DE19519101A1 - Höhenverstellbarer Wirbelkörperersatz - Google Patents
Höhenverstellbarer WirbelkörperersatzInfo
- Publication number
- DE19519101A1 DE19519101A1 DE19519101A DE19519101A DE19519101A1 DE 19519101 A1 DE19519101 A1 DE 19519101A1 DE 19519101 A DE19519101 A DE 19519101A DE 19519101 A DE19519101 A DE 19519101A DE 19519101 A1 DE19519101 A1 DE 19519101A1
- Authority
- DE
- Germany
- Prior art keywords
- height
- vertebral body
- thread
- body replacement
- parts
- 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
-
- 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
-
- 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
- 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
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30148—Convex polygonal shapes lozenge- or diamond-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
- A61F2002/30235—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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- 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
- A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
-
- 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
- A61F2002/30411—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves having two threaded end parts connected by a threaded central part with opposite threads at its opposite ends, i.e. for adjusting the distance between both end parts by rotating the central part
-
- 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
- A61F2002/30329—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
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
-
- 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
- A61F2002/30329—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
- A61F2002/30517—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking plate
-
- 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
- A61F2002/3055—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
-
- 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
- A61F2002/30601—Special structural features of bone or joint prostheses not otherwise provided for telescopic
-
- 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
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
- A61F2002/30787—Plurality of holes inclined obliquely with respect to each other
-
- 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
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S606/00—Surgery
- Y10S606/907—Composed of particular material or coated
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Neurology (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
- Sheet Holders (AREA)
- Fertilizing (AREA)
- Pens And Brushes (AREA)
Description
Die Erfindung betrifft einen höhenverstellbaren Wirbelkörper
ersatz.
Aus der DE-GM 91 07 494.0 ist ein höhenverstellbarer Wirbel
körperersatz mit einem Gewindestab, der in seiner Mitte einen
Abschnitt zum Ineingriffbringen mit einem Schraubenschlüssel
zum Verdrehen des Gewindestabes, an dem daran anschließenden
einen Abschnitt ein Linksgewinde und an dem davon gegenüber
liegenden zweiten Abschnitt ein Rechtsgewinde aufweist. Mit
jedem Gewindeabschnitt ist jeweils ein ein entsprechendes Ge
winde aufweisendes Stützelement verbunden. Das Stützelement
weist auf der freien Stirnfläche in achsenparalleler Richtung
hervorstehende Dornen auf. Andere höhenverstellbare Wirbelkör
perimplantate sind in der AT-B 395 524, der US-A 4,657,550 und
der DE-C 30 23 942 beschrieben.
Aufgabe der Erfindung ist es, einen höhenverstellbaren Wirbel
körperersatz zu schaffen, der mechanisch einfach ausgebildet
und einfach bedienbar ist und der ein gutes Verwachsen ermög
licht.
Diese Aufgabe wird durch den in Anspruch 1 beschriebenen
höhenverstellbaren Wirbelkörperersatz gelöst. Weiterbildungen
der Erfindung sind in den Unteransprüchen gekennzeichnet.
Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben
sich aus der Beschreibung von Ausführungsbeispielen anhand der
Figuren.
Von den Figuren zeigen:
Fig. 1 eine Seitenansicht in Explosionsdarstellung einer
ersten Ausführungsform;
Fig. 2 ein bearbeitetes Detail aus Fig. 1;
Fig. 3 eine teilweise geschnitten dargestellte abgewandelte
Ausführungsform; und
Fig. 4 eine Seitenansicht einer Ausführungsform in zwei
verschiedenen Einstellungen.
Der höhenverstellbare Wirbelkörperersatz weist ein zylindrisch
ausgebildetes Mittelteil 1 auf. Dieses weist in axialer Rich
tung gesehen in der Mitte einen erhabenen Ring 2 und an seinen
daran angrenzenden Abschnitten auf beiden Seiten Gewindeab
schnitte 3 und 4 auf. Dabei ist der eine Abschnitt 3 als
Linksgewinde und der andere Abschnitt 4 als Rechtsgewinde aus
gebildet. Der Ring 2 weist in Umfangsrichtung gegeneinander
versetzt angeordnete Bohrungen 5 auf, und die Gewindeab
schnitte 3 und 4 weisen koaxial ausgerichtete rautenförmige
Öffnungen 6 auf.
Ferner ist ein zylindrisch ausgebildetes erstes Teil 7 vorge
sehen. Dieses weist auf seiner Innenseite eine mit dem Gewinde
des Gewindeabschnittes 4 zusammenwirkendes Gewinde auf und ist
im Betrieb auf dem Gewindeabschnitt 4 aufgeschraubt. Die Wan
dung ist aus einem in Umfangsrichtung und in Axialrichtung ge
geneinander versetzt angeordneten Rauten 6 aufweisendem Mate
rial gebildet. An seinem dem Ring 2 abgewandten freien Ende
weist das erste Teil eine Mehrzahl von in Umfangsrichtung von
einander einen Abstand aufweisende Zacken auf. Die Zacken
sind, wie am besten aus Fig. 1 ersichtlich ist, dadurch ge
bildet, daß der Rand in Umfangsrichtung entlang der Mittel
linie einer Schicht der Rauten 6 gelegt ist.
Das zweite Teil 9 unterscheidet sich gegenüber dem ersten Teil
nur dadurch, daß sein Innengewinde so ausgebildet ist, daß es
mit dem Gewinde des Gewindeabschnittes 3 zusammenwirkt. Das
zweite Teil ist im Betrieb auf den Gewindeabschnitt 3 aufge
schraubt.
Die rautenförmigen Öffnungen 6 in den beiden Gewindeabschnit
ten 3 und 4 haben vorzugsweise die gleichen Größenverhältnisse
und Anordnungsverhältnisse wie die Rautenanordnungen des er
sten und des zweiten Teiles. Der Außendurchmesser des Ringes 2
ist im wesentlichen gleich dem Außendurchmesser des ersten
bzw. zweiten Teiles 7, 9 gewählt.
Als Material für den Platzhalter wird vorzugsweise Titanblech
bzw. Titanrohr gewählt, auf jeden Fall aber ein biokompatibles
Material.
Im Betrieb wird der so beschriebene Wirbelkörperersatz in dem
zusammengeschraubten Zustand einfach zwischen die abzustützen
den Teile eingesetzt und durch Drehen an dem Ring 2 auf die
richtige Höhe eingestellt. In Fig. 4a ist der Wirbelkörperer
satz nahezu vollständig in die Ausgangsstellung auf die ge
ringste Höhe zusammengeschraubt, während die Höhe in der in
Fig. 4b gezeigten Stellung durch Auseinanderschrauben vergrö
ßert ist. Durch die Zacken 8 erfolgt ein drehstabiler Eingriff
mit den benachbarten Teilen.
Durch die Ausnehmungen 5 und 6 erfolgt ein gutes Durchwachsen
mit im Inneren des hohlen Wirbelkörperersatz es anzubringender
Knochensubstanz.
In Fig. 3 ist eine Ausführungsform einer Gewindetorsionssiche
rung für den oben beschriebenen Wirbelkörperersatz gezeigt. An
dem Ring 2 zugewandten Ende 10 des ersten Teiles 7 ist eine
Kopf- oder Madenschraube 11 in radialer Richtung so angeord
net, daß diese in der in Fig. 3 gezeigten Weise zur Arretie
rung mit dem Gewinde des zugehörigen Gewindeabschnittes des
Mittelteiles in Eingriff gelangt und eine Fixierung bewirkt.
Die Madenschraube ist, wie aus Fig. 3 ersichtlich ist, in
einem in dem Mantel des ersten Teiles vorgesehenen Gewinde ge
führt.
Wie am besten aus Fig. 2 ersichtlich ist, ermöglicht die Aus
bildung des jeweiligen Mantels der Teile 7, 7′, 9 es, eine
einfache Anpassung der Neigung der mit den benachbarten Wir
belkörpern in Eingriff zu bringenden Endflächen 12, indem mit
einer geeigneten Blechschere entsprechend der gewünschten Nei
gung ein Teil 13 abgetrennt und somit eine geneigte Kontakt
fläche 12′ geschaffen wird. Durch die Auswahl des Materials
weist auch die neue Kontaktfläche 12′ entsprechende Zacken 8′
auf.
Im Betrieb erfolgt nach der Höheneinstellung mittels Verdre
hens des Mittelteiles 1 über den Ring 2 ein Arretieren der
Schrauben 11, so daß eine stabile und sich nicht selbst lösen
de Fixierung erreicht ist.
Claims (6)
1. Höhenverstellbarer Wirbelkörperersatz mit einem hülsenar
tigen Mittelteil (1), welches angrenzend an seinen ersten Rand
ein Linksgewinde und angrenzend an seinen zweiten Rand ein
Rechtsgewinde aufweist,
mit einem zylindrischen ersten Teil (7) mit einer mit einer
Wandung mit einer Mehrzahl von Ausnehmungen (5, 6) und einem
zylindrischen zweiten Teil (9) mit einer Wandung mit einer
Mehrzahl von Ausnehmungen (5, 6), wobei das erste Teil (7) ein
mit dem Linksgewinde zusammenwirkendes Gewinde und das zweite
Teil (9) ein mit dem Rechtsgewinde zusammenwirkendes Gewinde
und
beide Teile an ihrem freien Ende ersten Rand jeweils eine
Mehrzahl von Zacken (8) aufweisen.
2. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 1,
dadurch gekennzeichnet, daß das Gewinde jedes der Teile (7, 9)
an dem dem ersten Rand gegenüberliegenden zweiten Rand vorge
sehen ist.
3. Höhenverstellbarer Wirbelkörperersatz nach Anspruch 1
oder 2, dadurch gekennzeichnet, daß die Gewinde des Mittel
teiles (1) als Außengewinde und die der Teile als Innengewinde
ausgebildet sind.
4. Höhenverstellbarer Wirbelkörperersatz nach einem der
Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Mittelteil
(1) zwischen den Gewindeabschnitten (3, 4) einen Abschnitt (5)
zum Drehen des Mittelteiles (1) relativ zu den beiden Teilen
(7, 9) aufweist.
5. Höhenverstellbarer Wirbelkörperersatz nach einem der
Ansprüche 1 bis 4, dadurch gekennzeichnet, daß eine Einrich
tung (11, 12) zum Arretieren des Mittelteiles (1) gegen Rela
tivdrehung zu wenigstens einem Teil (7, 8) vorgesehen ist.
6. Höhenverstellbarer Wirbelkörperersatz nach einem der
Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Ausnehmun
gen (5, 6) in der Wandung der Teile (7, 9) bzw. des Mittelteiles
als sich im wesentlichen in Axialrichtung der Hohlkörper
erstreckende Vierecke bzw. Rauten (8) ausgebildet sind.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19519101A DE19519101B4 (de) | 1995-05-24 | 1995-05-24 | Höhenverstellbarer Wirbelkörperersatz |
TW085203723U TW297273U (en) | 1995-05-24 | 1996-03-12 | Height-adjustable artificial vertebral body |
US08/952,908 US5989290A (en) | 1995-05-24 | 1996-05-15 | Height-adjustable artificial vertebral body |
CN96194105A CN1122504C (zh) | 1995-05-24 | 1996-05-15 | 高度可调整的椎骨体代用品 |
PCT/EP1996/002092 WO1996037170A1 (de) | 1995-05-24 | 1996-05-15 | Höhenverstellbarer wirbelkörperersatz |
AT96916090T ATE209883T1 (de) | 1995-05-24 | 1996-05-15 | Höhenverstellbarer wirbelkörperersatz |
EP96916090A EP0828463B1 (de) | 1995-05-24 | 1996-05-15 | Höhenverstellbarer wirbelkörperersatz |
HU9801916A HU219723B (hu) | 1995-05-24 | 1996-05-15 | Állítható magasságú csigolyatestpótlás |
DE59608379T DE59608379D1 (de) | 1995-05-24 | 1996-05-15 | Höhenverstellbarer wirbelkörperersatz |
KR1019970708222A KR19990014877A (ko) | 1995-05-24 | 1996-05-15 | 높이 조절이 가능한 척추 대용품 |
JP53534396A JP3827326B2 (ja) | 1995-05-24 | 1996-05-15 | 調節可能な高さを有する代替椎骨 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19549862 | 1995-05-24 | ||
DE19519101A DE19519101B4 (de) | 1995-05-24 | 1995-05-24 | Höhenverstellbarer Wirbelkörperersatz |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19519101A1 true DE19519101A1 (de) | 1996-11-28 |
DE19519101B4 DE19519101B4 (de) | 2009-04-23 |
Family
ID=7762786
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19519101A Expired - Lifetime DE19519101B4 (de) | 1995-05-24 | 1995-05-24 | Höhenverstellbarer Wirbelkörperersatz |
DE59608379T Expired - Lifetime DE59608379D1 (de) | 1995-05-24 | 1996-05-15 | Höhenverstellbarer wirbelkörperersatz |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE59608379T Expired - Lifetime DE59608379D1 (de) | 1995-05-24 | 1996-05-15 | Höhenverstellbarer wirbelkörperersatz |
Country Status (10)
Country | Link |
---|---|
US (1) | US5989290A (de) |
EP (1) | EP0828463B1 (de) |
JP (1) | JP3827326B2 (de) |
KR (1) | KR19990014877A (de) |
CN (1) | CN1122504C (de) |
AT (1) | ATE209883T1 (de) |
DE (2) | DE19519101B4 (de) |
HU (1) | HU219723B (de) |
TW (1) | TW297273U (de) |
WO (1) | WO1996037170A1 (de) |
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US10201432B2 (en) | 2007-10-30 | 2019-02-12 | Aesculap Implant Systems, Llc | Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine |
US9034046B2 (en) | 2007-10-30 | 2015-05-19 | Aesculap Implant Systems, Llc | Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine |
US10806595B2 (en) | 2007-10-30 | 2020-10-20 | Aesculap Implant Systems, Llc | Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine |
US8702719B2 (en) | 2008-10-16 | 2014-04-22 | Aesculap Implant Systems, Llc | Surgical instrument and method of use for inserting an implant between two bones |
US10485672B2 (en) | 2011-03-20 | 2019-11-26 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
US11389301B2 (en) | 2011-03-20 | 2022-07-19 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
EP2606859A1 (de) * | 2011-12-23 | 2013-06-26 | Asociación Centro de Investigación en Tecnologias de Union Lortek | Osseointegrierbares Implantat für cervicale Korpektomie |
Also Published As
Publication number | Publication date |
---|---|
KR19990014877A (ko) | 1999-02-25 |
CN1185099A (zh) | 1998-06-17 |
DE19519101B4 (de) | 2009-04-23 |
HU219723B (hu) | 2001-07-30 |
TW297273U (en) | 1997-02-01 |
EP0828463A1 (de) | 1998-03-18 |
HUP9801916A3 (en) | 1999-04-28 |
DE59608379D1 (de) | 2002-01-17 |
CN1122504C (zh) | 2003-10-01 |
HUP9801916A2 (hu) | 1998-12-28 |
US5989290A (en) | 1999-11-23 |
WO1996037170A1 (de) | 1996-11-28 |
ATE209883T1 (de) | 2001-12-15 |
EP0828463B1 (de) | 2001-12-05 |
JP3827326B2 (ja) | 2006-09-27 |
JPH11505736A (ja) | 1999-05-25 |
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