DE102008045174A1 - Device for implanting intervertebral implant, has opening dimensioned so that support element is rearwardly gripped in insertion position after inserting into inner space and rotation of support element around longitudinal axis of shaft - Google Patents
Device for implanting intervertebral implant, has opening dimensioned so that support element is rearwardly gripped in insertion position after inserting into inner space and rotation of support element around longitudinal axis of shaft Download PDFInfo
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- DE102008045174A1 DE102008045174A1 DE102008045174A DE102008045174A DE102008045174A1 DE 102008045174 A1 DE102008045174 A1 DE 102008045174A1 DE 102008045174 A DE102008045174 A DE 102008045174A DE 102008045174 A DE102008045174 A DE 102008045174A DE 102008045174 A1 DE102008045174 A1 DE 102008045174A1
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- intervertebral implant
- shaft
- bearing element
- interior
- insertion opening
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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
- 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
- A61F2/30—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
-
- A—HUMAN NECESSITIES
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- 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
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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
- 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
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
- A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
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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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3082—Grooves
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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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30968—Sintering
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/3097—Designing or manufacturing processes using laser
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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
- A61F2/46—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
- A61F2002/4625—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 with relative movement between parts of the instrument during use
- A61F2002/4627—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 with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
-
- 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
- A61F2/46—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
- A61F2002/4625—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 with relative movement between parts of the instrument during use
- A61F2002/4628—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 with relative movement between parts of the instrument during use with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
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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
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/0006—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting angular orientation
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- A—HUMAN NECESSITIES
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum Implantieren eines Zwischenwirbelimplantates mit einem Zwischenwirbelimplantat und einem lösbar mit diesem verbindbaren Handhabungsinstrument, welches einen länglichen Schaft umfasst, an dessen distalem Ende ein mit dem Implantat lösbar verbindbares Verbindungsglied angeordnet ist.The The invention relates to a device for implanting an intervertebral implant with an intervertebral implant and a detachable with this connectable handling instrument, which is an elongated Shank includes, at the distal end of a detachable with the implant connectable connecting member is arranged.
Beim Einsetzen eines Zwischenwirbelimplantates in den Zwischenwirbelraum ist es in vielen Fällen notwendig, dieses seitlich in den Zwischenwirbelraum einzuschieben und die Lage des Zwischenwirbelimplantates im Zwischenwirbelraum gegebenenfalls mehrfach zu korrigieren. Dies kann mit Hilfe von Stößeln erfolgen, es ist dann aber schwierig, das Zwischenwirbelimplantat zurückzuziehen oder zu drehen.At the Insertion of an intervertebral implant in the intervertebral space It is necessary in many cases, this laterally in the Insert the intervertebral space and the position of the intervertebral implant if necessary, correct several times in the intervertebral space. This can be done with the help of pestles, it is then but difficult to retract the intervertebral implant or to turn.
Es gibt Instrumente, die lösbar mit dem Zwischenwirbelimplantat verbunden werden können, so dass das Einsetzen erleichtert wird.It There are instruments that are detachable with the intervertebral implant can be connected so that the insertion facilitates becomes.
So
ist es beispielsweise bekannt, das Zwischenwirbelimplantat mittels
eines zangenförmigen Werkzeuges zu ergreifen, welches an
einem Handhabungsinstrument gelagert ist und welches auch in seiner
Position verdreht werden kann (
Eine ähnliche
Festlegung des Handhabungsinstrumentes am Implantat ergibt sich
bei einer anderen bekannten Konstruktion (
Aus
der
Es ist Aufgabe der Erfindung, eine gattungsgemäße Einrichtung so auszubilden, dass mit einem baulich sehr einfachen Handhabungsinstrument in einfacher Weise eine lösbare Verbindung mit dem Zwischenwirbelimplantat hergestellt werden kann, die eine optimale Handhabung des Zwischenwirbelimplantates beim Einführen in den Zwischenwirbelraum ermöglicht.It is the object of the invention, a generic Facility to train so that with a structurally very simple Handling instrument in a simple manner a detachable connection can be made with the intervertebral implant, the one optimal handling of the intervertebral implant during insertion in the intervertebral space allows.
Diese Aufgabe wird bei einer Einrichtung der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, dass das Verbindungsglied ein quer zur Längsrichtung des Schaftes von diesem abstehendes Lagerelement ist und dass das Zwischenwirbelimplantat eine Einführöffnung zum Einführen des Lagerelementes in einen Innenraum des Zwischenwirbelimplantates aufweist, die so dimensioniert ist, dass das Lagerelement nach dem Einführen in den Innenraum in einer Einführposition und einer Verdrehung des Lagerelementes um die Längsachse des Schaftes in eine Lagerposition den Rand der Einführöffnung hintergreift und sich beim Herausziehen des Schaftes aus dem Innenraum an die Innenseite des Innenraumes anlegt. Es wird also eine bajonettartige Verriegelung zwischen dem distalen Ende des Schaftes und der Wand des Zwischenwirbelimplantates vorgesehen. Das Lagerelement wird in der Einführposition durch die Einführöffnung in den Innenraum des Implantates eingeführt, anschließend wird der Schaft mit dem Lagerelement verdreht, und dann kann das Lagerelement beim Herausziehen des Schaftes aus dem Innenraum nicht mehr durch die Einführöffnung hindurch treten, sondern legt sich an die Innenwand des Innenraumes an, so dass dadurch eine Verbindung zwischen dem Handhabungsinstrument und dem Zwischenwirbelimplantat erreicht wird.These Task is in a device of the type described above solved according to the invention that the connecting member transversely to the longitudinal direction of the shaft from this projecting bearing element and that the intervertebral implant an insertion opening for insertion of the bearing element in an interior of the intervertebral implant, the like dimensioned is that the bearing element after insertion into the interior in an insertion position and a twist of the bearing element about the longitudinal axis of the shaft in a Storage position engages behind the edge of the insertion opening and when pulling the shaft from the interior of the Interior of the interior creates. So it's a bayonet-like lock provided between the distal end of the shaft and the wall of the intervertebral implant. The bearing element is in the insertion position by the Insertion opening in the interior of the implant introduced, then the shaft with the Bearing element twisted, and then the bearing element when pulling out the shaft from the interior no longer through the insertion pass through, but lies against the inner wall of the interior so that thereby a connection between the handling instrument and the intervertebral implant is achieved.
Günstig ist es, wenn der Schaft auf einander gegenüberliegenden Seiten je ein Lagerelement trägt, wenn also der Schaft an seinem distalen Ende im Wesentlichen T-förmig ausgebildet ist.Cheap it is when the shaft is facing each other Each page carries a bearing element, so if the shaft formed at its distal end is substantially T-shaped is.
Insbesondere kann vorgesehen sein, dass das Lagerelement eine gebogene Lagerfläche aufweist, die in der Lagerposition des Lagerelementes an der Innenwand des Innenraums anliegt und ein Verschwenken des Zwischenwirbelimplantates relativ zum Schaft um eine quer zur Schaftlängsachse verlaufende Drehachse ermöglicht. Insbesondere kann die Lagerfläche eine Kreiszylinderflache sein.Especially it can be provided that the bearing element has a curved bearing surface having, in the storage position of the bearing element on the inner wall the interior rests and pivoting of the intervertebral implant relative to the shaft about a transverse to the shaft longitudinal axis Rotary axis allows. In particular, the storage area be a circular cylinder surface.
Es ist vorteilhaft, wenn die Innenwand des Innenraums eine das Lagerelement aufnehmende Lagervertiefung aufweist. Dadurch ergibt sich eine definierte Drehachse zwischen Zwischenwirbelimplantat und Handhabungsinstrument.It is advantageous if the inner wall of the interior of the bearing element having receiving bearing recess. This results in a defined Rotary axis between the intervertebral implant and handling instrument.
Es ist dabei vorteilhaft, wenn die Außenfläche des Zwischenwirbelimplantats im Bereich der Einführöffnung eine kreisbogenförmige Kontur aufweist, die konzentrisch zur Drehachse des Lagerelementes angeordnet ist.It is advantageous if the outer surface of the intervertebral implant in the region of the insertion opening on a circular arc-shaped contour has, which is arranged concentrically to the axis of rotation of the bearing element.
Bei einer bevorzugten Ausführungsform ist eine Spanneinrichtung vorgesehen, die den Schaft derart von dem Zwischenwirbelimplantat weg zieht, dass das Lagerelement gegen die Innenwand des Innenraumes gedrückt wird. Diese Spanneinrichtung führt zu einer Verklemmung zwischen Zwischenwirbelimplantat und Handhabungsinstrument, so dass eine bestimmte Winkelstellung zwischen den beiden eingehalten werden kann.at A preferred embodiment is a tensioning device provided, which the shaft of the intervertebral implant Pulls away that the bearing element against the inner wall of the interior is pressed. This clamping device leads to jamming between the intervertebral implant and the handling instrument, so that a certain angular position is maintained between the two can be.
Insbesondere kann die Spanneinrichtung eine auf dem Schaft längsverschieblich gelagerte und diesen umgebende Spannhülse sein, die sich mit ihrem distalen Ende gegen die Außenseite des Zwischenwirbelimplantates anlegt.Especially the tensioning device can be moved longitudinally on the shaft be stored and surrounding this clamping sleeve, which itself with its distal end against the outside of the intervertebral implant invests.
Es ist dabei vorteilhaft, wenn die Kontur der Spannhülse an ihrem distalen Ende der Kontur des Zwischenwirbelimplantates in dem Bereich entspricht, in dem sich die Spannhülse an das Zwischenwirbelimplantat anlegt.It is advantageous if the contour of the clamping sleeve its distal end of the contour of the intervertebral implant in corresponds to the area in which the clamping sleeve to the Intervertebral implant.
Die Außenfläche des Zwischenwirbelimplantats im Bereich der Einführöffnung und/oder das distale Ende der Spannhülse können strukturiert sein, so dass die Spannhülse beim Andrücken an die Außenfläche des Zwischenwirbel implantates gegen eine Verdrehung gesichert ist. Diese Strukturierung kann beispielsweise eine Riffelung sein.The Outer surface of the intervertebral implant in the area the insertion opening and / or the distal end of the Clamping sleeve can be structured so that the Clamping sleeve when pressed against the outer surface of the intervertebral implant is secured against rotation. This structuring can be, for example, a corrugation.
Auf den Schaft kann an dessen proximalem Ende eine Spannmutter aufgeschraubt sein, die sich am distalen Ende der Spannhülse abstützt. Durch Aufschrauben der Spannmutter wird die Spannhülse gegen das Zwischenwirbelimplantat gedrückt und führt zu einer Klemmverbindung.On the shaft can be screwed on the proximal end of a clamping nut be, which is supported at the distal end of the clamping sleeve. By unscrewing the clamping nut, the clamping sleeve against pushes and guides the intervertebral implant to a clamp connection.
Insbesondere kann die Einführöffnung schlitzförmig ausgebildet sein.Especially the insertion opening can be slit-shaped be educated.
Bei einer bevorzugten Ausführungsform ist das Zwischenwirbelimplantat plattenförmig ausgebildet mit einer im Wesentlichen ebenen Oberseite und einer im Wesentlichen ebenen und im Wesentlichen parallel dazu verlaufenden Unterseite, wobei die Einführöffnung in einer Seitenwand des Zwischenwirbelimplantates angeordnet ist.at A preferred embodiment is the intervertebral implant plate-shaped with a substantially flat Top and one substantially planar and substantially parallel extending bottom, the insertion opening is arranged in a side wall of the intervertebral implant.
Es ist dabei günstig, wenn das Lagerelement in der Einführposition im Wesentlichen parallel zu der Oberseite und der Unterseite des Zwischenwirbelimplantats verläuft, in der Lagerposition dagegen quer dazu.It is advantageous if the bearing element in the insertion position essentially parallel to the top and bottom of the Intervertebral implant runs, in the storage position in contrast to this.
Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:The following description of preferred embodiments The invention is in connection with the drawing of the closer Explanation. Show it:
In
der Zeichnung ist ein Zwischenwirbelimplantat
Im
Bereich einer Stirnseite befindet sich im Inneren des Zwischenwirbelimplantates
Das Zwischenwirbelimplantat kann kompakt ausgebildet sein, es ist aber auch möglich, das es eine Gitterstruktur aufweist.The Intervertebral implant may be compact, but it is also possible that it has a grid structure.
Zur
Handhabung des Zwischenwirbelimplantates
Die
Breite des Lagervorsprunges
Die
schmalen Endkanten der schlitzförmigen Einführöffnung
Auf
dem Schaft
Auf
die Spannhülse
Auf
der Lagerhülse
Um
die Verbindung zwischen dem Handhabungsinstrument
Eine Änderung
dieser Winkelstellung lässt sich leicht dadurch erreichen,
dass die Spannmutter
In
den
Die
Verbindung zwischen Handhabungsinstrument
Es
ist auch einfach, eine Verbindung zwischen einem Zwischenwirbelimplantat
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - WO 2006/113562 A1 [0004] WO 2006/113562 A1 [0004]
- - US 2007/0093850 A1 [0005] US 2007/0093850 A1 [0005]
- - US 2007/0142843 A1 [0005] US 2007/0142843 A1 [0005]
- - WO 2006/079356 A1 [0006] WO 2006/079356 A1 [0006]
Claims (14)
Priority Applications (1)
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DE102008045174.6A DE102008045174B4 (en) | 2008-08-30 | 2008-08-30 | Device for implanting an intervertebral implant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102008045174.6A DE102008045174B4 (en) | 2008-08-30 | 2008-08-30 | Device for implanting an intervertebral implant |
Publications (2)
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DE102008045174A1 true DE102008045174A1 (en) | 2010-03-04 |
DE102008045174B4 DE102008045174B4 (en) | 2018-12-20 |
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DE102008045174.6A Active DE102008045174B4 (en) | 2008-08-30 | 2008-08-30 | Device for implanting an intervertebral implant |
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DE (1) | DE102008045174B4 (en) |
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US20140324106A1 (en) * | 2011-02-14 | 2014-10-30 | Wiltrom Co., Ltd. | Implanting apparatus and operating method thereof |
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