Source: http://www.google.com/patents/US20050125062?dq=3140553
Timestamp: 2016-07-24 23:20:17
Document Index: 384578030

Matched Legal Cases: ['arts 10', 'arts 10', 'arts 10', 'arts 10', 'art 10', 'art 10', 'art 20', 'art 20', 'art 10', 'art 20', 'art 10', 'art 20', 'art 10', 'art 20', 'art 10', 'art 20', 'art 10', 'art 20', 'art 10', 'arts 110']

Patent US20050125062 - Height-adjustable intervertebrae implant - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsAn intervertebral implant for insertion between two vertebrae is disclosed. A first part has a first contact surface extending between its two ends a first guide surface extending out from the first contact surface. A second part has a second contact surface extending between its ends, and a second guide...http://www.google.com/patents/US20050125062?utm_source=gb-gplus-sharePatent US20050125062 - Height-adjustable intervertebrae implantAdvanced Patent SearchPublication numberUS20050125062 A1Publication typeApplicationApplication numberUS 11/009,224Publication dateJun 9, 2005Filing dateDec 9, 2004Priority dateDec 9, 2003Also published asDE502004010737D1, EP1541096A1, EP1541096B1, US7618458, US20100049325Publication number009224, 11009224, US 2005/0125062 A1, US 2005/125062 A1, US 20050125062 A1, US 20050125062A1, US 2005125062 A1, US 2005125062A1, US-A1-20050125062, US-A1-2005125062, US2005/0125062A1, US2005/125062A1, US20050125062 A1, US20050125062A1, US2005125062 A1, US2005125062A1InventorsLutz Biedermann, Wilfried MatthisOriginal AssigneeLutz Biedermann, Wilfried MatthisExport CitationBiBTeX, EndNote, RefManPatent Citations (20), Referenced by (70), Classifications (27), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetHeight-adjustable intervertebrae implant
DETAILED DESCRIPTION OF THE INVENTION [0037] An intervertebral implant according to one embodiment of the present invention is illustrated with reference to FIGS. 1 to 6. As is evident from FIG. 1 and FIG. 2, intervertebral implant 1 consists of two curved parts 10, 20, which are provided to be in the shape of an arc, curve or segment of a helix in this particular embodiment. [0038] As is best seen in FIG. 6, the two parts 10, 20 are provided as wedge-like sections with opposite tapers, each of which has a thick end 14, 24 that forms a base end of the wedge and a tapered end 13, 23 opposite to the thick end. In this arrangement, the two parts 10, 20 can be connected together by contacting each other at their wedge surfaces 12, 22 using the guide surfaces provided by ridge 15 and groove 25. Thus, reference generally will be made to these wedge surfaces as “contact surfaces” 12, 22, hereinafter. Thus, seen from an elevational view (such as FIG. 6), when the two parts are fully engaged, intervertebral implant 1 is approximately rectangular in shape. By shifting the two parts 10, 20 relative to each other along their contact surfaces 12, 22, the total height of intervertebral implant 1 can be adjusted. [0039] As is best seen in FIG. 3, first part 10 comprises a first contact surface 12 and a first base surface 11 opposite to contact surface 12. First contact surface 12 is provided preferably in the form of a section of an arc, curve or shaped like a segment of a helix. In this embodiment, a ridge 15 with a dovetail-shaped cross-section is provided on first contact surface 12 such that it protrudes at a right angle from the surface (i.e. in a direction perpendicular to the plane of the surface). Ridge 15 can be in the form of an arc, curve or shaped like a segment of a helix. Ridge 15 extends from the second end 14 of first part 10, which forms the base of the wedge, preferably to a distance from the tapered first end 13. [0040] As is best seen in FIG. 4, second part 20 includes a second contact surface 22 and a second base surface 21 opposite to second contact surface 22. Second contact surface 22 also is in the form of an arc, curve or a segment of a helix, provided that it is complementary to that of the first contact surface 12 and matingly cooperates with the first contact surface. A groove 25 with a dovetailed cross-section that corresponds to the cross-section of ridge 15 is provided in second contact surface 22. Groove 25 also is shaped like an arc, curve or segment of a helix. Groove 25 extends from the tapered first end 23 of second part 20 preferably to a distance from the second end 24, which forms the base end of the wedge. [0041] Alternatively to the ridge and groove shown any type of a positive structure protruding from the first contact surface which cooperates with a corresponding negative structure or recess in the second contact surface and which can slide relative to the second contact surface can be used. Positive and negative structures can be interchanged, so that the positive structure is provided on the second contact surface and the negative structure is provided in the first contact surface. [0042] The first base surface 11 and the second base surface 21 may also be provided with groove-shaped recesses, which also are circular arc-shaped in this embodiment when viewed in a top view. Any type or shape of grooved recess may be used in the alternative. [0043] In order to adjust the height of intervertebral implant 1 as desired, first part 10 and second part 20 are shifted relative to each other in a sliding motion along their contact surfaces 12, 22 contacting between a first position A (see FIGS. 1 and 5) and a second position B (see FIGS. 2 and 6), whereby ridge 15 is guided within groove 25. The second position B is reached once ridge end 16 pushes against groove end 26 forming a terminal stop. In this embodiment, groove end 26 prevents the parts from being pushed beyond the terminal stop position. [0044] As is best seen in FIGS. 5 and 6, the inclination of contact surfaces 12, 22 with respect to base surfaces 11, 21 causes intervertebral implant 1, after being pushed together into the second position B to be of a height Y that exceeds the height X in the first position A before the parts are pushed together. Therefore, it is possible to adjust the height of intervertebral implant 1 between the two limits X and Y by means of a gliding motion of first part 10 and second part 20 relative to each other. [0045] In application, for the insertion of intervertebral implant 1 between two vertebrae, the desired height is obtained by moving the first part 10 and second part 20 relative to each other with the contact surfaces and guide surfaces in contact. Once the desired height is obtained the intervertebral implant 1 is inserted between the vertebrae. The vertebrae are then fixed with the implant positioned between them. [0046] FIG. 7 shows a force F acting upon the intervertebral implant 1 after its insertion between the vertebrae. In order to prevent force F from moving the first part 10 inadvertently with respect to the second part 20, the inclination angle α of contact surfaces 12, 22, defining the angle of the contact surface 12, 22 of each part relative to the base surface 11, 21 preferably is determined to result in a self-locking mechanism. The angle is dependent on the material used to form the actual implant and the frictional surface properties of contact surfaces 12, 22 to result in a self-locking mechanism so that the following condition α<ρo (whereby ρo=arc tan μo) is essentially satisfied. In the above equation ρo is the friction angle and μo is the static friction coefficient of the material. [0047] Preferably the intervertebral implant is formed from titanium. However, alternatively, other body-compatible metals or alloys or polymer materials including those well known to those skilled in the art can be used. Examples of suitable polymer materials are polyetheretherketone(“PEEK”) or polytetrafluoroethylene (“PTFE”) or. The polymeric material can be reinforced with fibers, including carbon fibers. [0048] In the embodiment shown in FIG. 8, the external surfaces of first part 10 and/or second part 20 can include recesses 31 formed as boreholes or orifices. The recessesallow for the in-growth of bone material into intervertebral implant 1. [0049] In yet another embodiment, ridge 15 and groove 25 are provided such that they each extend from first end 13, 23 of the corresponding part 10, 20 to the corresponding second end 14, 24. This arrangement allows the two parts to be shifted relative to each other beyond second position B and, thus, provides for the height in the assembled state to have a larger adjustable range. [0050] Other modifications within the spirit and scope of the invention also can be made. For example, the cross section of ridge and groove can be T-shaped, rectangular or square in shape, or can be any alternative geometric shape to provide a substantially mating connection for the guide surfaces. FIGS. 9 a) to e) show examples of cross sections, like dove-tail shape (FIG. 9 a), T-shape (FIG. 9 b), rectangular shape (FIG. 9 c) and square shape (FIG. 9 d) or semicircular shape (FIG. 9 e). Further, the cross sectional shape of the groove does not have to be exactly the same as that of the ridge, as long as the grove cross section receives the ridge cross section in a manner that provides a mating connection to enable the two parts to slide relative to each other. In a further modification, the connection between ridge and groove is not provided as a section of a screw or helical line, but is provided to be straight. [0051] In yet a further modification, at least one of the two parts is hollow in the interior and comprises orifices in the base surface or the side wall to allow filling with bone material and/or ingrowth of bone material. [0052] In a further modification, the contact surfaces of the first and/or second part are roughened and/or milled to be step-like as shown in FIG. 10. [0053] In a yet another modification, the outer shape (top view) of the first and/or second part are each straight and not shaped as an arc, curve or segment of a helix. It is possible to make the first and second part exactly the same, wherein the part has both a ridge and a groove. Alternatively the first and second contact surfaces can be shaped like an arc, curve or segment of a helix. Thus, the implant can be made from two like parts. [0054] FIG. 11 ashows an intervertebral implant 100 comprising two straight, wedge-shaped parts 110, 120 in a first state (A) in which the two parts are minimally engaged. Like in the first embodiment, the parts have corresponding ridge 115 and groove 125 and guide surfaces 112, 122. FIG. 11 b shows the implant in a state (B) where the two parts are fully engaged. [0055] In yet a further modification, the base surfaces of the first part and/or second part are provided without grooves. [0056] The embodiments described above and shown herein are illustrative and not restrictive. The scope of the invention is indicated by the claims rather than by the foregoing description and attached drawings. The invention may be embodied in other specific forms without departing from the spirit of the invention. Accordingly, these and other changes which come within the scope of the claims are intended to be embraced therein. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5865848 *Sep 12, 1997Feb 2, 1999Artifex, Ltd.Dynamic intervertebral spacer and method of useUS6126689 *Jul 9, 1999Oct 3, 2000Expanding Concepts, L.L.C.Collapsible and expandable interbody fusion deviceUS6159244 *Jul 30, 1999Dec 12, 2000Suddaby; LoubertExpandable variable angle intervertebral fusion implantUS6176882 *Feb 19, 1999Jan 23, 2001Biedermann Motech GmbhIntervertebral implantUS6193757 *Oct 29, 1998Feb 27, 2001Sdgi Holdings, Inc.Expandable intervertebral spacersUS6425919 *Jun 30, 2000Jul 30, 2002Intrinsic Orthopedics, Inc.Devices and methods of vertebral disc augmentationUS6491724 *Dec 3, 1999Dec 10, 2002Bret FerreeSpinal fusion cage with lordosis correctionUS6524341 *Apr 13, 2001Feb 25, 2003Synthes (Usa)Telescopic vertebral prosthesisUS6648917 *Oct 17, 2001Nov 18, 2003Medicinelodge, Inc.Adjustable bone fusion implant and methodUS6679915 *Feb 28, 2000Jan 20, 2004Sdgi Holdings, Inc.Articulating spinal implantUS7044971 *Aug 30, 2002May 16, 2006Loubert SuddabyLordotic fusion implantUS7094257 *Oct 14, 2003Aug 22, 2006Zimmer Spine, Inc.Expandable intervertebral implant cageUS20020107570 *Dec 8, 2000Aug 8, 2002Sybert Daryl R.Biocompatible osteogenic band for repair of spinal disordersUS20020128716 *Feb 7, 2002Sep 12, 2002Howard CohenSpinal surgical prosthesisUS20030171813 *Mar 5, 2002Sep 11, 2003P. Douglas KiesterMethod and apparatus for providing an expandable spinal fusion cageUS20040002764 *Apr 30, 2003Jan 1, 2004Raymedica, Inc.Self-transitioning spinal disc anulus occlusion device and method of useUS20040133281 *Dec 15, 2003Jul 8, 2004Khandkar Ashok C.Total disc implantUS20040158328 *Jan 7, 2004Aug 12, 2004Sdgi Holdings, Inc.Mobile bearing articulating discUS20050107878 *Dec 5, 2001May 19, 2005Stryker SpineSpinal intervertebral implant adjustable in situUS20060009850 *Dec 17, 2002Jan 12, 2006Mathys Medizinaltechnik AgIntervertebral implant* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7771456 *Feb 8, 2007Aug 10, 2010Synthes Usa, LlcInterspinous implantUS7875078 *Jan 25, 2011Spine Wave, Inc.Expandable interbody fusion deviceUS7909872 *Mar 22, 2011Zipnick Richard IMinimally invasive apparatus to manipulate and revitalize spinal column discUS7931688 *Aug 25, 2005Apr 26, 2011Spine Wave, Inc.Expandable interbody fusion deviceUS8002837Aug 23, 2011Pioneer Surgical TechnologySpinal stabilization device and methodsUS8012156 *Nov 17, 2006Sep 6, 2011Traiber, S.A.Intersomatic cage, clamp for manipulating it and procedure for inserting the intersomatic cage between vertebraeUS8083776Jun 28, 2006Dec 27, 2011Traiber, S.A.Vertebral fixation device and tool for assembling the deviceUS8128700 *Sep 12, 2007Mar 6, 2012Synthes Usa, LlcAllograft intervertebral implant and method of manufacturing the sameUS8137404Mar 28, 2006Mar 20, 2012Depuy Spine, Inc.Artificial disc replacement using posterior approachUS8282641Oct 9, 2012Depuy Spine, Inc.Methods and instrumentation for disc replacementUS8337562Jan 12, 2012Dec 25, 2012Spine Wave, Inc.Device for distracting body tissueUS8343189Jan 1, 2013Zyga Technology, Inc.Method and apparatus for facet joint stabilizationUS8366777Feb 5, 2013Biedermann Technologies Gmbh & Co. KgExpandable intervertebral implantUS8394125Mar 12, 2013Zyga Technology, Inc.Systems and methods for facet joint treatmentUS8460389Jun 11, 2013DePuy Synthes Products, LLCAllograft intervertebral implant and method of manufacturing the sameUS8574300Mar 5, 2009Nov 5, 2013DePuy Synthes Products, LLCExpandable interbody spacer deviceUS8579980Oct 2, 2012Nov 12, 2013DePuy Synthes Products, LLCAllograft intervertebral implant and method of manufacturing the sameUS8623091 *Jun 28, 2011Jan 7, 2014DePuy Synthes Products, LLCDistractible intervertebral implantUS8641767Apr 22, 2011Feb 4, 2014Spine Wave, Inc.Expandable interbody fusion deviceUS8663293Apr 11, 2011Mar 4, 2014Zyga Technology, Inc.Systems and methods for facet joint treatmentUS8672976Feb 6, 2008Mar 18, 2014Pioneer Surgical Technology, Inc.Intervertebral implant devices and methods for insertion thereofUS8696707 *Mar 7, 2006Apr 15, 2014Zyga Technology, Inc.Facet joint stabilizationUS8702798Dec 31, 2012Apr 22, 2014Biedermann Technologies Gmbh & Co. KgExpandable intervertebral implantUS8715352Dec 14, 2006May 6, 2014Depuy Spine, Inc.Buckling disc replacementUS8870957Mar 4, 2009Oct 28, 2014Amendia, Inc.Implant for mammalian bony segment stabilizationUS8900307 *Jun 26, 2007Dec 2, 2014DePuy Synthes Products, LLCHighly lordosed fusion cageUS8900309 *Aug 31, 2011Dec 2, 2014Meditech Spine, LlcSpinal implantsUS8926701Oct 9, 2013Jan 6, 2015DePuy Synthes Products, LLCAllograft intervertebral implant and method of manufacturing the sameUS8940022 *Jan 19, 2007Jan 27, 2015Flexuspine, Inc.Artificial functional spinal unit system and method for useUS9017389Mar 11, 2013Apr 28, 2015Zyga Technology, Inc.Methods for facet joint treatmentUS9066811 *Jan 19, 2007Jun 30, 2015Flexuspine, Inc.Artificial functional spinal unit system and method for useUS9095446Jan 23, 2014Aug 4, 2015Spine Wave, Inc.Expandable interbody fusion deviceUS9149364Sep 13, 2013Oct 6, 2015DePuy Synthes Products, Inc.Expandable interbody spacer deviceUS9168152 *Dec 27, 2011Oct 27, 2015Nuvasive, Inc.Implants and methods for spinal fusionUS9192484Jul 24, 2014Nov 24, 2015Spine Wave, Inc.Expandable interbody fusion deviceUS9233006Nov 15, 2012Jan 12, 2016Zyga Technology, Inc.Systems and methods for facet joint treatmentUS9283089 *Apr 5, 2012Mar 15, 2016Warsaw Orthopedic, Inc.Interbody bone implant deviceUS9283092Jan 29, 2015Mar 15, 2016Nlt Spine Ltd.Laterally deflectable implantUS9295562Sep 20, 2013Mar 29, 2016DePuy Synthes Products, Inc.Expandable intervertebral implant and associated method of manufacturing the sameUS9314277Aug 21, 2013Apr 19, 2016Zyga Technology, Inc.Systems and methods for facet joint treatmentUS9320615Dec 30, 2013Apr 26, 2016DePuy Synthes Products, Inc.Distractible intervertebral implantUS20050177245 *Feb 7, 2005Aug 11, 2005Leatherbury Neil C.Absorbable orthopedic implantsUS20060058807 *Aug 25, 2005Mar 16, 2006Michael LandryExpandable interbody fusion deviceUS20060058880 *Aug 25, 2005Mar 16, 2006Steve WysockiExpandable interbody fusion deviceUS20060223639 *Dec 15, 2005Oct 5, 2006Aruze Corp.Game chipUS20060235391 *Mar 7, 2006Oct 19, 2006Sutterlin Chester IiiFacet joint stabilizationUS20060264939 *Mar 17, 2006Nov 23, 2006St. Francis Medical Technologies, Inc.Interspinous process implant with slide-in distraction piece and method of implantationUS20070191959 *Feb 8, 2007Aug 16, 2007Stephan HartmannIntervertebral implantUS20070233244 *Mar 28, 2006Oct 4, 2007Depuy Spine, Inc.Artificial Disc Replacement Using Posterior ApproachUS20070233261 *Mar 28, 2006Oct 4, 2007Depuy Spine, Inc.Artificial Disc Replacement Using Posterior ApproachUS20080082173 *Sep 12, 2007Apr 3, 2008Delurio Robert JAllograft intervertebral implant and method of manufacturing the sameUS20080091269 *May 21, 2007Apr 17, 2008Zipnick Richard IMinimally invasive apparatus to manipulate and revitalize spinal column discUS20080119935 *Nov 17, 2006May 22, 2008Luis Marquez AlvarezIntersomatic cage, clamp for manipulating it and procedure for inserting the intersomatic cage between vertebraeUS20080147191 *Dec 14, 2006Jun 19, 2008Depuy Spine, Inc.Buckling disc replacementUS20080208344 *Feb 6, 2008Aug 28, 2008Kilpela Thomas SIntervertebral Implant Devices and Methods for Insertion ThereofUS20080234741 *Jan 19, 2007Sep 25, 2008Landry Michael EArtificial functional spinal unit system and method for useUS20080234823 *Jan 19, 2007Sep 25, 2008Landry Michael EArtificial functional spinal unit system and method for useUS20090005870 *Jun 26, 2007Jan 1, 2009John Riley HawkinsHighly Lordosed Fusion CageUS20090093882 *Oct 9, 2007Apr 9, 2009Oh YounghoonSliding interbody deviceUS20100228296 *Mar 4, 2009Sep 9, 2010Robert Tod VraneyImplant for mammalian bony segment stabilizationUS20110015747 *Mar 5, 2009Jan 20, 2011Mcmanus JoshuaExpandable interbody spacer deviceUS20110213465 *Sep 1, 2011Spine Wave, Inc.Expandable interbody fusion deviceUS20120071978 *Jun 28, 2011Mar 22, 2012Jann-Paul SuedkampDistractible intervertebral implantUS20120078370 *Mar 29, 2012James Stephen BSpinal implantsUS20120101582 *Dec 27, 2011Apr 26, 2012Nuvasive, Inc.Implants and Methods for Spinal FusionUS20130268075 *Apr 5, 2012Oct 10, 2013Warsaw Orthopedic, Inc.Interbody bone implant deviceUS20150045894 *Oct 15, 2014Feb 12, 2015DePuy Synthes Products, LLCHighly Lordosed Fusion CageUSD733303 *Dec 11, 2012Jun 30, 2015Nuvasive, Inc.Intervertebral implantEP1925272A1Nov 23, 2006May 28, 2008BIEDERMANN MOTECH GmbHExpandable intervertebral implantWO2015136484A1 *Mar 12, 2015Sep 17, 2015Nlt Spine LtdAdjustable arcuate implant* Cited by examinerClassifications U.S. Classification623/17.11International ClassificationA61B17/70, A61F2/44, A61F2/02, A61F2/30, A61B17/56, A61F2/00Cooperative ClassificationA61F2002/30556, A61F2/442, A61F2230/0013, A61F2002/30892, A61F2230/0063, A61F2002/30604, A61F2002/30131, A61F2250/0009, A61F2002/30785, A61F2002/30879, A61F2002/30308, A61F2002/304, A61F2002/30904, A61F2002/3055, A61F2002/30387, A61F2310/00023, A61F2220/0025, A61F2/30965, A61F2/4465European ClassificationA61F2/44DLegal EventsDateCodeEventDescriptionDec 9, 2004ASAssignmentOwner name: BIEDERMANN MOTECH GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BIEDERMANN, LUTZ;MATTHIS, WILFRIED;REEL/FRAME:016095/0287Effective date: 20041006Jul 20, 2005ASAssignmentOwner name: BIEDERMANN MOTECH GMBH, GERMANYFree format text: CORRECTIVE ASSIGNMENT TO CORRECT THE STREET ADDRESS OF ASSIGNEE AND EXECUTION DATE OF ASSIGNOR PREVIOUSLY RECORDED ON REEL 016095 FRAME 0287;ASSIGNORS:BIEDERMANN, LUTZ;MATTHIS, WILFRIED;REEL/FRAME:016285/0786;SIGNING DATES FROM 20040921 TO 20041006Oct 26, 2010CCCertificate of correctionJan 26, 2012ASAssignmentOwner name: BIEDERMANN MOTECH GMBH & CO. KG, GERMANYFree format text: CHANGE OF LEGAL FORM;ASSIGNOR:BIEDERMANN MOTECH GMBH;REEL/FRAME:027603/0504Effective date: 20090720Mar 16, 2012ASAssignmentOwner name: BIEDERMANN TECHNOLOGIES GMBH & CO. KG, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BIEDERMANN MOTECH GMBH & CO. KG;REEL/FRAME:027873/0551Effective date: 20120308Mar 12, 2013FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services