Sicvol, Ian Burgess
Estimating the term…
A spinal anchor assembly for securing a spinal fixation element has an anchor element adapted for attachment to bone. The anchor element has an opening for receiving a spinal fixation element and side walls on opposed sides of the opening with a plurality of inferior surfaces defined on the side walls. A twist-lock closure closes the opening and captures the spinal fixation element. A locking element can be provided on the closure element and the anchor element. The locking element can be configured so that when the closure element is rotated from the open position to the closed position, the locking element engages to deter the closure element from twisting back to the open position.
An anchor assembly for securing a fixation rod, such assembly comprising a spinal anchor assembly having a screw axis and a head member with a slot and an open distal end adapted for passage of a linking element such as a rod or cable therethrough and a cap for closing the open end
An anchor assembly for securing a linkage such as a rod or cable, wherein the anchor assembly comprises
A spinal anchor assembly for securing a linking element such as a fixation rod or cable, wherein the anchor assembly includes a head with an open slot for receiving the linking element, the head being adapted to anchor to bone, and said assembly further includes a cap for closing the head to capture the linking element in the slot, said head and said cap each having respective sets of radially-protruding segments positioned such that the respective sets pass between each other as the cap is moved along an axis of the anchor assembly, and lock against each other as the cap is rotated about said axis through a partial rotation.
19-21. (canceled)
Dependencies are inferred from the claim text.