PATENT CLAIM ANALYSIS

Application Number: 16411826
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-09
Patent Classification: ["606", "267000"]

Abstract:
A medical implant assembly includes a polyaxial bone anchor having a shank, a receiver, a lower compression insert with planar surfaces for closely receiving an elongate connecting member with planar surfaces and a one-piece closure structure. The connecting member is made from a polymer. The closure structure engages both the connecting member and the insert with the engagement between the closure structure and the insert securely locking the polyaxial mechanism even if the connecting member exhibits creep.

Claim (Index 19):
A pivotal bone anchor assembly for securing an elongate rod to a bone via a closure top, the bone anchor assembly comprising:\n a receiver having a longitudinal axis, a base, and a pair of upstanding arms extending upwardly from the base with opposed inner surfaces defining an upwardly-opening rod-receiving channel extending through outwardly-facing front side and back side surfaces of the receiver and configured to receive the elongate rod, the arm inner surfaces having a closure top mating feature formed thereon, the base including a cavity in communication with the rod-receiving channel and with a bottom surface of the base through a bottom opening to define a receiver bore centered about the longitudinal axis, the receiver bore including at least one downwardly-facing surface formed in an interior surface thereof and a pair of opposed integral structures facing inwardly toward the longitudinal axis between the closure top mating feature and the cavity when the receiver is assembled, the cavity having a spherical seating surface proximate the bottom opening; a shank having a longitudinal axis and a proximal capture portion with a spherical outer surface on a spherically shaped head and an anchor portion extending distally from the capture portion for fixation to the bone, the shank capture portion being positionable within the receiver cavity with the shank anchor portion extending downwardly through the bottom opening, the spherically shaped head having a central internal driving structure formed around the shank longitudinal axis and centered thereon; and a pressure insert having an upper seating surface configured to receive at least an underside portion of the elongate rod, at least one upwardly-facing surface positioned radially outward from the insert seating surface, a central opening for a tool to pass through so as to be engageable with the internal driving structure formed in the shank head, a lower surface configured to engage the shank capture portion spherical outer surface, and an outer side surface having diametrically opposite notches formed therein, the pressure insert being top loaded within the receiver bore into a first position within the receiver bore with the insert seating surface in a non-alignment orientation with respect to the receiver rod-receiving channel, wherein upon rotation of the pressure insert about the receiver longitudinal axis into a second position within the receiver bore, with the insert seating surface in a co-linear alignment with the receiver rod-receiving channel, the at least one insert upwardly-facing surface is configured to be positioned under the receiver bore downwardly-facing surface so as to inhibit the pressure insert from moving back up within the receiver bore, and the insert outer side surface diametrically opposed notches are configured to accept the receiver inwardly facing integral structures so as to prevent further rotation of the pressure insert within the receiver bore.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 100.0
- Lexical Diversity: 1.70833
- Patent Class: 606.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15940343', '15960792', '13507802', '12229207', '12290244']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8889137539284386
- 35 USC 102 Novelty (BERT): 0.609198674865398
- Combined Prediction Score: 0.8609422460221345
- Mean Citation Score: 490.547026
- Max Citation Score: 543.0179
- Similarity Product: 540.5291836142303

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test