US20040068320A1 - Prosthetic disc and vertebral body replacement device having pyrolytic carbon bearing members - Google Patents

Prosthetic disc and vertebral body replacement device having pyrolytic carbon bearing members Download PDF

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Publication number
US20040068320A1
US20040068320A1 US10/264,496 US26449602A US2004068320A1 US 20040068320 A1 US20040068320 A1 US 20040068320A1 US 26449602 A US26449602 A US 26449602A US 2004068320 A1 US2004068320 A1 US 2004068320A1
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device according
bearing member
body
surface
bearing
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Abandoned
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US10/264,496
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Bruce Robie
Eric Woodard
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Zimmer Trabecular Metal Tech Inc
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Robie Bruce H.
Eric Woodard
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Priority to US10/264,496 priority Critical patent/US20040068320A1/en
Publication of US20040068320A1 publication Critical patent/US20040068320A1/en
Assigned to ZIMMER TRABECULAR METAL TECHNOLOGY, INC. reassignment ZIMMER TRABECULAR METAL TECHNOLOGY, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: IMPLEX CORPORATION
Application status is Abandoned legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
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    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
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    • A61F2/442Intervertebral or spinal discs, e.g. resilient
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425Intervertebral or spinal discs, e.g. resilient made of articulated components
    • AHUMAN NECESSITIES
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    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30448Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • AHUMAN NECESSITIES
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2002/30934Special articulating surfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
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    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/005Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • AHUMAN NECESSITIES
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00035Other metals or alloys
    • A61F2310/00131Tantalum or Ta-based alloys
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
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    • A61FFILTERS 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
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Abstract

A spinal motion device for implanting in the spine as a replacement for the natural disc, to permit motion between adjacent vertebral bodies or as a vertebral body replacement that permits motion at its ends. The spinal motion device comprises a composite structure formed by a body having at least one bearing member, made from a biocompatible material such as pyrolytic carbon, attached to a support surface thereof.

Description

    FIELD OF THE INVENTION
  • The present invention relates to prosthetic devices. More particularly, the present invention relates to a spinal motion device for implanting in the disc space of the spine or as an artificial bone or bone segment, wherein the device has one or more bearing members made of pyrolytic carbon. [0001]
  • BACKGROUND OF THE INVENTION
  • A large segment of the population have chronic back and neck problems which cause pain and disability. The cause of the pain is often due to irritation of nerves, nerve roots or the spinal cord itself. This irritation can be caused by both chemical and mechanical processes. For example, nuclear material from the disc has been shown to irritate nerve cells. Also, pressure, resulting from contact with adjacent tissue can also be applied directly and induce pain in nerve tissues. A second cause of pain is believed to be degeneration of the disc material that lies between two adjacent vertebrae. Degeneration can result in pain directly, or it can lead to abnormal motions which result in pain. [0002]
  • Surgical techniques have been developed to eliminate the cause of the persistent pain either by clearing space around the nerves, nerve roots or spinal cord (so called decompressions) or by removing the disc and filling the space. The space filler can be a device that prevents motion (fusion) or can be a device that permits motion, preferably in a physiologic way. In some decompressive cases, it is necessary to remove part of the vertebral body and the adjacent discs. [0003]
  • Known prosthetic discs are typically designed to allow for some motion between the adjacent vertebrae. However, these known devices typically require resection of some limited amount of bone so as to obtain fixation. This is problematic for both the cases of true disc degeneration, and for many decompressive cases. In true disc degeneration, the disc is the source of pain and its removal is required, not the bone of the adjacent vertebral bodies. Removal of the bone, through a variety of instruments, can be surgically difficult and typically removes the densest cancellous bone in the vertebral body, thereby weakening the reconstruction. In decompressive cases where a portion of the vertebral body must be removed, the existing prosthetic devices are not designed to fit the void space created by the decompression. Devices that fit the space do not permit motion between the replaced vertebral body and adjacent vertebral bodies. [0004]
  • Accordingly, a spinal motion device is needed which permits either replacement of the disc without bone removal or that permits partial resection of the bone and still restores motion. [0005]
  • SUMMARY OF THE INVENTION
  • In summary, the present invention is a spinal motion device for implanting in the spine as a replacement for the natural disc, to permit motion between the two adjacent vertebral bodies or as a vertebral body replacement that permits motion at its ends. The device comprises a body having opposing first and second surfaces, and at least a first bearing member attached to the first support surface. [0006]
  • In one aspect of the invention, the device further comprises a second bearing member attached to the second surface. [0007]
  • In a further aspect of the invention, one or both of the bearing members are made of pyrolytic carbon. [0008]
  • In another aspect of the present invention, the device can be made in different sizes by changing the distance between the support surfaces to allow the device to function as a disc replacement or as a vertebral body replacement.[0009]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a side elevational view of a motion device according to a first illustrative embodiment of the present invention. [0010]
  • FIG. 2 is a plan view of the motion device of FIG. 1. [0011]
  • FIG. 3 is an anterior end view of the motion device of FIG. 1. [0012]
  • FIGS. [0013] 4A-4C are side elevational views of three different types of mechanical attachment arrangements that may be utilized in the motion device of the present invention.
  • FIG. 5 is a side elevational view of a motion device according to a second illustrative embodiment of the present invention. [0014]
  • FIG. 6 is an anterior end view of the motion device of FIG. 5. [0015]
  • FIG. 7 is an exploded perspective view of a motion device according to a third illustrative embodiment of the present invention. [0016]
  • FIG. 8 is an exploded side elevational view of the motion device of FIG. 7. [0017]
  • FIG. 9 is an exploded anterior elevational view of the motion device of FIG. 7.[0018]
  • The drawings use like numerals to identify like elements. It should be understood that the drawings are for purposes of illustrating the concepts of the invention and are not necessarily to scale. [0019]
  • DETAILED DESCRIPTION OF THE INVENTION
  • FIGS. [0020] 1-3 collectively show a spinal motion device 10 according to an illustrative embodiment of the present invention. The motion device 10 has a composite structure comprised of a porous body 12 and at least a one bearing member 18. The motion device 10 typically has a wedge-shape, side profile that tapers down from an anterior end face 30 toward a posterior end face 32. The embodiment of the device 10 shown in FIGS. 1-3, has a symmetrical taper, however, the device 10 may be also be asymmetrically tapered. The motion device 10 is intended as a replacement for the natural disc, to permit motion between the two adjacent vertebral bodies or as a vertebral body replacement that permits motion at its ends.
  • The body [0021] 12 of the device 10 may symmetrically or asymmetrically taper down from an anterior end 13 toward a posterior end 15. The angle θ1 of this taper may be 6.8 degrees as measured between a first bearing support surface 14 and a second bearing support surface 14′ of the body 12. The first bearing member 18 is attached to the first bearing support surface 14 of the body 12 and, in the embodiment of FIGS. 1-3, a second bearing member 18′ is attached to the second bearing support surface 14′ of the body 12.
  • Alternatively, the porous body [0022] 12 of the motion device 10 may have support surfaces that are generally parallel and bearing members constructed to provide the device with a posteriorly directed taper. In applications relating, for example, to the thoracic spine, the motion device may not to have a posteriorly directed taper or may be constructed such that the device has an anteriorly directed taper.
  • The porous body [0023] 12 is preferably made from a porous material. One example is the porous metal material available under the tradename HEDROCEL® from the Implex Corporation, the assignee herein. This material mimics the microstructure of natural cancellous bone and is described in detail in U.S. Pat. No. 5,282,861 entitled “OPEN CELL TANTALUM STRUCTURES FOR CANCELLOUS BONE IMPLANTS AND CELL AND TISSUE RECEPTORS” issued to R. B. Kaplan, the entire disclosure of which is incorporated herein by reference. This material consists of a three dimensional network of pores which form continuous, uniform channels with no dead ends. The material has a much lower modulus than a pure metallic implant, and has a significantly better pore size and shape distribution than prior art materials. This intricate network of interconnected pores provides optimal permeability and a high surface area to encourage tissue ingrowth, vascularization, and deposition of new bone, while also allowing for the interdigitation of bone cement for those situations that require it.
  • The bearing members [0024] 18, 18′ can be made from a biocompatible material or combination of biocompatible materials. Such materials may include biocompatible metals, metal alloys, ceramics, and polymers. Preferably, the bearing members 18, 18′ are made from a graphite and pyrolytic carbon composite (pyrolytic carbon). Pyrolytic carbon is preferred due to its excellent capabilities to articulate against cartilage (see, for example, “Wear Characteristics Of The Canine Acetabulum Against Different Femoral Prostheses” Cook et al., The Journal Of Bone And Joint Surgery, vol. 71-B, No. 2, pp.189-197, March 1989). Pyrolytic carbon is typically made by machining a graphite substrate to have a geometry similar to, but smaller than, the desired final size of the part. The graphite is then placed in a fluidized or rotating bed reactor. The bed and graphite parts are heated to between 1,200 and 1,500 degrees C. and then a hydrocarbon is introduced in the bed. The hydrocarbon undergoes pyrolysis and pyrolytic carbon is deposited on the substrate. Processes for making pyrolytic carbon are well known in the art. For example, a process for making pyrolytic carbon is described in detail in U.S. Pat. No. 6,410,087.
  • As shown in FIGS. 1 and 2, the body [0025] 12 generally forms the anterior and posterior end faces 30 and 32 of the motion device 10. The posterior end face 32 is planar, and the anterior end face 30 is convexly curved, to substantially match the shape of the anterior portion of the outer edge of the vertebra. The body 12 also forms a planar, first side face 34 and an opposed, planar, second side face 36 that convergingly extend from the anterior end face 30 to the posterior end face 32, such that each of the side faces 34, 36 is disposed at angle θ2 that may be about 15 degrees as measured from imaginary line A, which is parallel to the center line CL of the device 10. The angulation prevents the motion device from moving posteriorly into the spinal cord. Further, when the device 10 is used as a vertebral body replacement, the planar side faces 34, 36 allow the surgeon to easily cut the bone flat using an oscillating saw or osteotome or similar instrument.
  • For cervical replacement applications, the width W of the device [0026] 10 as measured between the junctions of the side faces 34, 36 and the anterior end face 30 may range between about 0.433 inches and about 0.551 inches. The length L of the device 10 as measured between anterior face and the posterior face at the center line CL of the device 10, may range between 0.39 inches and about 0.55 inches. The thickness TD of the device 10 (FIG. 3) as measured at the anterior end face 30, may range between 0.118 inches and 1.50 inches. The convexly curved anterior end face 30 may have a radius R of about 4.33 inches. One of ordinary skill in the art will of course recognize that the device 10 can be constructed in a different shapes and dimensions for other applications.
  • Referring still to FIGS. [0027] 1-3, the bearing members 18, 18′ of the motion device 10 define a pair of spaced apart, bearing surfaces 38, 38′ which extend between the anterior face 30 and the posterior face 32, and between the first side face 34 and the second side face 36. The bearing members 18, 18′ may each have a profile, which when viewed in plan, is substantially identical to the plan profile of the body 12. The bearing surfaces 38, 38′ may convexly curve in an elliptical and/or spherical manner in any one or all of a plurality of directions. In the embodiment shown in FIGS. 1-3, the bearing surfaces 38, 38′ each convexly curves in an elliptical manner from the anterior face 30 to the posterior face 32, and convexly curves in an elliptical manner from the first side face 34 to the second side face 36. One of ordinary skill in the art will of course appreciate that one or both bearing members 18 may be formed with other bearing surface configurations including but not limited to concavely curved bearing surfaces and planar bearing surfaces.
  • Attachment of the bearing members [0028] 18, 18′ to the body 12 can be accomplished using a variety of means. For example, mechanical means in the form of a post and hole press-fit arrangement may be utilized to attach the bearing members 18, 18′ to the body 12. As shown in FIG. 4A, the post and hole arrangement may include at least one hole 16, 16′ provided in each of the support surfaces 14, 14′ of the body 12 and at least one post 21, 21′ extending from each of the body mating surfaces 20, 20′ of the bearing members 18, 18′. The holes 16, 16′ and the posts 21, 21′ may be dimensioned in a manner which creates a press-fit therebetween, thus mechanically retaining the bearing members 18, 18′ to the body 12.
  • Alternatively, as shown in FIG. 4B, the post and hole arrangement may include at least one hole [0029] 22, 22′ in each of the mating surfaces 20, 20′ of the bearing members 18, 18′ and at least one post 17, 17′ extending from each of the support surfaces 14, 14′ of the body 12.
  • In addition, as shown in FIG. 4C, the post and hole arrangement may include at least one hole [0030] 16, 16′ in each of the support surfaces 14, 14′ of the body 12 and at least one post 17, 17′ extending from each of the support surfaces 14, 14′ of the body 12, and at least one hole 22, 22′ in each of the mating surfaces 20, 20′ of the bearing members 18, 18′ and at least one post 21, 21′ extending from each of the mating surfaces 20, 20′ of the bearing members 18, 18′.
  • To further ensure attachment of the bearing members [0031] 18, 18′ to the body 12, a grout in the form of a cement or a resilient polymer may be applied to the support surfaces 14, 14′ of the body 12 and the mating surfaces 20, 20′ of the bearing members 18, 18′. The grout may also be applied to the surfaces of the holes 16, 16′, 22, 22′, and the surfaces of the posts 17, 17′, 21, 21′. Suitable grout materials include polyethylene, polymethylmethacrylate (PMMA), polyurethanes, polycarbonate urethanes, sand resilient polymers such as hydrogels, silicones, urethanes and siloxane-urethanes. When grout is utilized, the holes 16, 16′, 22, 22′, and the posts 17, 17′, 21, 21′ are dimensioned in a manner which create a gap therebetween, the gap being filled by the grout material, thus mechanically retaining the bearing members 18, 18′ to the body 12. One advantage of using a resilient polymer grout between the bearing members 18, 18′ and the body 12 is that it provides a slight cushioning effect between the bearing members 18, 18′ and the body 12, which enables the device 10 to simulate the compliance of the normal disc.
  • FIGS. 5 and 6 collectively show a motion device [0032] 100 according to a second illustrative embodiment of the present invention. In this embodiment, the bearing member denoted by numeral 118 defines a concave bearing surface 138 (the other bearing member 18 is substantially identical to the previous embodiment of FIGS. 1-3 with a convex bearing surface 38). The convex bearing surface 38 and the concave bearing surface 138 both extend between the anterior face 30 and the posterior face 32, and between the first side face 34 and the second side face 36. The convex bearing surface 38 may convexly curve in an elliptical and/or spherical manner as described earlier, and the concave bearing surface 138′ may concavely curve in an elliptical and/or spherical manner. The bearing members 18 and 118 are also preferably made from the earlier described graphite and pyrolytic carbon composite material and may be attached to the porous body 12 using the methods described above.
  • As shown in FIGS. 5 and 6, the convex bearing surface [0033] 38 convexly curves in an elliptical manner from the anterior face 30 to the posterior face 32, and convexly curves in an elliptical manner from the first side face 34 to the second side face 36. The concave bearing surface 138 concavely curves in an elliptical manner from the anterior face 30 to the posterior face 32, and concavely curves in an elliptical manner from the first side face 34 to the second side face 36. As in the first embodiment, because the porous body 12 tapers down from the anterior end 13 toward the posterior end 15, the motion device 100 has a wedge-shape, side profile that tapers down from the anterior face 30 toward the posterior face 32.
  • The motion device [0034] 100 shown in FIGS. 5 and 6 can be used as a prosthetic device to replace the disc in cases where the endplate of one of the vertebral bodies is concave and the other is convex. Additionally, as a vertebral body replacement, the motion device shown in FIGS. 5 and 6 can be used in combination with the motion device shown in FIGS. 1-3 to replace two vertebral bodies, and to permit pyrolytic carbon on pyrolytic carbon articulation between the two vertebral body replacement devices.
  • FIGS. [0035] 7-9 collectively show a motion device 200 according to a third illustrative embodiment of the present invention. This motion device 200 is intended for use in the lumbar spine as a disc replacement. The porous body 210 of motion device 200 may be configured with a short axis As that extends in an anterior-posterior direction, and a long axis AL that extends perpendicular to the short axis AS. The body 210 may symmetrically or asymmetrically taper down from the anterior end 212 toward the posterior end 213. A single bearing member 220, preferably made from the earlier described graphite and pyrolytic carbon composite material, attaches to bearing support surface 214 of the body 212 as described previously. The bearing member 220 may have a profile, which when viewed in plan, is substantially identical to the plan profile of the body 210. The bearing member 220 further includes a bearing surface 224 that may convexly curve in an elliptical and/or spherical manner in any one or all of a plurality of directions. One of ordinary skill in the art will of course appreciate that the bearing member 220 may be formed with other bearing surface configurations including but not limited to concavely curved bearing surfaces and planar bearing surfaces.
  • Still referring to FIGS. [0036] 7-9, the bearing support surface 214 and opposing surface 215 of the body 212 are separated by convexly curved side surfaces 216, 217, which extend between truncated posterior end face 218 and convex anterior end face 219. The convexly curved shape of the side faces 216, 217 and anterior end face 219 mimic the overall of the vertebral bodies. One or more apertures 222 are provided in the anterior convex end face 219 for enabling the device 200 to be inserted in the lumbar spine with a conventional insertion instrument (not shown).
  • While the foregoing invention has been described with reference to the above embodiments, various modifications and changes can be made without departing from the spirit of the invention. Accordingly, all such modifications and changes are considered to be within the scope of the appended claims. [0037]

Claims (24)

What is claimed is:
1. A spinal motion device comprising:
a body having opposing first and second surfaces; and
at least a first bearing member attached to the first surface.
2. The device of claim 1, wherein the body is porous.
3. The device according to claim 1, wherein the at least first bearing member is made from pyrolytic carbon.
4. The device of claim 1, wherein the support surfaces are separated by side surfaces which extend between a posterior end of the body and an anterior end of the body.
5. The device according to claim 1, wherein the support surfaces taper posteriorly such that the body has a thickness that decreases from the anterior end to the posterior end.
6. The device according to claim 1, wherein the at least first bearing member defines a convex bearing surface.
7. The device according to claim 1, wherein the at least first bearing member defines a bearing surface that convexly curves in an elliptical manner.
8. The device according to claim 1, further comprising a second bearing member attached to the second surface.
9. The device according to claim 8, wherein the bearing members are made from pyrolytic carbon.
10. The device according to claim 8, wherein the first bearing member defines a convex bearing surface.
11. The device according to claim 10, wherein the second bearing member defines a concave bearing surface.
12. The device according to claim 1, further comprising a post and hole arrangement associated with the at least first bearing member and the body for attaching the bearing member to the first surface of the body.
13. The device according to claim 12, further comprising a grout for aiding the post and hole arrangement in attaching the at least first bearing member to the first surface of the body.
14. The device according to claim 13, wherein the grout comprises one of a cement and a polymer.
15. The device according to claim 14, wherein the polymer is selected from the group consisting of polyethylene, urethane, silicone, siloxane-urethane, polyurethane, polycarbonate urethane, and hydrogel.
16. The device according to claim 14, wherein the polymer is resilient.
17. The device according to claim 1, further comprising a grout for attaching the at least first bearing member to the first surface of the body.
18. The device according to claim 17, wherein the grout comprises one of a cement and a polymer.
19. The device according to claim 18, wherein the polymer is selected from the group consisting of polyethylene, urethane, silicone, siloxane-urethane, polyurethane, polycarbonate urethane, and hydrogel.
20. The device according to claim 18, wherein the polymer is resilient.
21. The device according to claim 1, wherein the device is useable as a disc replacement or as a vertebral body replacement.
22. The device according to claim 1, wherein the at least first bearing member defines a concave bearing surface.
23. A spinal motion device for implanting in a spine, the device comprising:
a porous body having opposing first and second surfaces;
a first bearing member made from a biocompatible material selected from the group consisting of biocompatible metals, metal alloys, ceramics, polymers, pyrolytic carbon and combinations thereof; and
attaching means for attaching the first bearing member to the first surface.
24. The device according to claim 23, further comprising:
a second bearing member made from a biocompatible material selected from the group consisting of biocompatible metals, metal alloys, ceramics, polymers, pyrolytic carbon, and combinations thereof; and
attaching means for attaching the second bearing member to the second surface.
US10/264,496 2002-10-04 2002-10-04 Prosthetic disc and vertebral body replacement device having pyrolytic carbon bearing members Abandoned US20040068320A1 (en)

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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040024462A1 (en) * 2002-04-12 2004-02-05 Ferree Bret A. Spacerless artificial disc replacements
US20040073311A1 (en) * 2002-04-23 2004-04-15 Ferree Bret A. Two-component artificial disc replacements
US20040176773A1 (en) * 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
US20040204762A1 (en) * 2001-10-01 2004-10-14 Ralph James D. Intervertebral spacer device utilizing a spirally slotted belleville washer having radially spaced concentric grooves
US20050149188A1 (en) * 2002-02-07 2005-07-07 Cook Stephen D. Anterior spinal implant
WO2005072658A2 (en) * 2004-02-02 2005-08-11 Cervitech, Inc. Cervical prosthesis and instruments
US20060142860A1 (en) * 2003-04-04 2006-06-29 Theken Disc, Llc Artificial disc prosthesis
US20060235523A1 (en) * 2005-04-19 2006-10-19 Sdgi Holdings, Inc. Implant having a sheath with a motion-limiting attribute
WO2007106760A1 (en) * 2006-03-14 2007-09-20 Warsaw Orthopedic, Inc. Intervertebral prosthetic disc with improved wear resistance
US20070233246A1 (en) * 2006-03-31 2007-10-04 Sdgi Holdings, Inc. Spinal implants with improved mechanical response
EP1842510A1 (en) * 2006-04-06 2007-10-10 AESCULAP AG & Co. KG Intervertebral implant
WO2007130278A2 (en) * 2006-05-03 2007-11-15 Kevin Jon Lawson Modular disc for spinal arthroplasty through a small posterior exposure with intradiscalor intervertebral assembly in-situ
US20070270970A1 (en) * 2006-03-14 2007-11-22 Sdgi Holdings, Inc. Spinal implants with improved wear resistance
US20080021462A1 (en) * 2006-07-24 2008-01-24 Warsaw Orthopedic Inc. Spinal stabilization implants
US20080021557A1 (en) * 2006-07-24 2008-01-24 Warsaw Orthopedic, Inc. Spinal motion-preserving implants
US20080200985A1 (en) * 2007-02-19 2008-08-21 Zimmer Spine, Inc. Spinal implant
US20090192614A1 (en) * 2008-01-25 2009-07-30 Aesculap Ag Intervertebral implant
US20090287309A1 (en) * 2007-01-30 2009-11-19 Tornier Sas Intra-articular joint replacement
US7662182B2 (en) 2003-03-06 2010-02-16 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US7771477B2 (en) 2001-10-01 2010-08-10 Spinecore, Inc. Intervertebral spacer device utilizing a belleville washer having radially spaced concentric grooves
US20110015740A1 (en) * 2009-07-14 2011-01-20 Biomet Manufacturing Corp. Pyrocarbon Orthopedic Implant
US20110035006A1 (en) * 2009-08-07 2011-02-10 Ebi, Llc Toroid-Shaped Spinal Disc
US20110035010A1 (en) * 2009-08-07 2011-02-10 Ebi, Llc Toroid-shaped spinal disc
US8021428B2 (en) 2004-06-30 2011-09-20 Depuy Spine, Inc. Ceramic disc prosthesis
US8029568B2 (en) 2001-10-18 2011-10-04 Spinecore, Inc. Intervertebral spacer device having a slotted partial circular domed arch strip spring
WO2012024266A1 (en) * 2010-08-18 2012-02-23 Ascension Orthopedics, Inc. Pyrocarbon coated bone implants
US8357167B2 (en) 2001-07-16 2013-01-22 Spinecore, Inc. Artificial intervertebral disc trials with baseplates having inward tool engagement holes
US8366772B2 (en) 2002-04-23 2013-02-05 Spinecore, Inc. Artificial disc replacements with natural kinematics
US8864834B2 (en) 2007-01-30 2014-10-21 Tornier Sas Method and apparatus for fitting a shoulder prosthesis
AT14375U1 (en) * 2014-02-12 2015-10-15 Ho Med Handelsgesellschaft M B H Implant for insertion between vertebral bodies of the spine
US9408652B2 (en) 2010-04-27 2016-08-09 Tornier Sas Intra-articular joint replacement and method
US20160331545A1 (en) * 2013-02-11 2016-11-17 Brian D. Burkinshaw Unitary spinal disc implant
EP3162324A1 (en) * 2015-10-26 2017-05-03 K2M, Inc. Cervical disc and instrumentation
US10251755B2 (en) 2014-09-24 2019-04-09 Tornier Sas Method and apparatus for fitting a shoulder prosthesis

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2858546B1 (en) * 2003-08-04 2006-04-28 Spine Next Sa Prothese of intervertebral disc
US20060189443A1 (en) * 2005-01-13 2006-08-24 Finlinson Brook A Trampoline slide and convertible slide assembly
US9149345B2 (en) 2007-08-30 2015-10-06 Zimmer Dental, Inc. Multiple root implant
CA2609390A1 (en) * 2005-05-26 2006-11-30 Zimmer Dental, Inc. Prosthetic dental device
US8814567B2 (en) 2005-05-26 2014-08-26 Zimmer Dental, Inc. Dental implant prosthetic device with improved osseointegration and esthetic features
US8562346B2 (en) * 2005-08-30 2013-10-22 Zimmer Dental, Inc. Dental implant for a jaw with reduced bone volume and improved osseointegration features
JP5438967B2 (en) 2005-08-30 2014-03-12 ジマー デンタル, インコーポレイテッド Dental implant having the features of the improved osseointegration
US20070154514A1 (en) * 2005-12-30 2007-07-05 Demakas John J Therapeutic Structures
US8758441B2 (en) * 2007-10-22 2014-06-24 Spinalmotion, Inc. Vertebral body replacement and method for spanning a space formed upon removal of a vertebral body
US20090138092A1 (en) * 2007-11-28 2009-05-28 Johnston Brent W Therapeutic Structures for Utilization in Temporomandibular Joint Replacement Systems
US8231387B2 (en) 2008-07-02 2012-07-31 Zimmer, Inc. Porous implant with non-porous threads
US9095396B2 (en) 2008-07-02 2015-08-04 Zimmer Dental, Inc. Porous implant with non-porous threads
US8562348B2 (en) 2008-07-02 2013-10-22 Zimmer Dental, Inc. Modular implant with secured porous portion
US8899982B2 (en) 2008-07-02 2014-12-02 Zimmer Dental, Inc. Implant with structure for securing a porous portion
GB0813659D0 (en) 2008-07-25 2008-09-03 Smith & Nephew Fracture putty
US20100114314A1 (en) 2008-11-06 2010-05-06 Matthew Lomicka Expandable bone implant
US9707058B2 (en) 2009-07-10 2017-07-18 Zimmer Dental, Inc. Patient-specific implants with improved osseointegration
US8602782B2 (en) 2009-11-24 2013-12-10 Zimmer Dental, Inc. Porous implant device with improved core
US8353964B2 (en) * 2010-11-04 2013-01-15 Carpenter Clyde T Anatomic total disc replacement
US9381048B2 (en) * 2011-08-31 2016-07-05 DePuy Synthes Products, Inc. Devices and methods for cervical lateral fixation
US20130261746A1 (en) * 2012-03-28 2013-10-03 Linares Medical Devices, Llc Implantable inter-vertebral disk having upper and lower layers of a metal exhibiting bone fusing characteristics and which sandwich therebetween a soft plastic cushioning disc for providing dynamic properties mimicking that of a natural inter-vertebral disc
US9968460B2 (en) 2013-03-15 2018-05-15 Medsmart Innovation Inc. Dynamic spinal segment replacement
US20160270931A1 (en) * 2015-03-19 2016-09-22 Warsaw Orthopedic, Inc. Spinal implant system and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282861A (en) * 1992-03-11 1994-02-01 Ultramet Open cell tantalum structures for cancellous bone implants and cell and tissue receptors
US5683464A (en) * 1992-05-04 1997-11-04 Sulzer Calcitek Inc. Spinal disk implantation kit
US5899939A (en) * 1998-01-21 1999-05-04 Osteotech, Inc. Bone-derived implant for load-supporting applications
US6410087B1 (en) * 1999-11-01 2002-06-25 Medical Carbon Research Institute, Llc Deposition of pyrocarbon
US6554863B2 (en) * 1998-08-03 2003-04-29 Synthes Intervertebral allograft spacer
US6607558B2 (en) * 2001-07-03 2003-08-19 Axiomed Spine Corporation Artificial disc
US6626945B2 (en) * 2000-03-14 2003-09-30 Chondrosite, Llc Cartilage repair plug
US20030220691A1 (en) * 2002-05-23 2003-11-27 Pioneer Laboratories, Inc. Artificial intervertebral disc device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685059A (en) * 1970-07-28 1972-08-22 Gulf General Atomic Inc Prosthetic blood circulation device having a pyrolytic carbon coated blood contacting surface
US3707006A (en) * 1970-08-26 1972-12-26 Gulf Oil Corp Orthopedic device for repair or replacement of bone
US3971134A (en) * 1975-01-31 1976-07-27 General Atomic Company Carbon dental implant with artificial periodontal ligament
US4166292A (en) * 1977-09-08 1979-09-04 Carbomedics, Inc. Stress reinforced artificial joint prostheses
US5084151A (en) * 1985-11-26 1992-01-28 Sorin Biomedica S.P.A. Method and apparatus for forming prosthetic device having a biocompatible carbon film thereon
US5133845A (en) * 1986-12-12 1992-07-28 Sorin Biomedica, S.P.A. Method for making prosthesis of polymeric material coated with biocompatible carbon
CA1318469C (en) * 1989-02-15 1993-06-01 Acromed Corporation Artificial disc
US5477864A (en) * 1989-12-21 1995-12-26 Smith & Nephew Richards, Inc. Cardiovascular guidewire of enhanced biocompatibility
US5522886A (en) * 1994-07-29 1996-06-04 Milo; Simcha Heart valve prostheses
US6290726B1 (en) * 2000-01-30 2001-09-18 Diamicron, Inc. Prosthetic hip joint having sintered polycrystalline diamond compact articulation surfaces
US5782919A (en) * 1995-03-27 1998-07-21 Sdgi Holdings, Inc. Interbody fusion device and method for restoration of normal spinal anatomy
US5645605A (en) * 1995-09-18 1997-07-08 Ascension Orthopedics, Inc. Implant device to replace the carpometacarpal joint of the human thumb
US5861041A (en) * 1997-04-07 1999-01-19 Arthit Sitiso Intervertebral disk prosthesis and method of making the same
US6183517B1 (en) * 1998-12-16 2001-02-06 Loubert Suddaby Expandable intervertebral fusion implant and applicator
US20070233272A1 (en) * 1999-02-23 2007-10-04 Boyce Todd M Shaped load-bearing osteoimplant and methods of making same
US6419705B1 (en) * 1999-06-23 2002-07-16 Sulzer Spine-Tech Inc. Expandable fusion device and method
US6726718B1 (en) * 1999-12-13 2004-04-27 St. Jude Medical, Inc. Medical articles prepared for cell adhesion
US6569201B2 (en) * 2001-09-28 2003-05-27 Depuy Acromed, Inc. Hybrid composite interbody fusion device
US6726720B2 (en) * 2002-03-27 2004-04-27 Depuy Spine, Inc. Modular disc prosthesis
US7250060B2 (en) * 2004-01-27 2007-07-31 Sdgi Holdings, Inc. Hybrid intervertebral disc system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282861A (en) * 1992-03-11 1994-02-01 Ultramet Open cell tantalum structures for cancellous bone implants and cell and tissue receptors
US5683464A (en) * 1992-05-04 1997-11-04 Sulzer Calcitek Inc. Spinal disk implantation kit
US5899939A (en) * 1998-01-21 1999-05-04 Osteotech, Inc. Bone-derived implant for load-supporting applications
US6554863B2 (en) * 1998-08-03 2003-04-29 Synthes Intervertebral allograft spacer
US6410087B1 (en) * 1999-11-01 2002-06-25 Medical Carbon Research Institute, Llc Deposition of pyrocarbon
US6626945B2 (en) * 2000-03-14 2003-09-30 Chondrosite, Llc Cartilage repair plug
US6607558B2 (en) * 2001-07-03 2003-08-19 Axiomed Spine Corporation Artificial disc
US20030220691A1 (en) * 2002-05-23 2003-11-27 Pioneer Laboratories, Inc. Artificial intervertebral disc device

Cited By (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8357167B2 (en) 2001-07-16 2013-01-22 Spinecore, Inc. Artificial intervertebral disc trials with baseplates having inward tool engagement holes
US8092539B2 (en) 2001-10-01 2012-01-10 Spinecore, Inc. Intervertebral spacer device having a belleville washer with concentric grooves
US7771477B2 (en) 2001-10-01 2010-08-10 Spinecore, Inc. Intervertebral spacer device utilizing a belleville washer having radially spaced concentric grooves
US7713302B2 (en) 2001-10-01 2010-05-11 Spinecore, Inc. Intervertebral spacer device utilizing a spirally slotted belleville washer having radially spaced concentric grooves
US20040204762A1 (en) * 2001-10-01 2004-10-14 Ralph James D. Intervertebral spacer device utilizing a spirally slotted belleville washer having radially spaced concentric grooves
US8029568B2 (en) 2001-10-18 2011-10-04 Spinecore, Inc. Intervertebral spacer device having a slotted partial circular domed arch strip spring
US20050149188A1 (en) * 2002-02-07 2005-07-07 Cook Stephen D. Anterior spinal implant
US8277507B2 (en) 2002-04-12 2012-10-02 Spinecore, Inc. Spacerless artificial disc replacements
US8801789B2 (en) 2002-04-12 2014-08-12 Spinecore, Inc. Two-component artificial disc replacements
US9198773B2 (en) 2002-04-12 2015-12-01 Spinecore, Inc. Spacerless artificial disc replacements
US8679182B2 (en) 2002-04-12 2014-03-25 Spinecore, Inc. Spacerless artificial disc replacements
US20040024462A1 (en) * 2002-04-12 2004-02-05 Ferree Bret A. Spacerless artificial disc replacements
US8470041B2 (en) 2002-04-12 2013-06-25 Spinecore, Inc. Two-component artificial disc replacements
US20080027548A9 (en) * 2002-04-12 2008-01-31 Ferree Bret A Spacerless artificial disc replacements
US8784492B2 (en) 2002-04-23 2014-07-22 Spinecore, Inc. Artificial disc replacements with natural kinematics
US20040073311A1 (en) * 2002-04-23 2004-04-15 Ferree Bret A. Two-component artificial disc replacements
US8366772B2 (en) 2002-04-23 2013-02-05 Spinecore, Inc. Artificial disc replacements with natural kinematics
US9572679B2 (en) 2002-04-23 2017-02-21 Spinecore, Inc. Artificial disc replacements with natural kinematics
US9168146B2 (en) 2002-04-23 2015-10-27 Spinecore, Inc. Artificial disc replacements with natural kinematics
US9877841B2 (en) 2002-04-23 2018-01-30 Spinecore, Inc. Artificial disc replacements with natural kinematics
US8038713B2 (en) 2002-04-23 2011-10-18 Spinecore, Inc. Two-component artificial disc replacements
US20040176777A1 (en) * 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
US8961608B2 (en) 2003-03-06 2015-02-24 Spinecore, Inc. Intervertebral disc replacement
US8936640B2 (en) 2003-03-06 2015-01-20 Spinecore, Inc. Cervical disc replacement
US9603716B2 (en) 2003-03-06 2017-03-28 Spinecore, Inc. Intervertebral disc replacement
US20040176773A1 (en) * 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
US8109979B2 (en) 2003-03-06 2012-02-07 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US20040176774A1 (en) * 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
US8435297B2 (en) 2003-03-06 2013-05-07 Spinecore, Inc. Intervertebral disc replacement
US10159578B2 (en) 2003-03-06 2018-12-25 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US20050071013A1 (en) * 2003-03-06 2005-03-31 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US20040176772A1 (en) * 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
US7641654B2 (en) 2003-03-06 2010-01-05 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US7648511B2 (en) 2003-03-06 2010-01-19 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US9028552B2 (en) 2003-03-06 2015-05-12 Spinecore, Inc. Cervical disc replacement
US7674292B2 (en) 2003-03-06 2010-03-09 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US20100070040A1 (en) * 2003-03-06 2010-03-18 Spinecore, Inc. Intervertebral Disc Replacement
US7708780B2 (en) 2003-03-06 2010-05-04 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US20040176778A1 (en) * 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
US8231628B2 (en) 2003-03-06 2012-07-31 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US20050240270A1 (en) * 2003-03-06 2005-10-27 Spinecore, Inc. Cervical disc replacement
US7662182B2 (en) 2003-03-06 2010-02-16 Spinecore, Inc. Instrumentation and methods for use in implanting a cervical disc replacement device
US7771480B2 (en) 2003-04-04 2010-08-10 Theken Spine, Llc Artificial disc prosthesis
US7771478B2 (en) 2003-04-04 2010-08-10 Theken Spine, Llc Artificial disc prosthesis
US7763075B2 (en) 2003-04-04 2010-07-27 Theken Spine, Llc Artificial disc prosthesis
US7763076B2 (en) 2003-04-04 2010-07-27 Theken Spine, Llc Artificial disc prosthesis
US20060142860A1 (en) * 2003-04-04 2006-06-29 Theken Disc, Llc Artificial disc prosthesis
US20060149377A1 (en) * 2003-04-04 2006-07-06 Theken Disc, Llc Artificial disc prosthesis
US20060259146A1 (en) * 2003-04-04 2006-11-16 Theken Disc, Llc Artificial disc prosthesis
US7806935B2 (en) 2003-04-04 2010-10-05 Theken Spine, Llc Artificial disc prosthesis
US20080033555A1 (en) * 2004-02-02 2008-02-07 Cervitech, Inc. Cervical prosthesis and instrument set
WO2005072658A2 (en) * 2004-02-02 2005-08-11 Cervitech, Inc. Cervical prosthesis and instruments
WO2005072658A3 (en) * 2004-02-02 2005-11-10 Cervitech Inc Cervical prosthesis and instruments
US8021428B2 (en) 2004-06-30 2011-09-20 Depuy Spine, Inc. Ceramic disc prosthesis
US20060235523A1 (en) * 2005-04-19 2006-10-19 Sdgi Holdings, Inc. Implant having a sheath with a motion-limiting attribute
US20070270971A1 (en) * 2006-03-14 2007-11-22 Sdgi Holdings, Inc. Intervertebral prosthetic disc with improved wear resistance
US20070270970A1 (en) * 2006-03-14 2007-11-22 Sdgi Holdings, Inc. Spinal implants with improved wear resistance
WO2007106760A1 (en) * 2006-03-14 2007-09-20 Warsaw Orthopedic, Inc. Intervertebral prosthetic disc with improved wear resistance
US20070233246A1 (en) * 2006-03-31 2007-10-04 Sdgi Holdings, Inc. Spinal implants with improved mechanical response
EP1842510A1 (en) * 2006-04-06 2007-10-10 AESCULAP AG & Co. KG Intervertebral implant
US20070239277A1 (en) * 2006-04-06 2007-10-11 Aesculap Ag & Co. Kg Intervertebral implant
WO2007130278A3 (en) * 2006-05-03 2008-06-05 Kevin Jon Lawson Modular disc for spinal arthroplasty through a small posterior exposure with intradiscalor intervertebral assembly in-situ
WO2007130278A2 (en) * 2006-05-03 2007-11-15 Kevin Jon Lawson Modular disc for spinal arthroplasty through a small posterior exposure with intradiscalor intervertebral assembly in-situ
US20080021557A1 (en) * 2006-07-24 2008-01-24 Warsaw Orthopedic, Inc. Spinal motion-preserving implants
US20080021462A1 (en) * 2006-07-24 2008-01-24 Warsaw Orthopedic Inc. Spinal stabilization implants
US8864834B2 (en) 2007-01-30 2014-10-21 Tornier Sas Method and apparatus for fitting a shoulder prosthesis
US20090287309A1 (en) * 2007-01-30 2009-11-19 Tornier Sas Intra-articular joint replacement
US8974536B2 (en) 2007-01-30 2015-03-10 Tornier Sas Intra-articular joint replacement
US20110098822A1 (en) * 2007-01-30 2011-04-28 Gilles Walch Intra-articular joint replacement
US9089435B2 (en) 2007-01-30 2015-07-28 Tornier Sas Intra-articular joint replacement
US8568484B2 (en) 2007-02-19 2013-10-29 Zimmer Spine, Inc. Spinal implant
US8192492B2 (en) * 2007-02-19 2012-06-05 Zimmer Spine, Inc. Spinal implant
US20080200985A1 (en) * 2007-02-19 2008-08-21 Zimmer Spine, Inc. Spinal implant
US8021424B2 (en) 2008-01-25 2011-09-20 Aesculap Ag Intervertebral implant
US20090192614A1 (en) * 2008-01-25 2009-07-30 Aesculap Ag Intervertebral implant
US8123813B2 (en) 2009-07-14 2012-02-28 Biomet Manufacturing Corp. Pyrocarbon orthopedic implant
US20110015740A1 (en) * 2009-07-14 2011-01-20 Biomet Manufacturing Corp. Pyrocarbon Orthopedic Implant
US8834573B2 (en) 2009-07-14 2014-09-16 Biomet Manufacturing, Llc Pyrocarbon orthopedic implant
US9173748B2 (en) 2009-08-07 2015-11-03 Ebi, Llc Toroid-shaped spinal disc
US20110035006A1 (en) * 2009-08-07 2011-02-10 Ebi, Llc Toroid-Shaped Spinal Disc
US20110035010A1 (en) * 2009-08-07 2011-02-10 Ebi, Llc Toroid-shaped spinal disc
US9408652B2 (en) 2010-04-27 2016-08-09 Tornier Sas Intra-articular joint replacement and method
US8932663B2 (en) * 2010-08-18 2015-01-13 Ascension Orthopedics, Inc. Pyrocarbon coated bone implants
US20130304226A1 (en) * 2010-08-18 2013-11-14 Ascension Orthopedics, Inc. Pyrocarbon coated bone implants
WO2012024266A1 (en) * 2010-08-18 2012-02-23 Ascension Orthopedics, Inc. Pyrocarbon coated bone implants
US20160331545A1 (en) * 2013-02-11 2016-11-17 Brian D. Burkinshaw Unitary spinal disc implant
AT14375U1 (en) * 2014-02-12 2015-10-15 Ho Med Handelsgesellschaft M B H Implant for insertion between vertebral bodies of the spine
US10251755B2 (en) 2014-09-24 2019-04-09 Tornier Sas Method and apparatus for fitting a shoulder prosthesis
EP3162324A1 (en) * 2015-10-26 2017-05-03 K2M, Inc. Cervical disc and instrumentation

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