PATENT CLAIM ANALYSIS

Application Number: 15969502
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
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 friction fit compression insert (some with lock and release feature), a planar split retaining ring and a 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 and the receiver and insert may include aligned tool receiving apertures for lock and release of the polyaxial mechanism.

Claim (Index 22):
A bone anchor assembly for securing a longitudinal connecting member to a bone, the bone anchor assembly comprising:\n a receiver having a through bore around a central vertical axis, the receiver including a lower body with a bottom opening and an internal cavity communicating with an upper portion having a pair of opposed arms defining a first channel therebetween opening onto a top thereof, the first channel having a transverse axis perpendicular to the central vertical axis, the first channel sized and shaped for receiving a portion of the longitudinal connecting member, the arms having a discontinuous helically wound guide and advancement structure thereon, and the receiving including interior opposed recesses having downwardly-facing top surfaces located entirely below the helically wound guide and advancement structure; a bone attachment structure having a body and an upper head portion having a substantially spherical surface above a hemisphere thereof, the body extending through the receiver bottom opening and pivotal with respect thereto; and an insert having a body with upright arms forming a second channel therebetween, the second channel being alignable with the transverse axis to receive the portion of the longitudinal connecting member therein, the upright arms having uppermost top surfaces, the insert body further including a central through-and-through tool receiving opening and oppositely-directed opposed radial extensions in the direction of the transverse axis to extend a second channel supporting surface for the longitudinal connecting member in the direction of the transverse axis, the opposed radial extensions having top surfaces that extend radially outward and underneath a most bottom surface of the portion of the longitudinal connecting member, the extensions inhibiting rotation of the insert with respect to the receiver, wherein after the bone attachment structure upper head portion is positioned within the internal cavity, the uppermost top surfaces of the upright arms are snapped under the downwardly-facing top surfaces of the receiver opposed recesses to prevent upward movement of the insert when the insert is fully disposed within the receiver first channel, so as to prevent the insert from moving back up within the receiver prior to the assembly being put into a locking position with a closure.

Metadata:
- Claim Count in Document: 68.0
- Percentile: 93.0
- Lexical Diversity: 1.69863
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13374439', '13373289', '15893333', '15638039', '13573304']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8993937771380601
- 35 USC 102 Novelty (BERT): 0.646679286296445
- Combined Prediction Score: 0.8741223280538987
- Mean Citation Score: 573.903722
- Max Citation Score: 641.15515
- Similarity Product: 631.7344905570508

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