DE4409392A1 - Height-adjustable vertebral body - Google Patents

Height-adjustable vertebral body

Info

Publication number
DE4409392A1
DE4409392A1 DE19944409392 DE4409392A DE4409392A1 DE 4409392 A1 DE4409392 A1 DE 4409392A1 DE 19944409392 DE19944409392 DE 19944409392 DE 4409392 A DE4409392 A DE 4409392A DE 4409392 A1 DE4409392 A1 DE 4409392A1
Authority
DE
Germany
Prior art keywords
vertebral body
characterized
height adjustable
artificial vertebral
body according
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.)
Withdrawn
Application number
DE19944409392
Other languages
German (de)
Inventor
Lutz Bierdermann
Juergen Prof Dr Harms
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.)
Biedermann Motech GmbH and Co KG
Original Assignee
Biedermann Motech GmbH and Co KG
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 Biedermann Motech GmbH and Co KG filed Critical Biedermann Motech GmbH and Co KG
Priority to DE19944409392 priority Critical patent/DE4409392A1/en
Publication of DE4409392A1 publication Critical patent/DE4409392A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
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    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • AHUMAN NECESSITIES
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006Properties of materials and coating materials
    • A61F2002/30062(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30224Three-dimensional shapes cylindrical
    • A61F2002/30235Three-dimensional shapes cylindrical tubular, e.g. sleeves
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/30364Rotation about the common longitudinal axis
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/3037Translation along the common longitudinal axis, e.g. piston
    • A61F2002/30372Translation along the common longitudinal axis, e.g. piston with additional means for limiting said translation
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    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/3039Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
    • A61F2002/30398Sliding
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • A61F2002/30411Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves having two threaded end parts connected by a threaded central part with opposite threads at its opposite ends, i.e. for adjusting the distance between both end parts by rotating the central part
    • AHUMAN NECESSITIES
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    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30561Special structural features of bone or joint prostheses not otherwise provided for breakable or frangible
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30601Special structural features of bone or joint prostheses not otherwise provided for telescopic
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
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    • A61F2/30771Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30841Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
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    • A61F2/30907Nets or sleeves applied to surface of prostheses or in cement
    • A61F2002/30909Nets
    • A61F2002/30912Nets made of expanded metal, e.g. diamond mesh or metal nets having lozenge-shaped apertures
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    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00023Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

The invention concerns a height-adjustable replacement body of a vertebra having a sleeve (1) and, viewed in the axial direction, a first abutment member (9) and a second abutment member (10) provided respectively on each side of the sleeve, and are secured against rotation in the sleeve and displaceable in the axial direction. A threaded arrangement (15) is provided which engages with the abutment members (9, 10) in order to move them coaxially.

Description

Die Erfindung betrifft einen höhenverstellbaren Wirbelkörper ersatz. The invention relates to a height-adjustable vertebral body replacement.

Aus der DE-GM 91 07 494 ist ein höhenverstellbarer Wirbelkörper ersatz bekannt. From DE-GM 91 07 494 a height-adjustable vertebral body replacement is known. Dieser weist eine Gewindestange auf, die an ihrem einen Ende ein Rechtsgewinde und an ihrem anderen Ende ein Links gewinde und in der Mitte eine schraubenmutterförmige Profilierung zum Eingreifen und Drehen der Gewindestange aufweist. This comprises a threaded rod at its one end a right-hand thread and at its other end a left-hand threaded and in the middle has a nut-shaped profiling for engaging and turning the threaded rod. Die Gewin destange ist an ihren beiden Enden jeweils mit damit zusammenwir kenden Stempeln verbunden, deren freie Enden mit einander gegen überliegenden Wirbelkörperflächen in Eingriff bringbar sind. The threaded rod is connected at both ends to thereby zusammenwir kenden stamping, whose free ends are engageable with opposing vertebral body surfaces in engagement. Zum Einsetzen werden die Stempel zunächst so weit auf die Gewin destange aufgeschraubt, daß der Abstand der Außenflächen kleiner ist als der Abstand der abzustützenden Wirbel. To insert the punches are first screwed so far onto the threaded rod in that the distance of the outer surfaces is less than the distance between the vertebrae to be supported. Dann werden die beiden Stempel an den gegenüberliegenden Enden von Hand gehalten, während gleichzeitig durch Eingreifen in der Mitte die Gewin destange so weit gedreht wird, bis die Stempel mit den gegenüber liegenden Wirbeln in Eingriff gelangen und durch diesen Eingriff in einer drehfesten Stellung bei gleichzeitigem Weiterdrehen der Gewindestange gehalten werden. Then, the two punches at the opposite ends by hand are held while at the same time by engaging the center least is the threaded is rotated so far, until the punch engage the opposing vertebrae engaging and by this engagement in a rotationally fixed position, with a simultaneous further rotation the threaded rod are held. Die beiden gegenüberliegenden Stem pel weisen auf ihren mit den Wirbeln in Eingriff gelangenden Flä chen mit den Wirbelkörpern in Eingriff bringbare Dorne auf. The two opposite Stem pel have their entering the vertebrae engaging surfaces FLAE with the vertebral bodies engageable on mandrels.

Aufgabe der Erfindung ist es, einen höhenverstellbaren Wirbelkör perersatz so auszubilden, daß er einfacher bedienbar ist, denn ge rade die einfache Bedienbarkeit spielt bei dem Einsatzgebiet in der Wirbelchirurgie eine außerordentlich große Rolle. The object of the invention is to design perersatz a height-adjustable Wirbelkör that it is easier to use, because ge rade ease of use plays an extremely important role in the mission area in the fluidized surgery.

Diese Aufgabe wird durch den in Anspruch 1 gekennzeichneten höhen verstellbaren Wirbelkörperersatz gelöst. This object is solved by the features characterized in claim 1 height-adjustable artificial vertebral body. Es wird dadurch erreicht, daß der Operateur mit einer Hand einfach die Hülse erfaßt und mit der anderen Hand die Dreheinstellung vornimmt. It is achieved that the operator simply senses with one hand the sleeve and making the rotational adjustment with the other hand. Bei Ineingriffge langen der Widerlagerkörper mit den Wirbelkörpern wirkt kein Dreh moment zwischen den Widerlagerkörpern und den Wirbelkörpern, so daß auch Verletzungen der Wirbeikörperdeckplatte vermieden werden. In Ineingriffge long the abutment body with the vertebrae no rotary torque acts between the abutment bodies and the vertebral bodies, so that violations of Wirbeikörperdeckplatte be avoided.

Weiterbildungen der Erfindung sind in den Unteransprüchen gekenn zeichnet. Further developments of the invention are characterized in marked in the dependent claims.

Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispieles anhand der Figuren. Further features and advantages of the invention will become apparent from the description of an embodiment with reference to FIGS. Von den Figuren zeigen: The figures show:

Fig. 1a einen Schnitt durch den Wirbelkörper ersatz in axialer Richtung; FIG. 1a is a section through the vertebral body in the axial direction;

Fig. 1b eine Draufsicht auf die in Fig. 1a gezeigte Vorrichtung; FIG. 1b shows a top view of the device shown in Figure 1a.

Fig. 2a eine Seitenansicht eines ersten Ge windeabschnittes und einer Profil achse; FIG. 2a is a side view of a first threaded portion and a Ge profile axis;

Fig. 2b eine Ansicht des in Fig. 2a gezeig ten Elementes von unten; FIG. 2b shows a view of the gezeig th in Figure 2a the element from below.

Fig. 3a eine Schnittdarstellung der Hülse; FIG. 3a shows a sectional view of the sleeve;

Fig. 3b eine Draufsicht auf die Hülse; FIG. 3b is a plan view of the sleeve;

Fig. 4a einen mit einem dem abzustützenden Wir belkörper in Eingriff bringbaren ersten Gewindeabschnitt; FIG. 4a is a with a said to be supported We belkörper engageable first threaded portion;

Fig. 4b eine Draufsicht auf den ersten Ge windeabschnitt von unten; FIG. 4b is a plan view of the first Ge threaded portion from below;

Fig. 5a eine entsprechende Schnittdarstellung eines zweiten Gewindeabschnittes; FIG. 5a is a sectional view corresponding to a second threaded portion;

Fig. 5b eine Draufsicht auf den zweiten Ge windeabschnitt; Fig. 5b threaded portion a top view of the second Ge;

Fig. 6a eine Seitenansicht eines Teiles eines Profilabschnittes; FIG. 6a is a side view of a part of a tread portion;

Fig. 6b eine Draufsicht auf das in Fig. 6a gezeigte Element; FIG. 6b is a plan view of that shown in Figure 6a element.

Fig. 7a den zweiten Gewindeabschnitt in ge schnittener Darstellung; Fig. 7a the second threaded portion in ge cut view;

Fig. 7b eine Seitenansicht des mit dem in Fig. 6a gezeigten Elementes zusam menwirkenden Elementes; FIG. 7b is a side view of menwirkenden together with that shown in Fig 6a member element. und and

Fig. 8 eine Seitenansicht im Schnitt. Fig. 8 is a side view in section.

Der höhenverstellbare Wirbelkörperersatz weist eine zylinderför mige Hülse 1 auf, die in axialer Richtung gesehen einen ersten Ab schnitt 2 und einen zweiten Abschnitt 3 aufweist. The height-adjustable vertebral body replacement has a zylinderför-shaped sleeve 1, as seen in the axial direction from a first section 2 and a second portion. 3 Zwischen diesen beiden Abschnitten weist der Zylindermantel Ausnehmungen 4 , 5 auf. Between these two sections, the cylinder jacket recesses 4; 5. Auf der Innenseite des Zylindermantels ist zwischen den beiden Ab schnitten 2 und 3 auf den einander gegenüberliegenden Seiten je weils ein in das Zylinderinnere hineinragender Anschlag 6 vorgese hen. On the inside of the cylinder jacket is provided between the two cut from 2 and 3 on the opposite sides of each weils a projecting into the interior of the cylinder stop 6 vorgese hen. Ferner weist der Zylinder auf zwei gegenüberliegenden Seiten sich parallel zur Zylinderachse erstreckende Führungsnuten 7 , 8 auf. Furthermore, the cylinder has two opposite sides parallel to the cylinder axis extending guide grooves 7, 8.

Der Wirbelkörperersatz weist einen ersten Widerlagerkörper 9 und einen zweiten Widerlagerkörper 10 auf. The vertebral replacement has a first abutment member 9 and a second abutment body 10 degrees. Beide Widerlagerkörper sind zylinderförmig ausgebildet und weisen einen Außendurchmesser auf, der um soviel kleiner ist als der Innendurchmesser der zylinder förmigen Hülse 1 , daß die Widerlagerkörper gerade in dem Zylinder gleiten können. Both abutment bodies are cylindrical and have an outer diameter which is smaller by as much as the inner diameter of the barrel 1 so that the abutment body can slide straight in the cylinder. Auf ihrer Außenseite weisen die Widerlagerkörper beide an den den Nuten 7 und 8 entsprechenden Stellen nach außen hervorstehende Nasen 11 , 12 auf, die so bemessen sind, daß sie in den Nuten 7 , 8 gleiten können. On their outside exhibit the abutment body both on the grooves 7 and 8 corresponding locations outwardly projecting tabs 11, 12 which are dimensioned so that they can slide 8 in the grooves 7. Auf der Innenseite weist der erste Widerlagerkörper 9 ein Linksgewinde auf, während der zweite Wider lagerkörper auf seiner Innenseite ein Rechtsgewinde mit entspre chender Steigung aufweist. 9 on the inner side, the first abutment body on a left-hand thread, while the second abutment bearing body has on its inner side a right-hand thread with entspre chender gradient. Die Widerlagerkörper 9 , 10 weisen auf den jeweils mit den abzustützenden Wirbelkörpern zusammenwirkenden äußeren Randflächen 13 , 14 nach außen hervorstehende Zacken 28 , 29 auf, die mit den zugehörigen Wirbelkörpern in Eingriff gelangen. The abutment body 9, 10 have on the co-operating respectively with the outer peripheral surfaces to be supported vertebral bodies 13, 14 outwardly projecting prongs 28, 29 which engage with the associated vertebral bodies in engagement.

Wie insbesondere aus den Fig. 1a und 8 ersichtlich ist, bildet der Bereich der hervorstehenden Zacken einen Mantel, dessen Wand stärke dünner ist als der der Widerlagerkörper 9 , 10 , und der vor zugsweise eine Wandstärke von etwa 1 mm besitzt. As shown particularly in FIGS. 1 and 8 can be seen, the area of the protruding tines forms a shell whose wall thickness is thinner than that of the abutment body 9, 10, and the front preferably has a wall thickness of about 1 mm. Die mantelförmige Wandung weist zwischen den Zacken und den Randflächen 13 , 14 Aus nehmungen 30 , 31 auf. The shell-shaped wall has, between the teeth and the edge surfaces 13, 14 from recesses 30, 31. Die Zacken selbst weisen, wie am besten aus Fig. 8 ersichtlich ist, überstehende Abschnitte 32 , 33 zum Ab schneiden auf. The tines themselves have, as best shown in FIG. 8 can be seen projecting portions 32, 33 for cut at Ab. Dadurch ist es möglich, daß der Operateur vor Ort zum Beispiel durch Abtrennen der in Fig. 8 angedeuteten Abschnitte 32 , 33 keilförmig zueinander verlaufende Endflächen der Zacken anschneidet, so daß die durch die Zacken gebildeten Endflächen un ter einem Winkel zueinander verlaufen. Thereby, it is possible that the surgeon cuts into on-site, for example, by separating the position indicated in Fig. 8 portions 32, 33 in a wedge shape to each other extending end surfaces of the teeth, so that the end faces un ter formed by the prongs extend at an angle to each other. Die Ausnehmungen 30 , 31 sind vorzugsweise als sich in Axialrichtung erstreckende Dreiecke oder als Rauten ausgebildet. The recesses 30, 31 are preferably formed when axially extending triangles or diamonds.

Im Inneren der beiden Widerlagerkörper ist eine Gewindeeinrichtung 15 vorgesehen. Inside the two abutment body thread means 15 is provided. Diese umfaßt an ihrem einen Ende einen ersten Ge windeabschnitt 16 . This includes at one end a first threaded portion Ge sixteenth Dieser ist zylinderförmig ausgebildet und weist ein Außengewinde auf, welches zu dem Innengewinde des ersten Wi derlagerkörpers 9 passend ausgebildet ist. This is cylindrical and has an external thread, which is formed into the internal thread of the first Wi derlagerkörpers 9 appropriately. Der Gewindeabschnitt ist einstückig mit einer sich koaxial erstreckenden Profilachse 17 ausgebildet. The threaded portion is integrally formed with a coaxially extending profile axis 17th Das Profil hat die aus Fig. 2b ersichtliche Form. The profile has seen in FIG. 2b form. Die Länge der Gewindeeinrichtung entspricht der Länge der Hülse 1 . The length of the threaded means corresponding to the length of the sleeve. 1 Die Länge des ersten Gewindeabschnittes 16 entspricht der Länge des ersten Widerlagerkörpers 9 . The length of the first threaded section 16 corresponds to the length of the first abutment body. 9 Die Gewindeeinrichtung 15 umfaßt fer ner den in Fig. 7a gezeigten zweiten Gewindeabschnitt 18 . The thread means 15 comprises fer ner the second threaded portion 18 shown in Fig. 7a. Dieser ist als Zylinderabschnitt ausgebildet und weist auf seiner äußeren Zylinderfläche ein Gewinde auf, welches dem Innengewinde des zwei ten Widerlagerkörpers 2 entspricht. This is formed as a cylinder section and has on its outer cylindrical surface a thread which corresponds to the internal thread of the two ten abutment body. 2 Die Länge des zweiten Gewinde abschnittes entspricht der Länge des zweiten Widerlagerkörpers 10 . The length of the second threaded portion corresponds to the length of the second abutment body 10 degrees. Der zweite Gewindeabschnitt weist eine konzentrische Ausnehmung 19 auf, deren Querschnitt dem Querschnitt der Profilachse 17 ent spricht. The second threaded portion has a concentric recess 19 whose cross section speaks ent to the cross section of the profile axis 17th

Schließlich weist der Wirbelkörperersatz einen Profilabschnitt 19 auf. Finally, the vertebral body replacement has a profile section 19th Der Profilabschnitt 19 umfaßt einen plattenförmigen Abschnitt 20 . The tread portion 19 comprises a plate-shaped portion 20th Dieser weist einen ersten Abschnitt 21 auf, dessen äußerer Durchmesser kleiner ist als der verbleibende lichte Durchmesser zwischen den in das Zylinderinnere hineinstehenden Anschlagteilen 6 . This has a first portion 21 whose outer diameter is smaller than the remaining inside diameter between the inside projecting stop parts into the cylinder. 6 Daran angrenzend ist ein zweiter Abschnitt 22 vorgesehen, der kreisförmig ausgebildet ist und dessen Durchmesser größer ist als der Abstand der beiden Anschlagteile 6 und kleiner ist als der In nendurchmesser der zylinderförmigen Hülse 1 . Adjacent thereto a second section 22 is provided which is circular and whose diameter is greater than the distance between the two abutment members 6 and is smaller than the In nendurchmesser of the cylindrical sleeve. 1 Der plattenförmige Abschnitt 22 weist eine koaxial ausgebildete Ausnehmung 23 auf, deren Querschnitt dem äußeren Querschnitt der Profilachse 17 ent spricht. The plate-shaped portion 22 has a coaxially shaped recess 23 whose cross-section speaks ent to the outer cross section of the profile axis 17th Darüber hinaus weist der erste Abschnitt 21 sich in radi aler Richtung erstreckende und gegeneinander winkelmäßig versetzte Ausnehmungen 24 auf, die zum Eingreifen mittels eines stabförmigen Werkzeuges 25 dienen. In addition, the first portion 21 extending in the radial direction aler and mutually angularly offset recesses 24 which serve for engagement by means of a rod-shaped tool 25th Ferner umfaßt der Profilabschnitt 19 eine dem zweiten Abschnitt entsprechende zylinderförmige Platte 26 , de ren Außendurchmesser dem Außendurchmesser des zweiten Abschnittes entspricht und die in gleicher Weise eine koaxiale Ausnehmung 27 aufweist, deren Querschnitt dem Querschnitt der Profilachse 17 entspricht. Further, the profile section 19 comprises a corresponding second section cylindrical plate 26, de ren outer diameter corresponds to the outer diameter of the second portion and which has a coaxial recess 27 in the same way, the cross section corresponds to the cross section of the profile axis 17th

Die Teile sind wie folgt zusammengesetzt: The parts are assembled as follows:

Vom freien Ende der Profilachse 17 her wird der plattenförmige Ab schnitt 20 auf die Profilachse so aufgeschoben, daß er mit dem zweiten Abschnitt an der unteren Fläche des ersten Gewindeab schnittes anliegt. From the free end of the profile axis 17 of the plate-shaped forth Ab is cut 20 to the profile axis so pushed to abut section to the second section on the lower surface of the first Gewindeab. Ferner wird auf den ersten Gewindeabschnitt der erste Widerlagerkörper 9 vollständig aufgeschraubt. Further, it is fully screwed onto the first threaded portion of the first abutment body. 9 Der so vormon tierte Teil wird von oben in den ersten Abschnitt der Hülse 1 so weit eingeschoben, bis der zweite Abschnitt mit seinem hervorste henden Rand auf den Anschlägen 6 aufliegt. The so vormon oriented part is inserted from above into the first section of the sleeve 1 so far that the second portion rests with its edge on the stops hervorste Henden. 6 Von der anderen Seite der Hülse her wird durch den zweiten Abschnitt die Platte 26 bis zum Anschlag an die Unterseite des zweiten Abschnittes bzw. der Anschlagteile 6 aufgeschoben. From the other side of the sleeve forth the plate 26 is pushed to the bottom of the second section and the abutment portions 6 to the stop through the second portion. Der zweite Widerlagerkörper 10 wird auf den zweiten Gewindeabschnitt 18 vollständig aufgeschraubt, und diese beiden Teile werden dann bei Eingriff der Nasen 11 , 12 in die Nuten 7 , 8 und des Profilabschnittes 19 mit der Profilachse 17 vollständig in den zweiten Abschnitt 3 der Hülse 1 eingeschoben. The second abutment body 10 is completely screwed onto the second threaded portion 18, and these two parts are then in engagement of the lugs 11, fully inserted 12 in the grooves 7, 8 and of the profile section 19 with the profile axis 17 in the second portion 3 of the sleeve 1 , Die Bemessung des Profilabschnittes 19 ist so gewählt, daß eine ausreichende Reibverbindung zwischen Teil 18 und Profilachse 17 vorhanden ist. The dimensioning of the profile section 19 is chosen so that a sufficient frictional engagement between member 18 and the profile axis 17 is present.

Im Betrieb hat der so zusammengesetzte Wirbelkörperersatz seine kleinste Ausdehnung in axialer Richtung. In operation of the thus assembled vertebral body replacement has its smallest extent in the axial direction. Der Operateur erfaßt die Vorrichtung durch Ergreifen der Hülse mit einer Hand und greift mit einem stangenförmigen Werkzeug 25 in die Ausnehmungen 24 ein und dreht über den ersten Abschnitt 21 die Gewindeeinrichtung 15 und verschiebt als Folge davon die beiden Widerlagerkörper 9 , 10 so weit nach außen, bis der Abstand der entgegengesetzt gerichte ten Randflächen 13 , 14 bzw. der von diesen hervorstehenden Zacken 28 , 29 so groß ist, daß die Wirbelkörper ausreichend abgestützt werden. The operator detects the device by grasping the sleeve with one hand, and engages in the recesses 24 with a rod-shaped tool 25 and rotates over the first portion 21, the thread means 15 and moves as a result of which the two abutment bodies 9, 10 so far to the outside, until the distance between the opposite dishes th edge surfaces 13, 14 and of these protruding prongs 28, 29 is so large that the vertebral bodies are sufficiently supported.

Die von den Widerlagerkörpern 9 , 10 nach außen hervorstehenden Ränder mit den Zacken 28 , 29 weisen rautenförmige Ausnehmungen 30 , 31 auf, die rautenförmig bzw. dreieckförmig als Rautenabschnitte ausgebildet sind. The point of the abutment bodies 9, 10 outwardly protruding edges with the teeth 28, 29 diamond-shaped recesses 30, 31 which are diamond-shaped or triangular-shaped as a rhombus sections. Die an diesen Ausnehmungen hervorstehenden Zacken weisen jeweils eine im wesentlichen gleiche Länge auf. The protruding spikes of these recesses each have a substantially same length. Wie aus Fig. 8 ersichtlich ist, sind die über die Ausnehmungen 30 , 31 hervorstehenden Zacken so lang ausgebildet, daß die in Fig. 8 durch die strichpunktierten Linien angedeuteten Abschnitte 32 , 33 abtrennbar sind, um so gewünschtenfalls einen im Querschnitt keil förmigen Wirbelkörperersatz zu schaffen. As is apparent from Fig. 8, the via the recesses 30, 31 protruding spikes formed so long that the positions indicated in Fig. 8 by the dash-dot lines segments 32, 33 are separated, so as, if desired, a wedge-shaped in cross-section vertebral body replacement to create. Als Material für den Wir belkörperersatz wird insbesondere Titanmaterial oder ein körperre sorbierbares Kunststoffmaterial gewählt. especially titanium material or a körperre sorbable plastic material is used as material for the We belkörperersatz selected.

Bei der Operation wird der von dem die Zacken 28 , 29 tragenden dünneren Mantel umgebene Raum mit körpereigenem oder fremdem Kno chenmaterial gefüllt. In the operation of the of the prongs 28, 29 supporting the thinner mantle space surrounded with autologous or foreign bone is filled chenmaterial. Die hervorstehenden Zacken 28 , 29 greifen in die benachbarte Wirbelkörperdeckplatte ein. The projecting prongs 28, 29 engage the adjacent vertebral bodies cover plate. Es erfolgt anschlie ßend ein Verwachsen zwischen den benachbarten Wirbelkörpern bzw. Wirbelkörperdeckplatten und dem Implantat, so daß eine Verankerung erfolgt, die es ermöglicht, den höhenverstellbaren Wirbelkörperer satz nach der Erfindung als Langzeitimplantat zu verwenden. There is subsequently ßend intergrowth between the adjacent vertebral bodies or vertebral body cover plates and the implant, so that an anchoring takes place, which makes it possible to use the height-adjustable vertebral Körperer set according to the invention as long-term implant.

Claims (11)

1. Höhenverstellbarer Wirbelkörperersatz mit einer Hülse ( 1 ), 1. Height adjustable artificial vertebral body having a sleeve (1),
einem in dieser in axialer Richtung gesehen an einer Hülsenseite vorgesehenen und in der Hülse drehfest und in axialer Richtung verschiebbaren ersten Widerlagerkörper ( 9 ), a in this seen in the axial direction provided on a shell side and non-rotatably in the sleeve and movable in the axial direction of the first abutment body (9),
einem in dieser in axialer Richtung gesehen an der entgegengesetz ten Seite vorgesehenen und in der Hülse drehfest und in axialer Richtung verschiebbaren zweiten Widerlagerkörper ( 10 ) und a in this seen in the axial direction at the most opposite-hand side and provided rotatably in the sleeve and movable in the axial direction of the second abutment body (10) and
einer mit den Widerlagerkörpern ( 9 , 10 ) in Eingriff befindlichen Gewindeeinrichtung ( 15 ) zum Bewegen der Widerlagerkörper ( 9 , 10 ) in jeweils zueinander entgegengesetzter axialer Richtung bei Ver stellen der Gewindeeinrichtung ( 15 ). thread means (15) are in engagement one with the abutment bodies (9, 10) for moving the abutment member (9, 10) in each case mutually opposite axial direction when Ver provide the threaded means (15).
2. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 1, dadurch gekennzeichnet, daß die Widerlagerkörper ( 9 , 10 ) jeweils zueinander entgegengesetzt gerichtete Gewinde aufweisen und die Gewindeeinrichtung ( 15 ) mit diesen jeweiligen Gewinden zusammen wirkende Gewindeabschnitte ( 16 , 18 ) aufweisen. 2. Height adjustable artificial vertebral body according to claim 1, characterized in that the abutment body (9, 10) opposite each other, respectively have directed thread and the thread means (15) with these respective threads cooperating threaded portions (16, 18).
3. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Gewindeeinrichtung ( 15 ) zwischen den Gewindeabschnitten ( 16 , 18 ) einen Profilabschnitt ( 19 ) zum Bewegen der Gewindeeinrichtung ( 15 ) aufweist. 3. Height adjustable artificial vertebral body according to claim 1 or 2, characterized in that the threaded means (15) between the threaded portions (16, 18) has a profile section (19) for moving the thread means (15).
4. Höhenverstellbarer Wirbelkörperersatz nach einem der Ansprü che 1 bis 3, dadurch gekennzeichnet, daß die Hülse ( 1 ) im Bereich zwischen den Widerlagerkörpern ( 9 , 10 ) einen deren Axialbewegung aufeinander zu begrenzenden Anschlag ( 6 ) aufweist. 4. Height adjustable artificial vertebral body according to one of Ansprü che 1 to 3, characterized in that the sleeve (1) in the region between the abutment bodies (9, 10) has an axial movement thereof toward limiting stop (6).
5. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 4, dadurch gekennzeichnet, daß der Profilabschnitt ( 19 ) einen ersten auf einer Seite des Anschlages ( 6 ) anliegenden ersten Rand ( 22 ) und einen auf der entgegengesetzten Seite anliegenden zweiten Rand ( 26 ) aufweist. 5. Height adjustable artificial vertebral body according to claim 4, characterized in that the profile section (19) has a first on one side of the stopper fitting (6) first edge (22) and an abutting on the opposite side of the second edge (26).
6. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Gewindeeinrichtung ( 15 ) in einer Stellung mit ihrem ersten Gewindeabschnitt ( 16 ) an dem Anschlag ( 6 ) bzw. dem Profilabschnitt ( 19 ) anliegt und eine durch den Pro filabschnitt ( 19 ) hindurchgeführten und mit ihm drehfest verbun dene Profilachse ( 17 ) aufweist und der zweite Gewindeabschnitt ( 18 ) auf dem Profilabschnitt ( 19 ) von der gegenüberliegenden Seite des Profilabschnittes ( 19 ) her auf die Profilachse ( 17 ) aufgescho ben ist und in der ersten Stellung auf der gegenüberliegenden Seite am Anschlag ( 6 ) bzw. dem Profilabschnitt ( 19 ) anliegt. 6. Height adjustable artificial vertebral body according to claim 4 or 5, characterized in that the threaded means (15) rests in a position with their first threaded portion (16) against the stop (6) and the profile portion (19) and a filabschnitt by the Pro ( 19) which is passed, and with it a rotationally fixed verbun dene profile axis (17) and the second threaded portion (18) on the profile section (19) from the opposite side of the profile section (19) her (to the profile axis 17) up scho is ben and first in the applied position on the opposite side of the stop (6) and the profile portion (19).
7. Höhenverstellbarer Wirbelkörperersatz nach einem der Ansprü che 1 bis 5, dadurch gekennzeichnet, daß der jeweilige äußere Rand der Widerlagerkörper ( 9 , 10 ) jeweils eine Mehrzahl von nach außen hervorstehenden Zacken ( 28 , 29 ) aufweist. 7. Height adjustable artificial vertebral body according to one of Ansprü che 1 to 5, characterized in that the respective outer edge of the abutment body (9, 10) each having a plurality of outwardly projecting teeth (28, 29).
8. Höhenverstellbarer Wirbelkörperersatz nach einem der Ansprü che 1 bis 7, dadurch gekennzeichnet, daß die mantelförmige Wandung wenigstens in den einander gegenüberliegenden Endbereichen Ausneh mungen ( 30 , 31 ) aufweisen. 8. Height adjustable artificial vertebral body according to one of Ansprü che 1 to 7, characterized in that the jacket-shaped wall of rules at least in the opposite end portions Ausneh (30, 31).
9. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Zacken ( 28 , 29 ) abtrennbare Ab schnitte ( 32 , 33 ) aufweisen. 9. Height adjustable artificial vertebral body according to claim 7 or 8, characterized in that the prongs (28, 29) separable from sections (32, 33).
10. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 9, da durch gekennzeichnet, daß die beiden einander gegenüberliegenden Ränder so gegeneinander geneigt sind, daß der Wirbelkörperersatz einen keilförmigen Querschnitt aufweist. 10. Height adjustable artificial vertebral body according to claim 9, as characterized by, that the two opposite edges are inclined against each other, that the artificial vertebral body having a wedge-shaped cross-section.
11. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 9, da durch gekennzeichnet, daß die Ausnehmungen ( 30 , 31 ) als sich im wesentlichen in Axialrichtung erstreckende Vierecke bzw. Rauten ausgebildet sind. 11. Height adjustable artificial vertebral body according to claim 9, as characterized by, that the recesses (30, 31) is formed in a substantially axially extending rectangles or rhombuses as.
DE19944409392 1994-03-18 1994-03-18 Height-adjustable vertebral body Withdrawn DE4409392A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944409392 DE4409392A1 (en) 1994-03-18 1994-03-18 Height-adjustable vertebral body

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19944409392 DE4409392A1 (en) 1994-03-18 1994-03-18 Height-adjustable vertebral body
PCT/EP1995/000744 WO1995025486A1 (en) 1994-03-18 1995-03-01 Height-adjustable body of a vertebra
TW085201637U TW294971U (en) 1994-03-18 1995-03-17 Height-adjustable body of a vertebra

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WO1996037170A1 (en) * 1995-05-24 1996-11-28 Lutz Biedermann Height-adjustable artificial vertebral body
WO1997015247A1 (en) * 1995-10-20 1997-05-01 Synthes Ag, Chur Intervertebral implant with compressible shaped hollow element
WO1997047258A1 (en) * 1996-06-07 1997-12-18 Ulrich, Heinrich Implant for filling a space between vertebrae
DE29616778U1 (en) * 1996-09-26 1998-01-29 Howmedica Gmbh Vertebral body spacer
WO1998048738A1 (en) * 1997-04-25 1998-11-05 Stryker France S.A. Two-part intersomatic implant
EP0904751A1 (en) * 1997-09-30 1999-03-31 Sulzer Orthopädie AG Tubular support body for bridging two vertebrae
WO1999038460A1 (en) 1998-01-30 1999-08-05 Königsee Implantate und Instrumente zur Ostheosynthese GmbH Height-adjustable vertebral implant
WO2001072246A1 (en) 2000-03-31 2001-10-04 Königsee Implantate und Instrumente zur Osteosynthese GmbH Variable-height vertebral implant
WO2001070139A3 (en) * 2000-03-22 2002-05-23 Christopher M Angelucci Skeletal reconstruction cages
US6660038B2 (en) 2000-03-22 2003-12-09 Synthes (Usa) Skeletal reconstruction cages
EP1949872A3 (en) * 2004-05-04 2008-10-01 BIEDERMANN MOTECH GmbH Flexible spacer
WO2009058578A1 (en) 2007-10-30 2009-05-07 Biospine, Llc Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
WO2009058576A1 (en) * 2007-10-30 2009-05-07 Biospine, Llc Footplate member and a method for use in a vertebral body replacement device
US7758648B2 (en) 2006-04-27 2010-07-20 Warsaw Orthopedic, Inc. Stabilized, adjustable expandable implant and method
US7846207B2 (en) 2003-02-06 2010-12-07 Synthes Usa, Llc Intervertebral implant
US7879096B2 (en) 2006-04-27 2011-02-01 Warsaw Orthopedic, Inc. Centrally driven expandable implant
US7914581B2 (en) 2006-04-27 2011-03-29 Warsaw Orthopedic, Inc. Expandable implant, instrument, and method
US7981157B2 (en) 2006-04-27 2011-07-19 Warsaw Orthopedic, Inc. Self-contained expandable implant and method
US8142435B2 (en) 2009-02-19 2012-03-27 Aesculap Implant Systems, Llc Multi-functional surgical instrument and method of use for inserting an implant between two bones
US8142441B2 (en) 2008-10-16 2012-03-27 Aesculap Implant Systems, Llc Surgical instrument and method of use for inserting an implant between two bones
US8337559B2 (en) 2005-04-21 2012-12-25 Globus Medical, Inc. Expandable vertebral prosthesis
US8591587B2 (en) 2007-10-30 2013-11-26 Aesculap Implant Systems, Llc Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
US8771357B2 (en) 2004-05-04 2014-07-08 Biedermann Technologies Gmbh & Co. Kg Flexible space holder
US9005295B2 (en) 2007-11-16 2015-04-14 DePuy Synthes Products, LLC Low profile intervertebral implant
US9039775B2 (en) 2003-03-31 2015-05-26 DePuy Synthes Products, Inc. Spinal fixation plates
US9192419B2 (en) 2008-11-07 2015-11-24 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
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WO1996037170A1 (en) * 1995-05-24 1996-11-28 Lutz Biedermann Height-adjustable artificial vertebral body
US5989290A (en) * 1995-05-24 1999-11-23 Biedermann; Lutz Height-adjustable artificial vertebral body
WO1997015247A1 (en) * 1995-10-20 1997-05-01 Synthes Ag, Chur Intervertebral implant with compressible shaped hollow element
DE19622827B4 (en) * 1996-06-07 2009-04-23 Ulrich, Heinrich Implant for insertion between vertebral bodies as a placeholder
WO1997047258A1 (en) * 1996-06-07 1997-12-18 Ulrich, Heinrich Implant for filling a space between vertebrae
EP0832622A3 (en) * 1996-09-26 1999-01-27 Howmedica GmbH A spinal cage assembly
DE29616778U1 (en) * 1996-09-26 1998-01-29 Howmedica Gmbh Vertebral body spacer
US6193755B1 (en) 1996-09-26 2001-02-27 Howmedica Gmbh Spinal cage assembly
US6824564B2 (en) 1997-04-25 2004-11-30 Stryker France, Sas Two-part intersomatic implant
WO1998048738A1 (en) * 1997-04-25 1998-11-05 Stryker France S.A. Two-part intersomatic implant
US8840666B2 (en) 1997-04-25 2014-09-23 Stryker France Two part intersomatic implant
US7056341B2 (en) 1997-04-25 2006-06-06 Stryker France Two part intersomatic implant
US6855168B2 (en) 1997-04-25 2005-02-15 Stryker France Intersomatic implants in two parts
US8449613B2 (en) 1997-04-25 2013-05-28 Stryker France Two part intersomatic implant
EP0904751A1 (en) * 1997-09-30 1999-03-31 Sulzer Orthopädie AG Tubular support body for bridging two vertebrae
US6193756B1 (en) 1997-09-30 2001-02-27 Sulzer Orthopaedie Ag Tubular support body for bridging two vertebrae
DE19803700A1 (en) * 1998-01-30 1999-08-19 Koenigsee Implantate & Instr Height-adjustable vertebral implant
WO1999038460A1 (en) 1998-01-30 1999-08-05 Königsee Implantate und Instrumente zur Ostheosynthese GmbH Height-adjustable vertebral implant
US6660038B2 (en) 2000-03-22 2003-12-09 Synthes (Usa) Skeletal reconstruction cages
US7014659B2 (en) 2000-03-22 2006-03-21 Synthes (Usa) Skeletal reconstruction cages
WO2001070139A3 (en) * 2000-03-22 2002-05-23 Christopher M Angelucci Skeletal reconstruction cages
WO2001072246A1 (en) 2000-03-31 2001-10-04 Königsee Implantate und Instrumente zur Osteosynthese GmbH Variable-height vertebral implant
US9572681B2 (en) 2002-02-19 2017-02-21 DePuy Synthes Products, Inc. Intervertebral implant
US10064740B2 (en) 2003-02-06 2018-09-04 DePuy Synthes Products, LLC Intervertebral implant
US8709085B2 (en) 2003-02-06 2014-04-29 DePuy Synthes Products, LLC Intervertebral implant
US7846207B2 (en) 2003-02-06 2010-12-07 Synthes Usa, Llc Intervertebral implant
US7862616B2 (en) 2003-02-06 2011-01-04 Synthes Usa, Llc Intervertebral implant
US8764831B2 (en) 2003-02-06 2014-07-01 DePuy Synthes Products, LLC Intervertebral implant
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US9463097B2 (en) 2003-02-06 2016-10-11 DePuy Synthes Products, Inc. Intervertebral implant
US9320549B2 (en) 2003-03-31 2016-04-26 DePuy Synthes Products, Inc. Spinal fixation plates
US9039775B2 (en) 2003-03-31 2015-05-26 DePuy Synthes Products, Inc. Spinal fixation plates
EP1949872A3 (en) * 2004-05-04 2008-10-01 BIEDERMANN MOTECH GmbH Flexible spacer
US8771357B2 (en) 2004-05-04 2014-07-08 Biedermann Technologies Gmbh & Co. Kg Flexible space holder
US8337559B2 (en) 2005-04-21 2012-12-25 Globus Medical, Inc. Expandable vertebral prosthesis
US7981157B2 (en) 2006-04-27 2011-07-19 Warsaw Orthopedic, Inc. Self-contained expandable implant and method
US7758648B2 (en) 2006-04-27 2010-07-20 Warsaw Orthopedic, Inc. Stabilized, adjustable expandable implant and method
US8366779B2 (en) 2006-04-27 2013-02-05 Warsaw Orthopedic, Inc. Expandable implant, instrument, and method
US8231681B2 (en) 2006-04-27 2012-07-31 Warsaw Orthopedic Self-contained expandable implant and method
US7879096B2 (en) 2006-04-27 2011-02-01 Warsaw Orthopedic, Inc. Centrally driven expandable implant
US7914581B2 (en) 2006-04-27 2011-03-29 Warsaw Orthopedic, Inc. Expandable implant, instrument, and method
US8268004B2 (en) 2006-04-27 2012-09-18 Warsaw Orthopedic, Inc. Stabilized, adjustable expandable implant and method
JP2013010014A (en) * 2007-10-30 2013-01-17 Aesculap Implant Systems Llc Vertebral body replacement device and method for use to maintain space between two vertebral bodies within spine
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US8591587B2 (en) 2007-10-30 2013-11-26 Aesculap Implant Systems, Llc Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
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WO2009058578A1 (en) 2007-10-30 2009-05-07 Biospine, Llc Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
WO2009058576A1 (en) * 2007-10-30 2009-05-07 Biospine, Llc Footplate member and a method for use in a vertebral body replacement device
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US10137003B2 (en) 2007-11-16 2018-11-27 DePuy Synthes Products, Inc. Low profile intervertebral implant
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US9005295B2 (en) 2007-11-16 2015-04-14 DePuy Synthes Products, LLC Low profile intervertebral implant
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US9414935B2 (en) 2008-11-07 2016-08-16 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
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US9192419B2 (en) 2008-11-07 2015-11-24 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
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US9848992B2 (en) 2010-12-21 2017-12-26 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
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TW294971U (en) 1997-01-01

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