PATENT CLAIM ANALYSIS

Application Number: 16247378
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["606", "305000"]

Abstract:
A polyaxial bone screw assembly includes a threaded shank body having an integral upper portion receivable in an integral receiver, the receiver having an upper channel for receiving a longitudinal connecting member and a lower cavity cooperating with a lower opening. The receiver can have crimp tabs, but is devoid of spring tabs and collet-like flexible structures. A down-loadable compression insert (some with lock and release feature), a down-loadable friction fit split retaining ring and an up-loadable shank upper portion cooperate to provide for pop- or snap-on assembly of the shank with the receiver either prior to or after implantation of the shank into a vertebra. The shank and receiver once assembled cannot be disassembled. The receiver and insert include aligned tool receiving apertures for lock and release of the polyaxial mechanism.

Claim (Index 1):
A pivotal bone anchor assembly for securing an elongate rod to a bone with a closure via closure independent locking with an insert compressing tool, the pivotal bone anchor assembly comprising:\n a receiver having a base defining a cavity communicating with a bottom opening, and a pair of upright arms extending upwardly from the base to define an open channel for receiving the elongate rod, the open channel communicating with the cavity to define a central bore, the pair of upright arms including:\n opposed inward-facing surfaces having a closure-mating structure formed therein; and \n outward-facing surfaces having first tool engagement structures formed therein; \n a bone anchor having a capture portion pivotally disposed within the receiver cavity and an anchor portion extending distally from the capture portion and through the receiver bottom opening for fixation to the bone; and a compression insert at least partially disposed within the receiver center bore and having a top surface configured for engagement with the elongate rod, the insert having a central opening and second tool engagement structures positioned radially outward from the central opening, wherein the insert compressing tool includes a distal end portion in a non-threadable direct engagement with the receiver first tool engagement structures while simultaneously engaging the insert second tool engagement structures so as to apply a downward force to lock a position of the bone anchor with respect to the receiver prior to securing the elongate rod within the receiver open channel via the closure, and wherein the closure is positionable within the channel while the position of the bone anchor with respect to the receiver is so locked by the insert compressing tool.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 99.0
- Lexical Diversity: 1.72289
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15893333', '13373289', '13374439', '15969502', '14872621']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8896223844011322
- 35 USC 102 Novelty (BERT): 0.5998393689251748
- Combined Prediction Score: 0.8606440828535364
- Mean Citation Score: 569.8541499999999
- Max Citation Score: 580.84393
- Similarity Product: 530.6611769585079

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