FIXATION DEVICE AND METHOD

• US 20100204795A1
• Filed: 11/12/2009
• Published: 08/12/2010
• Est. Priority Date: 11/12/2008
• Status: Abandoned Application

• Current Assignee: Stout Medical Group, L.P. (Alphatec Holdings Incorporated)
• Original Assignee: Stout Medical Group, L.P. (Alphatec Holdings Incorporated)
• Inventors: GREENHALGH, E. Skott
• Application Number:
  US12/617,526
• Publication Number:
  US 20100204795A1
• Time in Patent Office: Days
• US Class Current: 623/17.160
• CPC Class Codes: A61B 17/7064 Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
• CPC Class Codes: A61F 2/4405 for apophyseal or facet joints, i.e. between adjacent spinous or transverse processes devices implanted between spinous or transverse processes A61B17/7062
• CPC Class Codes: A61F 2/4425 made of articulated components
• CPC Class Codes: 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
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/30062 (bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30387 Dovetail connection
• CPC Class Codes: A61F 2002/30471 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2002/30492 using a locking pin
• CPC Class Codes: A61F 2002/305 Snap connection
• CPC Class Codes: A61F 2002/30515 using a locking wedge or block
• CPC Class Codes: A61F 2002/30522 releasable, e.g. using a releasable ratchet
• CPC Class Codes: A61F 2002/30538 for adjusting angular orientation
• CPC Class Codes: A61F 2002/30579 with mechanically expandable devices, e.g. fixation devices
• CPC Class Codes: A61F 2002/30594 slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
• CPC Class Codes: A61F 2002/30841 Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
• CPC Class Codes: 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
• CPC Class Codes: A61F 2002/4677 using a guide wire
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2220/0025 : Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2220/0091 : connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2230/0086 : Pyramidal, tetrahedral, or wedge-shaped
• CPC Class Codes: A61F 2250/0006 : for adjusting angular orientation
• CPC Class Codes: A61F 2250/0098 : radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2310/00017 : Iron- or Fe-based alloys, e.g. stainless steel
• CPC Class Codes: A61F 2310/00023 : Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: A61F 2310/00029 : Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
• CPC Class Codes: A61F 2310/00101 : Molybdenum or Mo-based alloys
• CPC Class Codes: A61F 2310/00137 : Tungsten or W-based alloys
• CPC Class Codes: A61F 2310/00796 : Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
• CPC Class Codes: A61F 2310/00952 : Coating, pre-coating or prosthesis-covering structure made of bone cement, e.g. pre-applied PMMA cement mantle
• CPC Class Codes: A61F 2310/0097 : Coating or prosthesis-covering structure made of pharmaceutical products, e.g. antibiotics
• CPC Class Codes: A61F 2310/00976 : Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF

Abstract

An implantable orthopedic stability device is disclosed. The device can have a contracted and an expanded configuration. A method of using the device between adjacent facet surfaces for support and/or fixation of either or both of the adjacent vertebrae is also disclosed.

Claims

1. A method of using an orthopedic support device comprising:

positioning an implantable device between a first facet surface of a first vertebra and a second facet surface of a second vertebra, wherein the first vertebra is adjacent to the second vertebra, and wherein the first facet surface is adjacent to the second facet surface; and

expanding the implantable device between the first facet surface and the second facet surface.

2. The method of claim 1, further comprising removing some of the first facet surface.

3. The method of claim 2, further comprising removing some of the second facet surface.

4. The method of claim 1, wherein positioning further comprises inserting a flexible leader between the first facet surface and the second facet surface, and delivering the implantable device on the leader.

5. The method of claim 4, further comprising removing the leader from between the first facet surface and the second facet surface.

6. The method of claim 1, wherein expanding comprises longitudinally compressing the implantable device.

7. A method of using an orthopedic support device comprising:

positioning an implantable device between a first facet surface of a first vertebra and a second facet surface of a second vertebra, wherein the first vertebra is adjacent to the second vertebra, and wherein the first facet surface is adjacent to the second facet surface, and wherein the implantable device has a first plate in contact with the first facet surface and a second plate in contact with the second facet surface; and

fixing the first plate to the position of the second plate.

8. The method of claim 7, wherein fixing comprises inserting a third plate between the first plate and the second plate.

9. The method of claim 7, wherein fixing comprises compressing the first plate and the second plate between the first facet surface and the second facet surface.

10. The method of claim 7, wherein the

11. An implantable orthopedic device having a longitudinal axis comprising:

a first plate,

a second plate, and

a third plate,

wherein the first plate has a first panel and a second panel, and wherein the first panel is extending from a second panel at about a perpendicular angle to the first panel; and

wherein the second plate has a first panel and a second panel, and wherein the first panel is extending from a second panel at about a perpendicular angle to the first panel; and

wherein the third plate is located between the first panel of the first plate and the first panel of the second plate.

12. The device of claim 11, wherein the third plate comprises a first unidirectional engaging feature, and wherein the first unidirectional engaging feature is received by a receiving feature on the first panel of the first plate.

13. The device of claim 12, wherein the third plate comprises a second unidirectional engaging feature, and wherein the second unidirectional engaging feature is received by a receiving feature on the first panel of the second plate.