US20060254784A1 - Longitudinal support - Google Patents
Longitudinal support Download PDFInfo
- Publication number
- US20060254784A1 US20060254784A1 US11/371,772 US37177206A US2006254784A1 US 20060254784 A1 US20060254784 A1 US 20060254784A1 US 37177206 A US37177206 A US 37177206A US 2006254784 A1 US2006254784 A1 US 2006254784A1
- Authority
- US
- United States
- Prior art keywords
- longitudinal support
- articulated
- support element
- segment
- head
- 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.)
- Abandoned
Links
Images
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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
- A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads
-
- 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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7014—Longitudinal elements, e.g. rods with means for adjusting the distance between two screws or hooks
-
- 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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
-
- 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
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
- A61B17/705—Connectors, not bearing on the vertebrae, for linking longitudinal elements together for linking adjacent ends of longitudinal elements
-
- 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 present invention relates generally to longitudinal support elements to stabilize bones, particularly bodies of the vertebra.
- the current treatment for damaged or tumorous bodies of the vertebra usually comprises implanting a rigid longitudinal support, anchored on the bodies of the vertebra by bone anchoring means or a rigid bone plate.
- the purpose of these devices is to prevent, by means of the rigid implants, the movement of the bodies of the vertebra stabilized in this manner relative to one another and to promote the fusion of adjacent bodies of the vertebra.
- a device to stabilize the bodies of the vertebra using a multi-segmented longitudinal support that can be fixed in a desirable form is known from document FR 2 796 828 to Jammet.
- a longitudinal support comprising a plurality of axial segments that can be joined with the head segments of pedicle screws or pedicle hooks, which for the purpose of stabilization are screwed into the pedicle of the corresponding body of the vertebra, and can be adapted without using great force to suit the form specified by the positions of the pedicle screws.
- a disadvantage of the Jammet device is that the longitudinal support elements can be fastened individually on the head segments of the pedicle screws or pedicle hooks but cannot be joined with one another. As a result, each longitudinal support element has to be individually inserted and placed into the body of the patient, representing to the surgeon a tedious and time-consuming step of the operation.
- the present invention is to provide a remedy for the above-discussed disadvantage. It is an object of the invention to produce a longitudinal support element with an articulated socket, in the cavity of which a complementary articulated head of a further longitudinal support element can be elastically snapped in, so that a longitudinal support, comprising a plurality of longitudinal support elements, can be pre-assembled outside of the patient's body.
- the present invention accomplishes the objective set out above with a longitudinal support having a first and second longitudinal support element.
- the first longitudinal support element having a longitudinal axis, includes first and second coaxial connecting segments provided with a first end and a second end, and an deformable articulated socket on the second connecting segment first longitudinal support element.
- the deformable articulated socket is axially open and can be deformed transversely to the longitudinal axis.
- the articulated socket includes a hollow spherical segment-like cavity with a diameter of D with an opening on the second end that is concentric with the longitudinal axis and has a diameter of d, while d ⁇ D.
- the first connecting segment of the first longitudinal support element has a thread extending parallel to the longitudinal axis.
- the second longitudinal support element having a longitudinal axis, includes first and second coaxial connecting segments with a first end and a second end.
- the first connecting segment is able to be connected with the first connecting segment of the longitudinal support element, and the second connecting segment includes an articulated head that is complementary to the articulated socket.
- the longitudinal support may comprise a plurality of longitudinal support elements which can be joined to one another, in a pre-assembled manner; the longitudinal support can be adapted in-situ to suit the desired geometry without using any force; and implanting of the longitudinal support can be considerably simplified. Also, because a first longitudinal support element has an articulated socket, the first longitudinal support element can be polyaxially pivotably joined with a second longitudinal support element having a complementary articulated head.
- the articulated socket can be made from a nickel-titanium alloy (Nitinol), wherein 45% ⁇ Ni ⁇ 55%, 45% ⁇ Ti ⁇ 55% and the composition of Ni and Ti equals 100%.
- Ni and Ti nickel-titanium alloy
- the articulated socket has an external spherical convex construction, thus achieving the advantage of a polyaxially pivotable accorumodation of the articulated socket in, for example, a bone anchoring means constructed as a tulip screw.
- the first connecting segment of the longitudinal support element comprises an outside thread.
- connection between a first connecting segment of a first longitudinal support element and a first connecting segment of a second longitudinal support element can be axially lengthened or shortened, so that a first longitudinal support element can be coaxially joined with a second longitudinal support element and the length of the longitudinal support segment formed by the two longitudinal support elements can be adjusted.
- This longitudinally adjustable connection between the two longitudinal support elements can telescope or be realized as a screw joint.
- the first connecting segment may be constructed as a coaxial shaft on the first longitudinal support element and the thread may be constructed as an outside thread and that the first connecting segment is constructed as a sleeve on the second longitudinal support element.
- the sleeve comprises a central bore with an inside thread that complements the outside thread.
- the articulated head has a spherical convex design and the cavity of the articulated socket is complementary to it.
- the articulated head and the articulated socket can be elastically snapped into one another. This has the advantage that a simple pre-assembly of a longitudinal support, comprising a plurality of longitudinal support segments, is possible.
- the longitudinal support comprises an end-piece with an articulated head that can be snapped into an articulated socket. This has the advantage that an articulated socket, provided at the end of the longitudinal support, will not be compressed when mounted in the receptacle on the head of a pedicle screw.
- the longitudinal support preferably comprises a second end-piece with an articulated socket.
- a device to stabilize bodies of the vertebra essentially comprises a longitudinal support according to one of the above illustrated embodiment and at least two bone anchoring means each with a central axis.
- the anchoring means have an anchoring segment to fix the bone anchoring means onto a bone, in particular on a body of the vertebra.
- the anchoring means also have a head segment with means to accommodate the articulated socket, and fixing means to fix the articulated sockets in the means to accommodate the articulated socket.
- the means to accommodate the articulated socket are constructed as a concave spherical recess that complements the articulated socket.
- the fixing means comprise a tightening screw that can be screwed into an inside thread in the head of the bone anchoring means so that an articulated socket can be secured in the bone anchoring means.
- the fixing means may comprise an elastically expandable clamp that can be placed over the articulated socket and snapped onto the head segment of the bone fixing means. After the assembly of the clamp, the articulated socket is compressed by the clamp.
- the clamp has preferably a lug on each of its free end, that can be snapped onto the head segment of the bone anchoring means. For a better acceptance of the lugs, notches complementing the lugs may be provided on the head segment.
- FIG. 1 shows a side view of an embodiment of the longitudinal support according to the invention, with type A and type B longitudinal support elements provided alternating behind one another,
- FIG. 2 a shows a longitudinal section through an embodiment of the device according to the invention
- FIG. 2 b shows a cross-section through the embodiment of the device according to the invention and illustrated in FIG. 2 a
- FIG. 3 a cross-section through another embodiment of the device according to the invention.
- FIG. 1 illustrates an embodiment of the longitudinal support 20 .
- the longitudinal support 20 has type A longitudinal support elements 7 , type B longitudinal support elements 8 , and end-pieces 18 and 21 .
- Type A longitudinal support element 7 includes first connecting segment 9 and second connecting segment 10 which are coaxial with a first longitudinal axis 23 of the longitudinal support element 7 .
- the longitudinal support element 7 has a first end 14 and a second end 15 .
- the second end 15 is located next to the second connecting segment 10 .
- the first connecting element 9 of the longitudinal support element 7 (type A) is constructed as a cylindrical shaft 31 with a thread 11 .
- the second connecting segment 10 of longitudinal support element 7 (type A) comprises an articulated socket 28 with a hollow spherical segment-like, coaxial cavity 30 .
- the socket 28 can be elastically deformed transversely to the first longitudinal axis 23 , while the cavity 30 at the second end 15 of the longitudinal support element 7 has an opening 16 that is concentric with the first longitudinal axis 23 .
- An articulated head 29 of longitudinal support element 8 (type B) (discussed later), which has a construction complementing the cavity 30 , can be introduced into the cavity 30 through the opening 16 , so that the articulated head 29 and the articulated socket 28 form a ball and socket joint.
- the longitudinal support element 8 (type B) comprises a first connecting segment 12 and a second connecting segment 13 .
- the first connecting segment 12 and the second connecting segment 13 are coaxially with a second longitudinal axis 24 of the longitudinal support element 8 (type B).
- the longitudinal support element 8 (type B) has a first end 25 and a second end 26 .
- the second connecting end 26 is located next to the second connecting segment 13 .
- the first connecting segment 12 of longitudinal support element 8 (type B) is constructed as a sleeve 32 that is coaxial with the second longitudinal axis 24 and has a central bore 33 .
- the central bore 33 is provided with an inside thread 34 , that is complementary to the thread 11 .
- the second connecting segment 13 of longitudinal support element 8 (type B) is constructed as a spherical articulated head 29 , that is complementary to the articulated socket 28 of longitudinal support element 7 (type A).
- the longitudinal support elements 7 and 8 are connected in an alternating manner with end-piece 18 at one end connected to a type A longitudinal support element 7 , and end-piece 21 at the other end connected to a type B longitudinal support element 8 .
- First connecting segment 9 of the first longitudinal support element 7 (type A) forms a coaxial connection with the first connecting segment 12 of a second longitudinal support element 8 (type B) that can be adjusted only axially longitudinally.
- a second connecting element 10 of a first longitudinal support element 7 (type A) may connect with a second connecting element 13 of a second longitudinal support element 8 (type B) and allows a polyaxially pivotable connection of the two longitudinal support elements 7 , 8 .
- first connecting segment 9 of longitudinal support element 7 (type A) and first connecting segment 12 of longitudinal support element 8 (type B) may be particularly joined by a thread connection 42 in such a manner that the first longitudinal axis 23 of the longitudinal support element 7 (type A) and the second longitudinal axis 24 of the longitudinal support element 8 (type B) are arranged coaxially.
- the thread connection 42 is constructed so that the first connecting segment 9 of the longitudinal support element 7 (type A) comprises a shaft 31 with an outside thread 11 and the first connecting segment 12 of the longitudinal support element 8 (type B) comprises a sleeve 32 with a central bore 33 having an inside thread 34 that complements the outside thread 11 .
- the construction of the threaded bore 33 may be constructed by interchanging the connecting segments 9 , 12 .
- the two longitudinal support elements 7 , 8 (types A and B), connected in the manner discussed above, are then displaceable relative one another in such a manner, that the first and the second longitudinal axis 23 , 24 can pivot relative one another about the centre of the articulate joint.
- cavity 30 has a diameter D, that is greater than the diameter d of opening 16 , so that an articulated head 29 , introduced into the cavity 30 , is axially enclosed by more than 180°.
- the articulated socket 28 may be provided with four slots 22 which are parallel to the first longitudinal axis 23 and pass through from the outside to the cavity 30 allowing radial elastic deformation of the articulated socket 28 .
- the first end-piece 18 has an analogous construction with the articulated head 29
- the second end-piece 21 has an analogous construction with the articulated socket 28
- the two end-pieces 18 , 21 allow to accommodate the articulated socket 28 and the articulated head 29 , respectively, in, for example, a commercially available pedicle screw or pedicle hook with a spherical concave recess 36 ( FIGS. 2 a and 2 b ).
- FIGS. 2 a and 2 b depict a longitudinal support 20 according to FIG. 1 used to stabilize bodies of the vertebra with two bone anchoring means 3 , connected by a longitudinal support 20 .
- the bone anchoring means 3 are constructed, for example, as pedicle screws, having a head segment 6 and a shank (anchoring) segment 5 .
- the longitudinal support 20 may comprise several longitudinal support elements 7 , 8 (type A and type B), alternating with one another.
- two longitudinal support elements 7 are articulately connected via their first connecting segments 9 with the first connecting segments 12 of two longitudinal support elements 8 (type B) and the longitudinal support element 7 (type A) is connected with the longitudinal support element 8 (type B) via its second connecting segment 10 in such a manner that it can be only axially displaceable.
- the articulated heads 29 of the second longitudinal support elements 8 may be snapped into the articulated sockets 28 of the adjacent first longitudinal support elements 7 (type A).
- channels 50 are provided on the head segments 6 , with channel axes 53 extending transversely to the central axis 4 of the bone anchoring means 3 .
- the channels 50 pass through the head segments 6 of the bone anchoring means 3 , transverse to the central axis 4 , and are open to the free end 52 of the head segment 6 .
- spherical recesses 36 at the bottom of the channels 50 complement the articulated sockets 28 .
- the head segments 6 further comprise bores 55 , penetrating from the free end 52 , with inside threads 54 .
- Fixing means 27 which secure the articulated sockets 28 are constructed in this case as tightening screws 37 and may be screwed into the inside thread 54 from the free end 52 of the head segment 6 , so that the articulated sockets 28 , placed into the channels 50 , together with the snapped-in articulated heads 29 , can be fixed in the channels 50 by tightening the tightening screws 37 .
- the articulated sockets 28 are compressed transversely to the longitudinal axes 23 of the first longitudinal support elements 7 (type A), due to which the snapped-in articulated heads 29 of the second longitudinal support elements 8 (type B) are blocked in the articulated sockets 28 .
- FIG. 3 differs from that illustrated in FIGS. 2 a and 2 b only by that the fixing means 27 is constructed as a clamp 38 , the legs 43 of which can be elastically expanded so that he clamp 38 can be guided over the articulated socket 28 and may be snapped onto the head segment 6 of the bone fixing means 3 by its elastic spring-back in such a manner, that after being assembled the articulated socket 28 is compressed by the clamp 38 .
- the articulated socket 28 is secured in the head segment 6 of the bone anchoring means 3 first by virtue of the clamp 38 and, in addition, by compressing the articulated socket 28 the articulated head 29 snapped in the articulated socket 28 is locked in the head segment 6 of the bone anchoring means 3 .
- the clamp 38 has at the free ends 39 of both legs 43 an inward directed lug 40 that may snap into the complementary notches 41 , arranged at the fixed end 51 of the head segment.
- the articulated socket 28 can be made from a nickel-titanium alloy (Nitinol), wherein 45% ⁇ Ni ⁇ 55%, 45% ⁇ Ti ⁇ 55% and the composition of Ni and Ti equals 100%.
- Ni and Ti nickel-titanium alloy
- the articulated socket 28 has an external spherical convex construction, achieving the advantage of a polyaxially pivotable accommodation of the articulated socket in, for example, a bone anchoring means constructed as a tulip screw.
- connection between a first connecting segment 9 of a longitudinal support element 7 (type A) and a first connecting segment 12 of a longitudinal support element 8 (type B) can be axially lengthened or shortened, so that the longitudinal support element 7 (type A) can be coaxially joined with a longitudinal support element 8 (type B) and the length of the longitudinal support segment formed by the two longitudinal support elements 7 and 8 can be adjusted.
- This longitudinally adjustable connection between the two longitudinal support elements 7 and 8 can telescope or be realized as a screw joint.
- first connecting segment 9 can be constructed as a coaxial (cylindrical) shaft 31 on the longitudinal support element 7 (type A) and the thread 11 be constructed as an outside thread and the first connecting segment 12 constructed as a sleeve 32 on the longitudinal support element 8 (type B), the sleeve 32 comprising a central bore 33 with an inside thread 34 that complements the outside thread 11 .
- the articulated head 29 has a spherical convex design and the cavity 30 of the articulated socket 28 is complementary to it.
- the articulated head 29 and the articulated socket 28 may be elastically snapped into one another. This has the advantage that simple pre-assembly of a longitudinal support 20 , comprising a plurality of longitudinal support segments, is possible.
- the longitudinal support 20 comprises an end-piece 18 with an articulated head that can be snapped into an articulated socket 28 .
- the longitudinal support preferably comprises a second end-piece with an articulated socket.
- the means to accommodate the articulated socket 28 are constructed as a concave spherical recess, that complements the articulated socket 28 .
- all bone anchoring means 3 in particular the pedicle screws or pedicle hooks, are placed by the surgeon onto the pedicles of the bodies of the vertebra to be fixed.
- the longitudinal support elements 7 , 8 (type A and type B) are then joined alternating together outside of the patient's body until the longitudinal support 20 has the desired length and contains the desired number of joints.
- the assembled longitudinal support 20 is then introduced into the patient's body by a minimally invasive incision and placed below the soft tissue surrounding the body of the vertebra to be fixed and is bent at the articulated joints until the assembled longitudinal support 20 has the desired shape and the articulated heads 29 are introduced into the means 35 to accommodate the articulated heads 29 on the bone anchoring means 3 .
- the fixing means 27 are pre-assembled on the head segments 6 of the bone anchoring means 3 , i.e., not yet locked, so that the longitudinal support 20 can still be adjusted.
- the shape of the longitudinal support 20 as well as the distances of the individual longitudinal support elements 7 , 8 are still flexibly adjustable.
- the fixing means 27 are locked and consequently the entire fixing device is fixed.
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)
- Materials For Medical Uses (AREA)
- Supports For Pipes And Cables (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
- This application is a continuation of International Patent Application No. PCT/CH2003/000605, filed Sep. 8, 2003, the entire contents of which is expressly incorporated herein by reference.
- The present invention relates generally to longitudinal support elements to stabilize bones, particularly bodies of the vertebra.
- The current treatment for damaged or tumorous bodies of the vertebra usually comprises implanting a rigid longitudinal support, anchored on the bodies of the vertebra by bone anchoring means or a rigid bone plate. The purpose of these devices is to prevent, by means of the rigid implants, the movement of the bodies of the vertebra stabilized in this manner relative to one another and to promote the fusion of adjacent bodies of the vertebra.
- A device to stabilize the bodies of the vertebra using a multi-segmented longitudinal support that can be fixed in a desirable form, is known from document FR 2 796 828 to Jammet. By using the Jammet device, a longitudinal support, comprising a plurality of axial segments that can be joined with the head segments of pedicle screws or pedicle hooks, which for the purpose of stabilization are screwed into the pedicle of the corresponding body of the vertebra, and can be adapted without using great force to suit the form specified by the positions of the pedicle screws. A disadvantage of the Jammet device is that the longitudinal support elements can be fastened individually on the head segments of the pedicle screws or pedicle hooks but cannot be joined with one another. As a result, each longitudinal support element has to be individually inserted and placed into the body of the patient, representing to the surgeon a tedious and time-consuming step of the operation.
- The present invention is to provide a remedy for the above-discussed disadvantage. It is an object of the invention to produce a longitudinal support element with an articulated socket, in the cavity of which a complementary articulated head of a further longitudinal support element can be elastically snapped in, so that a longitudinal support, comprising a plurality of longitudinal support elements, can be pre-assembled outside of the patient's body.
- The present invention accomplishes the objective set out above with a longitudinal support having a first and second longitudinal support element. The first longitudinal support element having a longitudinal axis, includes first and second coaxial connecting segments provided with a first end and a second end, and an deformable articulated socket on the second connecting segment first longitudinal support element. The deformable articulated socket is axially open and can be deformed transversely to the longitudinal axis. The articulated socket includes a hollow spherical segment-like cavity with a diameter of D with an opening on the second end that is concentric with the longitudinal axis and has a diameter of d, while d<D. Further, the first connecting segment of the first longitudinal support element has a thread extending parallel to the longitudinal axis. The second longitudinal support element having a longitudinal axis, includes first and second coaxial connecting segments with a first end and a second end. The first connecting segment is able to be connected with the first connecting segment of the longitudinal support element, and the second connecting segment includes an articulated head that is complementary to the articulated socket.
- The advantages achieved by the longitudinal support are that the longitudinal support may comprise a plurality of longitudinal support elements which can be joined to one another, in a pre-assembled manner; the longitudinal support can be adapted in-situ to suit the desired geometry without using any force; and implanting of the longitudinal support can be considerably simplified. Also, because a first longitudinal support element has an articulated socket, the first longitudinal support element can be polyaxially pivotably joined with a second longitudinal support element having a complementary articulated head.
- In a preferred embodiment, the articulated socket can be made from a nickel-titanium alloy (Nitinol), wherein 45%<Ni<55%, 45%<Ti<55% and the composition of Ni and Ti equals 100%. Such a material is biocompatible and highly elastic.
- In another embodiment, the articulated socket has an external spherical convex construction, thus achieving the advantage of a polyaxially pivotable accorumodation of the articulated socket in, for example, a bone anchoring means constructed as a tulip screw.
- In yet another embodiment, the first connecting segment of the longitudinal support element comprises an outside thread.
- In a preferred embodiment, the connection between a first connecting segment of a first longitudinal support element and a first connecting segment of a second longitudinal support element can be axially lengthened or shortened, so that a first longitudinal support element can be coaxially joined with a second longitudinal support element and the length of the longitudinal support segment formed by the two longitudinal support elements can be adjusted. This longitudinally adjustable connection between the two longitudinal support elements can telescope or be realized as a screw joint. For this purpose, the first connecting segment may be constructed as a coaxial shaft on the first longitudinal support element and the thread may be constructed as an outside thread and that the first connecting segment is constructed as a sleeve on the second longitudinal support element. The sleeve comprises a central bore with an inside thread that complements the outside thread.
- In a further embodiment, the articulated head has a spherical convex design and the cavity of the articulated socket is complementary to it.
- In another embodiment, the articulated head and the articulated socket can be elastically snapped into one another. This has the advantage that a simple pre-assembly of a longitudinal support, comprising a plurality of longitudinal support segments, is possible.
- In yet another embodiment, the longitudinal support comprises an end-piece with an articulated head that can be snapped into an articulated socket. This has the advantage that an articulated socket, provided at the end of the longitudinal support, will not be compressed when mounted in the receptacle on the head of a pedicle screw. The longitudinal support preferably comprises a second end-piece with an articulated socket.
- In a further embodiment, a device to stabilize bodies of the vertebra essentially comprises a longitudinal support according to one of the above illustrated embodiment and at least two bone anchoring means each with a central axis. The anchoring means have an anchoring segment to fix the bone anchoring means onto a bone, in particular on a body of the vertebra. The anchoring means also have a head segment with means to accommodate the articulated socket, and fixing means to fix the articulated sockets in the means to accommodate the articulated socket.
- In a preferred embodiment, the means to accommodate the articulated socket are constructed as a concave spherical recess that complements the articulated socket.
- In another embodiment, the fixing means comprise a tightening screw that can be screwed into an inside thread in the head of the bone anchoring means so that an articulated socket can be secured in the bone anchoring means.
- In yet another embodiment, the fixing means may comprise an elastically expandable clamp that can be placed over the articulated socket and snapped onto the head segment of the bone fixing means. After the assembly of the clamp, the articulated socket is compressed by the clamp. This has the advantage, that due to the compressing of the second articulated part, the articulated socket is locked between the two longitudinal support segments, and the longitudinal support is fixed on the bone anchoring means. The clamp has preferably a lug on each of its free end, that can be snapped onto the head segment of the bone anchoring means. For a better acceptance of the lugs, notches complementing the lugs may be provided on the head segment.
- The longitudinal support is explained in even greater detail in the following exemplary drawings. The longitudinal support may be better understood by reference to the following drawings, wherein like references numerals represent like elements. The drawings are merely exemplary to illustrate the structure, operation and method of use of the longitudinal support and certain features that may be used singularly or in combination with other features and the invention should not be limited to the embodiments shown.
-
FIG. 1 shows a side view of an embodiment of the longitudinal support according to the invention, with type A and type B longitudinal support elements provided alternating behind one another, -
FIG. 2 a shows a longitudinal section through an embodiment of the device according to the invention, -
FIG. 2 b shows a cross-section through the embodiment of the device according to the invention and illustrated inFIG. 2 a, and -
FIG. 3 a cross-section through another embodiment of the device according to the invention. -
FIG. 1 illustrates an embodiment of thelongitudinal support 20. Thelongitudinal support 20 has type Alongitudinal support elements 7, type Blongitudinal support elements 8, and end-pieces - Type A
longitudinal support element 7 includes first connectingsegment 9 and second connectingsegment 10 which are coaxial with a firstlongitudinal axis 23 of thelongitudinal support element 7. Thelongitudinal support element 7 has afirst end 14 and asecond end 15. Thesecond end 15 is located next to the second connectingsegment 10. The first connectingelement 9 of the longitudinal support element 7 (type A) is constructed as acylindrical shaft 31 with athread 11. The second connectingsegment 10 of longitudinal support element 7 (type A) comprises an articulatedsocket 28 with a hollow spherical segment-like,coaxial cavity 30. Thesocket 28 can be elastically deformed transversely to the firstlongitudinal axis 23, while thecavity 30 at thesecond end 15 of thelongitudinal support element 7 has anopening 16 that is concentric with the firstlongitudinal axis 23. An articulatedhead 29 of longitudinal support element 8 (type B) (discussed later), which has a construction complementing thecavity 30, can be introduced into thecavity 30 through theopening 16, so that the articulatedhead 29 and the articulatedsocket 28 form a ball and socket joint. - The longitudinal support element 8 (type B) comprises a first connecting
segment 12 and a second connectingsegment 13. The first connectingsegment 12 and the second connectingsegment 13 are coaxially with a second longitudinal axis 24 of the longitudinal support element 8 (type B). The longitudinal support element 8 (type B) has afirst end 25 and asecond end 26. The second connectingend 26 is located next to the second connectingsegment 13. The first connectingsegment 12 of longitudinal support element 8 (type B) is constructed as asleeve 32 that is coaxial with the second longitudinal axis 24 and has acentral bore 33. Thecentral bore 33 is provided with aninside thread 34, that is complementary to thethread 11. The second connectingsegment 13 of longitudinal support element 8 (type B) is constructed as a spherical articulatedhead 29, that is complementary to the articulatedsocket 28 of longitudinal support element 7 (type A). - The
longitudinal support elements piece 18 at one end connected to a type Alongitudinal support element 7, and end-piece 21 at the other end connected to a type Blongitudinal support element 8. First connectingsegment 9 of the first longitudinal support element 7 (type A) forms a coaxial connection with the first connectingsegment 12 of a second longitudinal support element 8 (type B) that can be adjusted only axially longitudinally. A second connectingelement 10 of a first longitudinal support element 7 (type A) may connect with a second connectingelement 13 of a second longitudinal support element 8 (type B) and allows a polyaxially pivotable connection of the twolongitudinal support elements segment 9 of longitudinal support element 7 (type A) and first connectingsegment 12 of longitudinal support element 8 (type B) may be particularly joined by athread connection 42 in such a manner that the firstlongitudinal axis 23 of the longitudinal support element 7 (type A) and the second longitudinal axis 24 of the longitudinal support element 8 (type B) are arranged coaxially. Thethread connection 42 is constructed so that the first connectingsegment 9 of the longitudinal support element 7 (type A) comprises ashaft 31 with anoutside thread 11 and the first connectingsegment 12 of the longitudinal support element 8 (type B) comprises asleeve 32 with acentral bore 33 having aninside thread 34 that complements theoutside thread 11. The construction of the threaded bore 33 may be constructed by interchanging the connectingsegments - The two
longitudinal support elements 7, 8 (types A and B), connected in the manner discussed above, are then displaceable relative one another in such a manner, that the first and the secondlongitudinal axis 23, 24 can pivot relative one another about the centre of the articulate joint. Furthermore,cavity 30 has a diameter D, that is greater than the diameter d of opening 16, so that an articulatedhead 29, introduced into thecavity 30, is axially enclosed by more than 180°. In addition, the articulatedsocket 28 may be provided with fourslots 22 which are parallel to the firstlongitudinal axis 23 and pass through from the outside to thecavity 30 allowing radial elastic deformation of the articulatedsocket 28. - The first end-
piece 18 has an analogous construction with the articulatedhead 29, while the second end-piece 21 has an analogous construction with the articulatedsocket 28. The two end-pieces socket 28 and the articulatedhead 29, respectively, in, for example, a commercially available pedicle screw or pedicle hook with a spherical concave recess 36 (FIGS. 2 a and 2 b). -
FIGS. 2 a and 2 b depict alongitudinal support 20 according toFIG. 1 used to stabilize bodies of the vertebra with two bone anchoring means 3, connected by alongitudinal support 20. The bone anchoring means 3 are constructed, for example, as pedicle screws, having ahead segment 6 and a shank (anchoring)segment 5. Thelongitudinal support 20 may comprise severallongitudinal support elements 7, 8 (type A and type B), alternating with one another. As illustrated, two longitudinal support elements 7 (type A) are articulately connected via their first connectingsegments 9 with the first connectingsegments 12 of two longitudinal support elements 8 (type B) and the longitudinal support element 7 (type A) is connected with the longitudinal support element 8 (type B) via its second connectingsegment 10 in such a manner that it can be only axially displaceable. The articulated heads 29 of the second longitudinal support elements 8 (type B) may be snapped into the articulatedsockets 28 of the adjacent first longitudinal support elements 7 (type A). To connecthead segments 6, having afixed end 51, of the bone anchoring means 3 with the articulatedsockets 29,channels 50 are provided on thehead segments 6, withchannel axes 53 extending transversely to the central axis 4 of the bone anchoring means 3. Thechannels 50 pass through thehead segments 6 of the bone anchoring means 3, transverse to the central axis 4, and are open to thefree end 52 of thehead segment 6. For a polyaxially pivotable mounting of the articulatedsockets 28 in thechannels 50,spherical recesses 36 at the bottom of thechannels 50 complement the articulatedsockets 28. Thehead segments 6 further comprise bores 55, penetrating from thefree end 52, withinside threads 54. Fixing means 27 which secure the articulatedsockets 28 are constructed in this case as tighteningscrews 37 and may be screwed into theinside thread 54 from thefree end 52 of thehead segment 6, so that the articulatedsockets 28, placed into thechannels 50, together with the snapped-in articulatedheads 29, can be fixed in thechannels 50 by tightening the tightening screws 37. When fixing the articulatedsockets 28, the articulatedsockets 28 are compressed transversely to thelongitudinal axes 23 of the first longitudinal support elements 7 (type A), due to which the snapped-in articulatedheads 29 of the second longitudinal support elements 8 (type B) are blocked in the articulatedsockets 28. - The embodiment illustrated in
FIG. 3 differs from that illustrated inFIGS. 2 a and 2 b only by that the fixing means 27 is constructed as aclamp 38, thelegs 43 of which can be elastically expanded so that he clamp 38 can be guided over the articulatedsocket 28 and may be snapped onto thehead segment 6 of the bone fixing means 3 by its elastic spring-back in such a manner, that after being assembled the articulatedsocket 28 is compressed by theclamp 38. Thus, the articulatedsocket 28 is secured in thehead segment 6 of the bone anchoring means 3 first by virtue of theclamp 38 and, in addition, by compressing the articulatedsocket 28 the articulatedhead 29 snapped in the articulatedsocket 28 is locked in thehead segment 6 of the bone anchoring means 3. To fasten theclamp 38 on thehead segment 6, theclamp 38 has at the free ends 39 of bothlegs 43 an inward directedlug 40 that may snap into thecomplementary notches 41, arranged at thefixed end 51 of the head segment. - In a preferred embodiment, the articulated
socket 28 can be made from a nickel-titanium alloy (Nitinol), wherein 45%<Ni<55%, 45%<Ti<55% and the composition of Ni and Ti equals 100%. Such a material is biocompatible and highly elastic. - In another embodiment, the articulated
socket 28 has an external spherical convex construction, achieving the advantage of a polyaxially pivotable accommodation of the articulated socket in, for example, a bone anchoring means constructed as a tulip screw. - In another embodiment, the connection between a first connecting
segment 9 of a longitudinal support element 7 (type A) and a first connectingsegment 12 of a longitudinal support element 8 (type B) can be axially lengthened or shortened, so that the longitudinal support element 7 (type A) can be coaxially joined with a longitudinal support element 8 (type B) and the length of the longitudinal support segment formed by the twolongitudinal support elements longitudinal support elements segment 9 can be constructed as a coaxial (cylindrical)shaft 31 on the longitudinal support element 7 (type A) and thethread 11 be constructed as an outside thread and the first connectingsegment 12 constructed as asleeve 32 on the longitudinal support element 8 (type B), thesleeve 32 comprising acentral bore 33 with aninside thread 34 that complements theoutside thread 11. - In a further embodiment, the articulated
head 29 has a spherical convex design and thecavity 30 of the articulatedsocket 28 is complementary to it. - In another embodiment, the articulated
head 29 and the articulatedsocket 28 may be elastically snapped into one another. This has the advantage that simple pre-assembly of alongitudinal support 20, comprising a plurality of longitudinal support segments, is possible. - In yet another embodiment, the
longitudinal support 20 comprises an end-piece 18 with an articulated head that can be snapped into an articulatedsocket 28. This has the advantage that an articulatedsocket 28, provided at the end of the longitudinal support, will not be compressed when mounted in the receptacle on the head of a pedicle screw. The longitudinal support preferably comprises a second end-piece with an articulated socket. - In another embodiment, the means to accommodate the articulated
socket 28 are constructed as a concave spherical recess, that complements the articulatedsocket 28. - A method of inserting the
longitudinal support 20 into a patient will now be described. First, all bone anchoring means 3, in particular the pedicle screws or pedicle hooks, are placed by the surgeon onto the pedicles of the bodies of the vertebra to be fixed. - The
longitudinal support elements 7, 8 (type A and type B) are then joined alternating together outside of the patient's body until thelongitudinal support 20 has the desired length and contains the desired number of joints. The assembledlongitudinal support 20 is then introduced into the patient's body by a minimally invasive incision and placed below the soft tissue surrounding the body of the vertebra to be fixed and is bent at the articulated joints until the assembledlongitudinal support 20 has the desired shape and the articulated heads 29 are introduced into themeans 35 to accommodate the articulated heads 29 on the bone anchoring means 3. Following this, the fixing means 27 are pre-assembled on thehead segments 6 of the bone anchoring means 3, i.e., not yet locked, so that thelongitudinal support 20 can still be adjusted. At this stage the shape of thelongitudinal support 20, as well as the distances of the individuallongitudinal support elements longitudinal support 20 is set, the fixing means 27 are locked and consequently the entire fixing device is fixed. - Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
Claims (19)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2003/000605 WO2005023125A1 (en) | 2003-09-08 | 2003-09-08 | Longitudinal support |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2003/000605 Continuation WO2005023125A1 (en) | 2003-09-08 | 2003-09-08 | Longitudinal support |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060254784A1 true US20060254784A1 (en) | 2006-11-16 |
Family
ID=34230817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/371,772 Abandoned US20060254784A1 (en) | 2003-09-08 | 2006-03-08 | Longitudinal support |
Country Status (13)
Country | Link |
---|---|
US (1) | US20060254784A1 (en) |
EP (1) | EP1663031B1 (en) |
JP (1) | JP2007506453A (en) |
CN (1) | CN100435745C (en) |
AR (1) | AR045611A1 (en) |
AT (1) | ATE407634T1 (en) |
AU (1) | AU2003258438B2 (en) |
BR (1) | BR0318482A (en) |
CA (1) | CA2538105A1 (en) |
DE (1) | DE50310488D1 (en) |
ES (1) | ES2315576T3 (en) |
NZ (1) | NZ545758A (en) |
WO (1) | WO2005023125A1 (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110319998A1 (en) * | 2010-06-24 | 2011-12-29 | O'neil Michael J | Universal Trial for Lateral Cages |
EP2531126A2 (en) * | 2010-02-04 | 2012-12-12 | Spinefrontier, Inc. | Spinal screw assembly |
US20130274803A1 (en) * | 2010-08-24 | 2013-10-17 | Mahamad Hamza Hilali Ideros Noordeen | Vertebral Fixation Apparatus for the Correction of Spinal Deformities |
US20140114357A1 (en) * | 2011-04-25 | 2014-04-24 | Nexus Spine, L.L.C. | Surgical construct coupling system |
US9226764B2 (en) | 2012-03-06 | 2016-01-05 | DePuy Synthes Products, Inc. | Conformable soft tissue removal instruments |
US20170135827A1 (en) * | 2011-03-22 | 2017-05-18 | DePuy Synthes Products, Inc. | Universal Trial for Lateral Cages |
US9931224B2 (en) | 2009-11-05 | 2018-04-03 | DePuy Synthes Products, Inc. | Self-pivoting spinal implant and associated instrumentation |
US10022245B2 (en) | 2012-12-17 | 2018-07-17 | DePuy Synthes Products, Inc. | Polyaxial articulating instrument |
US10321936B2 (en) | 2015-03-19 | 2019-06-18 | Ngmedical Gmbh | Polyaxial pedicle screw with a head in the shape of a ball segment |
US10966843B2 (en) | 2017-07-18 | 2021-04-06 | DePuy Synthes Products, Inc. | Implant inserters and related methods |
US11045331B2 (en) | 2017-08-14 | 2021-06-29 | DePuy Synthes Products, Inc. | Intervertebral implant inserters and related methods |
US11344424B2 (en) | 2017-06-14 | 2022-05-31 | Medos International Sarl | Expandable intervertebral implant and related methods |
US11426290B2 (en) | 2015-03-06 | 2022-08-30 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
US11432942B2 (en) | 2006-12-07 | 2022-09-06 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11446156B2 (en) | 2018-10-25 | 2022-09-20 | Medos International Sarl | Expandable intervertebral implant, inserter instrument, and related methods |
US11446155B2 (en) | 2017-05-08 | 2022-09-20 | Medos International Sarl | Expandable cage |
US11452607B2 (en) | 2010-10-11 | 2022-09-27 | DePuy Synthes Products, Inc. | Expandable interspinous process spacer implant |
US11497619B2 (en) | 2013-03-07 | 2022-11-15 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11510788B2 (en) | 2016-06-28 | 2022-11-29 | Eit Emerging Implant Technologies Gmbh | Expandable, angularly adjustable intervertebral cages |
US11596522B2 (en) | 2016-06-28 | 2023-03-07 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable intervertebral cages with articulating joint |
US11602438B2 (en) | 2008-04-05 | 2023-03-14 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11607321B2 (en) | 2009-12-10 | 2023-03-21 | DePuy Synthes Products, Inc. | Bellows-like expandable interbody fusion cage |
US11612491B2 (en) | 2009-03-30 | 2023-03-28 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
US11622868B2 (en) | 2007-06-26 | 2023-04-11 | DePuy Synthes Products, Inc. | Highly lordosed fusion cage |
US11654033B2 (en) | 2010-06-29 | 2023-05-23 | DePuy Synthes Products, Inc. | Distractible intervertebral implant |
US11737881B2 (en) | 2008-01-17 | 2023-08-29 | DePuy Synthes Products, Inc. | Expandable intervertebral implant and associated method of manufacturing the same |
US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
US11806245B2 (en) | 2020-03-06 | 2023-11-07 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
US11872139B2 (en) | 2010-06-24 | 2024-01-16 | DePuy Synthes Products, Inc. | Enhanced cage insertion assembly |
USRE49973E1 (en) | 2013-02-28 | 2024-05-21 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8137385B2 (en) * | 2005-10-31 | 2012-03-20 | Stryker Spine | System and method for dynamic vertebral stabilization |
US8029545B2 (en) * | 2006-02-07 | 2011-10-04 | Warsaw Orthopedic Inc. | Articulating connecting member and anchor systems for spinal stabilization |
US7806913B2 (en) | 2006-08-16 | 2010-10-05 | Depuy Spine, Inc. | Modular multi-level spine stabilization system and method |
TWI403305B (en) * | 2010-09-28 | 2013-08-01 | Spiral rod connection device | |
TWI405555B (en) * | 2010-09-28 | 2013-08-21 | The attachment mechanism of the spinal fixation system | |
TWI403307B (en) * | 2010-09-28 | 2013-08-01 | Spiral rod connection device | |
TWI403306B (en) * | 2010-09-28 | 2013-08-01 | The attachment mechanism of the spinal fixation system | |
CN105250017B (en) * | 2015-11-30 | 2018-03-06 | 昆明医科大学第二附属医院 | A kind of orthopedic rod connector that multidirectional offer angle compensation is provided |
US10085778B2 (en) | 2016-03-04 | 2018-10-02 | Spinal Elements, Inc. | Rod reducer instrument for spinal surgery |
CN106344138B (en) * | 2016-03-07 | 2019-03-01 | 无锡市闻泰百得医疗器械有限公司 | A kind of fixedly adjustable angle pitman of novel lumbar spondylolysis |
CN114404010A (en) * | 2021-12-23 | 2022-04-29 | 山东师范大学 | Adjustable vertebral lamina hook internal fixation device for lumbar isthmus fissure |
Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5154718A (en) * | 1988-12-21 | 1992-10-13 | Zimmer, Inc. | Spinal coupler assembly |
US5480442A (en) * | 1993-06-24 | 1996-01-02 | Man Ceramics Gmbh | Fixedly adjustable intervertebral prosthesis |
US5520689A (en) * | 1992-06-04 | 1996-05-28 | Synthes (U.S.A.) | Osteosynthetic fastening device |
US5540688A (en) * | 1991-05-30 | 1996-07-30 | Societe "Psi" | Intervertebral stabilization device incorporating dampers |
US5575791A (en) * | 1994-07-27 | 1996-11-19 | Lin; Chih-I | Universal eccentric fixation mechanism for orthopedic surgery |
US5961516A (en) * | 1996-08-01 | 1999-10-05 | Graf; Henry | Device for mechanically connecting and assisting vertebrae with respect to one another |
US5984923A (en) * | 1996-05-09 | 1999-11-16 | Science Et Medecine (Sem) | Anti-shifting system for spinal arthrodesis bar |
US6007079A (en) * | 1997-02-14 | 1999-12-28 | American Axle & Manufacturing, Inc. | Direct acting end link for stabilizer bar |
US6139549A (en) * | 1996-04-09 | 2000-10-31 | Waldemar Link (Gmbh & Co.) | Spinal fixing device |
US20010012937A1 (en) * | 2000-02-07 | 2001-08-09 | Ulrich Gmbh & Co. Kg | Polyaxial pedicle screw |
US6296644B1 (en) * | 1998-08-26 | 2001-10-02 | Jean Saurat | Spinal instrumentation system with articulated modules |
US20020013586A1 (en) * | 2000-03-01 | 2002-01-31 | Justis Jeff R. | Superelastic spinal stabilization system and method |
US6454773B1 (en) * | 1996-11-07 | 2002-09-24 | Sdgi Holdings, Inc. | Multi-angle bone screw assembly using shape-memory technology |
US20020143341A1 (en) * | 2001-03-27 | 2002-10-03 | Lutz Biedermann | Anchoring element |
US20030004511A1 (en) * | 2001-06-27 | 2003-01-02 | Ferree Bret A. | Polyaxial pedicle screw system |
US6547789B1 (en) * | 1999-07-02 | 2003-04-15 | Sulzer Orthopedics Ltd. | Holding apparatus for the spinal column |
US20030114852A1 (en) * | 2001-01-12 | 2003-06-19 | Lutz Biedermann | Connector element for bone rods or spinal rods |
US20030153912A1 (en) * | 2000-06-30 | 2003-08-14 | Henry Graf | Intervertebral connecting device |
US6626904B1 (en) * | 1999-07-27 | 2003-09-30 | Societe Etudes Et Developpements - Sed | Implantable intervertebral connection device |
USRE39089E1 (en) * | 1995-04-13 | 2006-05-02 | Fastenetix, Llc | Polyaxial pedicle screw having a threaded and tapered compression locking mechanism |
US7083621B2 (en) * | 2003-04-25 | 2006-08-01 | Sdgi Holdings, Inc. | Articulating spinal fixation rod and system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9004960U1 (en) * | 1990-05-02 | 1991-08-29 | Pfeil, Joachim, Dr.Med. | Halo fixator for the treatment of cervical spine diseases and injuries |
DE9402695U1 (en) * | 1994-02-18 | 1994-04-14 | Kernforschungszentrum Karlsruhe Gmbh, 76133 Karlsruhe | Implant |
EP1064885A1 (en) * | 1999-07-02 | 2001-01-03 | Sulzer Orthopedics Ltd. | Spinal fixator |
CN2528400Y (en) * | 2001-05-16 | 2003-01-01 | 阎德强 | Bar-interlink articular orthotast |
AU2003210964A1 (en) * | 2002-02-13 | 2003-09-04 | Cross Medical Products, Inc. | Posterior polyaxial system for the spine |
-
2003
- 2003-09-08 ES ES03818483T patent/ES2315576T3/en not_active Expired - Lifetime
- 2003-09-08 BR BRPI0318482-0A patent/BR0318482A/en not_active IP Right Cessation
- 2003-09-08 CN CNB038270447A patent/CN100435745C/en not_active Expired - Fee Related
- 2003-09-08 NZ NZ545758A patent/NZ545758A/en not_active IP Right Cessation
- 2003-09-08 EP EP03818483A patent/EP1663031B1/en not_active Expired - Lifetime
- 2003-09-08 DE DE50310488T patent/DE50310488D1/en not_active Expired - Lifetime
- 2003-09-08 WO PCT/CH2003/000605 patent/WO2005023125A1/en active IP Right Grant
- 2003-09-08 CA CA002538105A patent/CA2538105A1/en not_active Abandoned
- 2003-09-08 AT AT03818483T patent/ATE407634T1/en not_active IP Right Cessation
- 2003-09-08 JP JP2005508662A patent/JP2007506453A/en not_active Withdrawn
- 2003-09-08 AU AU2003258438A patent/AU2003258438B2/en not_active Expired - Fee Related
-
2004
- 2004-09-08 AR ARP040103218A patent/AR045611A1/en unknown
-
2006
- 2006-03-08 US US11/371,772 patent/US20060254784A1/en not_active Abandoned
Patent Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5154718A (en) * | 1988-12-21 | 1992-10-13 | Zimmer, Inc. | Spinal coupler assembly |
US5540688A (en) * | 1991-05-30 | 1996-07-30 | Societe "Psi" | Intervertebral stabilization device incorporating dampers |
US5520689A (en) * | 1992-06-04 | 1996-05-28 | Synthes (U.S.A.) | Osteosynthetic fastening device |
US5480442A (en) * | 1993-06-24 | 1996-01-02 | Man Ceramics Gmbh | Fixedly adjustable intervertebral prosthesis |
US5575791A (en) * | 1994-07-27 | 1996-11-19 | Lin; Chih-I | Universal eccentric fixation mechanism for orthopedic surgery |
USRE39089E1 (en) * | 1995-04-13 | 2006-05-02 | Fastenetix, Llc | Polyaxial pedicle screw having a threaded and tapered compression locking mechanism |
US6139549A (en) * | 1996-04-09 | 2000-10-31 | Waldemar Link (Gmbh & Co.) | Spinal fixing device |
US5984923A (en) * | 1996-05-09 | 1999-11-16 | Science Et Medecine (Sem) | Anti-shifting system for spinal arthrodesis bar |
US5961516A (en) * | 1996-08-01 | 1999-10-05 | Graf; Henry | Device for mechanically connecting and assisting vertebrae with respect to one another |
US6454773B1 (en) * | 1996-11-07 | 2002-09-24 | Sdgi Holdings, Inc. | Multi-angle bone screw assembly using shape-memory technology |
US6007079A (en) * | 1997-02-14 | 1999-12-28 | American Axle & Manufacturing, Inc. | Direct acting end link for stabilizer bar |
US6296644B1 (en) * | 1998-08-26 | 2001-10-02 | Jean Saurat | Spinal instrumentation system with articulated modules |
US6547789B1 (en) * | 1999-07-02 | 2003-04-15 | Sulzer Orthopedics Ltd. | Holding apparatus for the spinal column |
US6626904B1 (en) * | 1999-07-27 | 2003-09-30 | Societe Etudes Et Developpements - Sed | Implantable intervertebral connection device |
US20010012937A1 (en) * | 2000-02-07 | 2001-08-09 | Ulrich Gmbh & Co. Kg | Polyaxial pedicle screw |
US20020013586A1 (en) * | 2000-03-01 | 2002-01-31 | Justis Jeff R. | Superelastic spinal stabilization system and method |
US20030153912A1 (en) * | 2000-06-30 | 2003-08-14 | Henry Graf | Intervertebral connecting device |
US20030114852A1 (en) * | 2001-01-12 | 2003-06-19 | Lutz Biedermann | Connector element for bone rods or spinal rods |
US20020143341A1 (en) * | 2001-03-27 | 2002-10-03 | Lutz Biedermann | Anchoring element |
US20030004511A1 (en) * | 2001-06-27 | 2003-01-02 | Ferree Bret A. | Polyaxial pedicle screw system |
US7083621B2 (en) * | 2003-04-25 | 2006-08-01 | Sdgi Holdings, Inc. | Articulating spinal fixation rod and system |
Cited By (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11712345B2 (en) | 2006-12-07 | 2023-08-01 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11432942B2 (en) | 2006-12-07 | 2022-09-06 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11660206B2 (en) | 2006-12-07 | 2023-05-30 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11497618B2 (en) | 2006-12-07 | 2022-11-15 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11642229B2 (en) | 2006-12-07 | 2023-05-09 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11622868B2 (en) | 2007-06-26 | 2023-04-11 | DePuy Synthes Products, Inc. | Highly lordosed fusion cage |
US11737881B2 (en) | 2008-01-17 | 2023-08-29 | DePuy Synthes Products, Inc. | Expandable intervertebral implant and associated method of manufacturing the same |
US12011361B2 (en) | 2008-04-05 | 2024-06-18 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11701234B2 (en) | 2008-04-05 | 2023-07-18 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11712342B2 (en) | 2008-04-05 | 2023-08-01 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11602438B2 (en) | 2008-04-05 | 2023-03-14 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11712341B2 (en) | 2008-04-05 | 2023-08-01 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11707359B2 (en) | 2008-04-05 | 2023-07-25 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US12023255B2 (en) | 2008-04-05 | 2024-07-02 | DePuy Synthes Products, Inc. | Expandable inter vertebral implant |
US11617655B2 (en) | 2008-04-05 | 2023-04-04 | DePuy Synthes Products, Inc. | Expandable intervertebral implant |
US11612491B2 (en) | 2009-03-30 | 2023-03-28 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
US10195049B2 (en) | 2009-11-05 | 2019-02-05 | DePuy Synthes Products, Inc. | Self-pivoting spinal implant and associated instrumentation |
US9931224B2 (en) | 2009-11-05 | 2018-04-03 | DePuy Synthes Products, Inc. | Self-pivoting spinal implant and associated instrumentation |
US11712349B2 (en) | 2009-11-05 | 2023-08-01 | DePuy Synthes Products, Inc. | Self-pivoting spinal implant and associated instrumentation |
US10792166B2 (en) | 2009-11-05 | 2020-10-06 | DePuy Synthes Products, Inc. | Self-pivoting spinal implant and associated instrumentation |
US11607321B2 (en) | 2009-12-10 | 2023-03-21 | DePuy Synthes Products, Inc. | Bellows-like expandable interbody fusion cage |
EP2531126A4 (en) * | 2010-02-04 | 2014-10-01 | Spinefrontier Inc | Spinal screw assembly |
EP2531126A2 (en) * | 2010-02-04 | 2012-12-12 | Spinefrontier, Inc. | Spinal screw assembly |
US9763678B2 (en) | 2010-06-24 | 2017-09-19 | DePuy Synthes Products, Inc. | Multi-segment lateral cage adapted to flex substantially in the coronal plane |
US20110319998A1 (en) * | 2010-06-24 | 2011-12-29 | O'neil Michael J | Universal Trial for Lateral Cages |
US10588754B2 (en) | 2010-06-24 | 2020-03-17 | DePuy Snythes Products, Inc. | Lateral spondylolisthesis reduction cage and instruments and methods for non-parallel disc space preparation |
US10449057B2 (en) | 2010-06-24 | 2019-10-22 | DePuy Synthes Products, Inc. | Lateral spondylolisthesis reduction cage |
US10405989B2 (en) | 2010-06-24 | 2019-09-10 | DePuy Synthes Products, Inc. | Lateral spondylolisthesis reduction cage |
US11872139B2 (en) | 2010-06-24 | 2024-01-16 | DePuy Synthes Products, Inc. | Enhanced cage insertion assembly |
US9907560B2 (en) | 2010-06-24 | 2018-03-06 | DePuy Synthes Products, Inc. | Flexible vertebral body shavers |
US10646350B2 (en) | 2010-06-24 | 2020-05-12 | DePuy Synthes Products, Inc. | Multi-segment lateral cages adapted to flex substantially in the coronal plane |
US9801640B2 (en) | 2010-06-24 | 2017-10-31 | DePuy Synthes Products, Inc. | Lateral spondylolisthesis reduction cage |
US9282979B2 (en) | 2010-06-24 | 2016-03-15 | DePuy Synthes Products, Inc. | Instruments and methods for non-parallel disc space preparation |
US9801639B2 (en) | 2010-06-24 | 2017-10-31 | DePuy Synthes Products, Inc. | Lateral spondylolisthesis reduction cage |
US11911287B2 (en) | 2010-06-24 | 2024-02-27 | DePuy Synthes Products, Inc. | Lateral spondylolisthesis reduction cage |
US9592063B2 (en) * | 2010-06-24 | 2017-03-14 | DePuy Synthes Products, Inc. | Universal trial for lateral cages |
US11654033B2 (en) | 2010-06-29 | 2023-05-23 | DePuy Synthes Products, Inc. | Distractible intervertebral implant |
US20130274803A1 (en) * | 2010-08-24 | 2013-10-17 | Mahamad Hamza Hilali Ideros Noordeen | Vertebral Fixation Apparatus for the Correction of Spinal Deformities |
US11452607B2 (en) | 2010-10-11 | 2022-09-27 | DePuy Synthes Products, Inc. | Expandable interspinous process spacer implant |
US20170135827A1 (en) * | 2011-03-22 | 2017-05-18 | DePuy Synthes Products, Inc. | Universal Trial for Lateral Cages |
US11369490B2 (en) * | 2011-03-22 | 2022-06-28 | DePuy Synthes Products, Inc. | Universal trial for lateral cages |
US20140114357A1 (en) * | 2011-04-25 | 2014-04-24 | Nexus Spine, L.L.C. | Surgical construct coupling system |
US9226764B2 (en) | 2012-03-06 | 2016-01-05 | DePuy Synthes Products, Inc. | Conformable soft tissue removal instruments |
US10022245B2 (en) | 2012-12-17 | 2018-07-17 | DePuy Synthes Products, Inc. | Polyaxial articulating instrument |
USRE49973E1 (en) | 2013-02-28 | 2024-05-21 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
US11850164B2 (en) | 2013-03-07 | 2023-12-26 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11497619B2 (en) | 2013-03-07 | 2022-11-15 | DePuy Synthes Products, Inc. | Intervertebral implant |
US11426290B2 (en) | 2015-03-06 | 2022-08-30 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
US10321936B2 (en) | 2015-03-19 | 2019-06-18 | Ngmedical Gmbh | Polyaxial pedicle screw with a head in the shape of a ball segment |
US11596523B2 (en) | 2016-06-28 | 2023-03-07 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable articulating intervertebral cages |
US11510788B2 (en) | 2016-06-28 | 2022-11-29 | Eit Emerging Implant Technologies Gmbh | Expandable, angularly adjustable intervertebral cages |
US11596522B2 (en) | 2016-06-28 | 2023-03-07 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable intervertebral cages with articulating joint |
US11446155B2 (en) | 2017-05-08 | 2022-09-20 | Medos International Sarl | Expandable cage |
US11344424B2 (en) | 2017-06-14 | 2022-05-31 | Medos International Sarl | Expandable intervertebral implant and related methods |
US10966843B2 (en) | 2017-07-18 | 2021-04-06 | DePuy Synthes Products, Inc. | Implant inserters and related methods |
US11690734B2 (en) | 2017-08-14 | 2023-07-04 | DePuy Synthes Products, Inc. | Intervertebral implant inserters and related methods |
US11045331B2 (en) | 2017-08-14 | 2021-06-29 | DePuy Synthes Products, Inc. | Intervertebral implant inserters and related methods |
US11446156B2 (en) | 2018-10-25 | 2022-09-20 | Medos International Sarl | Expandable intervertebral implant, inserter instrument, and related methods |
US11806245B2 (en) | 2020-03-06 | 2023-11-07 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
US12023258B2 (en) | 2021-04-06 | 2024-07-02 | Medos International Sarl | Expandable intervertebral fusion cage |
Also Published As
Publication number | Publication date |
---|---|
DE50310488D1 (en) | 2008-10-23 |
AU2003258438B2 (en) | 2009-07-09 |
JP2007506453A (en) | 2007-03-22 |
NZ545758A (en) | 2009-03-31 |
CN100435745C (en) | 2008-11-26 |
CA2538105A1 (en) | 2005-03-17 |
AU2003258438A1 (en) | 2005-03-29 |
EP1663031B1 (en) | 2008-09-10 |
AR045611A1 (en) | 2005-11-02 |
EP1663031A1 (en) | 2006-06-07 |
CN1893883A (en) | 2007-01-10 |
WO2005023125A1 (en) | 2005-03-17 |
ATE407634T1 (en) | 2008-09-15 |
BR0318482A (en) | 2006-09-12 |
ES2315576T3 (en) | 2009-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20060254784A1 (en) | Longitudinal support | |
US11058461B2 (en) | Intervertebral fusion implant | |
US11006978B2 (en) | Revision connector for spinal constructs | |
EP1429671B1 (en) | Connection rod for screw or hook polyaxial system | |
US9119676B2 (en) | Bone screw fixation | |
US20080021455A1 (en) | Articulating Sacral or Iliac Connector | |
JP2007513738A (en) | Flexible spinal fixation element | |
KR20090078784A (en) | Transconnector | |
AU2002327801A1 (en) | Connection rod for screw or hook polyaxial system and method of use | |
EP4103083A1 (en) | Integrated multipoint fixation screw | |
US20220395299A1 (en) | Bone anchoring device | |
JP7343717B2 (en) | modular tension spinal screw | |
EP3900654B1 (en) | Bone anchoring device | |
ZA200601545B (en) | Longitudinal support | |
KR20060079213A (en) | Longitudinal support |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SYNTHES GMBH, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HARTMANN, STEPHAN;STUDER, ARMIN;REEL/FRAME:017574/0092 Effective date: 20060308 |
|
AS | Assignment |
Owner name: SYNTHES (USA), PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SYNTHES GMBH;REEL/FRAME:017789/0491 Effective date: 20060609 |
|
AS | Assignment |
Owner name: HFSC COMPANY, PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SYNTHES (USA);REEL/FRAME:017919/0471 Effective date: 20060623 |
|
AS | Assignment |
Owner name: SYNTHES (USA),PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HFSC COMPANY;REEL/FRAME:018280/0469 Effective date: 20060920 Owner name: SYNTHES (USA), PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HFSC COMPANY;REEL/FRAME:018280/0469 Effective date: 20060920 |
|
AS | Assignment |
Owner name: SYNTHES USA, LLC, PENNSYLVANIA Free format text: CHANGE OF NAME;ASSIGNOR:SYNTHES (U.S.A.);REEL/FRAME:022826/0140 Effective date: 20081223 Owner name: SYNTHES USA, LLC,PENNSYLVANIA Free format text: CHANGE OF NAME;ASSIGNOR:SYNTHES (U.S.A.);REEL/FRAME:022826/0140 Effective date: 20081223 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: DEPUY SYNTHES PRODUCTS, LLC, MASSACHUSETTS Free format text: CHANGE OF NAME;ASSIGNOR:HAND INNOVATIONS LLC;REEL/FRAME:030359/0036 Effective date: 20121231 Owner name: HAND INNOVATIONS LLC, FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEPUY SPINE, LLC;REEL/FRAME:030359/0001 Effective date: 20121230 Owner name: DEPUY SPINE, LLC, MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SYNTHES USA, LLC;REEL/FRAME:030358/0945 Effective date: 20121230 |
|
AS | Assignment |
Owner name: HAND INNOVATIONS LLC, FLORIDA Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT APPL. NO. 13/486,591 PREVIOUSLY RECORDED AT REEL: 030359 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:DEPUY SPINE, LLC;REEL/FRAME:042621/0565 Effective date: 20121230 |
|
AS | Assignment |
Owner name: DEPUY SPINE, LLC, MASSACHUSETTS Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT APPLICATION NO. US 13/486,591 PREVIOUSLY RECORDED ON REEL 030358 FRAME 0945. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:SYNTHES USA, LLC;REEL/FRAME:042687/0849 Effective date: 20121230 |