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US 11,298,159 B1Granted
Polyaxial bone plate and locking assembly
AssigneeMeditech Spine, LLC
InventorsEric Flickinger, Robert Bruce Dunaway
Life of this patent
Estimating the term…
Abstract
A bone plate assembly includes a bone plate and a rotatable lock. The bone plate includes a superior surface, an inferior surface, and at least one screw through-hole that is configured to receive a bone screw. The bone plate includes a locking cavity that defined in the superior surface. The locking cavity includes a bottom surface that is recessed relative to the superior surface, and also includes a post that extends upwards from the bottom surface. The rotatable lock is supported on the post such that the rotatable lock is at least partially within the locking cavity.
Claims17
A bone plate assembly comprising:
- a bone plate comprising:
- a superior surface;
- an inferior surface;
- at least one screw through-hole configured to receive a bone screw;
- and
- a locking cavity defined in the superior surface, the locking cavity comprising a bottom surface that is recessed relative to the superior surface, a sidewall surface extending from the bottom surface to the superior surface and defining a perimeter of the locking cavity, and a post extending upwards from the bottom surface, wherein a top of the post opposite from the bottom surface of the locking cavity comprises a recess comprising a bottom recess surface and a side recess surface extending from the bottom recess surface to the top of the post;
- and
- a rotatable lock supported on the post, wherein the rotatable lock is rotatable while supported on the post, wherein the rotatable lock comprises a head section and a shoulder, wherein the head section comprises an outer surface of the rotatable lock, wherein the rotatable lock is supported on the post such that the top of the post is recessed within the rotatable lock relative to the outer surface of the rotatable lock, and wherein the head section of the rotatable lock is outside of the locking cavity and the shoulder of the rotatable lock is within the locking cavity and contacting the bottom surface of the locking cavity, wherein a maximum dimension of the head section is greater than a maximum dimension of the shoulder.
5 more elements
A bone plate assembly comprising:
- a bone plate comprising:
- a superior surface;
- at least one screw through-hole configured to receive a bone screw;
- a blind locking cavity defined in the superior surface, the blind locking cavity comprising a bottom surface and a sidewall surface extending from the bottom surface to the superior surface, wherein the bottom surface is recessed relative to the superior surface;
- and
- a post within the locking cavity, wherein a top of the post opposite from the superior surface of the blind locking cavity comprises a recess comprising a bottom recess surface and a side recess surface extending from the bottom recess surface to the top of the post;
- and
- a lock supported on the post such that the lock is at least partially within the locking cavity, wherein the lock comprises a head section, a shoulder, and a central bore extending through the head section and the shoulder, wherein the head section comprises an outer surface of the lock, wherein the lock is supported on the post such that the post is within the central bore and the top of the post is within the central bore between the outer surface and the shoulder of the lock, and wherein the head section of the lock is outside of the locking cavity and the shoulder of the lock is within the locking cavity and contacting the bottom surface of the locking cavity, wherein a maximum dimension of the head section is greater than a maximum dimension of the shoulder.
5 more elements
A bone plate assembly comprising a bone plate, the bone plate comprising:
- a superior surface;
- an inferior surface;
- at least one screw through-hole configured to receive a bone screw;
- a locking cavity defined in the superior surface, wherein the locking cavity comprises:
- a bottom surface that is recessed relative to the superior surface;
- a sidewall surface extending from the bottom surface to the superior surface and defining a perimeter of the locking cavity;
- a post within the locking cavity, wherein a top of the post opposite from the bottom surface of the locking cavity comprises a recess comprising a bottom recess surface and a side recess surface extending from the bottom recess surface to the top of the post;
- and
- a locking feature extending from the sidewall surface into the locking cavity;
- and
- a rotatable lock supported on the post, wherein the rotatable lock is rotatable while supported on the post, wherein the rotatable lock comprises a head section, a shoulder, and a central bore, wherein the head section comprises an outer surface of the rotatable lock, wherein the rotatable lock is supported on the post such that the top of the post is within the central bore and recessed relative to the outer surface of the rotatable lock, wherein the shoulder is configured to selectively engage the locking feature, and wherein the head section of the rotatable lock is outside of the locking cavity and the shoulder of the rotatable lock is within the locking cavity and contacting the bottom surface of the locking cavity.
8 more elements
Dependencies are inferred from the claim text.