DE29810798U1 - osteosynthesis - Google Patents

osteosynthesis

Info

Publication number
DE29810798U1
DE29810798U1 DE29810798U DE29810798U DE29810798U1 DE 29810798 U1 DE29810798 U1 DE 29810798U1 DE 29810798 U DE29810798 U DE 29810798U DE 29810798 U DE29810798 U DE 29810798U DE 29810798 U1 DE29810798 U1 DE 29810798U1
Authority
DE
Germany
Prior art keywords
characterized
osteosynthesis device
preceding
osteosynthesis
support rod
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
Application number
DE29810798U
Other languages
German (de)
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.)
DePuy Spine SARL
Original Assignee
Schaefer Micomed GmbH
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 Schaefer Micomed GmbH filed Critical Schaefer Micomed GmbH
Priority to DE29810798U priority Critical patent/DE29810798U1/en
Publication of DE29810798U1 publication Critical patent/DE29810798U1/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032Screws or hooks with U-shaped head or back through which longitudinal rods pass

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text has not been detected electronically

Claims (15)

1. Osteosynthesevorrichtung mit einer Knochenschraube ( 1 ) mit einem eine Nut ( 6 ) aufweisenden Gabelkopf ( 4 ) und einem in die Nut ( 6 ) des Gabelkopfes ( 4 ) einzulegenden Stützstab ( 2 ), der ein Oberflächenprofil aufweist, der Gabelkopf ( 4 ) im Nutgrund ( 7 ) eine Oberflächenprofilierung ( 8 ) aufweist und der Gabelkopf ( 4 ) mit einer den Stützstab ( 2 ) fixierenden Madenschraube ( 3 ) versehen ist, wobei die Oberflächenprofilierung ( 8 ) des Nutgrundes ( 7 ) die Halterung des Stützstabes ( 2 ) in der Nut ( 6 ) ermöglichende Mittel aufweist und die Innenseiten der Schenkel ( 5 ) des Gabelkopfes ( 4 ) mit einem Abschnitt eines Innengewindes ( 9 ) versehen sind und das Innengewinde ( 9 ) nach Art eines Tannenbaumgewindes ausgebildet ist und eine dem Nutgrund ( 7 ) zugewandte Flanke ( 10 ) aufweist, die, ausgehend von der Achse ( 19 ) der Knochenschraube ( 1 ) in radialer Richtung gesehen, ansteigt. 1. An osteosynthesis device having a bone screw (1) having a groove (6) the fork head (4) and an in the groove (6) of the fork head (4) to be inserted supporting rod (2) having a surface profile of the fork head (4) in the groove base (7) and a surface contouring (8) of the fork head (4) having a said support rod (2) fixing the grub screw (3) is provided, wherein the surface profiling (8) of the groove bottom (7) the holder of the support rod (2) in the groove (6) comprises enabling means and the inner sides of the legs (5) of the fork head (4) are provided with a portion of an internal thread (9) and the internal thread (9) is designed in the manner of a fir tree thread and the groove bottom (7 has) facing edge (10), seen which, starting from the axis (19) of the bone screw (1) in the radial direction increases.
2. Osteosynthesevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Flanke ( 10 ) radialer Richtung linear ansteigt. 2. The osteosynthesis device according to claim 1, characterized in that the flank (10) of the radial direction increases linearly.
3. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Flanke ( 10 ) in radialer Richtung gebogen ist. 3. The osteosynthesis device of one of the preceding claims, characterized in that the flank (10) is bent in the radial direction.
4. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens in einem Abschnitt des Gewindes der Steigungswinkel (α) der einzelnen, zwischen dem Nutgrund ( 7 ) und den freien Enden der Schenkel ( 5 ) des Gabelkopfes ( 4 ) vorgesehenen Flanken ( 10 ) gleich ist, abnimmt oder zunimmt. 4. The osteosynthesis device of one of the preceding claims, characterized in that at least in a portion of the thread pitch angle (α) of the individual, between the groove base (7) and the free ends of the legs (5) of the fork head (4) provided flanks ( 10) is equal to, is increasing or decreasing.
5. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Madenschraube ( 3 ) mit einem Innensechskant ( 14 ) betätigbar ist. 5. The osteosynthesis device of one of the preceding claims, characterized in that the grub screw (3) can be actuated with a hexagon socket (14).
6. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Nutgrund ( 7 ) mit Längsrillen versehen ist. 6. The osteosynthesis device of one of the preceding claims, characterized in that the groove base (7) is provided with longitudinal grooves.
7. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stützstab ( 2 ) ein Gewindestab ist und die Oberflächenprofilierung ( 8 ) quer zur Längsachse des Stützstabes ( 2 ) verlaufende Querrillen aufweist. 7 comprises osteosynthesis device of one of the preceding claims, characterized in that the supporting rod (2) is a threaded rod and the surface profiling (8) transversely to the longitudinal axis of the support rod (2) extending transverse grooves.
8. Osteosynthesevorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Querrillen zum Gewinde des Stützstabes ( 2 ) korrespondieren. 8. The osteosynthesis device according to claim 7, characterized in that the transverse grooves correspond to the thread of the support rod (2).
9. Osteosynthesevorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Querrillen eine geringere Tiefe aufweisen als das Gewinde des Stützstabes ( 2 ). 9. osteosynthesis device according to claim 8, characterized in that the transverse grooves have a smaller depth than the thread of the support rod (2).
10. Osteosynthesevorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Querrillen eine dem Gewinde des Stützstabes ( 2 ) entsprechende Steigung aufweisen. 10. The osteosynthesis device according to claim 8 or 9, characterized in that the transverse grooves have the thread of the support rod (2) corresponding slope.
11. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenprofilierung ( 8 ) eine Riffelung ist. 11. The osteosynthesis device of one of the preceding claims, characterized in that the surface profiling (8) is a corrugation.
12. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stützstab ( 2 ) Umfangsnuten aufweist. 12. The osteosynthesis device of one of the preceding claims, characterized in that the support rod (2) has circumferential grooves.
13. Osteosynthesevorrichtung mit einer Knochenschraube ( 1 ) mit einem eine Nut ( 6 ) aufweisenden Gabelkopf ( 4 ) und einem in die Nut ( 6 ) des Gabelkopfes ( 4 ) einzulegenden Stützstab ( 2 ), der ein Oberflächenprofil aufweist, der Gabelkopf ( 4 ) im Nutgrund ( 7 ) eine Oberflächenprofilierung ( 8 ) aufweist und der Gabelkopf ( 4 ) mit einer den Stützstab ( 2 ) fixierenden Madenschraube ( 3 ) versehen ist, wobei die Oberflächenprofilierung ( 8 ) des Nutgrundes ( 7 ) die Halterung des Stützstabes ( 2 ) in der Nut ( 6 ) ermöglichende Mittel aufweist und die Innenseiten der Schenkel ( 5 ) des Gabelkopfes ( 4 ) mit einem Abschnitt eines Innengewindes ( 9 ) versehen sind und das Innengewinde ( 9 ) eine Flanke ( 10 ) aufweist, die, ausgehend von der Achse ( 19 ) der Knochenschraube ( 1 ) in radialer Richtung gesehen, mit einer Hinterschneidung ( 17 ) versehen ist. 13. Osteosynthesis device with a bone screw (1) having a groove (6) the fork head (4) and an in the groove (6) of the fork head (4) to be inserted supporting rod (2) having a surface profile of the fork head (4) in the groove base (7) and a surface contouring (8) of the fork head (4) having a said support rod (2) fixing the grub screw (3) is provided, wherein the surface profiling (8) of the groove bottom (7) the holder of the support rod (2) in the groove (6) comprises enabling means and the inner sides of the legs (5) of the fork head (4) provided with a portion of an internal thread (9) and the internal thread (9) has a flank (10) which, starting from the is provided seen axis (19) of the bone screw (1) in the radial direction, with an undercut (17).
14. Osteosynthesevorrichtung mit einer Knochenschraube ( 1 ) mit einem eine Nut ( 6 ) aufweisenden Gabelkopf ( 4 ) und einem in die Nut ( 6 ) des Gabelkopfes ( 4 ) einzulegenden Stützstab ( 2 ), der ein Oberflächenprofil aufweist, der Gabelkopf ( 4 ) im Nutgrund ( 7 ) eine Oberflächenprofilierung ( 8 ) aufweist und der Gabelkopf ( 4 ) mit einer den Stützstab ( 2 ) fixierenden Madenschraube ( 3 ) versehen ist, wobei die Oberflächenprofilierung ( 8 ) des Nutgrundes ( 7 ) die Halterung des Stützstabes ( 2 ) in der Nut ( 6 ) ermöglichende Mittel aufweist und die Innenseiten der Schenkel ( 5 ) des Gabelkopfes ( 4 ) mit einem Abschnitt eines Innengewindes ( 9 ) versehen sind und das Innengewinde ( 9 ) und die Madenschraube ( 3 ) ausgehend von der Achse ( 19 ) der Knochenschraube ( 1 ) in radialer Richtung gesehen, formschlüssig miteinander verbunden sind. 14. Osteosynthesis device with a bone screw (1) having a groove (6) the fork head (4) and an in the groove (6) of the fork head (4) to be inserted supporting rod (2) having a surface profile of the fork head (4) in the groove base (7) and a surface contouring (8) of the fork head (4) having a said support rod (2) fixing the grub screw (3) is provided, wherein the surface profiling (8) of the groove bottom (7) the holder of the support rod (2) in the groove (6) comprises enabling means and the inner sides of the legs (5) of the fork head (4) are provided with a portion of an internal thread (9) and the internal thread (9) and the grub screw (3) starting from the axis (19 ) of the bone screw (1) seen in radial direction, positively connected to one another.
15. Osteosynthesevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Madenschraube ( 3 ) ein dem Innengewinde ( 14 ) des Gabelkopfes ( 4 ) entsprechendes Aussengewinde ( 12 ) aufweist. 15. The osteosynthesis device of one of the preceding claims, characterized in that the grub screw (3) the internal thread (14) of the fork head (4) has corresponding external thread (12).
DE29810798U 1998-06-17 1998-06-17 osteosynthesis Expired - Lifetime DE29810798U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29810798U DE29810798U1 (en) 1998-06-17 1998-06-17 osteosynthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29810798U DE29810798U1 (en) 1998-06-17 1998-06-17 osteosynthesis

Publications (1)

Publication Number Publication Date
DE29810798U1 true DE29810798U1 (en) 1999-10-28

Family

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Family Applications (1)

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DE (1) DE29810798U1 (en)

Cited By (88)

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EP1219255A1 (en) * 2000-12-27 2002-07-03 BIEDERMANN MOTECH GmbH Screw for connection to a rod
EP1277444A2 (en) * 2001-07-20 2003-01-22 Werner Hermann Threaded bolt, threaded nut and threaded connection
EP1316295A2 (en) * 2001-11-27 2003-06-04 BIEDERMANN MOTECH GmbH Element with a shaft and a retaining element connected to the shaft for attaching a rod
EP1316294A2 (en) * 2001-11-27 2003-06-04 BIEDERMANN MOTECH GmbH Fastener assembly for securing a rod-shaped element in a retaining element connected to a shaft
US6726689B2 (en) 2002-09-06 2004-04-27 Roger P. Jackson Helical interlocking mating guide and advancement structure
WO2004041100A1 (en) * 2002-10-30 2004-05-21 Spinal Concepts, Inc. Spinal stabilization system insertion and methods
EP1449486A1 (en) 2003-02-19 2004-08-25 Spinal Innovations LLC Implant device including threaded locking profilesm
EP1457161A1 (en) * 2003-03-11 2004-09-15 BIEDERMANN MOTECH GmbH Fixation device for use in spinal or bone surgery and method of its manufacture
WO2005092223A2 (en) * 2004-03-22 2005-10-06 Innovative Spinal Technologies Closure member for a medical implant device
EP1715797A2 (en) * 2004-02-20 2006-11-02 Roger P. Jackson Anti-splay medical implant closure with multi-surface removal aperture
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EP1956989A2 (en) * 2005-11-22 2008-08-20 Roger P. Jackson Reverse angled threadform with anti-splay clearance
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US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
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