PATENT CLAIM ANALYSIS

Application Number: 16454334
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-11
Patent Classification: ["606", "278000"]

Abstract:
A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.

Claim (Index 1):
A pivotal bone anchor assembly for securing a fixation rod to patient bone via a closure, the pivotal bone anchor assembly comprising:\n a screw having a longitudinal axis, a head portion with a partial spherical shape defining a hemisphere plane at a maximum width perpendicular to the screw longitudinal axis, a spherical outer surface having a single common radius extending above and below the hemisphere plane, and a threaded shaft portion extending distally from the head portion for attachment to the bone; a body member having a lower portion defining a bottom opening, an upper portion defining an open first channel for receiving the fixation rod, and an axial bore centered around a longitudinal axis, the axial bore communicating with a bottom of the body member through the bottom opening and extending upwardly through the open first channel to a top of the body member, the axial bore including a non-threaded internal recess between the bottom and the top of the body member, the screw being pivotally retained in the body member; and a bushing member top loaded within the axial bore and having an open second channel for receiving the fixation rod and a pair of laterally protruding resilient tabs, the resilient tabs being at least partially snapped into the body member internal recess so as to align of the second channel with the first channel and to inhibit the screw head portion from moving upward within the axial bore, the bushing member including axially aligned slots configured to engage the screw head portion so as to not extend below the hemisphere plane when the screw longitudinal axis and the body member longitudinal axis are co-aligned.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 100.0
- Lexical Diversity: 1.93671
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16374500', '16452911', '16372240', '16386022', '16373054']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8053097471766479
- 35 USC 102 Novelty (BERT): 0.5634118020568588
- Combined Prediction Score: 0.781119952664669
- Mean Citation Score: 456.059638
- Max Citation Score: 467.78552
- Similarity Product: 460.2524215019225

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test