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US 2014/0236247 A1Published application
Surgical implant system and method
AssigneeWarsaw Orthopedic, Inc.
InventorWilliam Alan Rezach
Life of this patent
Estimating the term…
Abstract
A surgical implant driver includes a member defining an engagement portion including a wall having a circumference and a plurality of lobes disposed thereabout. The lobes are curved toward an interior of the circumference and are connected by a plurality of arcuate portions that are curved toward the interior of the circumference.
Claims20
A surgical implant system comprising:
- a member defining a first longitudinal axis and an engagement portion including a wall having a circumference and a plurality of lobes disposed thereabout, the lobes being curved toward an interior of the circumference and each lobe having a center, the lobes being connected by a plurality of arcuate portions, the arcuate portions being curved toward the interior of the circumference, wherein the centers of each lobe are within the circumference of the wall.
A surgical implant system comprising:
- a member defining a first longitudinal axis and an engagement portion including a wall having a circumference and a plurality of lobes disposed thereabout, the lobes being connected by a plurality of arcuate portions, the lobes being convexly curved between adjacent arcuate portions, the arcuate portions being convexly curved between adjacent lobes, the lobes each having a radius of curvature that is less than a radius of curvature of each of the arcuate portions;
- and
- a socket defining a second longitudinal axis and a drive interface including an inner surface having a circumference and a plurality of lobes disposed thereabout such, the lobes of the engagement portion being configured to engage the lobes of the drive interface, the lobes of the drive interface being connected by a plurality of arcuate portions, the arcuate portions of the engagement portion being configured engage the arcuate portions of the drive interface when the lobes of the engagement portion engage the lobes of the drive interface, the lobes of the drive interface being concavely curved between adjacent arcuate portions of the drive interface, the arcuate portions of the drive interface being concavely curved between adjacent lobes of the drive interface.
A surgical implant system comprising:
- a driver defining a first longitudinal axis and an engagement portion including a wall having a circumference and six convexly curved lobes disposed thereabout each having a semicylindrical configuration, the lobes being connected by six convexly curved arcuate portions, the lobes each have a radius of curvature that is less than a radius of curvature of each of the arcuate portions, the engagement portion having a solid cross section between opposite lobes and opposite arcuate portions;
- and
- a bone fastener extending along a second longitudinal axis between a distal portion configured to penetrate tissue and a proximal portion including a socket defining a drive interface, the drive interface including an inner surface having a circumference and six concavely curved lobes disposed thereabout each having a semicylindrical configuration, the lobes of the engagement portion being configured to engage the lobes of the drive interface, the lobes of the drive interface being connected by six concavely curved arcuate portions, the lobes of the drive interface each have a radius of curvature that is less than a radius of curvature of each of the arcuate portions of the drive interface such that the arcuate portions of the engagement portion engage the arcuate portions of the drive interface when the lobes of the engagement portion engage the lobes of the drive interface,
- wherein the radius of curvature of the lobes of the engagement portion is greater than the radius of curvature of the lobes of the drive interface and the radius of curvature of the arcuate portions of the engagement portion is greater than the radius of curvature of the lobes of the drive interface.
1 more element
Dependencies are inferred from the claim text.