WO2003068086A1 - Vorrichtung zur verbindung eines längsträgers mit einem knochen - Google Patents
Vorrichtung zur verbindung eines längsträgers mit einem knochen Download PDFInfo
- Publication number
- WO2003068086A1 WO2003068086A1 PCT/CH2002/000080 CH0200080W WO03068086A1 WO 2003068086 A1 WO2003068086 A1 WO 2003068086A1 CH 0200080 W CH0200080 W CH 0200080W WO 03068086 A1 WO03068086 A1 WO 03068086A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- clamping ring
- groove
- diameter
- bone
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- 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 ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
Definitions
- the invention relates to a device for connecting a longitudinal member to a bone, according to the preamble of patent claim 1 and to an implant according to the preamble of patent claim 9.
- devices which comprise pedicle screws, at least one longitudinal carrier and connecting parts for fastening the pedicle screws to the longitudinal carrier.
- the pedicle screws are screwed into the pedicles of the individual vertebrae to be connected and fastened with the screw head in the connection part.
- the pedicle screws must, on the one hand, be firmly anchored in the pedicles and, on the other hand, be rigidly connectable to the longitudinal carrier.
- the connection between the screw head and the connecting part is usually via a clamping mechanism, which must be solvable, so that the entire implant without large tissue openings in the spine is removable again.
- a device for connecting a pedicle screw with a side member is known from US 5,728,098 SHERMAN.
- This known device comprises a pedicle screw with a spherical screw head and a connecting part with a cavity, which is likewise configured spherically against the lower, adjacent to the pedicle screw end and serves to receive the screw head of the pedicle screw.
- a transversely to the longitudinal axis of the connecting part applied channel for receiving a longitudinal member is arranged. Both the channel delimiting tongues and the lower segment with the spherical cavity are elastically deformable transversely to the longitudinal axis.
- the lower segment of the connecting part can be compressed transversely to the longitudinal axis and thereby the screw head can be fixed in the cavity, as well as on the other hand after inserting the longitudinal member in the channel, the upper segment of the connecting part can be compressed transversely to the longitudinal axis and thereby the longitudinal member in the channel between the tongues can be fixed.
- the upper and the lower segment of the connecting part are compressed by means of clamping rings, which can be latched for axial fixation in grooves on the connecting part.
- a disadvantage of this known device is that the clamping ring which serves to fix the longitudinal member in the upper segment of the connecting part, after insertion of the longitudinal member into the channel by the surgeon separately as an individual part must be brought through the soft tissue to the implant, so that a further step becomes necessary.
- the risk of losing the clamping ring in the soft tissues during implantation is increased.
- the invention aims to remedy this situation.
- the invention has for its object to provide a device whose clamping ring is connected to the device prior to implantation and after insertion of the longitudinal member, the blocking of the device can be achieved by simply moving the clamping ring.
- the invention solves the stated object with a device for connecting a longitudinal member with a bone or bone fragment, which has the features of claim 1, as well as with an implant, which has the features of claim 9.
- the device according to the invention essentially comprises a bone fixation means with an upper part for connection to a longitudinal carrier and a lower part for fixation with a bone, in particular a pedicle.
- the longitudinal member is inserted into a channel with transversely to the central axis of the bone fixation extending channel axis.
- a clamping ring which comprises a central bore coaxial with the central axis and can be brought to the upper part below the channel in a first axial position, in which a channel inserted in the longitudinal member relative to the bone fixation means is blocked.
- the upper part is designed to be elastically deformable transversely to the central axis by means of at least one slot arranged parallel to the central axis between its lower end and the channel. Through the channel and the slot, both of which penetrate the upper part transversely to the central axis, at least two tongues which are elastically deformable transversely to the channel axis are formed on the upper part.
- the upper part comprises a to the central axis concentric, circular groove having a core diameter which is smaller than the diameter of the central bore on the clamping ring, so that at a second axially coincident with the groove position of the clamping ring on the one hand, the two formed by the channel and the at least one slot, elastically transversely to the central axis deformable tongues on the upper part of the bone fixation means are transversely deformed transversely to the channel axis and insertion of the longitudinal member in the channel is made possible and on the other hand after the introduction of the longitudinal member in the channel repositioning maneuvers on the bone to be stabilized, for example, to be stabilized spinal column parts can be performed.
- the longitudinal beam is easily locked during the repositioning of the bone to be stabilized by the two elastically deformable tongues, so that displacements or rotational movements of the longitudinal member in the channel against resistance are possible.
- the pre-implant is implantable without risk of losing individual parts
- this comprises an upper part which has a diameter D between the groove and the lower end which is greater than or equal to the diameter d of the central bore in the clamping ring.
- the ratio between the diameter D and the diameter d is between 102% and 100%, preferably between 100.5% and 100%.
- this comprises between the channel and the groove concentric with the central axis, a circular shoulder.
- the ratio of the diameter of this paragraph to the diameter of the central bore in the clamping ring is between 101% and 110%, preferably between 101% and 105%.
- this comprises between the shoulder and the channel a second groove, wherein the clamping ring can be latched to block the inserted in the channel longitudinal member.
- the ratio of the core diameter D K 2 of this second groove to the diameter d of the central bore in the clamping ring is between 102%) and 100%, preferably between 100.5% and 100%.
- the lower part of the bone fixation means is equipped as a pedicle screw with an externally threaded screw shank.
- the lower segment of the bone fixation means is designed as a pedicle hook.
- the implant according to the invention comprises a rod-shaped longitudinal carrier with an outer diameter DL.
- the channel in this case has a light width Lw, which is the diameter D L in a ratio Lw / D between 90% and 105%, preferably between 98% and 102%.
- Figure 1 is a view of an embodiment of the inventive device with blocked side member.
- Figure 2 is a view of the embodiment of the device according to the invention shown in Figure 1, wherein the clamping ring is in the position provided for the reduction of bone parts.
- FIG. 3 shows a plan view of the embodiment of the device according to the invention with inserted side member illustrated in FIGS. 1 and 2;
- Fig. 5 is a view of an embodiment of the inventive implant, which is screwed to a spinal column part.
- Fig. 1, 2 and 3 show a bone fixation means 1 with an upper part 2 and a lower part 3, which are arranged coaxially to a central axis 5.
- the lower part 3 is designed as a threaded shaft 4 with an external thread 6 for screwing into a pedicle of a vertebral body 24 (FIG. 4).
- the upper part 2 is designed as a connecting part for connecting the bone fixation device 1 to a longitudinal member 11, the channel 12 serving to receive the longitudinal member 11 penetrating the upper part 2 transversely to the central axis 5 and open at the upper end 13 of the bone fixation means 1.
- a slot 18 is attached to the upper part 2, which penetrates the upper part 2 parallel to the channel axis 9 and is open against the channel 12.
- tongues 19 are formed on the upper part 2, which are transversely to the channel axis 9 elastically deformable.
- the channel 12 has a width Lw and is narrowed at the upper end 13 of the bone fixation means 1 by two cams 20 transversely to the central axis 5, so that a channel 12 inserted longitudinal member 11 through the cams 20 axially against the upper end 13 of the bone fixation 1 is locked.
- the longitudinal member 11 During the implantation of the longitudinal member 11, it is displaced parallel to the central axis 5 from the upper end 13 of the bone fixation device 1 between the cams 20 into the channel 12, wherein the two elastic tongues 19 are spread elastically across the central axis 5 when the longitudinal member 11 abuts the cam 20 is pushed past. As soon as the side rail 11 is pushed completely into the channel 12, the tongues 19 spring back into their undeformed position.
- the clamping ring 15 is pushed axially over the concentric to the central axis 5, circular groove 8 (Fig. 2), whose core diameter D ⁇ - ⁇ (Fig. 3) smaller than the diameter d (Fig.
- FIG. 4 shows the upper part 2 of an embodiment of the device according to the invention with a first groove 8 having a core diameter D ⁇ ⁇ d and a second groove 7 having a core diameter D ⁇ 2 ⁇ d for inserting the longitudinal beam 11 (FIG. 3) into the groove Channel 12 and during the repositioning of the bone to be stabilized, the clamping ring 15 is pushed into the first groove 8 in its second position. By axial displacement of the clamping ring 15 against the upper end 13 of the upper part 2 of the clamping ring 15 can be brought into the second groove 7. In this first position of the clamping ring 15, the longitudinal member 11 (FIG. 3) in the channel 15 is blocked.
- the core diameter D ⁇ 2 of the second groove 7 is smaller than the diameter of the upper part 2 between the second groove 7 and the channel 15.
- circular shoulder 10 is arranged with the diameter DA> d such that the clamping ring 15 is in its first position axially locked.
- the upper part 2 has a diameter D, which is dimensioned so that the clamping ring 15 can be brought into the groove 8 during the pre-assembly of the device from the lower part 3, but against unintentional displacement of the groove 8 against the Lower part 3 is secured.
- the transition between the groove 8 and the lower end 14 of the upper part 2 is designed sharp-edged.
- FIG. 5 shows the implant according to the invention consisting of four bone fixation means 1 fastened to a respective vertebral body 24 and a side member 11.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Electrophonic Musical Instruments (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002476335A CA2476335C (en) | 2002-02-11 | 2002-02-11 | Device for connecting a longitudinal member to a bone |
AT02709958T ATE300245T1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur verbindung eines längsträgers mit einem knochen |
PCT/CH2002/000080 WO2003068086A1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur verbindung eines längsträgers mit einem knochen |
AU2002227844A AU2002227844A1 (en) | 2002-02-11 | 2002-02-11 | Device for linking a longitudinal support with a bone |
MXPA04007833A MXPA04007833A (es) | 2002-02-11 | 2002-02-11 | Dispositivo para unir un soporte longitudinal a un hueso. |
JP2003567275A JP4130411B2 (ja) | 2002-02-11 | 2002-02-11 | 縦支えと骨を結合するための装置 |
DE50203795T DE50203795D1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur verbindung eines längsträgers mit einem knochen |
ES02709958T ES2244754T3 (es) | 2002-02-11 | 2002-02-11 | Dispositivo para unir un soporte longitudinal a un hueso. |
EP02709958A EP1474051B1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur verbindung eines längsträgers mit einem knochen |
US10/916,570 US7585315B2 (en) | 2002-02-11 | 2004-08-10 | Device for connecting a longitudinal member to a bone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2002/000080 WO2003068086A1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur verbindung eines längsträgers mit einem knochen |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/916,570 Continuation US7585315B2 (en) | 2002-02-11 | 2004-08-10 | Device for connecting a longitudinal member to a bone |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003068086A1 true WO2003068086A1 (de) | 2003-08-21 |
Family
ID=27671983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2002/000080 WO2003068086A1 (de) | 2002-02-11 | 2002-02-11 | Vorrichtung zur verbindung eines längsträgers mit einem knochen |
Country Status (10)
Country | Link |
---|---|
US (1) | US7585315B2 (de) |
EP (1) | EP1474051B1 (de) |
JP (1) | JP4130411B2 (de) |
AT (1) | ATE300245T1 (de) |
AU (1) | AU2002227844A1 (de) |
CA (1) | CA2476335C (de) |
DE (1) | DE50203795D1 (de) |
ES (1) | ES2244754T3 (de) |
MX (1) | MXPA04007833A (de) |
WO (1) | WO2003068086A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005122930A2 (en) * | 2004-06-14 | 2005-12-29 | Zimmer Spine, Inc. | Fastening system for spinal stabilization system |
EP1682016A2 (de) * | 2003-11-03 | 2006-07-26 | Spinal, LLC | Knochenfixationssystem mit befestigungsglied mit niedrigem profil |
WO2007087486A1 (en) * | 2006-01-30 | 2007-08-02 | Warsaw Orthopedic, Inc. | Devices and methods for attaching a rod to a vertebral member |
FR2904526A1 (fr) * | 2006-08-01 | 2008-02-08 | Warsaw Orthopedic Inc | Element d'ancrage osseux pour dispositif de correction des deformations du rachis, et dispositif de correction le comprenant. |
US8636783B2 (en) | 2006-12-29 | 2014-01-28 | Zimmer Spine, Inc. | Spinal stabilization systems and methods |
US10182846B2 (en) | 2003-09-04 | 2019-01-22 | Zimmer Spine S.A.S. | Spinal implant |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8353932B2 (en) | 2005-09-30 | 2013-01-15 | Jackson Roger P | Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member |
US7842073B2 (en) * | 2002-04-18 | 2010-11-30 | Aesculap Ii, Inc. | Screw and rod fixation assembly and device |
US6740086B2 (en) * | 2002-04-18 | 2004-05-25 | Spinal Innovations, Llc | Screw and rod fixation assembly and device |
US7967826B2 (en) * | 2003-10-21 | 2011-06-28 | Theken Spine, Llc | Connector transfer tool for internal structure stabilization systems |
US7588575B2 (en) | 2003-10-21 | 2009-09-15 | Innovative Spinal Technologies | Extension for use with stabilization systems for internal structures |
US20050143737A1 (en) * | 2003-12-31 | 2005-06-30 | John Pafford | Dynamic spinal stabilization system |
US8333789B2 (en) * | 2007-01-10 | 2012-12-18 | Gmedelaware 2 Llc | Facet joint replacement |
US7214227B2 (en) * | 2004-03-22 | 2007-05-08 | Innovative Spinal Technologies | Closure member for a medical implant device |
US7678139B2 (en) * | 2004-04-20 | 2010-03-16 | Allez Spine, Llc | Pedicle screw assembly |
US7628799B2 (en) * | 2005-08-23 | 2009-12-08 | Aesculap Ag & Co. Kg | Rod to rod connector |
US20070270813A1 (en) * | 2006-04-12 | 2007-11-22 | Laszlo Garamszegi | Pedicle screw assembly |
WO2008008511A2 (en) * | 2006-07-14 | 2008-01-17 | Laszlo Garamszegi | Pedicle screw assembly with inclined surface seat |
CN101511290A (zh) | 2006-08-01 | 2009-08-19 | 华沙整形外科股份有限公司 | 具有含杆的弹性装置的多杆系统 |
US7744632B2 (en) * | 2006-12-20 | 2010-06-29 | Aesculap Implant Systems, Inc. | Rod to rod connector |
DE602007007758D1 (de) | 2007-07-31 | 2010-08-26 | Biedermann Motech Gmbh | Knochenverankerungsvorrichtung |
US20100004693A1 (en) * | 2008-07-01 | 2010-01-07 | Peter Thomas Miller | Cam locking spine stabilization system and method |
US8118837B2 (en) | 2008-07-03 | 2012-02-21 | Zimmer Spine, Inc. | Tapered-lock spinal rod connectors and methods for use |
US8167914B1 (en) | 2008-07-16 | 2012-05-01 | Zimmer Spine, Inc. | Locking insert for spine stabilization and method of use |
US8197512B1 (en) * | 2008-07-16 | 2012-06-12 | Zimmer Spine, Inc. | System and method for spine stabilization using resilient inserts |
EP2201902B1 (de) * | 2008-12-23 | 2011-10-19 | Biedermann Motech GmbH | Aufnahmeteil für die Aufnahme einer Stange zur Kopplung der Stange in einem Knochenverankerungselement und eine Knochenverankerungsvorrichtung mit einem derartigen Aufnahmeteil |
ES2423676T3 (es) * | 2008-12-29 | 2013-09-23 | Biedermann Technologies Gmbh & Co. Kg | Pieza de alojamiento para alojar una varilla con el fin de acoplar la varilla a un elemento de anclaje de hueso, y dispositivo de anclaje de hueso con una pieza de alojamiento de este tipo |
EP2204129B1 (de) | 2008-12-30 | 2011-11-30 | Biedermann Motech GmbH | Aufnahmeteil für die Aufnahme einer Stange zur Kopplung der Stange in einem Knochenverankerungselement und eine Knochenverankerungsvorrichtung mit einem derartigen Aufnahmeteil |
US8597332B2 (en) * | 2009-02-19 | 2013-12-03 | Ulrich Gmbh & Co. Kg | Apparatus for spinal-column stabilization |
US20150105831A1 (en) | 2009-10-09 | 2015-04-16 | Synthes Usa, Lla | Tightening device for spine surgery |
US8828056B2 (en) | 2012-04-16 | 2014-09-09 | Aesculap Implant Systems, Llc | Rod to rod cross connector |
US8771319B2 (en) | 2012-04-16 | 2014-07-08 | Aesculap Implant Systems, Llc | Rod to rod cross connector |
AU2013334732B2 (en) * | 2012-10-23 | 2017-08-03 | Nexus Spine, L.L.C. | Surgical construct coupling system |
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US5584834A (en) * | 1995-07-13 | 1996-12-17 | Fastenetix, L.L.C. | Polyaxial locking screw and coupling element assembly for use with side loading rod fixation apparatus |
US5728098A (en) * | 1996-11-07 | 1998-03-17 | Sdgi Holdings, Inc. | Multi-angle bone screw assembly using shape-memory technology |
US6254602B1 (en) * | 1999-05-28 | 2001-07-03 | Sdgi Holdings, Inc. | Advanced coupling device using shape-memory technology |
US6273888B1 (en) * | 1999-05-28 | 2001-08-14 | Sdgi Holdings, Inc. | Device and method for selectively preventing the locking of a shape-memory alloy coupling system |
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-
2002
- 2002-02-11 CA CA002476335A patent/CA2476335C/en not_active Expired - Fee Related
- 2002-02-11 EP EP02709958A patent/EP1474051B1/de not_active Expired - Lifetime
- 2002-02-11 ES ES02709958T patent/ES2244754T3/es not_active Expired - Lifetime
- 2002-02-11 JP JP2003567275A patent/JP4130411B2/ja not_active Expired - Fee Related
- 2002-02-11 DE DE50203795T patent/DE50203795D1/de not_active Expired - Lifetime
- 2002-02-11 WO PCT/CH2002/000080 patent/WO2003068086A1/de active IP Right Grant
- 2002-02-11 MX MXPA04007833A patent/MXPA04007833A/es unknown
- 2002-02-11 AU AU2002227844A patent/AU2002227844A1/en not_active Abandoned
- 2002-02-11 AT AT02709958T patent/ATE300245T1/de active
-
2004
- 2004-08-10 US US10/916,570 patent/US7585315B2/en active Active
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US5584834A (en) * | 1995-07-13 | 1996-12-17 | Fastenetix, L.L.C. | Polyaxial locking screw and coupling element assembly for use with side loading rod fixation apparatus |
US5728098A (en) * | 1996-11-07 | 1998-03-17 | Sdgi Holdings, Inc. | Multi-angle bone screw assembly using shape-memory technology |
US6254602B1 (en) * | 1999-05-28 | 2001-07-03 | Sdgi Holdings, Inc. | Advanced coupling device using shape-memory technology |
US6273888B1 (en) * | 1999-05-28 | 2001-08-14 | Sdgi Holdings, Inc. | Device and method for selectively preventing the locking of a shape-memory alloy coupling system |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10182846B2 (en) | 2003-09-04 | 2019-01-22 | Zimmer Spine S.A.S. | Spinal implant |
EP1682016A2 (de) * | 2003-11-03 | 2006-07-26 | Spinal, LLC | Knochenfixationssystem mit befestigungsglied mit niedrigem profil |
EP1682016A4 (de) * | 2003-11-03 | 2008-12-24 | Spinal Llc | Knochenfixationssystem mit befestigungsglied mit niedrigem profil |
WO2005122930A2 (en) * | 2004-06-14 | 2005-12-29 | Zimmer Spine, Inc. | Fastening system for spinal stabilization system |
WO2005122930A3 (en) * | 2004-06-14 | 2006-05-26 | Zimmer Spine Inc | Fastening system for spinal stabilization system |
US7731736B2 (en) | 2004-06-14 | 2010-06-08 | Zimmer Spine, Inc. | Fastening system for spinal stabilization system |
WO2007087486A1 (en) * | 2006-01-30 | 2007-08-02 | Warsaw Orthopedic, Inc. | Devices and methods for attaching a rod to a vertebral member |
US7803175B2 (en) | 2006-01-30 | 2010-09-28 | Warsaw Orthopedic, Inc. | Devices and methods for attaching a rod to a vertebral member |
FR2904526A1 (fr) * | 2006-08-01 | 2008-02-08 | Warsaw Orthopedic Inc | Element d'ancrage osseux pour dispositif de correction des deformations du rachis, et dispositif de correction le comprenant. |
US8636783B2 (en) | 2006-12-29 | 2014-01-28 | Zimmer Spine, Inc. | Spinal stabilization systems and methods |
Also Published As
Publication number | Publication date |
---|---|
CA2476335C (en) | 2009-10-27 |
ES2244754T3 (es) | 2005-12-16 |
ATE300245T1 (de) | 2005-08-15 |
AU2002227844A1 (en) | 2003-09-04 |
DE50203795D1 (de) | 2005-09-01 |
JP2005516722A (ja) | 2005-06-09 |
EP1474051B1 (de) | 2005-07-27 |
EP1474051A1 (de) | 2004-11-10 |
JP4130411B2 (ja) | 2008-08-06 |
US7585315B2 (en) | 2009-09-08 |
CA2476335A1 (en) | 2003-08-21 |
MXPA04007833A (es) | 2004-10-15 |
US20050080419A1 (en) | 2005-04-14 |
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