Dave's PCF WIP: Paragraphs

Paragraphs

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View Edit Delete	FLO-4	FIG. 5 is a perspective top view of part of an implant assembly 100, according to one embodiment of the present disclosure. FIG. 5 illustrates examples of a rotation limiter 502a, b that includes corresponding surface 122, 124. In one embodiment, a rotation limiter 502 limits rotation of the rotatable structure 112 in either, or both directions, beyond the locked orientation and the unlocked orientation, while allowing rotation of the rotatable structure 112 between the locked orientation and the unlocked orientation. For example, rotation limiter 502a may limit rotation of rotatable structure 112 beyond a locked orientation. Similarly, rotation limiter 502b may limit rotation of rotatable structure 112 beyond an unlocked orientation.	74	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	As shown in FIG. 4B, each of the screws 302 may have a “toe in,” or angulation, within transverse plane (parallel to the page of FIG. 4B) relative to the screw 302 alongside it. This angulation may also be about 12 degrees. This angulation is merely exemplary; in some embodiments, it may range from about -15 degrees to about 45 degrees, or more particularly, from about 0 degrees to about 30 degrees, or yet more particularly, from about 5 degrees to about 20 degrees.	73	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Each of the screws 302 may be pivotable, relative to the bone plate 108, such that the longitudinal axis 400 has a range of motion 420 in all directions of approximately 30 degrees. This range of motion is merely exemplary; in some embodiments, the range of motion may range from about 5 degrees to about 55 degrees, or more particularly, from about 15 degrees to about 45 degrees, or yet more particularly, from about 25 degrees to about 35 degrees.	72	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	FIGS. 4A and 4B depict the implant assembly 100 with four of the screws 302 of FIG. 3A, inserted in a neutral orientation such that each of the screws 302 is at the center of its range of motion relative to the bone plate 108. As shown in FIG. 4A, each of the screws 302 may have a longitudinal axis 400 that extends generally away from the bone plate 108. In the neutral orientation shown, the longitudinal axis 400 may be oriented at about 12 degrees, within a coronal plane (parallel to the page of FIG. 4A) from a normal vector 410 extending from the nearest surface of the bone plate 108. This orientation is merely exemplary; in some embodiments, it may range from about -15 degrees to about 45 degrees, or more particularly, from about 0 degrees to about 30 degrees, or yet more particularly, from about 5 degrees to about 20 degrees.	71	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	The semispherical seat 140 and semispherical rim 222 may cooperate to enable the screw 302 to pivot within the screw opening 106 within a range of motion. For example, the screw 302 may pivot within a range of motion ranging between approximately 45 degrees and approximately -45 degrees and the head feature 107 and lock feature 105 can engage and maintain engagement with each other with the rotatable structure 112 in a locked orientation. FIGs. 3B-3D illustrate examples of a screw 302 in three different orientations within the range of motion. FIG. 3B illustrates a screw 302 having its longitudinal axis oriented approximately 45 degrees from normal relative to the rotatable structure 112. FIG. 3C illustrates a screw 302 having its longitudinal axis oriented approximately 0 degrees from normal relative to the rotatable structure 112. FIG. 3D illustrates a screw 302 having its longitudinal axis oriented approximately -45 degrees from normal relative to the rotatable structure 112.	70	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Thus, the counterclockwise (loosening) rotation of the screw 302 may be limited to, at maximum, an angular displacement equal to half the angular width of the sector occupied by a single raised ridge 216 of the head 210. This amount of counterclockwise rotation of the screw 302 may be sufficient to cause the raised ridges 216 to engage the radial grooves 116, regardless of whether the raised ridges 216 were aligned with the radial grooves 116 as loosening began to occur. Any additional counterclockwise rotation may be blocked, as it would urge clockwise rotation of the rotatable structure 112, which cannot occur due to abutment of the corresponding surface 124 of the arm 114 with the flat surface 122 of the partially circular recess 120, as described above.	69	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 1B is a bottom view of a rotatable structure 112, according to one embodiment of the present disclosure;	12	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	In one embodiment, the present disclosure provides an implant assembly that comprises a cervical plate that is affixed to multiple vertebrae of the spine of a patient using a plurality of screws. Thus, one or more levels of the spine are immobilized. In use, it is advantageous that these screws are prevented from backing out of the cervical plate over time. The present disclosure provides a locking mechanism for this purpose.	26	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	The present disclosure provides an implant assembly that is affixed to one or more bones of a patient using one or more screws. In use, it is advantageous that the screws are prevented from backing out of the bone over time. The present disclosure provides a locking mechanism for this purpose.	25	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 8 is a top view of an implant assembly 800, according to one embodiment of the present disclosure.	20	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 7 is a top view of an implant assembly 700, according to one embodiment of the present disclosure; and	19	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 6 is a perspective top view of an exemplary screw 104 of FIG. 1A, according to one embodiment of the present disclosure;	18	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 5 is a perspective top view of part of an implant assembly 100, according to one embodiment of the present disclosure;	17	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figures 4A and 4B illustrate an implant assembly with four screws 302 inserted, according to one embodiment of the present disclosure;	16	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 3A-D are perspective side views of a rotatable structure 112 and exemplary screw 302, according to one embodiment of the present disclosure;	15	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figures 2A-D are a perspective view, a front elevation view, a front/side elevation section view, and a top view, respectively, of an exemplary screw 104 of FIG. 1A;	14	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 1C is a front view of a rotatable structure 112, according to one embodiment of the present disclosure;	13	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	For example, the implant assembly may have a thin profile for minimally invasive spine (MIS) surgery techniques which can reduce the size of the incisions, soft tissue damage, blood loss, less intrusive implants, post-operative pain, recovery time, risk of surgical complications, and the like. Furthermore, the shape, or profile, of an implant assembly can facilitate insertion of the implant during the surgery. A reliable locking mechanism can provide more stable and secure engagement between the implant and bones or vertebral bodies on either side of a space where the implant is positioned.	27	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Figure 1A is a perspective top view of implant assembly 100, according to one embodiment of the present disclosure;	11	Added by DJM 5 2021	5/1/21, 12:00 AM
View Edit Delete	FLO-4	Implementations may include one or more of the following features. The vertebral implant where the detent mechanism is further adapted to retain the rotatable structure in an unlocked orientation. The niche is defined in a straight section of the rim and where the detent mechanism may include a second ear extending from the rotatable structure and where the second ear is sized to be received in the niche when the rotatable structure is in an unlocked orientation. The pair of opposed arms may include a plurality of radial grooves formed in a bottom surface of the rotatable structure and a corresponding plurality of ridges defined on a head of each screw positioned within each of the pair of screw openings. The pair of opposed arms extend in opposite directions from each other such that the pair of opposed arms engage two screws positioned within the pair of screw openings when the rotatable structure is in the locked orientation. The bone plate further may include a rotation limiter adapted to engage the rotatable structure and limit a degree of rotation of the rotatable structure when the rotatable structure is in the locked orientation. The bone plate may include three pairs of screw openings and the vertebral implant may include three rotatable structures, each rotatable structure positioned in the bone plate and adapted to retain a pair of screws, each screw positioned within a screw opening.	10	Added by DJM 5 2021	5/1/21, 12:00 AM

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