PATENT CLAIM ANALYSIS

Application Number: 16040258
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["606", "246000"]

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. A down-loadable compression insert has a lower friction fit collet and an outer receiver press fit surface. A down-loadable retaining ring has at least one inner edge and outer tiered surfaces. The ring cooperates with the shank 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. A uni-planar assembly is included.

Claim (Index 1):
A pivotal bone anchor assembly for securing an elongate rod to a bone via a closure top, the pivotal bone anchor assembly comprising:\n a receiver having a top portion and a base, the top portion with upwardly extending arms defining an open channel for receiving the elongate rod and including a mating structure for mating with the closure top, the base defining a cavity in communication with the open channel and having a lower opening in communication with a bottom surface of the base, a locking region proximate the lower opening, and a capture region above the locking region, the receiver including an internal interference wedging surface between the capture region and the mating structure; a shank having a body for fixation to the bone and an upper portion integral with the body and having an at least partial spherical shape providing pivotal motion of the shank with respect to the receiver; an insert positioned within the receiver prior to the shank upper portion and engageable with the elongate rod when the elongate rod is received within the open channel, the insert being positioned adjacent to the receiver interference wedging surface with the receiver interference wedging surface resisting downward movement of the insert relative to the receiver upon said positioning; and a retainer positionable within the receiver cavity prior to the shank upper portion, the retainer being configured to widen within the receiver cavity capture region as the shank upper portion is uploaded through the receiver lower opening, and then to close back around the shank upper portion to capture the shank within the receiver, the retainer being downwardly displaceable into the receiver cavity locking region after capturing the shank upper portion, wherein after the shank upper portion is captured by the retainer, the insert is downwardly displaceable with a tool into a frictional engagement with the receiver interference wedging surface, with the receiver interference wedging surface resisting upward movement of the insert relative to the receiver upon said frictional engagement, and wherein the shank upper portion includes at least one outwardly facing planar surface configured to limit the pivotable motion of the shank with respect to the receiver to a single plane.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 95.0
- Lexical Diversity: 1.66667
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15893333', '13373289', '15638039', '14872621', '13374439']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8877997879820976
- 35 USC 102 Novelty (BERT): 0.5938190181257439
- Combined Prediction Score: 0.8584017109964622
- Mean Citation Score: 557.97562
- Max Citation Score: 570.5436
- Similarity Product: 514.0898248826265

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