Spinal Device and Method

• US 20100298938A1
• Filed: 08/02/2010
• Published: 11/25/2010
• Est. Priority Date: 01/09/2004
• Status: Active Grant

• Current Assignee: 3spine Incorporated
• Original Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Inventors: Braddock, Danny H. JR., Humphreys, Steven C., Peterman, Marc M., Hodges, Scott D.
• Granted Patent: US 8,372,150 B2
• Time in Patent Office: Days
• US Class Current: 623/17.11
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61F 2/08 Muscles; Tendons; Ligaments sutures A61B17/04
• CPC Class Codes: A61F 2/30965 Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping
• 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 2002/2817 Bone stimulation by chemical reactions or by osteogenic or biological products for enhancing ossification, e.g. by bone morphogenetic or morphogenic proteins [BMP] or by transforming growth factors [TGF]
• CPC Class Codes: A61F 2002/30331 made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2002/30383 made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
• CPC Class Codes: A61F 2002/30433 using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
• CPC Class Codes: A61F 2002/30462 retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2002/30578 having apertures, e.g. for receiving fixation screws
• CPC Class Codes: A61F 2002/30604 modular
• CPC Class Codes: A61F 2002/30649 Ball-and-socket joints
• CPC Class Codes: A61F 2002/30662 with rotation-limiting means
• CPC Class Codes: A61F 2002/30665 Dual arrangement of two adjacent ball-and-socket joints
• CPC Class Codes: A61F 2002/30685 Means for reducing or preventing the generation of wear particulates
• CPC Class Codes: A61F 2002/3069 Revision endoprostheses
• CPC Class Codes: A61F 2002/30769 madreporic
• CPC Class Codes: A61F 2002/30841 Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
• CPC Class Codes: A61F 2002/30884 Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
• CPC Class Codes: A61F 2002/30906 : shot- sand- or grit-blasted
• CPC Class Codes: A61F 2002/30909 : Nets
• CPC Class Codes: A61F 2002/30925 : etched
• CPC Class Codes: A61F 2002/30929 : having at least two superposed coatings
• CPC Class Codes: A61F 2002/443 : having two transversal endplates and at least one intermediate component
• CPC Class Codes: 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
• CPC Class Codes: A61F 2002/4631 : the prosthesis being specially adapted for being cemented
• CPC Class Codes: A61F 2220/0025 : Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2220/0033 : made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2220/0041 : using additional screws, bolts, dowels or rivets, e.g. connecting screws
• CPC Class Codes: A61F 2220/0075 : sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• 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 2310/00167 : Diamond or diamond-like carbon
• CPC Class Codes: A61F 2310/00203 : containing alumina or aluminium oxide
• CPC Class Codes: A61F 2310/00239 : containing zirconia or zirconium oxide ZrO2
• CPC Class Codes: A61F 2310/00395 : Coating or prosthesis-covering structure made of metals or of 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 2310/00976 : 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 artificial spinal joint, for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra, comprises an anterior joint replacement component sized to extend into an intervertebral disc space between the superior and inferior vertebrae. The anterior joint replacement component includes a left anterior member separated and spaced apart from a right anterior member. The artificial spinal joint further comprises a bridge component coupled at a first end to the anterior joint replacement and sized to extend posteriorly outside the intervertebral disc space. The bridge component includes a left bridge member separated and spaced apart from a right bridge member. The artificial spinal joint further comprises a posterior joint replacement component coupled to a second end of the bridge component. The posterior joint replacement component includes a left posterior member separated and spaced apart from a right posterior member.

Claims

1-61. -61. (canceled)

62. An artificial spinal joint for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprising:

an anterior joint replacement component sized to extend into an intervertebral disc space between the superior and inferior vertebrae, wherein the anterior joint replacement component includes a left anterior member separated and spaced apart from a right anterior member;

a bridge component coupled at a first end to the anterior joint replacement and sized to extend posteriorly outside the intervertebral disc space, wherein the bridge component includes a left bridge member separated and spaced apart from a right bridge member; and

a posterior joint replacement component coupled to a second end of the bridge component, wherein the posterior joint replacement component includes a left posterior member separated and spaced apart from a right posterior member.

63. The artificial spinal joint of claim 62 wherein the posterior joint replacement component includes a connection component sized to receive a bone fastener.

64. The artificial spinal joint of claim 62 wherein left posterior member and the right posterior member each include a connection component sized to receive respective bone fasteners.

65. The artificial spinal joint of claim 62 wherein the bridge component includes a connection component sized to receive a bone fastener.

66. The artificial spinal joint of claim 62 wherein the left bridge member and the right bridge member each include a connection component sized to receive respective bone fasteners.

67. The artificial spinal joint of claim 62 wherein the anterior joint replacement component includes a rostral support component sized to abut a posterior wall of the superior vertebra.

68. The artificial spinal joint of claim 67 wherein the rostral support component includes an aperature sized to receive a bone fastener.

69. The artificial spinal joint of claim 62 wherein at least one of the left or right anterior members includes an anterior socket in movable engagement with an anterior protrusion.

70. A method of implanting an artificial spinal joint, the method comprising:

positioning an anterior joint replacement component within an intervertebral disc space between a superior vertebra and an inferior vertebra, wherein the anterior joint replacement component includes a left anterior member separated and spaced apart from a right anterior member;

positioning a bridge component to extend posteriorly outside the intervertebral disc space, the bridge component coupled at a first end to the anterior joint replacement and wherein the bridge component includes a left bridge member separated and spaced apart from a right bridge member; and

positioning a posterior joint replacement component outside of the intervertebral disc space, the posterior joint replacement component coupled to a second end of the bridge component and wherein the posterior joint replacement component includes a left posterior member separated and spaced apart from a right posterior member.

71. The method of implanting an artificial spinal joint of claim 70, further comprising fastening the posterior joint replacement component to the inferior vertebra.

72. The method of implanting an artificial spinal joint of claim 70, further comprising fastening the bridge component to the inferior vertebra.

73. The method of implanting an artificial spinal joint of claim 70 wherein the step of positioning an anterior joint replacement component includes inserting left and right anterior members through separate openings into the intervertebral disc space.