PATENT CLAIM ANALYSIS

Application Number: 16386022
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
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 24):
A spinal screw assembly for securing a fixation rod to a bone via a closure, the spinal screw assembly comprising:\n a screw having a longitudinal axis, a screw head, and an integral anchor portion extending downward from the screw head for fixation to the bone, the screw head having an upper curvilinear surface, a lower curvilinear surface adjacent the anchor portion, and an outer curvilinear surface between the upper curvilinear surface and the lower curvilinear surface having a first helically wound structure formed therein; a body member having a base, a pair of upright arms extending upward from the base to define an open channel for receiving the fixation rod, and an axial bore centered around a longitudinal axis, the axial bore communicating with the open channel and with a bottom of the body member through a lower opening, the axial bore further including a supporting surface defined by a narrowed width for the axial bore disposed about the lower opening, the lower opening extending below the supporting surface and having a second helically wound structure formed therein and mateable with the screw head first helically wound structure, the supporting structure preventing the screw head from exiting the body member through the lower opening; and a bushing positionable within the body member and engageable with the screw head, wherein the screw head lower curvilinear surface is in pivotal engagement with the axial bore supporting surface when the screw is disposed within the body member axial bore, with the anchor portion extending downward through the lower opening, so as to allow variable angular movement of the screw relative to the body member when assembled with the first and second helically wound structures dis-engaged and prior to the assembly being locked via the closure.

Metadata:
- Claim Count in Document: 39.0
- Percentile: 100.0
- Lexical Diversity: 1.93671
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16373054', '14163797', '16372240', '16374500', '12154448']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8807983331243534
- 35 USC 102 Novelty (BERT): 0.5324558890361568
- Combined Prediction Score: 0.8459640887155337
- Mean Citation Score: 431.897466
- Max Citation Score: 443.99286
- Similarity Product: 371.0130389119077

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test