# US 10,441,432 B2 · Transforaminal prosthetic spinal disc apparatus

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- Number: US 10,441,432 B2
- Document ID: US10441432B2
- Status: Granted
- Kind: B2
- Application number: 15/880,019
- Filed: 2018-01-25
- Published: 2018-05-31
- Granted: 2019-10-15
- Earliest claimed: 2009-12-07
- Assignees: Globus Medical, Inc.
- Applicants: Globus Medical. Inc.
- Inventors: Noah Hansell; Jeffrey Bennett; David C. Paul
- Web page: https://patentgrep.com/patent/US10441432B2

## CPC

- A61F 2/4425: {made of articulated components}
- A61F 2/30771: {applied in original prostheses, e.g. holes or grooves}
- A61F 2/442: {Intervertebral or spinal discs, e.g. resilient (non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455)}
- 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)}
- A61F 2002/30362: {with possibility of relative movement between the protrusion and the recess}
- A61F 2002/30365: {with additional means for limiting said rotation}
- A61F 2002/30369: {Limited lateral translation of the protrusion within a larger recess}
- A61F 2002/30507: {using a threaded locking member, e.g. a locking screw or a set screw}
- A61F 2002/30594: {slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots}
- A61F 2002/30604: {modular}
- A61F 2002/30616: {Sets comprising a plurality of prosthetic parts of different sizes or orientations}
- A61F 2002/3065: {Details of the ball-shaped head}
- A61F 2002/30654: {Details of the concave socket}
- A61F 2002/30658: {having a central conforming area surrounded by a peripheral annular non-conforming area}
- A61F 2002/30662: {with rotation-limiting means}
- A61F 2002/30884: {Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity}
- A61F 2002/30904: {serrated profile, i.e. saw-toothed}
- A61F 2002/448: {comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants}
- A61F 2220/0025: Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F 2220/0033: made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
- A61F 2310/00023: Titanium or titanium-based alloys, e.g. Ti-Ni alloys
- A61F 2310/00407: Coating made of titanium or of Ti-based alloys
- A61F 2310/00796: Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
- 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)

## Abstract

An intervertebral prosthetic implant having a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having an extension with a concave contact surface, the concave contact surface being spaced apart from the second surface. A second endplate is provided with a first surface configured to substantially engage with a second vertebral body and a second surface comprising a convex contact surface, and the second endplate having a securing element positioned along and above the second surface defining a first and second window on opposing sides of the second surface. The securing element extends along the width and length of the lower endplate and configured with an access hole. An extension portion extends from the first surface of the first endplate through the access hole of the securing element and contacts the second surface of the second endplate.

## Claims

### Claim 1

An intervertebral prosthetic implant comprising:
a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having a concave contact surface and a protrusion; and
a second endplate having a first portion and a second portion, the first portion includes a first surface configured to substantially engage with a second vertebral body and a second surface configured to receive the second portion,
wherein the second endplate is formed by coupling the first portion and the second portion,
wherein a cavity is formed between the first portion and the second portion, and within the cavity there is positioned a first stop and a second stop, wherein the first stop and the second stop include an attaching portion and a washer portion,
wherein the second portion includes a first bore hole and a second bore hole for a receiving a portion of the first stop and a portion of the second stop.

### Claim 2 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the first endplate includes an extension on the first surface.

### Claim 3 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the attaching portion is a cylindrical rod.

### Claim 4 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the attaching portion is configured to attach to the first endplate on a first end and the washer portion on a second end.

### Claim 5 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the washer portion is fixedly attached to the attaching portion after the first and second endplates are fixed to one another.

### Claim 6 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the attaching portion of the first and second stops pass through the first and second bore holes of the second portion of the second endplate.

### Claim 7 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the first endplate and the second endplate are configured to articulate with respect to each other but are limited by the interaction between perimeters of the first and second bore holes and the attaching portions of the first and second stops.

### Claim 8 (depends on 1)

The intervertebral prosthetic implant of claim 1, wherein the first and second bore holes are elliptical.

### Claim 9

An intervertebral prosthetic implant comprising:
a first endplate having a first surface configured to substantially engage with a first vertebral body and a second surface having a concave contact surface and a protrusion; and
a second endplate having a first portion and a second portion, the first portion includes a first surface configured to substantially engage with a second vertebral body and a second surface configured to receive the second portion,
wherein the second endplate is formed by coupling the first portion and the second portion,
wherein a cavity is formed between the first portion and the second portion, and within the cavity there is positioned a first stop and a second stop,
wherein the second portion includes a first bore hole and a second bore hole for a receiving a portion of the first stop and a portion of the second stop, wherein the first stop and the second stop includes an attaching portion and washer portion,
wherein the first endplate and the second endplate articulate with respect to one another.

### Claim 10 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the first endplate includes an extension on the first surface.

### Claim 11 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the attaching portion is a cylindrical rod.

### Claim 12 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the attaching portion is configured to attach to the first endplate on a first end and the washer portion on a second end.

### Claim 13 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the washer portion is fixedly attached to the attaching portion after the first and second endplates are fixed to one another.

### Claim 14 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the attaching portion of the first and second stops pass through the first and second bore holes of the second portion of the second endplate.

### Claim 15 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the first endplate and the second endplate articulated is limited by the interaction between perimeters of the bore holes and the attaching portions of the first and second stops.

### Claim 16 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the first and second bore holes are elliptical.

### Claim 17 (depends on 9)

The intervertebral prosthetic implant of claim 9, wherein the first endplate and the second endplate includes a first keel and a second keel.

### Claim 18 (depends on 17)

The intervertebral prosthetic implant of claim 17, wherein the first keel and the second keel includes windows.
