# US 11,896,489 B2 · Lamina plate assembly

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- Number: US 11,896,489 B2
- Document ID: US11896489B2
- Status: Granted
- Kind: B2
- Application number: 16/859,485
- Filed: 2020-04-27
- Published: 2020-08-13
- Granted: 2024-02-13
- Earliest claimed: 2016-03-03
- Assignees: Globus Medical, Inc.
- Applicants: Globus Medical, Inc.
- Inventors: Nick Tacca; Jason Cianfrani
- Web page: https://patentgrep.com/patent/US11896489B2

## CPC

- A61F 2/2846: {Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects (nets or sleeves applied to surface of endoprostheses A61F2/30907; bone plates A61B17/80; bone regeneration in dental surgery A61C8/0006)}
- A61B 17/7035: {Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other}
- A61B 17/7049: {Connectors, not bearing on the vertebrae, for linking longitudinal elements together (A61B17/7055, A61B17/7053, A61B17/7019 take precedence)}
- A61B 17/7053: {with parts attached to bones or to each other by flexible wires, straps, sutures or cables}
- A61B 17/7071: {Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor}
- A61B 17/8023: {Variable length plates adjustable in both directions}
- A61B 17/7023: {with a pivot joint}
- A61B 2017/681: {Alignment, compression, or distraction mechanisms}
- 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

Lamina plate assemblies, systems, and methods thereof. A lamina plate assembly may be configured to provide lamina support following laminectomy, for example, in cervical and lumbar cases. The lamina plate assembly may include a generally elongate body having a first free end, a second free end, and a posterior portion disposed between the first free end and the second free end. Different embodiments of securing portions are used to secure the lamina plate assembly to a vertebra.

## Claims

### Claim 1

A lamina plate assembly comprising:
a first plate member having a first foot, a first intermediate portion and a first hinge portion, the first foot including at least one opening adapted to receive a bone screw; and
a second plate member having a second foot, a second intermediate portion and a second hinge portion, the second foot including at least one opening adapted to receive a bone screw;
the first and second hinge portions in engagement with one another to create a hinge,
at least one screw hole positioned on the first intermediate portion and adapted to receive a bone screw,
wherein the first hinge portion comprises a first cylinder, the first cylinder receives a threaded washer therein and the second hinge portion comprises a second cylinder, the second cylinder receives a pin therein, and
wherein the pin engages with the threaded washer to form a hinge pin.

### Claim 2 (depends on 1)

The lamina plate assembly of claim 1, wherein the first foot is positioned adjacent a first kickstand.

### Claim 3 (depends on 1)

The lamina plate assembly of claim 1, wherein the at least one opening of the first foot includes a pair of openings.

### Claim 4 (depends on 3)

The lamina plate assembly of claim 3, wherein the pair of openings are in series with one another.

### Claim 5 (depends on 1)

The lamina plate assembly of claim 1, wherein the first intermediate portion includes a window that is more elongated than the screw hole and is adapted to receive bone graft material.

### Claim 6 (depends on 1)

The lamina plate assembly of claim 1, further comprising a first removable spacer adapted to be slid onto the first plate member.

### Claim 7 (depends on 6)

The lamina plate assembly of claim 6, wherein the removable spacer includes a pair of sidewalls and a base.

### Claim 8 (depends on 7)

The lamina plate assembly of claim 7, wherein the first intermediate portion includes a window, wherein when the removable spacer is attached to the first plate member its base opposes the window of the first intermediate portion.