PATENT CLAIM ANALYSIS

Application Number: 16363041
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["606", "266000"]

Abstract:
A cervical polyaxial bone anchor includes a shank having an integral spherical head and a receiver having an upper channel for receiving a rod and a lower seat near a lower opening for receiving a closed retainer that includes a compressible upper portion engaged with the receiver seat and an expandable lower portion capturing the shank head. An outer sleeve slidable with the receiver prohibits expansion of the retainer lower portion during operation. A compression insert engages the retainer upper portion and is in friction fit with the shank head prior to fixing of an angle of the shank with respect to the receiver.

Claim (Index 1):
A receiver assembly of a pivotal bone anchor for securing a rod to a shank head via a closure top, the receiver assembly comprising:\n a receiver having a longitudinal axis, a base defining an internal cavity communicating with a bottom surface of the base through a distal opening, and a pair of integral arms extending upward from the base to define an open channel, the open channel communicating with the internal cavity to define a receiver bore centered about the longitudinal axis, the receiver bore having at an internal recess formed therein; a retainer having an upper portion with a discontinuous circumferentially-extending lateral protrusion, a lower collet portion configured to receive and snap around the shank head uploaded through a lower collet opening, and a retainer bore extending between a retainer top surface and the lower collet opening, the lateral protrusion being resiliently snapped into the receiver bore internal recess with the retainer bore coaxial with the receiver bore; and an inner insert configured for uploading into the retainer through the lower collet opening and upward through the retainer bore to the retainer upper portion prior to uploading the shank head, the inner insert having a top surface engageable with the rod, wherein after the retainer lateral protrusion is captured within the receiver internal recess, the inner insert is downwardly movable within the retainer bore to engage the shank head snapped into the retainer lower collet portion.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 1.91071
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15420803', '14521030', '15663316', '15239515', '15893333']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8806295890955868
- 35 USC 102 Novelty (BERT): 0.5508990249585444
- Combined Prediction Score: 0.8476565326818826
- Mean Citation Score: 442.2879300000001
- Max Citation Score: 471.03317
- Similarity Product: 430.20011462001565

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