DE4323034C1 - Platzhalter, insbesondere für eine Bandscheibe - Google Patents
Platzhalter, insbesondere für eine BandscheibeInfo
- Publication number
- DE4323034C1 DE4323034C1 DE4323034A DE4323034A DE4323034C1 DE 4323034 C1 DE4323034 C1 DE 4323034C1 DE 4323034 A DE4323034 A DE 4323034A DE 4323034 A DE4323034 A DE 4323034A DE 4323034 C1 DE4323034 C1 DE 4323034C1
- Authority
- DE
- Germany
- Prior art keywords
- placeholder
- intervertebral disc
- wall
- diamonds
- edges
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/06—Titanium or titanium alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30125—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30133—Rounded shapes, e.g. with rounded corners kidney-shaped or bean-shaped
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30224—Three-dimensional shapes cylindrical
- A61F2002/3023—Three-dimensional shapes cylindrical wedge-shaped cylinders
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30224—Three-dimensional shapes cylindrical
- A61F2002/30235—Three-dimensional shapes cylindrical tubular, e.g. sleeves
-
- 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
- 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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
- A61F2002/30909—Nets
- A61F2002/30912—Nets made of expanded metal, e.g. diamond mesh or metal nets having lozenge-shaped apertures
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0015—Kidney-shaped, e.g. bean-shaped
-
- 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
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/38—Materials or treatment for tissue regeneration for reconstruction of the spine, vertebrae or intervertebral discs
Description
Die Erfindung betrifft einen Platzhalter nach dem Oberbegriff des
Patentanspruches 1.
Ein Platzhalter mit den Merkmalen des Oberbegriffes des
Patentanspruches 1 ist aus der EP 0 268 115 B1 bekannt. Der dort
beschriebene Platzhalter dient insbesondere zum Ersatz eines
Wirbelkörpers. Die beiden Ränder des Mantels sind jeweils parallel
ausgebildet.
Aufgrund der Erfindung ist es, einen Platzhalter der eingangs
beschriebenen Art so auszubilden, daß er insbesondere auch zum
Ersatz einer Bandscheibe einsetzbar ist.
Diese Aufgabe wird durch den in Patentanspruch 1 gekennzeichneten
Platzhalter gelöst.
Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.
Weitere Ausbildungen und Zweckmäßigkeiten der Erfindung ergeben sich
aus der Beschreibung eines Ausführungsbeispieles anhand der
Figuren. Von den Figuren zeigt
Fig. 1 eine Seitenansicht des Platzhalters;
Fig. 2 eine Seitenansicht des Platzhalters mit Scherlinien
und getrimmter Platzhalterform;
Fig. 3 den Platzhalter mit Scherlinien und einer
abgewandelt getrimmten Form; und
Fig. 4 bis Fig. 6 zwischen Wirbelkörper eingesetzte Platzhalter mit
verschiedener Trimmung.
Der Platzhalter weist eine mantelförmige Wandung 1 auf. Der Querschnitt
des von dem Mantel umgebenen Hohlraumes ist vorzugsweise
oval ausgebildet. In abgewandelten Ausführungsformen ist er
nierenförmig bzw. nahezu zylindrisch. Der Mantel 1 weist in der
aus den Figuren ersichtlichen Weise sich mit ihrer Längsdiagonalen
parallel zur Achse 2 des Platzhalters erstreckende rautenförmige
Ausnehmung 3 auf. Wie aus den Figuren ersichtlich ist, ist die
Höhe der Rauten 4 an der einen Seite am größten und die Höhe der
Rauten 5 an der gegenüberliegenden Seite am kleinsten. Die dazwischen
liegenden Rauten sind so ausgebildet, daß die Höhe kontinuerlich
von den größten Rauten zu den kleinsten Rauten abnimmt.
Die an den Rändern oben und unten hervorstehenden Enden der Rauten
stehen als Zacken 6 nach oben bzw. unten hervor. Wie aus den
Figuren ersichtlich ist, weist jede Zacke 6 einen sich im
wesentlichen parallel zur Achse 2 erstreckenden überstehenden
Abschnitt 7 auf. Die Abschnitte haben im wesentlichen jeweils eine
gleiche Länge. Aufgrund der unterschiedlichen Höhe der Rauten
ergibt sich somit ein Platzhalter, dessen die beiden
zackenförmigen Bereiche begrenzenden Ränder zueinander unter einem
Winkel geneigt sind, so daß der Querschnitt des Platzhalters
keilförmig ausgebildet ist. Vorzugsweise liegt der Keilwinkel im
Bereich von 8° bis 12° und insbesondere im Bereich von 9° bis 11°
und ganz besonders im Bereich von 10°.
Die Länge der sich in axialer Richtung erstreckenden Abschnitt 7
ist so gewählt, daß in der aus Fig. 2 ersichtlichen Weise beim
Abscheren der Abschnitte 7 entlang der Linien 10 und 11 im Bereich
der Rauten 4 mit der größten Höhe und teilweisem Abschneiden der
Abschnitte der Rauten, die zwischen der Raute 4 mit der größten
Höhe und der Rauten 5 mit der kleinsten Höhe liegen, ein
Platzhalter 8 mit parallelen Rändern und somit einem rechteckigen
Querschnitt entsteht. Bei dieser Länge der Abschnitte 7 kann
andererseits beim Abscheren der zu den Rauten 5 mit der kleinsten
Höhe und einem teilweisen Abscheren der Abschnitte der zwischen
der Raute 4 mit der größten Höhe und der Rauten 5 mit der kleinsten
Höhe liegendden Rauten entlang der Linien 12 und 13 ein Platzhalter
9 gebildet werden, dessen Keilwinkel größer als der des
Ausgangsmodells ist und vorzugsweise im Bereich von 14° bis 16°
und insbesondere bei etwa 15° liegt.
Als Material für die Platzhalter ist insbesondere ein Titanblech
bzw. ein Titanrohr oder auch ein körperresorbierendes
Kunststoffmaterials gewählt.
Der so beschriebene Platzhalter wird von dem Operateur durch
Abschneiden der Zacken entlang der gestrichelt angedeuteten
Schnittlinien 10, 11 bzw. 12, 13 zum Trimmen in die gewünschte
Form 8 bzw. 9 abgeschnitten. Anschließend kann der so getrimmte
Platzhalter in der Fig. 4 und 6 oder in seiner Ausgangsform in
Fig. 5 zwischen die Wirbelkörper eingesetzt werden.
Die oben beschriebene Ausgestaltung des Platzhalters ermöglicht
nicht nur ein leichtes Anpassen an verschiedene Keilformen eines
insbesondere für die Bandscheibe zu verwendenden Platzhalters,
sondern sie ermöglicht auch eine erhebliche Vereinfachung der
Lagerhaltung, da der Operateur nur eine einzige Form eines Platzhalters
vorrätig halten muß.
Claims (6)
1. Platzhalter, insbesondere für eine Bandscheibe, mit einer
mantelförmigen Wandung (1) mit einer Mehrzahl von Ausnehmungen (4,
5) in der Wandung und einer Mehrzahl von Zacken (6) an den beiden
Rändern der Wandung,
dadurch gekennzeichnet, daß die Zacken (6) abtrennbare Abschnitte
(7) aufweisen.
2. Platzhalter, insbesondere für eine Bandscheibe, nach Anspruch
1,
dadurch gekennzeichnet, daß die beiden Ränder so gegeneinander
geneigt sind, daß der Platzhalter einen keilförmigen Querschnitt
aufweist.
3. Platzhalter, insbesondere für eine Bandscheibe, nach Anspruch
1 oder 2,
dadurch gekennzeichnet, daß die Ausnehmungen in der Wandung (1)
als sich im wesentlichen in Axialrichtung des Hohlkörpers
erstreckende Vierecke bzw. Rauten (5) ausgebildet sind.
4. Platzhalter, insbesondere für eine Bandscheibe, nach Anspruch
2 oder 3,
dadurch gekennzeichnet, daß die Neigung zwischen etwa 8° und etwa
12° beträgt.
5. Platzhalter, insbesondere für eine Bandscheibe, nach Anspruch
4, dadurch gekennzeichnet, daß die Neigung etwa 9° bis 11° beträgt.
6. Platzhalter, insbesondere für eine Bandscheibe, nach einem der
Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß der Querschnitt des von dem Mantel
umgebenen Hohlraumes im wesentlichen oval ausgebildet ist.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4323034A DE4323034C1 (de) | 1993-07-09 | 1993-07-09 | Platzhalter, insbesondere für eine Bandscheibe |
CA002143431A CA2143431C (en) | 1993-07-09 | 1994-06-21 | Space keeper, in particular for an intervertebral disk |
DE59408746T DE59408746D1 (de) | 1993-07-09 | 1994-06-21 | Platzhalter für eine bandscheibe |
ES94919649T ES2139078T3 (es) | 1993-07-09 | 1994-06-21 | Fijador para disco intervertebral. |
KR1019950700917A KR950703308A (ko) | 1993-07-09 | 1994-06-21 | 특히, 추간원판을 위한 공간 유지기(space keeper, in particular for an intervertebral disk) |
PCT/EP1994/002021 WO1995001763A1 (de) | 1993-07-09 | 1994-06-21 | Platzhalter, insbesondere für eine bandscheibe |
JP7503785A JP2769926B2 (ja) | 1993-07-09 | 1994-06-21 | 特に椎間板のためのスペース維持具 |
EP94919649A EP0659065B1 (de) | 1993-07-09 | 1994-06-21 | Platzhalter für eine bandscheibe |
KR1019950700917A KR0149620B1 (ko) | 1993-07-09 | 1994-06-21 | 추간원판 대체용 공간 유지 기구 |
AT94919649T ATE184472T1 (de) | 1993-07-09 | 1994-06-21 | Platzhalter für eine bandscheibe |
US08/632,327 US5609637A (en) | 1993-07-09 | 1996-04-17 | Space keeper, in particular for an intervertebral disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4323034A DE4323034C1 (de) | 1993-07-09 | 1993-07-09 | Platzhalter, insbesondere für eine Bandscheibe |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4323034C1 true DE4323034C1 (de) | 1994-07-28 |
Family
ID=6492432
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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DE4323034A Expired - Lifetime DE4323034C1 (de) | 1993-07-09 | 1993-07-09 | Platzhalter, insbesondere für eine Bandscheibe |
DE59408746T Expired - Lifetime DE59408746D1 (de) | 1993-07-09 | 1994-06-21 | Platzhalter für eine bandscheibe |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE59408746T Expired - Lifetime DE59408746D1 (de) | 1993-07-09 | 1994-06-21 | Platzhalter für eine bandscheibe |
Country Status (9)
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---|---|
US (1) | US5609637A (de) |
EP (1) | EP0659065B1 (de) |
JP (1) | JP2769926B2 (de) |
KR (2) | KR0149620B1 (de) |
AT (1) | ATE184472T1 (de) |
CA (1) | CA2143431C (de) |
DE (2) | DE4323034C1 (de) |
ES (1) | ES2139078T3 (de) |
WO (1) | WO1995001763A1 (de) |
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DE19519101A1 (de) * | 1995-05-24 | 1996-11-28 | Harms Juergen | Höhenverstellbarer Wirbelkörperersatz |
WO1996037170A1 (de) * | 1995-05-24 | 1996-11-28 | Lutz Biedermann | Höhenverstellbarer wirbelkörperersatz |
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DE19519101B4 (de) * | 1995-05-24 | 2009-04-23 | Harms, Jürgen, Prof. Dr. | Höhenverstellbarer Wirbelkörperersatz |
DE29616778U1 (de) * | 1996-09-26 | 1998-01-29 | Howmedica Gmbh | Wirbelkörperplatzhalter |
EP0832622A3 (de) * | 1996-09-26 | 1999-01-27 | Howmedica GmbH | Wirbelkäfigsatz |
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DE19957339A1 (de) * | 1999-11-29 | 2001-06-13 | Franz Copf | Cageelement, sowie Satz von Cageelementen |
DE19957339C2 (de) * | 1999-11-29 | 2002-03-28 | Franz Copf | Cageelement, sowie Satz von Cageelementen |
DE20117773U1 (de) * | 2001-10-31 | 2003-03-20 | Koenigsee Implantate & Instr | Implantat zur Stabilisierung der Vertebrae cervicales |
DE10242331A1 (de) * | 2002-09-12 | 2004-04-01 | Biedermann Motech Gmbh | Platzhalter für Wirbelkörper oder Bandscheiben |
DE10242331B4 (de) * | 2002-09-12 | 2005-10-20 | Biedermann Motech Gmbh | Platzhalter für Wirbelkörper oder Bandscheiben |
US8821576B2 (en) | 2002-09-12 | 2014-09-02 | Biedermann Technologies Gmbh & Co. Kg | Intervertebral disk prosthesis |
US8613768B2 (en) | 2002-09-12 | 2013-12-24 | Biedermann Technologies Gmbh & Co. Kg | Space keeper for vertebrae or intervertebral disks |
EP1398008A1 (de) * | 2002-09-12 | 2004-03-17 | BIEDERMANN MOTECH GmbH | Platzhalter für Wirbelkörper oder Bandscheiben |
US7828846B2 (en) | 2002-09-12 | 2010-11-09 | Biedermann Motech Gmbh | Space keeper for vertebrae or intervertebral disks |
US8551174B2 (en) | 2003-08-12 | 2013-10-08 | Biedermann Technologies Gmbh & Co. Kg | Space holder for vertebrae or intervertebral discs |
US7896918B2 (en) | 2003-08-12 | 2011-03-01 | Biedermann Motech Gmbh | Space holder for vertebrae or intervertebral discs |
US9078762B2 (en) | 2003-08-12 | 2015-07-14 | Biedermann Technologies Gmbh & Co. Kg | Space holder for vertebrae or intervertebral discs |
EP1949872A3 (de) * | 2004-05-04 | 2008-10-01 | BIEDERMANN MOTECH GmbH | Flexibler Platzhalter |
EP1949872A2 (de) | 2004-05-04 | 2008-07-30 | BIEDERMANN MOTECH GmbH | Flexibler Platzhalter |
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 |
US8152849B2 (en) | 2005-10-26 | 2012-04-10 | Biedermann Motech Gmbh & Co. Kg | Implant with one piece swivel joint |
EP1943986A2 (de) | 2005-10-26 | 2008-07-16 | BIEDERMANN MOTECH GmbH | Implantat mit einstückigem Drehgelenk |
EP1943987A2 (de) | 2005-10-26 | 2008-07-16 | BIEDERMANN MOTECH GmbH | Implantat mit einstückigem Drehgelenk |
US9597198B2 (en) | 2006-02-15 | 2017-03-21 | Ldr Medical | Transforaminal intersomatic cage for an intervertebral fusion graft and an instrument for implanting the cage |
US10758363B2 (en) | 2006-02-15 | 2020-09-01 | Ldr Medical | Transforaminal intersomatic cage for an intervertebral fusion graft and an instrument for implanting the cage |
Also Published As
Publication number | Publication date |
---|---|
US5609637A (en) | 1997-03-11 |
JP2769926B2 (ja) | 1998-06-25 |
CA2143431A1 (en) | 1995-01-19 |
ES2139078T3 (es) | 2000-02-01 |
JPH07508679A (ja) | 1995-09-28 |
WO1995001763A1 (de) | 1995-01-19 |
KR0149620B1 (ko) | 1998-10-01 |
EP0659065A1 (de) | 1995-06-28 |
DE59408746D1 (de) | 1999-10-21 |
EP0659065B1 (de) | 1999-09-15 |
CA2143431C (en) | 1999-03-23 |
ATE184472T1 (de) | 1999-10-15 |
KR950703308A (ko) | 1995-09-20 |
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