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DE999796T1 - Implantat, insbesondere knochenplatte für die vordere seite der wirbelsäule - Google Patents

Implantat, insbesondere knochenplatte für die vordere seite der wirbelsäule

Info

Publication number
DE999796T1
DE999796T1 DE0999796T DE98940342T DE999796T1 DE 999796 T1 DE999796 T1 DE 999796T1 DE 0999796 T DE0999796 T DE 0999796T DE 98940342 T DE98940342 T DE 98940342T DE 999796 T1 DE999796 T1 DE 999796T1
Authority
DE
Germany
Prior art keywords
elements
implant according
vertebrae
implant
plate
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.)
Pending
Application number
DE0999796T
Other languages
English (en)
Inventor
Christian Baccelli
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.)
Stryker Spine SAS
Original Assignee
Dimso SA
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 Dimso SA filed Critical Dimso SA
Publication of DE999796T1 publication Critical patent/DE999796T1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8023—Variable length plates adjustable in both directions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
    • A61B17/7059—Cortical plates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
    • A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/90—Identification means for patients or instruments, e.g. tags
    • A61B90/92—Identification means for patients or instruments, e.g. tags coded with colour
    • 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
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
    • 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
    • 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
    • A61F2/28—Bones
    • A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Cardiology (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)

Claims (19)

DE/EP0 999796TV EP 98 940 342.3/0 999 796 DIMSO (Distribution Medicale du Sud-Ouest) Patentansprüche:
1. Implantat für die Osteosythese der Wirbelsäule enthaltend eine Platte (10, 10), welche mit Hilfe einer Befestigungsschraube für Knochen (20) an zwei Wirbelknochen, wie zum Beispiel den Halswirbelknochen befestigt ist,
dadurch gekennzeichnet, dass
diese Platte zwei Elemente (10, 10) aufweist, die jeweils mindestens eine Bohrung (111) für eine Befestigungsschraube (20) für Knochen aufweist, wobei jedes dieser Elemente gegenüber dem anderen Element in einer Richtung gleiten kann, welche einer Annäherung oder Abspreizung der beiden Wirbelknochen untereinander entspricht, und dass diese beiden Elemente mit Mitteln (141, 30) ausgestattet sind, um diese Elemente in einer jeweiligen Stellung unter einer Vielzahl von Positionen zu blockieren, welche in einem bestimmte Gleitabstand zwischen diesen Elementen definiert wird.
2. Implantat nach Anspruch 1,
dadurch gekennzeichnet, dass
diese beiden Elemente (10,10) kopfüber angeordnet sind.
3. Implantat nach einem der Ansprüche 1 und 2,
dadurch gekennzeichnet, dass
die beiden Elemente (10,10) identisch sind.
• •a
&igr; &Ogr;&Egr;/&Egr;&Rgr; O 9997'
sen
4. Implantat nach einem der Ansprüche 2 und 3,
dadurch gekennzeichnet, dass
jedes der Elemente einen ersten Endabschnitt (11) aufweist, welcher die Bohrung oder die Bohrungen (111) für die Befestigungsschraube (20) für Knochen, sowie einen zweiten Endabschnitt (14) aufweist, der eine Längsöffnung (141) enthält, deren große Achse die Richtung der Gleitbewegung definiert, wobei diese Öffnung von einem vorspringenden Element (30) durchquert wird, das mit einem Zwischenteil (12) des anderen Elementes fest verbunden ist.
5. Implantat nach Anspruch 4,
dadurch gekennzeichnet, dass
jedes der vorspringenden Elemente aus einer Schraube (30) besteht, welche eines der Mittel für die Blockierung bildet.
6. Implantat nach einem der Ansprüche 4 und 5, dadurch gekennzeichnet, dass
dieser Zwischenteil (12) der einzelnen Elemente in der Verlängerung und der Kontinuität des ersten Endabschnittes (11) liegt.
7. Implantat nach Anspruch 6,
dadurch gekennzeichnet, dass
der zweite Endabschnitt (14) der einzelnen Elemente höhenversetzt gegenüber dem ersten Endabschnitt (11) und dem Zwischenteil (12) so angeordnet ist, dass der Zwischenteil des anderen Elementes überdeckt wird.
8. Implantat nach einem der Ansprüche 5 bis 7,
3 DE/EP 0 999-786T1
dadurch gekennzeichnet, dass
jedes der Elemente ausserdem einen schmaleren Verbindungsteil (13) zwischen seinem Zwischenteil (12) und seinem zweiten Endabschnitt (14) aufweist.
9. Implantat nach Anspruch 8,
dadurch gekennzeichnet, dass
die Verbindungsteile (13,13) der beiden Elemente jeweils einen Teil für die Durchgangspassage (150) der Platte bilden.
10. Implantat nach Anspruch 9,
dadurch gekennzeichnet, dass
diese Durchgangspassage (150) eine längliche Form hat und an ihrer Basis eine umlaufende Schulter (1312) besitzt.
11. Implantat nach Anspruch 10,
dadurch gekennzeichnet, dass
diese Schulter (1312) abgeschrägt ist.
12. Implantat nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass
es ausserdem mindestens ein zusätzliches Verankerungsmittel (40) aufweist.
13. Implantat nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass
der Verbindungsteil (13) der einzelnen Elemente mindestens eine Schulter (1321,1311) bildet, die geeignet ist, mit dem zweiten Endabschnitt (14) oder
DE/EPO 999796J)
mit dem Zwischenteil (12) des anderen Elementes so zu kooperieren, dass ein Anschlag für die Gleitbewegung der beiden Elemente hergestellt wird.
14. Implantat nach einem der Ansprüche 1 bis 13,
dadurch gekennzeichnet, dass
die Befestigungsschraube für Knochen (20) ein Zwischengewinde (22) aufweist, welches mit einem entsprechenden Gewinde (1111) kooperieren kann, das in der Bohrung für die zugeordnete Schraube vorgesehen ist.
15. Implantat nach einem der Ansprüche 1 bis 13,
dadurch gekennzeichnet, dass
jede der Befestigungsschrauben für Knochen (20') einen Kopf (23') mit einem weitgehend stumpfkegeligen Profil aufweist und mit einer Vielzahl von Abzweigungen (26) ausgestattet ist, welche durch weitgehend axial verlaufende Zwischenräume (27) voneinander getrennt sind, wobei die Konizität des Kopfes geeignet ist, die Schraube gegen die Rotation durch die Reibung dieses Kopfes in der zugeordneten Bohrung (111) zu blockieren.
16. Implantat nach Anspruch 15,
dadurch gekennzeichnet, dass
der Kopf (23') mit einer Nut (261) ausgestattet ist, welche geeignet ist, mit einem inneren Vorsprung (1112) in der zugeordneten Bohrung (111) zusammenzuwirken, um dadurch eine axiale Blockierung herzustellen.
17. Implantat nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass
OE/EP 0 999-796 Tl
mindestens einige der Bohrungen (111) für die Befestigungsschraube für Knochen eine Achse besitzen, die nicht rechtwinklig zu der allgemeinen Ebene der Platte verläuft.
18. Ein Satz von Implantaten,
dadurch gekennzeichnet, dass
er eine Vielzahl von Implantaten nach einem der Ansprüche 1 bis 17 und Plattenelemente enthält, die eine unterschiedliche Anzahl von Bohrungen für Befestigungsschrauben für Knochen und verschiedene Ausrichtungen der Bohrungen für die Schrauben, sowie eine Vielzahl von Schrauben für die Befestigung von Knochen aufweist, und dadurch gekennzeichnet ist, dass die verschiedenen Elemente der Platte visuell unterschiedlich gestaltet sind.
19. Verfahren für die Behandlung von zwei benachbarten Wirbelknochen mit Hilfe eines Implantats, das eine Platte (10,10) enthält, welche an den beiden Wirbelknochen mit Hilfe einer Befestigungsschraube für Knochen (20) befestigt sind, wobei diese Platte aus zwei Elementen besteht, die jeweils mindestens eine Bohrung (111) für eine Schraube (20) für die Befestigung von Knochen aufweist, wobei jedes dieser Elemente gegenüber dem anderen Element in einer Richtung gleitend bewegt werden kann, welche einer Annäherung oder einer Abspreizung der Wirbelknochen untereinander entspricht, wobei diese Elemente mit Mitteln (141, 30) ausgestattet sind, um diese Elemente in einer gegenseitigen Position in einer Vielzahl von Stellungen zu blockieren, welche in einer bestimmten wechselseitigen Gleitbewegung zwischen diesen Elementen definiert werden, wobei dieses Verfahren folgende Schritte beinhaltet:
DE/EPO 999796 T1
Anordnung des Knochenimplantats zwischen den beiden zu behandelnden Wirbelknochen,
Befestigung des Implantats mit Hilfe der genannten Schrauben auf den beiden Wirbelknochen in einer Position, in welcher diese beiden Elemente eine erste wechselseitige Stellung einnehmen, die für die gewünschte Abspreizung zwischen den beiden Wirbelknochen geeignet ist,
Ausübung auf die beiden Wirbelknochen einer Bewegung der wechselseitigen Annäherung, um dadurch das Knochenimplantat zu komprimieren, wobei durch diese Bewegung die beiden Elemente aus ihrer anfänglichen wechselseitigen Position verschoben werden können,
sobald die gewünschte wechselseitige Annäherung der Wirbelknochen erreicht ist, welche einer zweiten wechselseitigen Position der Elemente entspricht, werden die beiden Elemente untereinander in der zweiten wechselseitigen Position blockiert.
DE0999796T 1997-07-28 1998-07-27 Implantat, insbesondere knochenplatte für die vordere seite der wirbelsäule Pending DE999796T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9709579A FR2766353B1 (fr) 1997-07-28 1997-07-28 Implant, notamment plaque anterieure cervicale
PCT/FR1998/001653 WO1999004718A1 (fr) 1997-07-28 1998-07-27 Implant, notamment plaque anterieure cervicale

Publications (1)

Publication Number Publication Date
DE999796T1 true DE999796T1 (de) 2000-11-09

Family

ID=9509712

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69813567T Expired - Lifetime DE69813567T2 (de) 1997-07-28 1998-07-27 Implantat, insbesondere knochenplatte für die vordere seite der wirbelsäule
DE0999796T Pending DE999796T1 (de) 1997-07-28 1998-07-27 Implantat, insbesondere knochenplatte für die vordere seite der wirbelsäule

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69813567T Expired - Lifetime DE69813567T2 (de) 1997-07-28 1998-07-27 Implantat, insbesondere knochenplatte für die vordere seite der wirbelsäule

Country Status (11)

Country Link
US (1) US6306136B1 (de)
EP (1) EP0999796B1 (de)
JP (1) JP2001510703A (de)
KR (1) KR100582135B1 (de)
AT (1) ATE237283T1 (de)
AU (1) AU741283B2 (de)
CA (1) CA2299166C (de)
DE (2) DE69813567T2 (de)
ES (1) ES2147171T3 (de)
FR (1) FR2766353B1 (de)
WO (1) WO1999004718A1 (de)

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AU741283B2 (en) 2001-11-29
EP0999796B1 (de) 2003-04-16
CA2299166A1 (fr) 1999-02-04
DE69813567D1 (de) 2003-05-22
WO1999004718A1 (fr) 1999-02-04
KR100582135B1 (ko) 2006-05-23
AU8868698A (en) 1999-02-16
KR20010022389A (ko) 2001-03-15
US6306136B1 (en) 2001-10-23
FR2766353A1 (fr) 1999-01-29
JP2001510703A (ja) 2001-08-07
ES2147171T3 (es) 2003-10-01
FR2766353B1 (fr) 1999-11-26
ATE237283T1 (de) 2003-05-15
ES2147171T1 (es) 2000-09-01
EP0999796A1 (de) 2000-05-17
DE69813567T2 (de) 2004-02-12
CA2299166C (fr) 2007-12-04

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