DE19604246A1 - Distanzhaltendes Implantat zum Ersetzen von fehlenden Wirbelknochen - Google Patents
Distanzhaltendes Implantat zum Ersetzen von fehlenden WirbelknochenInfo
- Publication number
- DE19604246A1 DE19604246A1 DE19604246A DE19604246A DE19604246A1 DE 19604246 A1 DE19604246 A1 DE 19604246A1 DE 19604246 A DE19604246 A DE 19604246A DE 19604246 A DE19604246 A DE 19604246A DE 19604246 A1 DE19604246 A1 DE 19604246A1
- Authority
- DE
- Germany
- Prior art keywords
- elements
- implant
- implant according
- grooves
- outer element
- 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
Links
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special 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
- A61F2/4611—Special 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
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
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- A61F2/00—Filters 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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- A61F2002/30331—Connections 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
- A61F2002/30362—Connections 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
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- A61F2002/30362—Connections 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
- A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/30398—Sliding
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections 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
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- A61F2/00—Filters 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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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
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- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
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-
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
Description
Die Erfindung betrifft ein distanzhaltendes Implantat zum
Ersetzen von fehlenden Wirbelknochen, welches relativ
zueinander in axialer Richtung bewegbare und festlegbare
Elemente aufweist.
Es ist bekannt, daß die infolge von Verletzungen oder
Entfernung von Geschwulsten entstehenden Knochenausfälle durch
aus einem anderen Teil des Knochensystems entnommene
körpereigene Knochen (Transplantat), Alloplastik und/oder
distanzhaltende mechanische Elemente ersetzt werden können.
Auch bei der Verwendung von körpereigener oder alloplastischer
Materie ist ein Abstützen der die Knochenausfallstelle
umgebenden Teile erforderlich, da die Eingliederung der
autologen Transplantate eine längere Zeit beansprucht und deren
sofortige Belastung nicht möglich ist.
Zu diesem Zweck werden in bekannter Weise aus einem Titannetz
gefertigte Zylinder verwendet, welche einerseits das zwischen
die Wirbelknochen implantierte Material umgeben und
gleichzeitig die benachbarten Wirbelknochen mechanisch
abstützen. Derartige Zylinder aus Titannetz müssen jedoch
gemeinsam mit Knochenschrauben und Fixierstäben verwendet
werden, wodurch ihre Anwendung außerordentlich kompliziert und
zeitaufwendig wird.
Gemäß einer anderen bekannten Lösung wird die Knochenfehlstelle
durch distanzhaltende Elemente ersetzt, die eine einstellbare
Länge aufweisen und mit Klauen versehen sind. Die Länge der
distanzhaltenden Elemente kann mittels Schraubenbefestigung an
beiden Seiten des Implantates eingestellt werden, was unter
Operationsbedingungen äußerst schwierig ist.
Die Erfindung hat deshalb zum Ziel, eine Vorrichtung zum
Aufrechterhalten des normalen Abstands zwischen den Wirbeln
(distanzhaltendes Implantat) auszubilden, die außerordentlich
einfach aufgebaut ist und auch unter Operationsbedingungen
schnell, einfach und sicher implantiert werden kann.
Die gestellte Aufgabe wird durch ein distanzhaltendes Implantat
zum Ersetzen von fehlenden Wirbeln gelöst, das zwei Elemente
aufweist, die relativ zueinander in axialer Richtung bewegbar
und festlegbar sind, wobei erfindungsgemäß die Elemente
ineinander angeordnet werden können und ihre einander
berührenden Flächen mit ineinander einpaßbaren Formgebungen
versehen sind, die derart zusammenwirken, daß ein
Auseinanderziehen der Elemente ermöglicht, ihr Zusammenschieben
dagegen verhindert wird.
Bei einer bevorzugten Ausführungsform sind die Elemente
Hohlkörper, wobei an der inneren Mantelfläche des äußeren
Elementes im Querschnitt sägezahnförmige Nuten ausgebildet
sind, und an dem dünnwandigen inneren Element im Querschnitt
sägezahnförmige Rippen ausgebildet sind, die eine der Gestalt
der Nuten zugeordnete bzw. sie ergänzende Form aufweisen.
Bei einer weiteren vorteilhaften Ausführungsform der Erfindung
weist die innere Mantel fläche des äußeren Elements mindestens
eine axial ausgerichtete Rippe auf, wohingegen die Wand des
inneren Elements mindestens einen axial ausgerichteten
komplementären Schlitz aufweist, in den die Rippe eingreifen
kann, so daß die beiden Elemente in ihrer Lage fixiert sind.
Bei einer anderen Ausführungsform der Erfindung ist ein Ende
des äußeren Elements mit einem Boden verschlossen, dessen
Außenseite mit Eingriffsklauen versehen ist, und ein Ende des
inneren Elements ist ebenfalls mit einem Boden verschlossen,
dessen Außenseite mit Eingriffsklauen versehen ist. Es können
jedoch auch solche Elemente verwendet werden, bei denen beide
Enden offen sind, wobei an ihrem einen Ende jedoch ein mit
Klauen oder einem Stützfuß versehener Pfropfen angeordnet ist.
Bei einer bevorzugten Ausführungsform der Erfindung sind die
Elemente zylinderförmig und weisen einen zylindrischen Hohlraum
auf, während die sägezahnförmigen Nuten als Kreisnuten und die
sägezahnförmigen Rippen als umlaufende Rippen ausgebildet sind.
Weitere Merkmale und Details der Erfindung werden nachstehend
anhand eines Ausführungsbeispiels in Verbindung mit den
Zeichnung näher erläutert. In der Zeichnung zeigen:
Fig. 1 ein äußeres Element eines erfindungsgemäßen
Implantates in Schnittdarstellung,
Fig. 2 ein inneres Element eines erfindungsgemäßen
Implantates in Halbschnittdarstellung, und
Fig. 3 ein erfindungsgemäßes Implantat in
Schnittdarstellung.
Das in den Figuren dargestellte äußere Element 1 und das innere
Element 2 sind bei der gezeigten Ausführungsform aus den
Zylindern 3 bzw. 4 ausgebildet. Die äußere Mantelfläche des
äußeren Elementes 1 ist zylindrisch, in seine innere, ebenfalls
zylindrische Mantelfläche sind Nuten 5 eingearbeitet. Die Nuten
5 sind im Querschnitt sägezahnförmig ausgebildet, wobei die
Tiefe der Nuten jeweils in Richtung auf das Ende, in das das
innere Element 2 eingeführt wird, abnimmt. Der Zylinder 3 ist
unten mit einem Boden 6 abgeschlossen. Der Boden 6 ist mit
Klauen 7 versehen. Auf der äußeren Mantelfläche des Zylinders 3
sind einander gegenüberliegend zwei entlang von Mantellinien
verlaufende Nuten 8 ausgebildet, so daß auf der Innenseite zwei
vorspringende Rippen 8a geformt sind.
Aus Fig. 2 ist ersichtlich, daß der Hohlraum des Zylinders 4
des inneren Elementes 2 ebenfalls von einem Boden 9 begrenzt
ist, dessen Außenseite mit Klauen 10 versehen ist. An dem
unteren Teil der äußeren Mantelfläche des Zylinders 4
sind Rippen 11 angeordnet. Diese Rippen 11 sind im Querschnitt
ebenfalls sägezahnförmig und passen in die Nuten 5 des äußeren
Elementes 1. Der Zylinder 4 des inneren Elementes 2 weist eine
dünnere Wand auf als der Zylinder 3 des äußeren Elementes 1 und
an seiner Mantelfläche sind fast über die ganze Länge Schlitze
12 ausgebildet. Die zusammen durch die dünne Wand des Zylinders
4 und die Schlitze 12 sichergestellte elastische Ausbildung
ermöglicht es, wenn die Elemente einmal ineinander eingesetzt
sind, daß das innere Element 2 aus dem äußeren Element 1
herausbewegbar ist, wobei die Rippen 11 des inneren Elementes 2
aus den Nuten 5 des äußeren Elementes 1 herausspringen und in
die jeweils dahinterliegenden Nuten einrasten. Somit bilden das
innere Element 1 und das äußere Element 2 ein
längenveränderliches und -verstellbares distanzhaltendes
Implantat, das gegen ein Zusammenschieben verriegelt ist, aber
durch Verlagern des Elements 2 stufenweise auseinandergezogen
werden kann.
Dadurch, daß die Rippen 8a des äußeren Elementes 1 und die
Schlitze 12 des inneren Elementes 2 miteinander in Deckung
gebracht werden, kann das Implantat in der gewünschten Lage
fixiert werden, ohne daß zusätzliche Befestigungsmittel
erforderlich sind.
Das Einsetzen kann im konkreten Fall so erfolgen, daß das
Implantat in vollkommen zusammengeschobenem Zustand des äußeren
und inneren Elementes an die Stelle der Knochenfehlstelle
zwischen die nächst benachbarten Wirbelknochen eingefügt wird
und die Elemente mittels einer Zange so weit auseinandergezogen
werden, bis die benachbarten Wirbelknochen in die gewünschte
Position gelangen. Das Einsetzen besteht somit praktisch nur
aus zwei einfachen Arbeitsschritten, welche auch unter
Operationsbedingungen einfach und sicher durchgeführt werden
können. Erforderlichenfalls können die Elemente gegeneinander
in der oben erwähnten Weise unter Zusammenwirken der Rippen 8
und der Schlitze 12 verkeilt werden.
Im Vergleich mit den bekannten Implantaten vereinfacht die
erfindungsgemäße Lösung in außerordentlicher Weise die
Durchführung der erforderlichen Arbeitsabläufe beim Einsetzen
des Implantates dadurch, daß zur Festlegung der relativ
zueinander bewegbaren Elemente kein gesonderter Arbeitsschritt
erforderlich ist und der einmal eingestellte Abstand sich durch
eine falsche Bewegung oder aus sonstigen Gründen nicht
verändern kann.
Natürlich kann das Implantat in zahlreichen Varianten
ausgebildet sein, z. B. auf die Weise, daß anstelle der Klauen
andere Stützelemente z. B. Stützfüße verwendet werden. Die die
Elemente bildenden rohrförmigen Körper können an beiden Seiten
offen sein, in diesem Fall können die Stützflächen oder Klauen
pfropfenartig in das eine Ende der Elemente eingefügt werden.
Claims (5)
1. Distanzhaltendes Implantat zum Ersetzen von fehlenden
Wirbelknochen, das Elemente aufweist, die relativ zueinander
axial bewegbar und festlegbar sind,
dadurch gekennzeichnet, daß
die Elemente (1, 2) ineinander angeordnet werden können und
ihre einander berührenden Flächen mit miteinander in Eingriff
bringbaren Formgestaltungen versehen sind, die derart
zusammenwirken, daß ein Auseinanderziehen der Elemente
ermöglicht, ihr Zusammenschieben dagegen verhindert wird.
2. Implantat nach Anspruch 1 , dadurch gekennzeichnet, daß die
Elemente Hohlkörper sind, wobei an der inneren Mantelfläche des
äußeren Elementes (1) sägezahnförmige Nuten (5) ausgebildet
sind und an der äußeren Mantelfläche des inneren Elements (2)
sägezahnförmige Rippen (11) ausgebildet sind, die eine an die
Gestalt der Nuten (5) angepaßte bzw. diese ergänzende Form
aufweisen.
3. Implantat nach Anspruch 1 oder 2, dadurch gekennzeichnet,
daß auf der inneren Mantelfläche des äußeren Elements (1)
mindestens eine axiale Rippe (8a) ausgebildet ist und daß die
Wand des inneren Elements (2) mindestens einen axialen Schlitz
(12) aufweist, in den die Rippe (8a) eingreifen kann, so daß
die Lage der beiden Elemente zueinander fixiert ist.
4. Implantat nach einem der Ansprüche 1 bis 3, dadurch
gekennzeichnet, daß beide Enden wenigstens eines der Elemente
(1, 2) offen sind und an einem der Enden ein mit axialen Klauen
(7) oder einem Stützfuß versehener Pfropfen (6) angeordnet ist.
5. Implantat nach einem der Ansprüche 1 bis 4, dadurch
gekennzeichnet, daß wenigstens ein Ende eines Elements (1 , 2)
mit einem Boden (9) abgeschlossen und an seiner äußeren Seite
mit Klauen (7) versehen ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29623988U DE29623988U1 (de) | 1995-02-06 | 1996-02-06 | Distanzhaltendes Implantat zum Ersetzen von fehlenden Wirbelknochen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9501326 | 1995-02-06 | ||
FR9501326A FR2730158B1 (fr) | 1995-02-06 | 1995-02-06 | Dispositif de maintien d'un ecartement normal entre les vertebres et destine au remplacement de vertebres manquantes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19604246A1 true DE19604246A1 (de) | 1996-08-08 |
DE19604246B4 DE19604246B4 (de) | 2006-06-01 |
Family
ID=9475859
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19604246A Expired - Fee Related DE19604246B4 (de) | 1995-02-06 | 1996-02-06 | Distanzhaltendes Implantat zum Ersetzen von fehlenden Wirbelknochen |
DE29623988U Expired - Lifetime DE29623988U1 (de) | 1995-02-06 | 1996-02-06 | Distanzhaltendes Implantat zum Ersetzen von fehlenden Wirbelknochen |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29623988U Expired - Lifetime DE29623988U1 (de) | 1995-02-06 | 1996-02-06 | Distanzhaltendes Implantat zum Ersetzen von fehlenden Wirbelknochen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5723013A (de) |
JP (1) | JPH08266564A (de) |
KR (1) | KR960030899A (de) |
DE (2) | DE19604246B4 (de) |
FR (1) | FR2730158B1 (de) |
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WO1998046173A1 (de) * | 1997-04-15 | 1998-10-22 | Synthes Ag Chur | Teleskopierende wirbelprothese |
WO2000023013A1 (de) * | 1998-10-15 | 2000-04-27 | Synthes Ag Chur | Teleskopierende wirbelprothese |
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US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
AU2017251734B2 (en) | 2016-10-26 | 2022-10-20 | Howmedica Osteonics Corp. | Expandable interbody implant with lateral articulation |
EP3456294A1 (de) | 2017-09-15 | 2019-03-20 | Stryker European Holdings I, LLC | Mit aushärtendem material expandierte zwischenwirbelkörperfusionsvorrichtung |
CN107550603B (zh) * | 2017-09-29 | 2024-01-23 | 辽宁禾润新材料科技有限公司 | 一种人工肋骨 |
US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
US11219531B2 (en) | 2019-04-10 | 2022-01-11 | Wenzel Spine, Inc. | Rotatable intervertebral spacing implant |
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DE2713837C2 (de) * | 1977-03-25 | 1978-10-26 | Erhard Dr. 1000 Berlin Westerhoff | Antriebsvorrichtung für ein Distraktionsgerät |
US4567884A (en) * | 1982-12-01 | 1986-02-04 | Edwards Charles C | Spinal hook |
FR2575059B1 (fr) * | 1984-12-21 | 1988-11-10 | Daher Youssef | Dispositif d'etaiement utilisable dans une prothese vertebrale |
US6923810B1 (en) * | 1988-06-13 | 2005-08-02 | Gary Karlin Michelson | Frusto-conical interbody spinal fusion implants |
US4892545A (en) * | 1988-07-14 | 1990-01-09 | Ohio Medical Instrument Company, Inc. | Vertebral lock |
US4870957A (en) * | 1988-12-27 | 1989-10-03 | Marlowe Goble E | Ligament anchor system |
US5059193A (en) * | 1989-11-20 | 1991-10-22 | Spine-Tech, Inc. | Expandable spinal implant and surgical method |
DE4012622C1 (en) * | 1990-04-20 | 1991-07-18 | Eska Medical Luebeck Medizintechnik Gmbh & Co, 2400 Luebeck, De | Two-part metal vertebra implant - has parts locked by two toothed racks, pre-stressed by elastic cushion between both implant parts |
US5290312A (en) * | 1991-09-03 | 1994-03-01 | Alphatec | Artificial vertebral body |
DE9490219U1 (de) * | 1993-08-03 | 1996-05-15 | Howmedica | Gesperre-Kompressionsvorrichtung |
-
1995
- 1995-02-06 FR FR9501326A patent/FR2730158B1/fr not_active Expired - Fee Related
-
1996
- 1996-02-05 JP JP8018968A patent/JPH08266564A/ja active Pending
- 1996-02-06 DE DE19604246A patent/DE19604246B4/de not_active Expired - Fee Related
- 1996-02-06 DE DE29623988U patent/DE29623988U1/de not_active Expired - Lifetime
- 1996-02-06 KR KR1019960002823A patent/KR960030899A/ko not_active Application Discontinuation
- 1996-02-06 US US08/595,955 patent/US5723013A/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998046173A1 (de) * | 1997-04-15 | 1998-10-22 | Synthes Ag Chur | Teleskopierende wirbelprothese |
AU723279B2 (en) * | 1997-04-15 | 2000-08-24 | Synthes Gmbh | Telescopic vertebral prosthesis |
US6176881B1 (en) | 1997-04-15 | 2001-01-23 | Synthes | Telescopic vertebral prosthesis |
WO2000023013A1 (de) * | 1998-10-15 | 2000-04-27 | Synthes Ag Chur | Teleskopierende wirbelprothese |
US6524341B2 (en) | 1998-10-15 | 2003-02-25 | Synthes (Usa) | Telescopic vertebral prosthesis |
US6866682B1 (en) | 1999-09-02 | 2005-03-15 | Stryker Spine | Distractable corpectomy device |
US7648529B2 (en) | 1999-09-02 | 2010-01-19 | Stryker Spine | Telescoping spinal implant |
EP1917933A3 (de) * | 2002-06-14 | 2009-09-23 | Baumgart, Rainer, Dipl.-Ing. Dr. med. | Implantierbare Prothese |
US9877840B2 (en) | 2008-09-04 | 2018-01-30 | DePuy Synthes Products, Inc. | Adjustable intervertebral implant |
Also Published As
Publication number | Publication date |
---|---|
US5723013A (en) | 1998-03-03 |
FR2730158B1 (fr) | 1999-11-26 |
DE29623988U1 (de) | 2001-03-08 |
KR960030899A (ko) | 1996-09-17 |
DE19604246B4 (de) | 2006-06-01 |
JPH08266564A (ja) | 1996-10-15 |
FR2730158A1 (fr) | 1996-08-09 |
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