# US 8,540,769 B2 · Device for securing an implant to tissue

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- Number: US 8,540,769 B2
- Document ID: US8540769B2
- Status: Granted
- Kind: B2
- Application number: 13/035,732
- Filed: 2011-02-25
- Published: 2011-08-25
- Granted: 2013-09-24
- Earliest claimed: 2007-11-28
- Assignees: Pioneer Surgical Technology, Inc.
- Applicants: Brian P. Janowski; John P. Sullivan
- Inventors: Brian P. Janowski; John P. Sullivan
- Web page: https://patentgrep.com/patent/US8540769B2

## CPC

- A61F 2/4425: {made of articulated components}
- 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 2/4465: {having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine}
- A61F 2/447: {substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section}
- A61F 2/4611: {of spinal prostheses}
- A61B 2017/0256: {for the spine}
- A61F 2002/30112: {Rounded shapes, e.g. with rounded corners}
- A61F 2002/30579: {with mechanically expandable devices, e.g. fixation devices}
- A61F 2002/30593: {hollow}
- A61F 2002/30772: {Apertures or holes, e.g. of circular cross section}
- A61F 2002/30785: {parallel}
- A61F 2002/3082: {Grooves}
- A61F 2002/30841: {Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes}
- A61F 2002/30845: {with cutting edges}
- A61F 2002/30904: {serrated profile, i.e. saw-toothed}
- A61F 2002/4627: {with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument}
- A61F 2002/4628: {with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping}
- A61F 2220/0016: with sharp anchoring protrusions, e.g. barbs, pins, spikes
- A61F 2230/0004: Rounded shapes, e.g. with rounded corners
- 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

An implant device is provided for implantation within an intervertebral space between adjacent vertebrae comprising an implant body, a rotatable portion and a piercing portion configured to pierce the adjacent vertebra.

## Claims

### Claim 1

A spinal implant for being secured between adjacent vertebrae, the spinal implant comprising:
an implant body configured for insertion between adjacent vertebral bodies, the implant body including an upper surface, a lower surface and a cavity between the upper and lower surfaces;
a rotatable portion including a wall having a first top surface, a second bottom surface and substantially parallel side surfaces therebetween, the rotatable portion being configured for rotation between an insertion orientation and an implanted orientation; and
a bone piercing portion of the rotatable portion attached to and extending from one of the side surfaces of the wall and having a leading distal end such that in the insertion orientation the leading distal end is disposed in the cavity and when the rotatable portion is rotated to the implanted orientation, the leading distal end is shifted out of the cavity beyond one of the upper and lower surfaces for penetrating the surface of one of the vertebral bodies.

### Claim 2 (depends on 1)

The spinal implant of claim 1 wherein the bone piercing portion includes an arcuate inner surface and an arcuate outer surface such that the bone piercing portion is generally hook shaped.

### Claim 3 (depends on 1)

The spinal implant of claim 1 wherein the bone piercing portion is coupled to the wall and extends above the first surface and the upper surface when the rotatable portion is in the implanted orientation.

### Claim 4 (depends on 1)

The spinal implant of claim 1 further comprising implant body teeth extending along at least one of the upper and lower surfaces to engage one of the vertebrae.

### Claim 5 (depends on 4)

The spinal implant of claim 4 further comprising gripping portions positioned on the first surface and extending in a substantially coplanar manner with the implant body teeth when the rotatable portion is in the implanted orientation.

### Claim 6 (depends on 1)

The spinal implant of claim 1 further comprising a tool engaging portion configured to rotate the rotatable portion between the insertion orientation and the implanted orientation.

### Claim 7 (depends on 1)

The spinal implant of claim 1 further comprising a securing portion configured to secure the rotatable portion to the implant body, the securing portion including a slotted portion having lower and upper portions with a slot therebetween configured to permit the lower and upper portions to be compressed towards one another as the slotted portion passes through a step in the implant body.