# US 11,026,802 B2 · Bone plate stabilization system and method for its use

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- Number: US 11,026,802 B2
- Document ID: US11026802B2
- Status: Granted
- Kind: B2
- Application number: 16/990,863
- Filed: 2020-08-11
- Published: 2020-11-26
- Granted: 2021-06-08
- Earliest claimed: 2003-04-21
- Assignees: RSB Spine LLC
- Applicants: RSB Spine LLC
- Inventors: Robert S. Bray, Jr.
- Web page: https://patentgrep.com/patent/US11026802B2

## CPC

- A61F 2/4455: {for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442)}
- A61B 17/86: Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)}
- A61F 2/30771: {applied in original prostheses, e.g. holes or grooves}
- A61F 2/4465: {having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine}
- A61F 2002/2835: {Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material}
- A61F 2002/30056: {differing in radiographic density}
- A61F 2002/302: {toroidal, e.g. rings}
- A61F 2002/30332: {Conically- or frustoconically-shaped protrusion and recess}
- A61F 2002/30433: {using additional screws, bolts, dowels, rivets or washers e.g. connecting screws}
- A61F 2002/30507: {using a threaded locking member, e.g. a locking screw or a set screw}
- A61F 2002/30517: {using a locking plate}
- A61F 2002/30576: {with extending fixation tabs}
- A61F 2002/30578: {having apertures, e.g. for receiving fixation screws}
- A61F 2002/30593: {hollow}
- A61F 2002/30604: {modular}
- A61F 2002/30616: {Sets comprising a plurality of prosthetic parts of different sizes or orientations}
- A61F 2002/30777: {Oblong apertures}
- A61F 2002/30784: {Plurality of holes}
- A61F 2002/30841: {Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes}
- A61F 2002/449: {comprising multiple spinal implants located in different intervertebral spaces or in different vertebrae}
- A61F 2220/0016: with sharp anchoring protrusions, e.g. barbs, pins, spikes
- A61F 2310/00023: Titanium or titanium-based alloys, e.g. Ti-Ni alloys
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A bone stabilization plate system. The bone stabilization plate system includes a base plate configured to fit primarily between an anterior portion of a first bone's lip osteophyte and an anterior portion of a second, adjacent bone's lip osteophyte. The bone stabilization plate system includes a plurality of bone screws configured to fit in respective bone screw holes in the base plate to secure the base plate.

## Claims

### Claim 1

An apparatus, comprising:
a base plate having a top surface, a bottom surface, and first and second ends, the base plate defining a plurality of bone anchor holes that each extend from the top surface toward one of the first and second ends, the plurality of bone anchor holes including a first bone anchor hole extending from the top surface and terminating in a first opening at least partially defined by the first end and a second bone anchor hole extending from the top surface and terminating in a second opening at least partially defined by the first end, the first end including a substantially flat portion extending from the first opening to the second opening; and
a chamber structure configured to be coupled to the base plate, the chamber structure configured to maintain disc space across a bone graft site between adjacent vertebral bones,
the base plate and the chamber structure configured to be implanted between the adjacent vertebral bones with (1) the base plate fitting primarily between anterior portions of the adjacent vertebral bones and (2) the chamber structure extending posteriorly from the base plate,
the base plate, when implanted, configured to bear weight along portions of the first and second ends of the base plate fitted between the anterior portions of the adjacent vertebral bones, while sharing weight with bone graft material placed between the adjacent vertebral bones and in a space at least partially defined by the chamber structure;
the top surface of the base plate is generally (1) flat and (2) of rectangular shape when viewed in an anterior-to-posterior direction.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the base plate, when implanted, does not contact an anterior surface of at least one of the adjacent vertebral bones.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the base plate, when implanted, fits primarily between anterior portions of lip osteophytes of the adjacent vertebral bones.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein all weight-bearing portions of the first and second ends of the base plate are shaped to fit between the anterior portions of the adjacent vertebral bones.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the base plate has a maximum anterior-to-posterior dimension that is less than a maximum anterior-to-posterior dimension of the chamber structure.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein the base plate has a maximum anterior-to-posterior dimension that is less than a lateral dimension of the top surface of the base plate.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the base plate and the chamber structure are formed of different materials.

### Claim 8 (depends on 7)

The apparatus of claim 7, wherein the base plate is formed of a metal or metal alloy.

### Claim 9 (depends on 1)

The apparatus of claim 1, wherein the chamber structure is detachable from the base plate.

### Claim 10 (depends on 1)

The apparatus of claim 1, wherein the base plate and the chamber structure collectively surround the space for receiving the bone graft material.

### Claim 11 (depends on 1)

The apparatus of claim 1, wherein each bone anchor hole from the plurality of bone anchor holes extends from a portion of the top surface of the base plate that is disposed between the adjacent vertebral bones when the base plate is implanted between the adjacent vertebral bones.