PATENT CLAIM ANALYSIS

Application Number: 16393544
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["606", "328000"]

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 1):
A bone anchor assembly for securing a rod to a bone via a closure top, 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 integral 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 rod, the opposed arms having a discontinuous helically wound thread thereon, and the receiver including interior opposed non-threaded recesses having downwardly-facing top surfaces located entirely below the helically wound thread; a bone attachment structure having a body and an integral upper head portion with a substantially spherical surface above a hemisphere thereof, the body extending through the receiver bottom opening and pivotal with respect to the receiver; and an insert having a body with upright arms forming a second channel therebetween, the second channel being alignable with the receiver transverse axis to receive the portion of the rod when the insert is top loaded and positioned within the receiver, the upright arms having uppermost top surfaces, the insert body further including a central through-and-through tool receiving opening and oppositely-directed opposed extensions in the direction of the receiver transverse axis to substantially block rotation between the receiver and the insert, the opposed extensions having top surfaces that extend outwardly in the direction of the receiver transverse axis and underneath a most bottom surface of the portion of the rod, wherein when the uppermost top surfaces of the insert upright arms are snapped under and engaging the downwardly-facing top surfaces of the receiver opposed non-threaded recesses, the bone attachment structure has a non-floppy relationship with respect to the receiver and the insert is prevented from moving back up within the receiver, prior to the rod being positioned within the receiver and the insert first and second channels, respectively, and locked by the closure top.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 100.0
- Lexical Diversity: 1.69863
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13374439', '15969502', '16247378', '13373289', '15893333']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9119993122940688
- 35 USC 102 Novelty (BERT): 0.6882571787773691
- Combined Prediction Score: 0.8896250989423989
- Mean Citation Score: 610.061376
- Max Citation Score: 643.7313
- Similarity Product: 595.6368993655086

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