DE3132520A1 - Spondylodesis stabiliser - Google Patents

Spondylodesis stabiliser

Info

Publication number
DE3132520A1
DE3132520A1 DE19813132520 DE3132520A DE3132520A1 DE 3132520 A1 DE3132520 A1 DE 3132520A1 DE 19813132520 DE19813132520 DE 19813132520 DE 3132520 A DE3132520 A DE 3132520A DE 3132520 A1 DE3132520 A1 DE 3132520A1
Authority
DE
Germany
Prior art keywords
vertebrae
tabs
connecting bolts
spinal fusion
spondylodesis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19813132520
Other languages
German (de)
Other versions
DE3132520C2 (en
Inventor
Hilaire 8404 Winterthur Jacob
Norbert Dr.-med. 8008 Zürich Walker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of DE3132520A1 publication Critical patent/DE3132520A1/en
Application granted granted Critical
Publication of DE3132520C2 publication Critical patent/DE3132520C2/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7014—Longitudinal elements, e.g. rods with means for adjusting the distance between two screws or hooks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks

Abstract

In order to permit adjustable fixation of two immediately adjacent vertebrae (1) the novel spondylodesis stabilizer comprises brackets (3', 3'') which are fastened on the vertebrae (1) by means of bone screws (4) and are rigidly connected to one another via connecting bolts (10). The connecting bolts (10) are separated by a screw nut-like adapter piece (12) and have opposite screw threads (11', 11'') at the top and bottom which are screwed into corresponding threaded holes (5) in the brackets (3', 3''). <IMAGE>

Description

Spondylodese-StabilisatorSpinal fusion stabilizer

Die Erfindung betrifft einen Spondylodese-Stabilisator für die Fixierung der relativen Lage zweier unmittelbar benachbarter Wirbel zueinander.The invention relates to a spinal fusion stabilizer for fixation the relative position of two immediately adjacent vertebrae to each other.

Bei den bisherigen Konstruktionen von Spondylodese-Stabilisatoren sind zwei grundsätzlich verschiedene Bauarten zu unterscheiden. Bei dem einen Konstruktionskonzept benutzt man sogenannte Harrington-Stäbe; das sind gerillte Stäbe, die an je einem gesunden Wirbel oberhalb und unterhalb der zu stabilisierenden Wirbel mit Hilfe von Haken am Wirbelbogen eingedie hangt wadin,um/dazwischen liegenden Wirbel zu distrahieren.In the previous designs of spinal fusion stabilizers a distinction must be made between two fundamentally different types. With one construction concept so-called Harrington sticks are used; these are grooved bars, each attached to one healthy vertebrae above and below the vertebrae to be stabilized with the help by hooks on the vertebral arch which hangs wadin to / between vertebrae distract.

Für eine Kompression einer Anzahl Wirbel werden bei diesem Konzept Gewinde-/stangen in Verbindung mit den erwähnten Haken verwendet.With this concept, a number of vertebrae are compressed Threaded rods used in conjunction with the hooks mentioned.

Mindestens einer dieser Haken ist dabei mit einer Gewindemutter verbunden (Hackenbroch und Witt: Orthopädischchirurgischer Operationsatlas, Band III, Seite 65 und 127, Stuttgart, 1974). Ebenso wie andere Konstruktionen, bei denen über die Höhe mehrerer Wirbel wirkende Federn benutzt werden, ist es mit diesen Stäben nicht möglich, unmittelbar benachbarte Wirbel direkt gegeneinander zu fixieren. Darüberhinaus werden durch diese Stäbe und Federn, d.h. genauer ihre Haken, mit denen sie an gesunden Wirbeln befestigt werden, noch gesunde Teile der Wirbelsäule in Mitleidenschaft bezogen bzw. müssen für die Anwendung dieser Stabilisatoren in der Nähe der ruhigzustellenden Wirbelgelenke gesunde Wirbel für die Verankerung vorhandensein.At least one of these hooks is connected to a threaded nut (Hackenbroch and Witt: Orthopädischchirurgischer Operationsatlas, Volume III, page 65 and 127, Stuttgart, 1974). As well as other constructions where the If springs acting at the height of several vertebrae are used, these rods are not possible to fix directly adjacent vertebrae against each other. Furthermore are made by these rods and springs, i.e. more precisely their hooks with which they are healthy Vertebrae are attached, but healthy parts of the spine are still affected related or must for the application of these stabilizers in the vicinity of the immobilized Vertebral joints healthy vertebrae for anchoring are present.

Weiterhin sind aus Platten oder Schienen bestehende Konstruktionen bekannt, die direkt an den zu fixierenden Wirbeln, beispielsweise durch Schrauben und/oder Metellstifte, be- festigt werden (Operationsatlas, Seite 212). Zwar ist es mit diesen Platten und Schienen möglich, auch benachbarte Wirbel gegeneinander zu fixieren; ebenso wie bei einer Fixierung durch Knochenspäne (Operationsatlas, Seite 208/209) ist der Abstand, in dem die beiden Wirbel ruhiggestellt werden, jedoch bei diesen Konstruktionen nicht einstellbar.Furthermore, constructions are made of plates or rails known to be attached directly to the vertebrae to be fixed, for example by screws and / or metal pins, be consolidated (Operating Atlas, page 212). Although it is possible with these plates and rails, also neighboring vertebrae to fix against each other; as well as in the case of fixation with bone chips (surgical atlas, Page 208/209) is the distance at which the two vertebrae are immobilized, however not adjustable with these constructions.

Aufgabe der Erfindung ist es, einen Spondylodese-Stabilisator zu schaffen, der die Vorteile der beiden bekannten Konstruktionsprinzipien vereinigt, ohne dass die geschilderten Nachteile in Kauf genommen werden müssen. Diese Aufgabe wird mit der vorliegenden Erfindung gelöst durch an je einem der zu fixierenden Wirbel zu befestigende Laschen, die Gewindebohrungen mit gegenläufigem Umlaufsinn haben, und ferner durch Verbindungsbolzen, die durch Mittel für das Angreifen eines Werkzeugs getrennte gegensinnige Gewinde tragen. Die Gewindebohrungen tragenden Laschen werden dabei mit Vorteil durch Knochenschrauben, die durch den Wirbelbogenfuss (Pedikel) hindurch bis in den Wirbelkörper reichen, befestigt, wobei zum Ausgleich von Knochenunebenheiten Unterlagscheiben vorgesehen sein können. Durch Verdrehen des Verbindungsbolzens ist es auf einfache Weise möglich, in gewissen Grenzen jeden beliebigen Abstand zwischen den beiden zu fixierenden Wirbeln einzustellen und darüberhinaus im Laufe der Zeit Korrekturen dieses Abstandes vorzunehmen. Ein weiterer Vorteil der neuen Konstruktion besteht darin, dass die mechanische Fixierung in unmittelbarer Nähe der gegeneinander ruhigzustellenden Gelenkflächen erfolgt.The object of the invention is to create a spinal fusion stabilizer, which combines the advantages of the two well-known construction principles without the disadvantages described must be accepted. This task is done with the present invention solved by each one of the vertebrae to be fixed fastening tabs that have threaded holes with opposite directions of rotation, and furthermore by connecting bolts, which by means for engaging a tool wear separate opposing threads. The tabs bearing the threaded holes will be with the advantage of bone screws that pass through the vertebral arch foot (pedicle) extend through to the vertebral body, attached, to compensate for uneven bones Washers can be provided. By turning the connecting bolt it is possible in a simple way, within certain limits, any desired distance between the two vertebrae to be fixed and furthermore in the course to make corrections to this distance over time. Another benefit of the new Construction consists in having mechanical fixation in close proximity of the joint surfaces to be immobilized against each other.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels näher erläutert.In the following the invention is based on an exemplary embodiment explained in more detail.

Fig. 1 zeigt in einer Ansicht von dorsal die Fixierung zweier Wirbel mit Hilfe der neuen Stabilisatoren; Fig. 2 ist eine Aufsicht auf Fig. 1 von oben; Fig. 3 und 4 geben als Detail eine der Laschen in gleicher Darstellung wie Fig. 1 und 2 wieder. 1 shows the fixation of two vertebrae in a dorsal view with the help of the new stabilizers; Fig. 2 is a plan view Fig. 1 from above; 3 and 4 show one of the tabs in the same representation as a detail like Fig. 1 and 2 again.

Zur Fixierung der zwischen zwei benachbarten Wirbeln 1 liegenden Gelenke 2 sind an jedem Wirbel 1 beidseits ihrer Mittelebene Laschen 3' bzw. 3 " befestigt, von denen eine in einer der Darstellung der Fig. 1 und 2 entsprechenden Weise als Detail in Fig. 3 und 4 gezeigt ist.To fix the joints lying between two adjacent vertebrae 1 2 tabs 3 'or 3 "are attached to each vertebra 1 on both sides of its median plane, of which one in a manner corresponding to the representation of FIGS. 1 and 2 as Detail in Figs. 3 and 4 is shown.

Die Laschen 3 haben zum einen eine Gewindebohrung 5 (Fig. 3), die beispielsweise in Fig. 1 bei der rechten unteren und der linken oberen Lasche 3' einen Drehsinn (Rechtsgewinde) haben, der zu demjenigen (Linkgsgewinde) an der rechten oberen und der linken unteren Lasche 3 " entgegengesetzt ist. Weiterhin besitzen die Laschen 3 eine senkrecht zur Gewindebohrung 5 verlaufende Bohrung 8.The tabs 3 have on the one hand a threaded hole 5 (Fig. 3), which for example in Fig. 1 at the right lower and the left upper flap 3 ' have a direction of rotation (right-hand thread) that corresponds to the one (left-hand thread) on the right upper and lower left flap 3 "is opposite. Continue to own the tabs 3 have a bore 8 running perpendicular to the threaded bore 5.

Die Befestigung der Laschen 3 im Wirbel erfolgt durch die Bohrungen 8 hindurch mit Hilfe von relativ langen Knochenschrauben 4, die von dorsal durch die Pedikel 6 hindurch tief in die Wirbelkörper 7 hin#ein reichen. Um dabei die relativ starken Unebenheiten der Oberflächen der Pedikel 6 auszugleichen und einen festen Sitz der Lasche 3 am Wirbelknochen zu gewährleisten, ist zwischen den Laschen 3 und den Pedikeln 6 jeweils eine Unterlagsscheibe 9 (Fig. 2) vorgesehen.The fastening of the tabs 3 in the vertebra is done through the holes 8 through with the help of relatively long bone screws 4, which from the dorsal through the pedicles 6 reach deep into the vertebral bodies 7. To do the to compensate for relatively strong unevenness of the surfaces of the pedicle 6 and one To ensure a firm fit of the flap 3 on the vertebral bone is between the flaps 3 and the pedicles 6 each have a washer 9 (FIG. 2).

In die Gewindebohrungen 5 -der Laschen 3 sind Verbindungsbolzen 10 eingeschraubt, die in ihren unteren bzw. ihren oberen Hälften den Gewinden der Laschen 3' bzw. 3 " entsprechende Gewinde 11' und 11 " tragen. In der Mitte sind die gegenläufigen Gewinde 11' und 11'' durch ein als Sechskant ausgebildetes Mittelstück 12 voneinander getrennt; an dieses kann ein Schraubenschlüssel angreifen, wenn der durch die Verbindungsbolzen 10 fixierte Abstand zwischen den Wirbeln 1 eingestellt oder verändert werden soll.Connecting bolts 10 are inserted into the threaded bores 5 of the tabs 3 screwed in, the threads of the tabs in their lower or upper halves 3 'or 3 "wear corresponding threads 11' and 11". In the middle are the opposing ones Thread 11 'and 11' 'from one another by a center piece 12 designed as a hexagon separated; a wrench can attack this, if the distance between the vertebrae 1 fixed by the connecting bolts 10 is set or should be changed.

LeerseiteBlank page

Claims (3)

Patentansprüche Spondylodese-Stabilisator für die Fixierung der relativen Lage zweier unmittelbar benachbarter Wirbel zueinander, gekennzeichnet durch an je einem der zu fixierenden Wirbel (1) zu befestigende Laschen (3, 3', 3#'),die Gewindebohrungen (5) mit gegenläufigem Umlaufsinn haben, und ferner durch Verbindungsbolzen (10), die durch Mittel (12) für das Angreifen eines Werkzeugs getrennte gegensinnige Gewinde (11', 11'') tragen. Claims spinal fusion stabilizer for the fixation of the relative Position of two immediately adjacent vertebrae to one another, indicated by an each one of the vertebrae to be fixed (1) to be fastened tabs (3, 3 ', 3 #'), the Have threaded bores (5) with opposite directions of rotation, and also by connecting bolts (10), the opposite directions separated by means (12) for engaging a tool Carry thread (11 ', 11' '). 2. Spondylodese-Stabilisator nach Anspruch 1, dadurch gekennzeichnet, dass die Laschen (3, 3', 3 ") mittels Kno#henschrauben (4) in den Wirbeln (1) befestigt sind. 2. Spinal fusion stabilizer according to claim 1, characterized in that that the straps (3, 3 ', 3 ") are fastened in the vertebrae (1) by means of bone screws (4) are. 3. Spondylodese-Stabilisator nach Anspruch 2, dadurch gekennzeichnet, dass zwischen den Laschen (3, 3', 3 ") und den Wirbeln (1) eine Unterlagsschreibe (9) vorgesehen ist. 3. Spinal fusion stabilizer according to claim 2, characterized in that that between the tabs (3, 3 ', 3 ") and the vertebrae (1) a washer (9) is provided.
DE19813132520 1980-11-18 1981-08-18 Spinal fusion stabilizer Expired DE3132520C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH852680A CH646857A5 (en) 1980-11-18 1980-11-18 SPONDYLODESIS STABILIZER.

Publications (2)

Publication Number Publication Date
DE3132520A1 true DE3132520A1 (en) 1982-06-16
DE3132520C2 DE3132520C2 (en) 1985-03-07

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DE19813132520 Expired DE3132520C2 (en) 1980-11-18 1981-08-18 Spinal fusion stabilizer

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AT (1) AT387710B (en)
CH (1) CH646857A5 (en)
DE (1) DE3132520C2 (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306657A1 (en) * 1983-02-25 1984-09-06 Fa. Heinrich C. Ulrich, 7900 Ulm IMPLANT FOR SPINE CORRECTION WITH A DISTRACTION ROD
DE3504495A1 (en) * 1984-02-09 1985-10-10 Charles Cannon Baltimore Edwards, Md. SACRAL FIXING DEVICE
DE3625542C1 (en) * 1986-07-29 1987-11-12 Heinrich Ulrich Device for dorsal spinal repositioning during the operation of lumbar spondylolisthesis
DE3802833A1 (en) * 1987-02-27 1988-09-08 Gerhard Weber Internal fixator
US4771767A (en) * 1986-02-03 1988-09-20 Acromed Corporation Apparatus and method for maintaining vertebrae in a desired relationship
DE3733924A1 (en) * 1987-10-07 1989-04-27 Mecron Med Prod Gmbh SPINE FIXATION DEVICE
EP0328883A2 (en) * 1988-02-18 1989-08-23 Howmedica GmbH Supporting device for the human spinal column
EP0348581A2 (en) * 1988-06-10 1990-01-03 Synthes Ag Chur Vertebrae fixation implant
EP0392124A1 (en) * 1987-11-16 1990-10-17 Francis Henri Bréard Surgical implant for limiting the relative movement of vertebrae
US5015247A (en) * 1988-06-13 1991-05-14 Michelson Gary K Threaded spinal implant
EP0537598A2 (en) * 1991-10-18 1993-04-21 Pina Vertriebs Ag Compressive margical implant
WO1993013722A1 (en) * 1992-01-16 1993-07-22 Heinrich Ulrich Spondylodesis implant
US5282863A (en) * 1985-06-10 1994-02-01 Charles V. Burton Flexible stabilization system for a vertebral column
ES2072831A1 (en) * 1993-01-04 1995-07-16 Levante Ind Quirurgicas Spinal fastening system
US5562661A (en) * 1995-03-16 1996-10-08 Alphatec Manufacturing Incorporated Top tightening bone fixation apparatus
US6120503A (en) * 1994-03-28 2000-09-19 Michelson; Gary Karlin Apparatus instrumentation, and method for spinal fixation
US6770074B2 (en) 1988-06-13 2004-08-03 Gary Karlin Michelson Apparatus for use in inserting spinal implants
US6972019B2 (en) 2001-01-23 2005-12-06 Michelson Gary K Interbody spinal implant with trailing end adapted to receive bone screws
US7115128B2 (en) 1988-06-13 2006-10-03 Sdgi Holdings, Inc. Method for forming through a guard an implantation space in the human spine
US7691148B2 (en) 1995-06-07 2010-04-06 Warsaw Orthopedic, Inc. Frusto-conical spinal implant
US7828800B2 (en) 1995-06-07 2010-11-09 Warsaw Orthopedic, Inc. Threaded frusto-conical interbody spinal fusion implants
US7887565B2 (en) 1993-06-10 2011-02-15 Warsaw Orthopedic, Inc. Apparatus and method for sequential distraction
US7935116B2 (en) 1994-05-27 2011-05-03 Gary Karlin Michelson Implant for the delivery of electrical current to promote bone growth between adjacent bone masses
US8066705B2 (en) 1988-06-13 2011-11-29 Warsaw Orthopedic, Inc. Instrumentation for the endoscopic correction of spinal disease
US8734447B1 (en) 1988-06-13 2014-05-27 Warsaw Orthopedic, Inc. Apparatus and method of inserting spinal implants

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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SE458417B (en) * 1985-08-15 1989-04-03 Sven Olerud FIXING INSTRUMENTS PROVIDED FOR USE IN SPINE OPERATIONS
CH674709A5 (en) * 1988-04-27 1990-07-13 Sulzer Ag
US5484437A (en) 1988-06-13 1996-01-16 Michelson; Gary K. Apparatus and method of inserting spinal implants

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US2774350A (en) * 1952-09-08 1956-12-18 Jr Carl S Cleveland Spinal clamp or splint
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US2251209A (en) * 1940-02-17 1941-07-29 Stader Otto Bone splint
US2774350A (en) * 1952-09-08 1956-12-18 Jr Carl S Cleveland Spinal clamp or splint
DE2834891B2 (en) * 1978-06-28 1980-09-04 Synthes Ag, Chur (Schweiz) Fixator for fixing bones or bone fragments, especially vertebrae

Non-Patent Citations (1)

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306657A1 (en) * 1983-02-25 1984-09-06 Fa. Heinrich C. Ulrich, 7900 Ulm IMPLANT FOR SPINE CORRECTION WITH A DISTRACTION ROD
DE3504495A1 (en) * 1984-02-09 1985-10-10 Charles Cannon Baltimore Edwards, Md. SACRAL FIXING DEVICE
US5282863A (en) * 1985-06-10 1994-02-01 Charles V. Burton Flexible stabilization system for a vertebral column
US4771767A (en) * 1986-02-03 1988-09-20 Acromed Corporation Apparatus and method for maintaining vertebrae in a desired relationship
DE3625542C1 (en) * 1986-07-29 1987-11-12 Heinrich Ulrich Device for dorsal spinal repositioning during the operation of lumbar spondylolisthesis
DE3802833A1 (en) * 1987-02-27 1988-09-08 Gerhard Weber Internal fixator
US4944743A (en) * 1987-10-07 1990-07-31 Mecron Medizinische Produkte Gmbh Spinal Fixation device
DE3733924A1 (en) * 1987-10-07 1989-04-27 Mecron Med Prod Gmbh SPINE FIXATION DEVICE
EP0392124A1 (en) * 1987-11-16 1990-10-17 Francis Henri Bréard Surgical implant for limiting the relative movement of vertebrae
EP0328883A2 (en) * 1988-02-18 1989-08-23 Howmedica GmbH Supporting device for the human spinal column
EP0328883A3 (en) * 1988-02-18 1990-03-28 Howmedica Gmbh Supporting device for the human spinal column
EP0348581A3 (en) * 1988-06-10 1990-03-28 Synthes Ag Vertebrae fixation implant
EP0348581A2 (en) * 1988-06-10 1990-01-03 Synthes Ag Chur Vertebrae fixation implant
US5047029A (en) * 1988-06-10 1991-09-10 Synthes (U.S.A.) Clamp and system for internal fixation
US6770074B2 (en) 1988-06-13 2004-08-03 Gary Karlin Michelson Apparatus for use in inserting spinal implants
US5015247A (en) * 1988-06-13 1991-05-14 Michelson Gary K Threaded spinal implant
US7722619B2 (en) 1988-06-13 2010-05-25 Warsaw Orthopedic, Inc. Method of maintaining distraction of a spinal disc space
US7914530B2 (en) 1988-06-13 2011-03-29 Warsaw Orthopedic, Inc. Tissue dilator and method for performing a spinal procedure
US7686805B2 (en) 1988-06-13 2010-03-30 Warsaw Orthopedic, Inc. Methods for distraction of a disc space
US7288093B2 (en) 1988-06-13 2007-10-30 Warsaw Orthopedic, Inc. Spinal fusion implant having a curved end
US8758344B2 (en) 1988-06-13 2014-06-24 Warsaw Orthopedic, Inc. Spinal implant and instruments
US8734447B1 (en) 1988-06-13 2014-05-27 Warsaw Orthopedic, Inc. Apparatus and method of inserting spinal implants
US8353909B2 (en) 1988-06-13 2013-01-15 Warsaw Orthopedic, Inc. Surgical instrument for distracting a spinal disc space
US8251997B2 (en) 1988-06-13 2012-08-28 Warsaw Orthopedic, Inc. Method for inserting an artificial implant between two adjacent vertebrae along a coronal plane
US7115128B2 (en) 1988-06-13 2006-10-03 Sdgi Holdings, Inc. Method for forming through a guard an implantation space in the human spine
US8066705B2 (en) 1988-06-13 2011-11-29 Warsaw Orthopedic, Inc. Instrumentation for the endoscopic correction of spinal disease
EP0537598A2 (en) * 1991-10-18 1993-04-21 Pina Vertriebs Ag Compressive margical implant
EP0537598A3 (en) * 1991-10-18 1993-12-22 Pina Vertriebs Ag Compressive margical implant
WO1993013722A1 (en) * 1992-01-16 1993-07-22 Heinrich Ulrich Spondylodesis implant
US5409488A (en) * 1992-01-16 1995-04-25 Ulrich; Heinrich Spondylodesis implant
ES2072831A1 (en) * 1993-01-04 1995-07-16 Levante Ind Quirurgicas Spinal fastening system
US7887565B2 (en) 1993-06-10 2011-02-15 Warsaw Orthopedic, Inc. Apparatus and method for sequential distraction
US7993347B1 (en) 1993-06-10 2011-08-09 Warsaw Orthopedic, Inc. Guard for use in performing human interbody spinal surgery
US7255698B2 (en) 1994-03-28 2007-08-14 Warsaw Orthopedic, Inc. Apparatus and method for anterior spinal stabilization
US7914554B2 (en) 1994-03-28 2011-03-29 Warsaw Orthopedic, Inc. Spinal implant containing multiple bone growth promoting materials
US6120503A (en) * 1994-03-28 2000-09-19 Michelson; Gary Karlin Apparatus instrumentation, and method for spinal fixation
US6136001A (en) * 1994-03-28 2000-10-24 Michelson; Gary Karlin Apparatus and method for linking spinal implants
US7976566B2 (en) 1994-03-28 2011-07-12 Warsaw Orthopedic, Inc. Apparatus for insertion into an implantation space
US8343188B2 (en) 1994-03-28 2013-01-01 Warsaw Orthopedic, Inc. Device and method for locking a screw with a bendable plate portion
US6364880B1 (en) 1994-03-28 2002-04-02 Gary Karlin Michelson Spinal implant with bone screws
US8206387B2 (en) 1994-05-27 2012-06-26 Michelson Gary K Interbody spinal implant inductively coupled to an external power supply
US7935116B2 (en) 1994-05-27 2011-05-03 Gary Karlin Michelson Implant for the delivery of electrical current to promote bone growth between adjacent bone masses
US5562661A (en) * 1995-03-16 1996-10-08 Alphatec Manufacturing Incorporated Top tightening bone fixation apparatus
US7942933B2 (en) 1995-06-07 2011-05-17 Warsaw Orthopedic, Inc. Frusto-conical spinal implant
US8226652B2 (en) 1995-06-07 2012-07-24 Warsaw Orthopedic, Inc. Threaded frusto-conical spinal implants
US8057475B2 (en) 1995-06-07 2011-11-15 Warsaw Orthopedic, Inc. Threaded interbody spinal fusion implant
US7828800B2 (en) 1995-06-07 2010-11-09 Warsaw Orthopedic, Inc. Threaded frusto-conical interbody spinal fusion implants
US8409292B2 (en) 1995-06-07 2013-04-02 Warsaw Orthopedic, Inc. Spinal fusion implant
US8679118B2 (en) 1995-06-07 2014-03-25 Warsaw Orthopedic, Inc. Spinal implants
US7691148B2 (en) 1995-06-07 2010-04-06 Warsaw Orthopedic, Inc. Frusto-conical spinal implant
US8167946B2 (en) 2001-01-23 2012-05-01 Warsaw Orthopedic, Inc. Implant with openings adapted to receive bone screws
US6972019B2 (en) 2001-01-23 2005-12-06 Michelson Gary K Interbody spinal implant with trailing end adapted to receive bone screws
US7442209B2 (en) 2001-01-23 2008-10-28 Warsaw Orthopedic, Inc. Implant with trailing end adapted to receive bone screws
US8668741B2 (en) 2001-01-23 2014-03-11 Warsaw Orthopedic, Inc. Implant with openings adapted to receive bone screws
US7794502B2 (en) 2001-01-23 2010-09-14 Warsaw Orthopedic, Inc. Implant with openings adapted to receive bone screws

Also Published As

Publication number Publication date
CH646857A5 (en) 1984-12-28
DE3132520C2 (en) 1985-03-07
ATA358981A (en) 1988-08-15
AT387710B (en) 1989-03-10

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