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 24):
A bone anchor assembly for securing an elongate rod to a bone, the bone anchor assembly comprising:\n a receiver having a vertical axis, a lower body defining an internal cavity communicating with a bottom surface of the receiver through a bottom opening, and a first pair of upright arms extending upwardly from the lower body to define a first channel opening onto a top thereof for receiving the elongate rod, the first channel having a transverse axis perpendicular to the vertical axis and communicating with the internal cavity to define a through bore centered around the vertical axis, the upright arms having interior surfaces with a discontinuous guide and advancement structure formed therein, and with opposed recesses having downwardly-facing top surfaces located entirely below the discontinuous 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 to the receiver; and an insert having a body with a second pair of upright arms centered around a vertical midsection of the body and forming a second channel therebetween, the second channel being alignable with the receiver transverse axis to receive the elongate rod, with uppermost portions of the insert upright arms protruding laterally at the vertical midsection of the insert body and terminating at 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 receiver transverse axis to prevent rotation between the receiver and the insert, wherein top surfaces of the insert opposed radial extensions extend radially outward so as to be underneath a most bottom surface of the elongate rod, and wherein the uppermost top surfaces of the upright arms are snapped under and engaging 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 inhibit the insert from moving back up within the receiver prior to the insert being further pushed down within the receiver into a locked orientation by 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): 0.9011472880401784
- 35 USC 102 Novelty (BERT): 0.6345777764834138
- Combined Prediction Score: 0.8744903368845018
- Mean Citation Score: 573.903722
- Max Citation Score: 641.15515
- Similarity Product: 591.4522595080615

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