PATENT CLAIM ANALYSIS

Application Number: 16372240
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-07
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 18):
A spinal screw assembly for securing a fixation rod to a bone via a closure, the spinal screw assembly comprising:\n a body member having a base defining an axial bore formed around a longitudinal axis with a lower opening in communication with a bottom of the body member, and a pair of arms extending upward from the base to define an open channel for receiving the fixation rod, the open channel communicating with the axial bore, the axial bore having a proximal closure mating structure, a rounded interior surface disposed about the lower opening, and a non-threaded downward facing surface formed in the axial bore above the lower opening; a screw having a threaded shaft and a head disposed within the body member axial bore with the shaft extending downward through the lower opening, the screw head having an at least partially spherical outer surface supported by the body member rounded interior surface so as to allow variable angular movement of the screw relative to the body member during assembly; and a biasing member disposed within the body member axial bore at least partially between the body member and the screw head, the biasing member being at least partially positioned within and partially overlapped by the non-threaded downward facing surface in the axial bore, the biasing member being in a direct biased engagement with the screw head at least partially spherical outer surface prior to an insertion and securement of the fixation rod with the closure, wherein the direct biased engagement provides a press fitment on the screw head that inhibits the screw and the body member from moving freely with respect to each other prior to the assembly being locked with the closure.

Metadata:
- Claim Count in Document: 80.0
- Percentile: 100.0
- Lexical Diversity: 1.93671
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14163797', '13507857', '12154448', '10848946', '14250685']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.853431343618409
- 35 USC 102 Novelty (BERT): 0.5550110969638856
- Combined Prediction Score: 0.8235893189529566
- Mean Citation Score: 421.1288080000001
- Max Citation Score: 463.47812000000016
- Similarity Product: 440.02057799306885

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