PATENT CLAIM ANALYSIS

Application Number: 15897486
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["606", "266000"]

Abstract:
A pivotal bone anchor assembly includes a shank sub-assembly comprising a shank and a coupler, and a receiver sub-assembly comprising a receiver having a bore with a bottom opening and a snap-fit assembly proximate the bottom opening comprising an insert, a retainer ring positioned within an expansion chamber, and a positioner configured to hold the retainer ring in position. The shank sub-assembly is uploaded through the receiver bottom opening such that the positioner is pushed up into a holder chamber and the retainer rings engages a circumferential locking groove of the coupler to secure the shank sub-assembly with the receiver sub-assembly with a snap-fit connection.

Claim (Index 1):
A pivotal bone anchor assembly for securing an elongate rod to a bone, the bone anchor assembly comprising:\n a shank sub-assembly comprising;\n a shank having a shank distal end and a shank proximal end opposite the shank distal end, the proximal end of the shank comprising a spherically shaped shank head and a pair of opposed and spaced apart bores on the shank head; and \n a coupler comprising two symmetrical half ring collet members, each collet member comprising an outer surface with a circumferential locking groove and a rounded inner surface configured to surround the shank head, and a collet lock sleeve configured to press fit the two symmetrical half ring collet members around the shank head such that the coupler and shank head have a friction fit; \n a receiver sub-assembly having a receiver sub-assembly distal end and a receiver sub-assembly proximal end opposite the receiver sub-assembly distal end, the receiver sub-assembly comprising a receiver defining an opening that extends from the receiver sub-assembly proximal end to the receiver sub-assembly distal end and an internal snap-fit assembly comprising an insert, a retainer ring positioned within an expansion chamber of the receiver, and a positioner configured to hold the retainer ring in position, wherein the receiver sub-assembly is configured to couple to the shank sub-assembly via the snap-fit assembly in a bottom-loaded arrangement such that as the shank sub-assembly is at least partially received in the opening through the receiver sub-assembly distal end, the positioner is pushed up into a holding chamber and the retainer ring engages between the expansion chamber of the receiver and the circumferential locking groove on the outer surface of the collet.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 2.0
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15629709', '15521163', '15239515', '15420803', '14674517']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8149018679075212
- 35 USC 102 Novelty (BERT): 0.5801376244007822
- Combined Prediction Score: 0.7914254435568473
- Mean Citation Score: 340.353698
- Max Citation Score: 505.29813
- Similarity Product: 499.2408950741886

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