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 1):
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 guide and advancement structure formed therein; a body member having a base with a cavity, an upper portion with a channel for receiving the fixation rod, and an axial bore centered around a longitudinal axis, the axial bore communicating with the channel and with a bottom of the base through a lower opening, the cavity having a reduced cross-section adjacent the lower opening to prevent the screw head from exiting the cavity through the lower opening, the lower opening having a second guide and advancement structure formed therein and threadably mateable with the screw head first guide and advancement structure; 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 a surface on the reduced cross-section 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 prior to a locking of the assembly 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): 0.8805200500846976
- 35 USC 102 Novelty (BERT): 0.5337738029843202
- Combined Prediction Score: 0.8458454253746598
- Mean Citation Score: 431.897466
- Max Citation Score: 443.99286
- Similarity Product: 381.50835829992064

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