Source: http://www.google.com/patents/US20050060036?dq=5311516
Timestamp: 2016-07-27 18:09:46
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Patent US20050060036 - Spinal column implant - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA spinal column implant is provided for contact with a vertebral body. The implant includes at least one contact surface including a contact plane having a cross-sectional area in contact with the vertebral body. The shape and arrangement of the at least one contact surface is adjustable such that the...http://www.google.com/patents/US20050060036?utm_source=gb-gplus-sharePatent US20050060036 - Spinal column implantAdvanced Patent SearchPublication numberUS20050060036 A1Publication typeApplicationApplication numberUS 10/885,370Publication dateMar 17, 2005Filing dateJul 6, 2004Priority dateMay 21, 2003Also published asDE10324108B3, DE10333659A1, DE20308171U1, DE20311400U1, DE502004007288D1, EP1624830A2, EP1624830B1, WO2004103226A2, WO2004103226A3Publication number10885370, 885370, US 2005/0060036 A1, US 2005/060036 A1, US 20050060036 A1, US 20050060036A1, US 2005060036 A1, US 2005060036A1, US-A1-20050060036, US-A1-2005060036, US2005/0060036A1, US2005/060036A1, US20050060036 A1, US20050060036A1, US2005060036 A1, US2005060036A1InventorsRobert Schultz, Jens Beger, Stephan Lindner, Jorg Schumacher, Ulrich Kramer, Uwe Bader, Stefan WallsteinOriginal AssigneeRobert Schultz, Jens Beger, Stephan Lindner, Jorg Schumacher, Ulrich Kramer, Uwe Bader, Stefan WallsteinExport CitationBiBTeX, EndNote, RefManPatent Citations (187), Referenced by (175), Classifications (40), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetSpinal column implant
DETAILED DESCRIPTION OF THE INVENTION [0076] Although the invention is illustrated and described herein with reference to specific embodiments, the invention is not intended to be limited to the details shown. Rather, various modifications may be made in the details within the scope and range of equivalents of the claims and without departing from the invention. [0077] The implants shown in FIGS. 1 through 23 are vertebral body replacement implants and those in FIGS. 24 through 30 are intervertebral implants. [0078] The implant 1 shown in FIGS. 1 through 5 comprises a piston and cylinder unit 2 with a cylinder 3 and a piston 4 mounted displaceably therein. The interior space of the piston and cylinder unit 2 can be connected via a connection opening 5 with a flexible tube 6, and this flexible tube 6 is in connection with an external reserve of a pressurizing medium (not shown), for example, a syringe-like instrument, with which a hydraulic medium, e.g., a saline solution or even a compressed gas, can be introduced into the cylinder 3, so that the piston 4 is pushed as a result out of the cylinder 3. The piston 4 can be fixed in any desired position in relation to the cylinder 3 by means of a locking screw 7 at the cylinder 3. [0079] In addition, the interior space of the cylinder 3 can be emptied via a standard relief valve, which is not shown in the drawings, so that the interior space can be depressurized. [0080] Elastically expandable, substantially U-shaped holding tongs 8 each are arranged at both the cylinder 3 and the piston 4, the holding tongs 8 having the same design and opening toward the side facing away from the piston and cylinder unit 2. Such holding tongs 8 can be clearly recognized in FIGS. 23 a through 23 e on the underside of the implant. [0081] A bearing shaft 9, at which a plate-like contact surface 10 is held, can be snapped elastically into the holding tongs 8. The same design is selected on both sides of the piston and cylinder unit 2, i.e., at the cylinder 3 and at the piston 4, and the design and the function of only one of these contact surfaces will be explained in greater detail below. The contact surface 10 is composed of two parts 11, 12, which have a substantially semicircular cross section. At their inner end edges 13, both parts 11, 12 carry projections 14, 15, which extend in parallel to one another and mesh with one another in a finger-like manner, and the bearing shaft 9 is passed through at least some of these projections 14, 15 such that the two parts 11, 12 are mounted at the bearing shaft 9 pivotably around the bearing shaft 9 in relation to one another. The finger-like projections 14, 15 slide along one another during this pivoting movement and thus guide the two parts 11, 12 in the axial direction. The two parts 11, 12 can be pivoted apart completely and are located in one plane in this case. [0082] This position, which will hereinafter be called the contact position, is defined by suitable stops. Consequently, the two parts 11, 12 form a flat contact surface 10 that is circular as a whole in this position. [0083] The two parts 11, 12 may be pivoted in relation to one another, and this always happens in the direction facing away from the piston and cylinder unit 2. They now form an angle between them, which is approximately a right angle in the exemplary embodiment shown in FIG. 5, but which may also be an acute angle, and this end position is defined by suitable stops. The extension of the contact surface 10 in a plane that extends at right angles to the direction of adjustment of the piston and cylinder unit 2 is smaller in this pivoted-together state, which will hereinafter be called the insertion position, than the extension of the contact surface 10 in the contact position. [0084] The bearing shaft 9 is designed as a locking screw and is screwed for this purpose into an internal threaded section of one of the projections 14. Thus, when the bearing shaft 9 is being screwed in, it clamps together the projections 14 and 15 of the two parts 11, 12 of the contact surface 10 and fixes same as a result in its corresponding angular position. The bearing shaft 9 carries a hexagon head 16 for this purpose, to which a screwing-in tool can be attached. [0085] This hexagon head 16 is located directly above the locking screw 7, so that both the bearing shaft 9 and the locking screw 7 can be actuated from the same side. [0086] The bearing shaft 9 is also fixed by this clamping in the holding tongs 8, because the projections 14, 15 are also pressed against the lateral surfaces of the holding tongs 8, and the assembly unit comprising the two parts 11, 12 of the contact surface 10, on the one hand, and of the bearing shaft 9, on the other hand, are thus securely fixed in the holding tongs 8 when the bearing shaft 9 is screwed in. [0087] The assembly unit comprising the contact surface 10 and the bearing shaft 9 may be easily replaced at the piston and cylinder unit 2. The bearing shaft 9 is loosened, after which the bearing shaft 9 can be extracted from the holding tongs 8 and another assembly unit can be inserted. It is thus possible to select intraoperatively the assembly unit comprising the contact surface and the bearing shaft that is particularly needed for the special purpose of the surgery, and rapid replacement is also possible if necessary. [0088] To introduce the implant 1 into the body, the two parts 11, 12 are pivoted against one another into the insertion position and then fixed by tightening the bearing shaft 9. The extension of the implant 1 at right angles to the direction of adjustment of the piston and cylinder unit 2 is thus relatively small, so that the piston and cylinder unit 2 can be introduced into the body through accesses with a small diameter without problems (FIG. 5). [0089] After the introduction, the contact surface 10 can be unfolded inside the body after loosening the bearing shaft 9 into the contact position, in which the two parts 11, 12 are located in one plane, and the implant 1 can then be pushed into the intermediate place between the remaining adjacent vertebral bodies in place of a missing vertebral body. [0090] The procedure illustrated in FIGS. 23 a through 23 e can be followed in the case of an implant that is not to replace a missing vertebral body, but only strengthen a weakened vertebral body. An opening is prepared laterally in the weakened vertebral body, and the implant 1 is pushed through this opening into the vertebral body after it has been introduced into the body. For clarity purposes, a contact surface 10 is shown in FIGS. 23 a through 23 e only at the upper end of the piston and cylinder unit 2, and not at the lower end. However, it is contemplated that contact surfaces of the same type are also used at the lower end. The view is shown without a lower contact surface to show the holding tongs 8 clearly. [0091] The implant 1 may be pushed into the vertebral body to be strengthened in the insertion position, so that the edges of the parts 11, 12 of the contact surface 10 will first come into contact with the vertebral bodies to be supported (FIG. 23 a). By distracting the piston and cylinder unit 2, the contact surfaces are successively pressed against the vertebral bodies to be supported, and the vertebral body end faces unfold the two parts 11, 12 in the process until these are finally located in one plane (FIGS. 23 b through 23 e). The bearing shaft 9 can be clamped in this position, and the two parts 11, 12 are thus fixed in their pivoted-out contact position; in addition, the contact surface 10 and the bearing shaft 9 are fixed in the holding tongs 8. [0092] This operation is carried out in the same manner at both ends of the implant 1, and the distance reached by the piston and cylinder unit 2 can be fixed after this operation by tightening the locking screw 7, and the piston and cylinder unit 2 can be subsequently relieved, i.e., the pressurizing medium is removed from the piston and cylinder unit 2, and the distance once reached between the contact surfaces 10 is maintained because of the action of the locking screw 7. [0093] The same procedure may, of course, also be followed in case of an implant that is used to replace a missing vertebral body. [0094] While the two parts 11, 12 of the contact surface 10 in the exemplary embodiment according to FIGS. 1 through 5 as well as 23 a through 23 e are pivotable in relation to one another around an axis that extends at right angles to the direction of adjustment of the piston and cylinder unit 2, FIGS. 6 through 8 show an exemplary embodiment in which the two parts 11, 12 are rotatable in relation to one another around an axis that extends in parallel to the direction of adjustment. A similar design is otherwise selected, and parts that correspond to one another therefore carry the same reference numbers. [0095] The two parts 11, 12 are semicircular in this case and have no projections meshing with one another in a finger-like manner, but they are in contact with one another with their end edges 13 in the contact position and thus form a continuous circular contact surface 10. One of the two parts is rigidly connected with the cylinder 3 and the piston 4, respectively, and the other of the two parts is mounted, in contrast, rotatably in relation to the first part. A bearing bolt 17, which passes through one part 11 and is screwed into the other part 12 and also acts as a locking screw in the clamped state at the same time and thus fixes the rotatable part 11, is used for mounting. This rotatable part 11 can be displaced in the direction of the bearing bolt 17 such that it is located next to the part 12 in the contact position (FIG. 6), whereas it is located on the part 12, covering the same, in the insertion position (FIG. 7). [0096] While the mutual fixation can be performed by the action of the bearing bolt 17 acting as a locking screw, an additional or exclusive fixation may also be achieved by positive locking. For example, the pivotable part 11 may immerse with a web 18 into a groove 19 of the stationary part 12 when the part 11 is in the contact position (FIG. 8). The web 18 now connects the part 11 with a bearing eye 20 through which the bearing bolt 17 passes, and the groove 19 is located in a collar 21 of the stationary part 12, which collar 21 surrounds the bearing bolt 17. [0097] The overall width of the contact surface is reduced in the insertion position by the two parts 11 and 12 covering one another. [0098] A similar embodiment is shown in the exemplary embodiment according to FIGS. 9 through 11, parts corresponding to one another being designated by the same reference numbers. The two parts 11, 12 are connected to one another in this case via guide rod pairs 22, 23 arranged on opposite sides, and each guide rod pair is formed by two parallel guide rods 24, 25, and part 11 is thus mounted displaceably in parallel to itself at the part 12 rigidly connected to the piston and cylinder unit 2 via a parallelogram guide. The displacement may take place between a contact position in which the part 11 is arranged next to the part 12 in the same plane as this (FIG. 9), and an insertion position in which the part 11 is arranged on the part 12, covering the same (FIGS. 10 and 11). [0099] As in the exemplary embodiment according to FIGS. 6 and 8, the extension of the contact surface is larger in the contact position than in the insertion position in this exemplary embodiment as well. [0100] In the exemplary embodiment according to FIGS. 15 and 16, in which a design similar to that in the exemplary embodiment according to FIGS. 1 through 5 is selected, and in which parts that correspond to one another have the same reference numbers, the two parts 11, 12 are connected pivotably around a respective pivot axis 26 and 27 of their own with the bearing post 28, which itself carries an external thread 29. A nut 30 is screwed onto the external thread 29, the nut 30 being moved during the screwing together along the external thread 29 and is rotatably and axially nondisplaceably connected with a retaining ring 31, at which a guide rod 32, 33, is each mounted pivotably on opposite sides. These guide rods 32 and 33 are pivotably connected with the parts 11, 12, so that the parts 11, 12 can be pivoted during the displacement of the nut 30 along the external thread 29 from a lower position, in which they extend in parallel to one another in the same plane and thus define the contact position (FIG. 15), into an upper position, in which they are folded up and, extending essentially in parallel to each other, project upwardly (FIG. 16). The extension of the parts 11, 12 in a plane extending at right angles to the direction of displacement of the piston and cylinder unit 2 is considerably smaller in the folded-up state than in the contact position, in which the two parts 11, 12 are located in a common plane. [0101] The nut 30 acts as a locking mechanism at the same time, and provisions may additionally be made for the pivot axes 26, 27 to be formed by locking screws, which fix the angular position of the parts 11, 12 at the bearing post 28, similar to the bearing shaft 9. [0102] At least one of the two parts 11, 12, which otherwise have a design similar to that in the exemplary embodiment according to FIGS. 1 through 5, is displaceable in the plane of the contact surface 10 in relation to the other part in the exemplary embodiment according to FIGS. 17 through 19, and this displacing movement is guided by projections 14, 15, which mesh with one another in a finger-like manner and mesh with one another more deeply with the parts 11, 12 pushed together than in the case in which the parts 11, 12 are pulled apart. The insertion position is assumed in the pushed-together state (FIG. 17), and the contact position in the pulled-apart state (FIG. 18). The transverse extension of the contact surface 10 is markedly smaller in the insertion position than in the contact position. [0103] The relative positions of the two parts 11, 12 can be fixed in this case as well, for example, by a locking screw 34, which passes through both parts 11, 12 and is shown only schematically in the views in FIGS. 17 through 19. [0104] While the contact surface comprises a plurality of parts that can be pivoted or displaced in relation to one another in the devices explained thus far, the exemplary embodiment according to FIGS. 12 through 14 shows a one-part contact surface 10. The design selected is otherwise similar to that in the exemplary embodiment according to FIGS. 1 through 5. [0105] The one-part contact surface 10 is mounted pivotably at a bearing projection 35 of the cylinder 3 and of the piston 4 by means of a hinge pin 36, and this hinge pin 36 engages an elongated hole guide 37 in the contact surface 10, so that the contact surface 10 can be displaced in relation to the hinge pin 36. [0106] In the contact position, the hinge pin 36 is at one end of the elongated hole guide 37 and approximately in the middle of the contact surface 10. In contrast, the contact surface 10 is first displaced in the insertion position on the hinge pin 36 to the extent that the hinge pin 36 strikes the other end of the elongated hole guide 37, i.e., in the area of the contact surface 10 near the edge. The entire contact surface 10 can be pivoted upward by 90� in this position, so that it will thus be directed upward in the extension of the piston and cylinder unit 2 (FIG. 14). The extension of the contact surface 10 at right angles to the direction of displacement of the piston and cylinder unit 2 is markedly smaller in this insertion position than in the contact position according to FIG. 12. The hinge pin 36 may be designed as a locking screw in this case as well, and it can fix the contact surface 10 in any desired angular position in relation to the bearing projection 35. [0107] A displacing movement of the contact surface 10 in relation to the piston and cylinder unit 2 can be achieved not only by means of bearing shafts, but also by the suitable guiding of guide elements in guideways. In the exemplary embodiment according to FIGS. 20 through 22, the piston and cylinder unit 2 carries such a guide element 38 in the form of an expanding projection, which meshes in a positive-locking manner with an arc-shaped guideway 39 of a contact surface 10, only a lower part of which is shown in the views in FIGS. 20 through 22. It becomes clear from the schematic views in FIGS. 20 through 22 that tilting of the contact surface 10 out of the contact position, in which this embodiment extends at right angles to the direction of displacement of the piston and cylinder unit 2, into a tilted position, in which the contact surface 10 is pivoted at least partially or completely in the direction of the displacement and has a smaller width at right angles thereto as a result, is possible in this way as well. [0108] The guide element 38 can be fixed by a locking screw 40 in relation to the guideway 39 in any desired position in this embodiment. [0109] Provisions may be made in all the exemplary embodiments described for the contact surface 10 to be held alone or together with its bearing elements detachably and replaceably at the piston and cylinder unit 2, as this was described, for example, in the exemplary embodiment according to FIGS. 1 through 5 in respect to the snapping in of the bearing shaft 9 into the holding tongs 8. It is thus always possible to intraoperatively connect different contact surfaces with the piston and cylinder unit 2 and thus meet the particular requirements in terms of the geometry of the contact surfaces. These may also have an extension that is smaller than the extension of the supported vertebral end faces, as this becomes clear, for example, from the exemplary embodiment shown in FIGS. 23 a through 23 e. [0110] While the above exemplary embodiments represent vertebral body replacement implants, which are inserted to bridge over a vertebral body defect, FIGS. 24 through 30 show intervertebral implants, which can be inserted into the intervertebral space between two adjacent vertebral bodies after the removal of the intervertebral disk. [0111] The intervertebral implant 41 shown in FIGS. 24 through 27 comprises an approximately rectangular, oblong contact surface 42, which is about twice as long as it is wide. The length corresponds here approximately to the transverse dimension of the vertebral body support surface, whereas the contact surface 42 at right angles thereto is only about half the width of the vertebral body contact surface. A substantially rectangular shape is selected in the exemplary embodiment shown. However, it is also contemplated that a kidney shape may be selected, or a shape bent in any other way, which is adapted to the contour of the vertebral body surface. [0112] On one side, the contact plate 42 carries anchoring projections 43, which penetrate the vertebral body in contact with the anchoring projections 43 and fix the contact plate 42. [0113] Two such contact plates 42 together form an intervertebral implant 41, and two contact plates 42 are provided for this purpose with crowned, mutually complementary joint surfaces 44, which are two-dimensionally in contact with one another and are formed, for example, by ceramic inlay bodies, which are firmly inserted into corresponding recesses of the contact plate 42. As a result, the two contact plates 42 pivotably support one another and can be pivoted in relation to one another within certain limits. [0114] Each of the two contact plates 42 has, along a longitudinal edge 45, a depression 46, which receive two support arms 47 each. The two support arms 47 have a mirror symmetrical design in the exemplary embodiment shown in FIGS. 24 through 27, and only one of the support arms 47 will therefore be explained in greater detail. The support arm 47 is mounted pivotably at the contact plate 42 around a pivot axis 48 extending perpendicularly on the contact plate 42, and the pivot axis 48 is located in a corner area. In this area, the support arm 47 surrounds the pivot axis 48 in the manner of an eye and extends with an extension part 49 approximately up to the middle of the contact plate 42 when both support arms 47 are pivoted into the depression 46 (FIG. 24). In this position, the extension parts 49 are located in the middle of the contact plate 42 directly opposite one another, and the support arms 47 are completely covered by the contact plate 42. [0115] Both support arms 47 can be pivoted out of this position, so that the extension part 49 projects beyond the outer contour of the contact plate 42 and enlarges the effective contact surface of the contact plate 42 as a result (FIG. 26). A leaf spring 50, which performs an excursion during the pivoting out of the support arm 47 and is in contact by its free end with an edge 51 of the depression 46 such that the support arm 47 cannot be pivoted back into the pivoted-in position any longer, is inserted laterally into the support arm 47. Securing against the unintended pivoting in of the support arm 47 is thus achieved. [0116] Only the two support arms 47 are replaced with a single support arm 47, which extends essentially over the entire length of the contact plate 42, in the exemplary embodiment according to FIG. 28, which has essentially the same design and in which identical parts are therefore designated by the same reference numbers. The extension part 49 has an arc-shaped design, so that the effective contact surface is increased as much as possible during the pivoting out of the support arm 47 and the extension part 49 extends over the edge area of the vertebral body, which has an especially high strength. This also applies to the support arms 47 in the exemplary embodiment according to FIGS. 24 through 27, in which the extension parts 49 also extend into the especially stable edge area of the vertebral body and therefore support the contact plate especially effectively at the vertebral body. [0117] While pivotable support arms are used in the exemplary embodiments according to FIGS. 24 through 28 to enlarge the effective contact surface of the contact plate 42, the contact plate 42 of the exemplary embodiment according to FIGS. 29 and 30, which otherwise has a similar design and in which identical parts are designated by the same reference numbers, has a support element 52, which has a U-shaped design and thus has two parallel legs 53 and a bent web 54 connecting these legs 53. This support element 52 is mounted displaceably in parallel to its legs 53 in the depression 46 and can thus be displaced from a pushed-in position, in which the contact plate 42 completely covers the support element 52 (indicated by solid lines in FIG. 30) into a pushed-out position (indicated by dash-dotted lines in FIG. 30), in which the web 54 and parts of the legs 53 project beyond the contour of the contact plate 42 and thus enlarge the effective contact surface of the contact plate 42. Locking may also be provided in this case, for example, with the use of a leaf spring, as described above with reference to FIG. 27. [0118] Due to the relatively small dimensions of the contact plate 42, it is possible to introduce this intervertebral implant 41 into the intervertebral space from the side rather than ventrally, as is otherwise common, and implantation can be performed as a result, even in cases in which ventral introduction would cause difficulties or would be impossible because of the anatomic conditions. Nevertheless, the effective contact surface of the contact plate 42 can be enlarged by pivoting out or extracting the support arms 47 or support elements 52 to the extent that the supporting forces are distributed over a very large contact surface, so that there is no risk of the contact plates 42 breaking into the vertebral bodies. [0119] The various designs to enlarge the contact surfaces may be interchanged between vertebral replacement implants and intervertebral implants as desired, i.e., the designs described in the examples on the basis of intervertebral implants and vertebral body replacement implants are not limited to these alone. [0120] Biocompatible metals, especially titanium alloys or chromium-cobalt alloys, are preferably used as the material for all of the above-described parts 10, 11, 12, and 42. As an alternative, components may be made of plastic, especially from PEEK™, which is a polymer (polyether ether ketone) manufactured by Victrex� PLC of the United Kingdom. PEEK™ is transparent to X-rays, which leads to a great advantage in postoperative X-ray diagnostics with CTs or nuclear spin tomography, because, unlike metals, the plastic does not cause any artifacts (i.e., obstructions) in the X-ray image. [0121] To minimize wear, components may be made of ceramic. Such ceramic components are manufactured with corresponding precision such that the wear nearly equals zero. A further advantage of a ceramic-on-ceramic bearing is that the problem of creep under load, which is peculiar to polyethylene, is absent. Since ceramic material has a substantially higher compressive strength and dimensional stability than polyethylene, dimensions may be reduced. The forced translational motion superimposed to the flexion/extension movement decreases as a result. [0122] The components described above may be mounted substantially without clearance, because abrasion may otherwise occur at ceramic/metal interfaces because of the hardness of the ceramic material. This clearance-free mounting/assembly can be achieved, e.g., by means of a conical clamping. However, other possibilities of the clearance-free mounting/assembly can be exhausted as well, such as: shrinking of the parts onto bearing surfaces by means of thermal expansion; use of elastic intermediate elements (not shown), which compensate a clearance between components due to their intrinsic elasticity/deformation; and additional locking screws (not shown). [0123] The intervertebral disk prosthesis can be inserted with the aid of navigated instruments. In use, components are assembled prior to implantation, and the intervertebral disk prosthesis is implanted in the assembled state, thereby significantly simplifying the implantation procedure. [0124] While preferred embodiments of the invention have been shown and described herein, it will be understood that such embodiments are provided by way of example only. Numerous variations, changes and substitutions will occur to those skilled in the art without departing from the spirit of the invention. Accordingly, it is intended that the appended claims cover all such variations as fall within the spirit and scope of the invention. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3266113 *Dec 14, 1964Aug 16, 1966Minnesota Mining & MfgInterreacting articlesUS3426364 *Aug 25, 1966Feb 11, 1969Colorado State Univ Research FProsthetic appliance for replacing one or more natural vertebraeUS3867728 *Apr 5, 1973Feb 25, 1975Cutter LabProsthesis for spinal repairUS3875595 *Apr 15, 1974Apr 8, 1975Froning Edward CIntervertebral disc prosthesis and instruments for locating sameUS4309777 *Nov 13, 1980Jan 12, 1982Patil Arun AArtificial intervertebral discUS4863476 *Aug 28, 1987Sep 5, 1989Shepperd John A NSpinal implantUS4863477 *May 12, 1987Sep 5, 1989Monson Gary LSynthetic intervertebral disc prosthesisUS4911718 *Jun 10, 1988Mar 27, 1990University Of Medicine & Dentistry Of N.J.Functional and biocompatible intervertebral disc spacerUS5002576 *Jun 6, 1989Mar 26, 1991Mecron Medizinische Produkte GmbhIntervertebral disk endoprosthesisUS5037438 *Jul 25, 1989Aug 6, 1991Richards Medical CompanyZirconium oxide coated prosthesis for wear and corrosion resistanceUS5192327 *Mar 22, 1991Mar 9, 1993Brantigan John WSurgical prosthetic implant for vertebraeUS5201101 *Apr 28, 1992Apr 13, 1993Minnesota Mining And Manufacturing CompanyMethod of attaching articles and a pair of articles fastened by the methodUS5236460 *Oct 10, 1991Aug 17, 1993Midas Rex Pneumatic Tools, Inc.Vertebral body prosthesisUS5258031 *Dec 14, 1992Nov 2, 1993Danek MedicalIntervertebral disk arthroplastyUS5306308 *Oct 23, 1990Apr 26, 1994Ulrich GrossIntervertebral implantUS5314477 *Mar 4, 1991May 24, 1994J.B.S. Limited CompanyProsthesis for intervertebral discs and instruments for implanting itUS5370697 *Feb 19, 1993Dec 6, 1994Sulzer Medizinaltechnik AgArtificial intervertebral disk memberUS5390683 *Feb 21, 1992Feb 21, 1995Pisharodi; MadhavanSpinal implantation methods utilizing a middle expandable implantUS5401269 *Mar 10, 1993Mar 28, 1995Waldemar Link Gmbh & Co.Intervertebral disc endoprosthesisUS5507816 *Dec 1, 1992Apr 16, 1996Customflex LimitedSpinal vertebrae implantsUS5545227 *Jun 20, 1994Aug 13, 1996Smith & Nephew Richards, Inc.Biocompatible low modulus medical implantsUS5556431 *Aug 9, 1994Sep 17, 1996B+E,Uml U+Ee Ttner-Janz; KarinIntervertebral disc endoprosthesisUS5562738 *Jan 12, 1995Oct 8, 1996Danek Medical, Inc.Intervertebral disk arthroplasty deviceUS5674296 *Jul 22, 1996Oct 7, 1997Spinal Dynamics CorporationHuman spinal disc prosthesisUS5676635 *Aug 30, 1995Oct 14, 1997Levin; BruceInstrument for insertion of an endotracheal tubeUS5676701 *Jun 7, 1995Oct 14, 1997Smith & Nephew, Inc.Low wear artificial spinal discUS5683465 *Mar 18, 1996Nov 4, 1997Shinn; Gary LeeArtificial intervertebral disk prosthesisUS5702449 *Jun 7, 1995Dec 30, 1997Danek Medical, Inc.Reinforced porous spinal implantsUS5824094 *Oct 17, 1997Oct 20, 1998Acromed CorporationSpinal discUS5827328 *Nov 22, 1996Oct 27, 1998Buttermann; Glenn R.Intervertebral prosthetic deviceUS5865846 *May 15, 1997Feb 2, 1999Bryan; VincentHuman spinal disc prosthesisUS5888226 *Nov 12, 1997Mar 30, 1999Rogozinski; ChaimIntervertebral prosthetic discUS5888227 *Oct 3, 1996Mar 30, 1999Synthes (U.S.A.)Inter-vertebral implantUS5893889 *Jun 20, 1997Apr 13, 1999Harrington; MichaelArtificial discUS5989291 *Feb 26, 1998Nov 23, 1999Third Millennium Engineering, LlcIntervertebral spacer deviceUS6001130 *Oct 6, 1997Dec 14, 1999Bryan; VincentHuman spinal disc prosthesis with hingesUS6013103 *Nov 26, 1997Jan 11, 2000Wright Medical Technology, Inc.Medial pivot knee prosthesisUS6019792 *Apr 23, 1998Feb 1, 2000Cauthen Research Group, Inc.Articulating spinal implantUS6019793 *Oct 21, 1996Feb 1, 2000SynthesSurgical prosthetic deviceUS6039763 *Oct 27, 1998Mar 21, 2000Disc Replacement Technologies, Inc.Articulating spinal disc prosthesisUS6063121 *Jul 29, 1998May 16, 2000Xavier; RaviVertebral body prosthesisUS6113637 *Oct 22, 1998Sep 5, 2000Sofamor Danek Holdings, Inc.Artificial intervertebral joint permitting translational and rotational motionUS6113639 *Mar 23, 1999Sep 5, 2000Raymedica, Inc.Trial implant and trial implant kit for evaluating an intradiscal spaceUS6127597 *Mar 6, 1998Oct 3, 2000Discotech N.V.Systems for percutaneous bone and spinal stabilization, fixation and repairUS6139579 *Oct 31, 1997Oct 31, 2000Depuy Motech Acromed, Inc.Spinal discUS6146421 *Jan 19, 1999Nov 14, 2000Gordon, Maya, Roberts And Thomas, Number 1, LlcMultiple axis intervertebral prosthesisUS6156067 *May 15, 1997Dec 5, 2000Spinal Dynamics CorporationHuman spinal disc prosthesisUS6162252 *Dec 12, 1997Dec 19, 2000Depuy Acromed, Inc.Artificial spinal discUS6176881 *Apr 15, 1997Jan 23, 2001SynthesTelescopic vertebral prosthesisUS6193757 *Oct 29, 1998Feb 27, 2001Sdgi Holdings, Inc.Expandable intervertebral spacersUS6200322 *Aug 13, 1999Mar 13, 2001Sdgi Holdings, Inc.Minimal exposure posterior spinal interbody instrumentation and techniqueUS6206923 *Jan 8, 1999Mar 27, 2001Sdgi Holdings, Inc.Flexible implant using partially demineralized boneUS6210442 *Jan 7, 1999Apr 3, 2001Aesculap Ag & Co. KgImplant for vertebral body fusionUS6231609 *Feb 10, 1999May 15, 2001Hamid M. MehdizadehDisc replacement prosthesisUS6277149 *Jun 8, 1999Aug 21, 2001Osteotech, Inc.Ramp-shaped intervertebral implantUS6296664 *Jun 17, 1998Oct 2, 2001Surgical Dynamics, Inc.Artificial intervertebral discUS6348071 *Oct 30, 1998Feb 19, 2002Depuy Acromed, Inc.Spinal discUS6367128 *Feb 10, 2000Apr 9, 20023M Innovative Properties CompanySelf-mating reclosable mechanical fastenerUS6368350 *Mar 11, 1999Apr 9, 2002Sulzer Spine-Tech Inc.Intervertebral disc prosthesis and methodUS6395032 *Dec 9, 1999May 28, 2002Dimso (Distribution Medicale Du Sud-Ouest)Intervertebral disc prosthesis with liquid chamberUS6443987 *Sep 15, 2000Sep 3, 2002Donald W. BryanSpinal vertebral implantUS6443990 *Sep 19, 2000Sep 3, 2002Synthes (U.S.A.)Adjustable intervertebral implantUS6468310 *Jul 16, 2001Oct 22, 2002Third Millennium Engineering, LlcIntervertebral spacer device having a wave washer force restoring elementUS6491726 *Feb 28, 2001Dec 10, 2002Biomedical Engineering Trust IPosterior stabilized prosthetic knee replacement with bearing translation and dislocation prevention featuresUS6494915 *Nov 18, 1999Dec 17, 2002Industrias Quirurgicas De Levante S.L.Knee prosthesis with mobile congruent insertUS6517580 *Mar 9, 2000Feb 11, 2003Scient'x Societe A Responsabilite LimitedDisk prosthesis for cervical vertebraeUS6520996 *Jun 5, 2000Feb 18, 2003Depuy Acromed, IncorporatedOrthopedic implantUS6524341 *Apr 13, 2001Feb 25, 2003Synthes (Usa)Telescopic vertebral prosthesisUS6527804 *Dec 9, 1999Mar 4, 2003Dimso (Distribution Medicale Du Sud-Quest)Intervertebral disk prosthesisUS6527806 *Jul 16, 2001Mar 4, 2003Third Millennium Engineering, LlcIntervertebral spacer device having a spiral wave washer force restoring elementUS6530955 *May 18, 2001Mar 11, 2003Osteotech, Inc.Ramp-shaped intervertebral implantUS6533818 *Jul 26, 2000Mar 18, 2003Pearl Technology Holdings, LlcArtificial spinal discUS6540785 *Mar 24, 2000Apr 1, 2003Sdgi Holdings, Inc.Artificial intervertebral joint permitting translational and rotational motionUS6558424 *Jun 28, 2001May 6, 2003Depuy AcromedModular anatomic fusion deviceUS6562072 *Jul 20, 2000May 13, 2003Aesculap Ag & Co. KgImplant for insertion between spinal column vertebraeUS6607558 *Jul 3, 2001Aug 19, 2003Axiomed Spine CorporationArtificial discUS6610092 *Nov 9, 2001Aug 26, 2003Spinefore, Inc.Intervertebral spacer device having a slotted partial circular domed arch strip springUS6613090 *Jul 27, 2001Sep 2, 2003Aesculap Ag & Co. KgIntervertebral implantUS6626943 *Aug 23, 2002Sep 30, 2003Sulzer Orthopedics Ltd.Artificial intervertebral discUS6645248 *Aug 23, 2002Nov 11, 2003Sulzer Orthopedics Ltd.Artificial intervertebral discUS6645249 *Nov 9, 2001Nov 11, 2003Spinecore, Inc.Intervertebral spacer device having a multi-pronged domed springUS6656224 *Aug 3, 2001Dec 2, 2003Howmedica Osteonics Corp.Artificial intervertebral discUS6666889 *Jan 26, 2000Dec 23, 2003Scient'x (Societe Anonyme)Intersomatic implant for sagittal insertion and suitable for being offset transversely in the frontal planeUS6669730 *Oct 4, 2001Dec 30, 2003Spinecore, Inc.Intervertebral spacer device utilizing a spirally slotted belleville washer having radially extending groovesUS6669732 *Aug 2, 2001Dec 30, 2003Depuy Acromed, Inc.Spinal discUS6673113 *Oct 18, 2001Jan 6, 2004Spinecore, Inc.Intervertebral spacer device having arch shaped spring elementsUS6682562 *Mar 2, 2001Jan 27, 2004Eurosurgical SaIntervertebral disc prosthesisUS6706068 *Apr 22, 2003Mar 16, 2004Bret A. FerreeArtificial disc replacements with natural kinematicsUS6719796 *Feb 7, 2002Apr 13, 2004Advanced Prosthetic Technologies, Inc.Spinal surgical prosthesisUS6723097 *Jul 23, 2002Apr 20, 2004Depuy Spine, Inc.Surgical trial implantUS6723127 *Jun 21, 2002Apr 20, 2004Spine Core, Inc.Artificial intervertebral disc having a wave washer force restoring elementUS6726720 *Mar 27, 2002Apr 27, 2004Depuy Spine, Inc.Modular disc prosthesisUS6758861 *Oct 16, 2002Jul 6, 2004Spinecore, Inc.Intervertebral spacer device having a wave washer force restoring elementUS6764515 *Jan 7, 2002Jul 20, 2004Spinecore, Inc.Intervertebral spacer device utilizing a spirally slotted belleville washer and a rotational mountingUS6770094 *Jun 26, 2002Aug 3, 2004Gerald FehlingIntervertebral disc prosthesisUS6770095 *Jun 18, 2002Aug 3, 2004Depuy Acroned, Inc.Intervertebral discUS6793678 *Mar 27, 2003Sep 21, 2004Depuy Acromed, Inc.Prosthetic intervertebral motion disc having dampeningUS6802867 *Dec 20, 2002Oct 12, 2004Depuy Acromed, Inc.Orthopedic implantUS6827740 *Dec 8, 1999Dec 7, 2004Gary K. MichelsonSpinal implant surface configurationUS6918934 *Jun 21, 2002Jul 19, 2005Spinecore, Inc.Artificial intervertebral disc having a slotted belleville washer force restoring elementUS6936071 *Jul 2, 1999Aug 30, 2005Spine Solutions, Inc.Intervertebral implantUS6984245 *Aug 6, 2002Jan 10, 2006Sdgi Holdings, Inc.Anterior impacted bone graft and driver instrumentsUS6986789 *Jul 6, 2004Jan 17, 2006Aesculap Ag & Co. KgIntervertebral implantUS7001432 *Jan 13, 2003Feb 21, 2006Cervitech, Inc.Intervertebral prosthesisUS7156876 *Oct 8, 2003Jan 2, 2007Depuy Acromed, Inc.Intervertebral motion disc having articulation and shock absorptionUS7179294 *Apr 11, 2003Feb 20, 2007Warsaw Orthopedic, Inc.Articular disc prosthesis and method for implanting the sameUS7198644 *Jun 29, 2004Apr 3, 2007Aesculap Ag & Co. KgIntervertebral implantUS7291173 *Nov 3, 2003Nov 6, 2007Aesculap Ii, Inc.Artificial intervertebral discUS20010016773 *Dec 28, 2000Aug 23, 2001Hassan SerhanSpinal discUS20020016773 *Jun 29, 2001Feb 7, 2002Kenji OhkumaEncryption apparatus and method, and decryption apparatus and method based on block encryptionUS20020022887 *Apr 9, 2001Feb 21, 2002Huene Donald R.Expandable implant for inter-vertebral stabilization, and a method of stabilizing vertebraeUS20020035400 *Feb 13, 2001Mar 21, 2002Vincent BryanImplantable joint prosthesisUS20020107573 *Sep 7, 2001Aug 8, 2002Discure Ltd.Method and apparatus for computerized surgeryUS20020111681 *Oct 1, 2001Aug 15, 2002Ralph James D.Intervertebral spacer device having a radially thinning slotted belleville springUS20030009223 *Jun 26, 2002Jan 9, 2003Gerald FehlingIntervertebral disc prosthesisUS20030014112 *Jun 21, 2002Jan 16, 2003Ralph James D.Artificial intervertebral disc having a wave washer force restoring elementUS20030035395 *Sep 27, 2002Feb 20, 2003Matsushita Electric Industrial Co., Ltd.Radio communication apparatus and radio communication methodUS20030040802 *Sep 26, 2002Feb 27, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and compression locking postUS20030055427 *Dec 1, 2000Mar 20, 2003Henry GrafIntervertebral stabilising deviceUS20030069586 *Oct 29, 2002Apr 10, 2003Errico Joseph P.Instrumentation and methods for use in implanting an artificial intervertebral discUS20030069640 *Aug 20, 2002Apr 10, 2003Ferreira Rui J.Allograft spinal implantUS20030069643 *May 20, 2002Apr 10, 2003Ralph James D.Tension bearing artificial disc providing a centroid of motion centrally located within an intervertebral spaceUS20030074066 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball, a retaining cap, and an interference pinUS20030074067 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having a captured ball and socket joint with a solid ball and compression locking postUS20030074068 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and retaining capUS20030074069 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having a captured ball and socket joint with a solid ball and retaining capUS20030074070 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a retaining cap and a solid ball having a protrusionUS20030074071 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a compression locking post and a solid ball having a protrusionUS20030074072 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball, a compression locking post, and an interference pinUS20030074073 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball, a retaining cap, and an interference ball bearingUS20030074074 *Nov 14, 2002Apr 17, 2003Errico Joseph P.Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball, a compression locking post, and an interference ball bearingUS20030078590 *Dec 4, 2002Apr 24, 2003Errico Joseph P.Static trials and related instruments and methods for use in implanting an artificial intervertebral discUS20030078633 *Sep 30, 2002Apr 24, 2003Firlik Andrew D.Methods and implantable apparatus for electrical therapyUS20030078666 *Nov 9, 2001Apr 24, 2003Ralph James D.Intervertebral spacer device having a slotted partial circular domed arch strip springUS20030176923 *Jan 13, 2003Sep 18, 2003Waldemar Link Gmbh & Co.Intervertebral prosthesisUS20030187454 *Apr 1, 2003Oct 2, 2003Gill Steven S.Artificial intervertebral joint permitting translational and rotational motionUS20030187506 *Mar 27, 2002Oct 2, 2003Raymond RossModular disc prosthesisUS20030191534 *Mar 2, 2001Oct 9, 2003Guy ViartIntervertebral disc prosthesisUS20030220691 *Oct 29, 2002Nov 27, 2003Pioneer Laboratories, Inc.Artificial intervertebral disc deviceUS20030229355 *Feb 5, 2003Dec 11, 2003Link Spine Group, Inc.Surgical instrument for inserting intervertebral prosthesisUS20030229358 *Apr 29, 2003Dec 11, 2003Errico Joseph P.Wedge plate inserter/impactor and related methods for use in implanting an artificial intervertebral discUS20030233146 *Jun 18, 2002Dec 18, 2003Alexander GrinbergIntervertebral discUS20030236520 *Jun 25, 2002Dec 25, 2003Roy LimMinimally invasive expanding spacer and methodUS20030236571 *Jun 21, 2002Dec 25, 2003Ralph James D.Artificial intervertebral disc having a spider spring force restoring elementUS20040002761 *Jun 19, 2003Jan 1, 2004Christopher RogersIntervertebral disc having translationUS20040010316 *Mar 28, 2003Jan 15, 2004Lytton WilliamIntervertebral device and method of useUS20040024462 *Apr 14, 2003Feb 5, 2004Ferree Bret A.Spacerless artificial disc replacementsUS20040034420 *Aug 15, 2003Feb 19, 2004Errico Joseph P.Artificial intervertebral disc having a circumferentially buried wire mesh endplate attachment deviceUS20040034421 *Aug 15, 2003Feb 19, 2004Errico Joseph P.Circumferentially buried wire mesh endplate attachment device for use with an orthopedic deviceUS20040034422 *Aug 15, 2003Feb 19, 2004Errico Joseph P.Intervertebral spacer device having a circumferentially buried wire mesh endplate attachment deviceUS20040034424 *Aug 15, 2003Feb 19, 2004Errico Joseph P.Axially compressible artificial interverterbral disc having a captured ball and socket joint with a solid ball and retaining capUS20040034425 *Aug 15, 2003Feb 19, 2004Errico Joseph P.Axially compressible artificial intervertebral disc having a captured ball and socket joint with a solid ball and compression locking postUS20040034426 *Aug 15, 2003Feb 19, 2004Errico Joseph P.Axially compressible artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and compression locking postUS20040059318 *Sep 19, 2003Mar 25, 2004Sdgi Holdings, Inc.Instrument and method for surgical extractionUS20040073310 *Oct 8, 2003Apr 15, 2004Missoum MoumeneIntervertebral motion disc having articulation and shock absorptionUS20040073312 *Jul 16, 2003Apr 15, 2004Lukas EisermannIntervertebral prosthetic jointUS20040078079 *Oct 21, 2002Apr 22, 2004Foley Kevin T.Systems and techniques for restoring and maintaining intervertebral anatomyUS20040083000 *Jan 23, 2003Apr 29, 2004Waldemar Link Gmbh & Co.Cervical intervertebral prosthesisUS20040093088 *Aug 25, 2003May 13, 2004Ralph James D.Intervertebral spacer device having a slotted partial circular domed arch strip springUS20040098130 *Nov 12, 2003May 20, 2004Ralph James D.Intervertebral spacer device having a multi-pronged domed springUS20040098131 *Nov 14, 2003May 20, 2004Sdgi Holdings, Inc.Human spinal disc prosthesisUS20040102849 *Nov 18, 2003May 27, 2004Ralph James D.Intervertebral spacer device having arch shaped spring elementsUS20040143332 *Oct 31, 2003Jul 22, 2004Krueger David J.Movable disc implantUS20040148027 *Sep 16, 2003Jul 29, 2004Errico Joseph P.Intervertebral spacer device having an engagement hole for manipulation using a surgical toolUS20040158325 *Sep 16, 2003Aug 12, 2004Errico Joseph P.Intervertebral spacer device having engagement hole pairs for manipulation using a surgical toolUS20040158328 *Jan 7, 2004Aug 12, 2004Sdgi Holdings, Inc.Mobile bearing articulating discUS20040167534 *Feb 23, 2004Aug 26, 2004Errico Joseph P.Instrumentation for inserting and impacting an artificial intervertebral disc in an intervertebral spaceUS20040167536 *Feb 23, 2004Aug 26, 2004Errico Joseph P.Instrumentation for properly seating an artificial intervertebral disc in an intervertebral spaceUS20040167537 *Feb 23, 2004Aug 26, 2004Errico Joseph P.Artificial intervertebral disc trial having a controllably separable distal endUS20040167626 *Jan 22, 2004Aug 26, 2004Geremakis Perry A.Expandable artificial disc prosthesisUS20040170342 *Feb 28, 2003Sep 2, 20043M Innovative Properties CompanySlidable fastener bearing assemblyUS20040193158 *Apr 2, 2004Sep 30, 2004Roy LimMinimally invasive expanding spacer and methodUS20040220582 *Dec 28, 2001Nov 4, 2004Arnold KellerSurgical instrument for inserting an intervertebral endoprosthesisUS20040220668 *Feb 6, 2004Nov 4, 2004Sdgi Holdings, Inc.Method and device for correcting spondylolisthesis from the lateral approachUS20040220670 *Feb 6, 2004Nov 4, 2004Sdgi Holdings, Inc.Articular disc prosthesis and method for treating spondylolisthesisUS20040220677 *Feb 25, 2002Nov 4, 2004Daniel DelfosseJoint prosthesisUS20040225362 *May 6, 2003Nov 11, 2004Marc RichelsophArtificial intervertebral discUS20040225363 *Sep 2, 2003Nov 11, 2004Marc RichelsophArtificial intervertebral discUS20040225364 *Nov 3, 2003Nov 11, 2004Marc RichelsophArtificial intervertebral discUS20040225365 *Feb 6, 2004Nov 11, 2004Sdgi Holdings, Inc.Articular disc prosthesis for transforaminal insertionUS20040225366 *Feb 6, 2004Nov 11, 2004Sdgi Holdings, Inc.Articular disc prosthesis for anterior-oblique insertionUS20040243238 *Dec 16, 2003Dec 2, 2004Uri ArninSpinal disc prosthesisUS20040243240 *May 3, 2003Dec 2, 2004Jacques BeaurainIntervertebral disc prosthesis and fitting toolsUS20040249462 *Jun 5, 2004Dec 9, 2004Shih-Shing HuangArtificial intervertebral disc flexibly oriented by spring-reinforced bellowsUS20050033438 *Jun 29, 2004Feb 10, 2005Robert SchultzIntervertebral implantUS20050043803 *Jul 6, 2004Feb 24, 2005Robert SchultzIntervertebral implantUS20060036326 *Sep 2, 2002Feb 16, 2006Mathys Medizinaltechnik AgIntervertebral implant comprising a three-part articulation* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7485145 *Feb 22, 2005Feb 3, 2009Alphatec Spine, IncorporatedArtificial intervertebral disc assemblyUS7503920Jan 5, 2005Mar 17, 2009Tzony SiegalSpinal surgery system and methodUS7575601Apr 27, 2006Aug 18, 2009Warsaw Orthopedic, Inc.Locking expandable implant and methodUS7666226Aug 15, 2006Feb 23, 2010Benvenue Medical, Inc.Spinal tissue distraction devicesUS7666227Feb 23, 2010Benvenue Medical, Inc.Devices for limiting the movement of material introduced between layers of spinal tissueUS7670374Mar 2, 2010Benvenue Medical, Inc.Methods of distracting tissue layers of the human spineUS7670375Aug 15, 2006Mar 2, 2010Benvenue Medical, Inc.Methods for limiting the movement of material introduced between layers of spinal tissueUS7708779May 1, 2006May 4, 2010Warsaw Orthopedic, Inc.Expandable intervertebral spacers and methods of useUS7731753Nov 15, 2005Jun 8, 2010Spinal Kinetics, Inc.Prosthetic intervertebral discsUS7744650May 17, 2006Jun 29, 2010Aesculap AgVertebral body replacement implantUS7758648Jul 20, 2010Warsaw Orthopedic, Inc.Stabilized, adjustable expandable implant and methodUS7776093Aug 17, 2010Blackstone Medical, Inc.Vertebral body replacement apparatus and methodUS7785368Aug 31, 2010Benvenue Medical, Inc.Spinal tissue distraction devicesUS7794501Apr 27, 2006Sep 14, 2010Wasaw Orthopedic, Inc.Expandable intervertebral spacers and methods of useUS7803189Sep 28, 2010Spinal Kinetics, Inc.Prosthetic facet and facet joint replacement deviceUS7815683Oct 16, 2006Oct 19, 2010Warsaw Orthopedic, Inc.Implants with helical supports and methods of use for spacing vertebral membersUS7879096Feb 1, 2011Warsaw Orthopedic, Inc.Centrally driven expandable implantUS7909870Jun 12, 2006Mar 22, 2011Tpl - Kilian KrausHeight-adjustable spinal implant and operating instrument for the implantUS7914581Mar 29, 2011Warsaw Orthopedic, Inc.Expandable implant, instrument, and methodUS7918874Dec 28, 2005Apr 5, 2011Nonlinear Technologies Ltd.Devices for introduction into a body along a substantially straight guide to form a predefined curved configuration, and methods employing sameUS7918889Apr 5, 2011Warsaw Orthopedic, Inc.Expandable spinal prosthetic devices and associated methodsUS7947078 *Jan 9, 2008May 24, 2011Nonlinear Technologies Ltd.Devices for forming curved or closed-loop structuresUS7955391Feb 15, 2010Jun 7, 2011Benvenue Medical, Inc.Methods for limiting the movement of material introduced between layers of spinal tissueUS7963993Feb 15, 2010Jun 21, 2011Benvenue Medical, Inc.Methods of distracting tissue layers of the human spineUS7967864Feb 15, 2010Jun 28, 2011Benvenue Medical, Inc.Spinal tissue distraction devicesUS7967865Feb 15, 2010Jun 28, 2011Benvenue Medical, Inc.Devices for limiting the movement of material introduced between layers of spinal tissueUS7981157Apr 27, 2006Jul 19, 2011Warsaw Orthopedic, Inc.Self-contained expandable implant and methodUS8021424Jan 21, 2009Sep 20, 2011Aesculap AgIntervertebral implantUS8034081Feb 6, 2007Oct 11, 2011CollabComl, LLCInterspinous dynamic stabilization implant and method of implantingUS8057544Aug 15, 2006Nov 15, 2011Benvenue Medical, Inc.Methods of distracting tissue layers of the human spineUS8070817Jun 27, 2007Dec 6, 2011M.O.R.E. Medical Solutions GmbhVertebral implantUS8110004 *Aug 21, 2009Feb 7, 2012The Trustees Of The Stevens Institute Of TechnologyExpandable interbody fusion cage with rotational insertUS8133279Jan 9, 2007Mar 13, 2012Warsaw Orthopedic, Inc.Methods for treating an annulus defect of an intervertebral discUS8142435Feb 19, 2009Mar 27, 2012Aesculap Implant Systems, LlcMulti-functional surgical instrument and method of use for inserting an implant between two bonesUS8142441Mar 27, 2012Aesculap Implant Systems, LlcSurgical instrument and method of use for inserting an implant between two bonesUS8152852 *Dec 19, 2008Apr 10, 2012The University Of ToledoVariable height vertebral body replacement implantUS8157863Jul 16, 2009Apr 17, 2012Warsaw Orthopedic, Inc.Devices, apparatus, and methods for bilateral approach to disc augmentationUS8182537May 22, 2012Aesculap Implant Systems, LlcVertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spineUS8187331Apr 27, 2006May 29, 2012Warsaw Orthopedic, Inc.Expandable vertebral implant and methods of useUS8231681Jun 3, 2011Jul 31, 2012Warsaw OrthopedicSelf-contained expandable implant and methodUS8267939Sep 18, 2012Stryker SpineTool for implanting expandable intervertebral implantUS8267998Sep 18, 2012Kilian KrausOperating instrument for a height-adjustable spinal implantUS8268004Sep 18, 2012Warsaw Orthopedic, Inc.Stabilized, adjustable expandable implant and methodUS8273126Sep 25, 2012Aesculap AgVertebral body replacement implant and instrument for handling the vertebral body replacement implantUS8328871 *Nov 9, 2006Dec 11, 2012Warsaw Orthopedic, Inc.Expanding vertebral body implantUS8337558Dec 25, 2012Aesculap AgVertebral body replacement implantUS8366773Feb 5, 2013Benvenue Medical, Inc.Apparatus and method for treating boneUS8366779Feb 5, 2013Warsaw Orthopedic, Inc.Expandable implant, instrument, and methodUS8372148 *Feb 12, 2013Warsaw Orthpedic, Inc.Expandable intervertebral spacers and methods of useUS8403987Mar 26, 2013Spinal Kinetics Inc.Prosthetic intervertebral discs having compressible core elements bounded by fiber-containing membranesUS8409285 *Nov 14, 2011Apr 2, 2013Cervitech, Inc.Prosthesis for partial replacement of a vertebral bodyUS8430911Dec 12, 2006Apr 30, 2013Spinefrontier IncSpinous process fixation implantUS8454617Jun 4, 2013Benvenue Medical, Inc.Devices for treating the spineUS8535327Mar 16, 2010Sep 17, 2013Benvenue Medical, Inc.Delivery apparatus for use with implantable medical devicesUS8556978Nov 15, 2011Oct 15, 2013Benvenue Medical, Inc.Devices and methods for treating the vertebral bodyUS8568482May 11, 2004Oct 29, 2013Kilian KrausHeight-adjustable implant to be inserted between vertebral bodies and corresponding handling toolUS8574267Dec 12, 2011Nov 5, 2013Linares Medical Devices, LlcAssembleable jack braces for seating and supporting angular processesUS8579979Jul 31, 2012Nov 12, 2013Warsaw Orthopedic, Inc.Expandable intervertebral spacers and methods of useUS8585738May 14, 2012Nov 19, 2013Miguel A. LinaresOne and two piece spinal jack incorporating varying mechanical pivot, hinge and cam lift constructions for establishing a desired spacing between succeeding vertebraeUS8591583Feb 21, 2008Nov 26, 2013Benvenue Medical, Inc.Devices for treating the spineUS8591587May 18, 2012Nov 26, 2013Aesculap Implant Systems, LlcVertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spineUS8603170Jul 31, 2012Dec 10, 2013Stryker SpineExpandable intervertebral implantUS8613758May 14, 2012Dec 24, 2013Linares Medical Devices, LlcTwo piece spinal jack incorporating varying mechanical and fluidic lift mechanisms for establishing a desired spacing between succeeding vertebraeUS8613770 *Jul 19, 2010Dec 24, 2013Wei Lei et al.Artificial cervical vertebrae composite jointUS8617212Dec 12, 2011Dec 31, 2013Linares Medical Devices, LlcInter-vertebral support kit including main insert jack and dual secondary auxiliary support jacks located between succeeding transverse processesUS8623056Oct 22, 2009Jan 7, 2014Linares Medical Devices, LlcSupport insert associated with spinal vertebraeUS8657882Apr 24, 2006Feb 25, 2014Warsaw Orthopedic, Inc.Expandable intervertebral devices and methods of useUS8690950May 23, 2013Apr 8, 2014Aesculap Implant Systems, LlcVertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spineUS8702719 *Dec 6, 2011Apr 22, 2014Aesculap Implant Systems, LlcSurgical instrument and method of use for inserting an implant between two bonesUS8734519Apr 12, 2007May 27, 2014Spinalmotion, Inc.Posterior spinal device and methodUS8758408Dec 13, 2006Jun 24, 2014Spinefrontier IncSpinous process fixation implantUS8801787Jun 16, 2011Aug 12, 2014Benvenue Medical, Inc.Methods of distracting tissue layers of the human spineUS8801792Jul 22, 2010Aug 12, 2014Spinalmotion, Inc.Posterio spinal device and methodUS8808376Mar 25, 2009Aug 19, 2014Benvenue Medical, Inc.Intravertebral implantsUS8814873Jun 22, 2012Aug 26, 2014Benvenue Medical, Inc.Devices and methods for treating bone tissueUS8870959 *Nov 5, 2010Oct 28, 2014Spine21 Ltd.Spinal fusion cage having post-operative adjustable dimensionsUS8882836Dec 18, 2012Nov 11, 2014Benvenue Medical, Inc.Apparatus and method for treating boneUS8961609Sep 26, 2013Feb 24, 2015Benvenue Medical, Inc.Devices for distracting tissue layers of the human spineUS8968408Apr 24, 2013Mar 3, 2015Benvenue Medical, Inc.Devices for treating the spineUS8979929Jun 16, 2011Mar 17, 2015Benvenue Medical, Inc.Spinal tissue distraction devicesUS9034046Nov 17, 2014May 19, 2015Aesculap Implant Systems, LlcVertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spineUS9044338Mar 12, 2013Jun 2, 2015Benvenue Medical, Inc.Spinal tissue distraction devicesUS9066808Feb 20, 2009Jun 30, 2015Benvenue Medical, Inc.Method of interdigitating flowable material with bone tissueUS9078769 *Feb 2, 2011Jul 14, 2015Azadeh FarinSpine surgery deviceUS9119725Dec 1, 2009Sep 1, 2015DePuy Synthes Products, Inc.Expandable vertebral body replacement system and methodUS9237955 *Jul 1, 2009Jan 19, 2016Ceramtec GmbhIntervertebral disc endoprosthesisUS9259326Nov 21, 2014Feb 16, 2016Benvenue Medical, Inc.Spinal tissue distraction devicesUS9278007Sep 26, 2006Mar 8, 2016Spinal Kinetics, Inc.Prosthetic intervertebral discs having cast end plates and methods for making and using themUS9314252Aug 15, 2014Apr 19, 2016Benvenue Medical, Inc.Devices and methods for treating bone tissueUS9320610Aug 16, 2012Apr 26, 2016Stryker European Holdings I, LlcExpandable implantUS9326866Nov 8, 2013May 3, 2016Benvenue Medical, Inc.Devices for treating the spineUS9364336Sep 27, 2006Jun 14, 2016Spinal Kinetics Inc.Prosthetic intervertebral discsUS9381098Sep 28, 2006Jul 5, 2016Spinal Kinetics, Inc.Tool systems for implanting prosthetic intervertebral discsUS20050154459 *Oct 19, 2004Jul 14, 2005Howard WolekVertebral body replacement apparatus and methodUS20050187625 *Jan 7, 2005Aug 25, 2005Howard WolekVertebral body replacement apparatus and methodUS20050273169 *Feb 22, 2005Dec 8, 2005Thomas PurcellArtificial intervertebral disc assemblyUS20060036273 *Jan 5, 2005Feb 16, 2006Tzony SiegalSpinal surgery system and methodUS20060293755 *May 17, 2006Dec 28, 2006Aesculap Ag & Co.KgVertebral body replacement implantUS20070028710 *May 11, 2004Feb 8, 2007Kilian KrausHeight-adjustable implant to be inserted between vertebral bodies and corresponding handling toolUS20070050032 *Sep 1, 2005Mar 1, 2007Spinal Kinetics, Inc.Prosthetic intervertebral discsUS20070055265 *Aug 15, 2006Mar 8, 2007Laurent SchallerDevices For Limiting the Movement Of Material Introduced Between Layers Of Spinal TissueUS20070055272 *Aug 15, 2006Mar 8, 2007Laurent SchallerSpinal Tissue Distraction DevicesUS20070055273 *Aug 15, 2006Mar 8, 2007Laurent SchallerMethods of Distracting Tissue Layers of the Human SpineUS20070055275 *Aug 15, 2006Mar 8, 2007Laurent SchallerMethods for Limiting the Movement of Material Introduced Between Layers of Spinal TissueUS20070083200 *Sep 23, 2005Apr 12, 2007Gittings Darin CSpinal stabilization systems and methodsUS20070123986 *Aug 15, 2006May 31, 2007Laurent SchallerMethods of Distracting Tissue Layers of the Human SpineUS20070162001 *Dec 13, 2006Jul 12, 2007Spinefrontier LlsSpinous process fixation implantUS20070167947 *Sep 29, 2006Jul 19, 2007Gittings Darin CSpinal stabilization deviceUS20070168033 *Sep 26, 2006Jul 19, 2007Kim Daniel HProsthetic intervertebral discs having substantially rigid end plates and fibers between those end platesUS20070168035 *Sep 29, 2006Jul 19, 2007Koske Nicholas CProsthetic facet and facet joint replacement deviceUS20070179500 *Dec 13, 2006Aug 2, 2007Spinefrontier LlsSpinous process fixation implantUS20070203579 *Feb 27, 2006Aug 30, 2007Sdgi Holdings, Inc.Prosthetic device for spinal arthroplastyUS20070233082 *Dec 12, 2006Oct 4, 2007Spinefrontier LlsSpinous process fixation implantUS20070233245 *Mar 31, 2006Oct 4, 2007Sdgi Holdings, Inc.Methods and instruments for delivering intervertebral devicesUS20070250171 *Apr 24, 2006Oct 25, 2007Sdgi Holdings, Inc.Expandable intervertebral devices and methods of useUS20070255286 *Apr 27, 2006Nov 1, 2007Sdgi Holdings, Inc.Devices, apparatus, and methods for improved disc augmentationUS20070255406 *Apr 27, 2006Nov 1, 2007Sdgi Holdings, Inc.Devices, apparatus, and methods for bilateral approach to disc augmentationUS20070255413 *Apr 27, 2006Nov 1, 2007Sdgi Holdings, Inc.Expandable intervertebral spacers and methods of useUS20070255415 *May 1, 2006Nov 1, 2007Sdgi Holdings, Inc.Expandable intervertebral spacers and methods of useUS20070255421 *Apr 27, 2006Nov 1, 2007Sdgi Holdings, Inc.Locking expandable implant and methodUS20070270960 *Apr 24, 2006Nov 22, 2007Sdgi Holdings, Inc.Extendable anchor in a vertebral implant and methods of useUS20070270964 *Apr 27, 2006Nov 22, 2007Sdgi Holdings, Inc.Expandable vertebral implant and methods of useUS20070282449 *Apr 12, 2007Dec 6, 2007Spinalmotion, Inc.Posterior spinal device and methodUS20080058931 *Jul 21, 2006Mar 6, 2008John WhiteExpandable vertebral implant and methods of useUS20080082169 *Sep 28, 2006Apr 3, 2008Gittings Darin CTool systems for implanting prosthetic intervertebral discsUS20080099785 *Sep 7, 2007May 1, 2008Amberwave Systems CoporationDefect Reduction Using Aspect Ratio TrappingUS20080103599 *Jan 1, 2008May 1, 2008Spinal Kinetics, Inc.Prosthetic Intervertebral Discs Having Substantially Rigid End Plates and Fibers Between Those End PlatesUS20080108990 *Nov 2, 2006May 8, 2008St. Francis Medical Technologies, Inc.Interspinous process implant having a fixed wing and a deployable wing and method of implantationUS20080114467 *Nov 9, 2006May 15, 2008Warsaw Orthopedic, Inc.Expanding Vertebral Body ImplantUS20080154272 *Jan 25, 2008Jun 26, 2008Laurent SchallerApparatus and Method for Treating BoneUS20080208255 *Dec 28, 2005Aug 28, 2008Tzony SiegalDevices For Introduction Into A Body Via A Substantially Straight Conduit To Form A Predefined Curved Configuration, And Methods Employing SameUS20080234687 *Feb 21, 2008Sep 25, 2008Laurent SchallerDevices for treating the spineUS20080234827 *Feb 21, 2008Sep 25, 2008Laurent SchallerDevices for treating the spineUS20090082872 *Sep 19, 2008Mar 26, 2009Aesculap AgIntervertebral implantUS20090099569 *Sep 29, 2008Apr 16, 2009Aesculap AgIntervertebral implantUS20090112324 *Oct 30, 2007Apr 30, 2009Biospine, LlcVertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spineUS20090112325 *Oct 30, 2007Apr 30, 2009Biospine, LlcFootplate member and a method for use in a vertebral body replacement deviceUS20090138083 *Dec 19, 2008May 28, 2009Ashok BiyaniVariable height vertebral body replacement implantUS20090182386 *Jul 16, 2009Laurent SchallerSpinal tissue distraction devicesUS20090192611 *Jan 22, 2009Jul 30, 2009Aesculap AgVertebral body replacement implant and instrument for handling the vertebral body replacement implantUS20090192612 *Jul 30, 2009Aesculap AgVertebral body replacement implantUS20090192614 *Jul 30, 2009Aesculap AgIntervertebral implantUS20090222096 *Feb 28, 2008Sep 3, 2009Warsaw Orthopedic, Inc.Multi-compartment expandable devices and methods for intervertebral disc expansion and augmentationUS20090275913 *Nov 5, 2009Warsaw Orthopedic, Inc.Devices, apparatus, and methods for bilateral approach to disc augmentationUS20100049324 *Feb 25, 2010Antonio ValdevitExpandable interbody fusion cage with rotational insertUS20100100100 *Oct 16, 2008Apr 22, 2010Daniel RefaiSurgical instrument and method of use for inserting an implant between two bonesUS20100106190 *Oct 22, 2009Apr 29, 2010Linares Medical Devices, LlcSupport insert associated with spinal vertebraeUS20100211119 *Feb 19, 2009Aug 19, 2010Daniel RefaiMulti-functional surgical instrument and method of use for inserting an implant between two bonesUS20100280614 *Nov 4, 2010Warsaw Orthopedic, Inc.Stabilized, Adjustable Expandable Implant and MethodUS20110087328 *Dec 16, 2010Apr 14, 2011Warsaw Orthopedic, Inc.Centrally driven expandable implant and methodUS20110093072 *Jan 9, 2008Apr 21, 2011Non-Linear Technologies LtdDevices for forming curved or closed-loop structuresUS20110172779 *Jul 14, 2011Warsaw Orthopedic, Inc.Expandable Implant, Instrument, and MethodUS20110218630 *Jul 1, 2009Sep 8, 2011Christine NiessIntervertebral disc endoprosthesisUS20110238182 *Sep 29, 2011Warsaw Orthopedic, Inc.Expandable Intervertebral Spacers and Methods of UseUS20120016476 *Jan 19, 2012Warsaw Orthopedic, Inc.Intervertebral implant with a hinge end capUS20120059471 *Nov 14, 2011Mar 8, 2012Cervitech, Inc.Prosthesis for partial replacement of a vertebral bodyUS20120197400 *Jul 19, 2010Aug 2, 2012Wei LeiArtificial cervical vertebrae composite jointUS20120277875 *Nov 5, 2010Nov 1, 2012Spine21 Ltd.Spinal fusion cage having post-operative adjustable dimensionsUS20120296433 *Feb 2, 2011Nov 22, 2012Azadeh FarinSpine surgery deviceUS20140012387 *Sep 11, 2013Jan 9, 2014Paul GlazerSpinal spacer devices, tools, and methodsUS20150265422 *Jun 4, 2015Sep 24, 2015Nlt Spine Ltd.Laterally Deflectable ImplantUSD626233Oct 26, 2010Stryker SpineExpandable intervertebral implantDE102008006491A1Jan 29, 2008Aug 20, 2009Aesculap AgWirbelk�rperersatzimplantat und Werkzeug zur Handhabung des Wirbelk�rperersatzimplantatesDE102008006491B4 *Jan 29, 2008Jun 11, 2015Aesculap AgWirbelk�rperersatzimplantat und Werkzeug zur Handhabung des Wirbelk�rperersatzimplantatesEP1968501A2 *Dec 13, 2006Sep 17, 2008Spinefrontier LlsSpinous process fixation implantEP2004074A2 *Feb 28, 2007Dec 24, 2008Spinefrontier LlsSpinous process fixation deviceEP2007322A2 *Apr 12, 2007Dec 31, 2008Spinalmotion Inc.Posterior spinal device and methodWO2007028098A3 *Aug 31, 2006Jun 28, 2007Darin C GittingsProsthetic intervertebral discsWO2007070819A2Dec 13, 2006Jun 21, 2007Spinefrontier LlsSpinous process fixation implantWO2007070819A3 *Dec 13, 2006Apr 10, 2008Kingsley Richard ChinSpinous process fixation implantWO2007109402A2Feb 28, 2007Sep 27, 2007Spinefrontier LlsSpinous process fixation deviceWO2007127583A1 *Apr 4, 2007Nov 8, 2007Warsaw Orthopedic, Inc.Expanadable intervertebral spacers and methods of useWO2008084479A2 *Jan 9, 2008Jul 17, 2008Nonlinear Technologies Ltd.Devices for forming curved or closed-loop structuresWO2008084479A3 *Jan 9, 2008Nov 6, 2008Nonlinear Technologies LtdDevices for forming curved or closed-loop structuresWO2010074700A1 *Dec 1, 2009Jul 1, 2010Synthes Usa, LlcExpandable vertebral body replacement system and method* Cited by examinerClassifications U.S. Classification623/17.15, 623/17.12International ClassificationA61F2/02, A61F2/00, A61F2/44, A61F2/30Cooperative ClassificationA61F2002/30884, A61F2002/30879, A61F2220/0091, A61F2002/30369, A61F2002/3055, A61F2002/30841, A61F2002/30525, A61F2/441, A61F2002/30365, A61F2002/484, A61F2002/30604, A61F2002/30405, A61F2002/30471, A61F2002/30616, A61F2002/305, A61F2002/30507, A61F2002/30187, A61F2310/00179, A61F2220/0033, A61F2230/0034, A61F2002/30538, A61F2002/30131, A61F2230/0013, A61F2002/30584, A61F2250/0006, A61F2002/30878, A61F2002/30571, A61F2/4425, A61F2/44, A61F2220/0025, A61F2002/30579, A61F2002/30395European ClassificationA61F2/44, A61F2/44D2Legal EventsDateCodeEventDescriptionNov 1, 2004ASAssignmentOwner name: AESCULAP AG & CO. KG, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHULTZ, ROBERT;BEGER, JENS;LINDNER, STEPHAN;AND OTHERS;REEL/FRAME:015938/0770;SIGNING DATES FROM 20041006 TO 20041011RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services