US20110282394A1 - Bone Plate with Rings - Google Patents
Bone Plate with Rings Download PDFInfo
- Publication number
- US20110282394A1 US20110282394A1 US13/190,370 US201113190370A US2011282394A1 US 20110282394 A1 US20110282394 A1 US 20110282394A1 US 201113190370 A US201113190370 A US 201113190370A US 2011282394 A1 US2011282394 A1 US 2011282394A1
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- United States
- Prior art keywords
- ring
- bone
- head
- plate
- screw
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- Abandoned
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Classifications
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- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
- A61B17/8047—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers wherein the additional element surrounds the screw head in the plate hole
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- 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
- A61B17/7059—Cortical plates
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
Definitions
- the invention generally relates to bone plates. More particularly, the invention relates to a plate system having a mechanism for fixably attaching screws to a plate at a selected angle.
- spinal fixation plates for correction of spinal deformities and for fusion of vertebrae is well known.
- a rigid plate is positioned to span bones or bone segments that need to be immobilized with respect to one another. Bone screws may be used to fasten the plate to the bones.
- Spinal plating systems are commonly used to correct problems in the lumbar and cervical portions of the spine, and are often installed posterior or anterior to the spine.
- Bone screws are placed either bi-cortically or uni-cortically through the bone. Uni-cortical positioning of bone screws has grown in popularity because it is inherently safer to use. Bi-cortical screws are intended to breach the distal cortex for maximum anchorage into the bone; however, this may place distal soft tissue structures at risk. Screw placement is of particular importance in anterior cervical plate procedures because of the presence of the spinal cord opposite the distal cortex. Unfortunately, because of the soft texture of the bone marrow, the uni-cortical screws may undergo movement from their desired positions. In fact, the portion of the bone surrounding such screws may fail to maintain the screws in their proper positions, resulting in screw backout.
- Screw backout is particularly a problem when a pair of screws is implanted perpendicular to the plate. When the screws are placed in such a manner, screw backout can occur as a result of bone failure over a region that is the size of the outer diameter of the screw threads.
- a different configuration of the screws has been developed in which two screws are angled in converging or diverging directions within the bone.
- the amount of bone that is required to fail before screw backout can occur is increased by this configuration as compared to screws which are implanted in parallel.
- positioning screws angled toward or away from each other in a bone reduces the risk of a screw backout, such backouts can still happen.
- the result of a screw backout can be damaging to internal tissue structures such as the esophagus because a dislocated screw may penetrate the surface of such structures.
- a plating system that includes a screw to plate ring is the AlineTM Anterior Cervical Plating System sold by Smith & Nephew Richards Inc. in Memphis, Tenn. A description of this system can be found in the AlineTM Anterior Cervical Plating System Surgical Technique Manual available from Smith & Nephew Richards Inc. and is incorporated by reference as if fully set forth herein.
- the bone screws of this system have openings within each bone screw head for receiving a lock screw coaxially therein. Each bone screw may be inserted into a bone such that the head of the screw is positioned within a borehole of a plate placed adjacent to the bone.
- each bone screw is slotted such that portions of the head may be deflected toward the plate during insertion of the lock screw within the opening of the bone screw.
- the bone screw may be thusly locked against the plate.
- inserting the lock screw into and fixably positioning the lock screw within the opening may be difficult since the lock screw is very small. The surgeon may be unable to hold onto the lock screw without dropping it. Unfortunately, once such a tiny screw falls into the surgical wound, it may be unretrievable.
- a plating system is provided that largely eliminates or reduces the aforementioned disadvantages of conventional bone plating constructions.
- An embodiment of the invention relates to an implant system that includes a plate having end boreholes, midline boreholes, screws, and expandable/contractible rings.
- the end boreholes preferably extend from the upper surface to the lower surface of the plate.
- the end boreholes may be disposed in pairs at opposite ends of the plate.
- Each end borehole is preferably sized to receive at least a portion of a head of a screw therein.
- Each end borehole is also preferably spherical shaped to permit the screw to be “obliquely angulated” relative to the plate.
- “obliquely angulated” is taken to mean that the screw may be positioned at a wide range of angles relative to the plate, wherein the range of angles is preferably from 0 degrees to about 15 degrees from an imaginary axis that is perpendicular to the plate. Since the screws may be obliquely angulated with respect to the plate, the occurrence of screw backout from a bone may be significantly reduced.
- the expandable/contractible rings are preferably sized so that they may be positioned within each borehole between the plate and each of the screw heads.
- the inner surface of each ring is preferably shaped to mate with a screw head while the outer surface is preferably shaped to mate with the plate.
- the outer surface of each screw head may be tapered such that an upper portion of the head is larger than a lower portion of the head.
- Each ring may also have a gap that extends vertically through the ring to render it expandable/contractible.
- the ring preferably exerts a compressive force on the screw head to fixably connect the screw to the plate. Since the screw is attached to the plate, the screw may be prevented from contacting tissue structures even when screw backout occurs.
- the midline boreholes may be formed through the plate at various locations along a midline axis extending across the plate.
- the surface of the plate that surrounds each midline borehole is preferably tapered.
- the heads of screws that may be positioned within the plates preferably have tapered outer surfaces that are shaped to mate with the tapered surface of the plate.
- the shape of the plate causes the screw to become fixably attached to the plate in a position that is substantially perpendicular to the plate. Since the midline boreholes may be used when inserting screws into bone graft, oblique angulation of screws positioned within the midline boreholes is not required.
- the expandable/contractible rings may be placed within the end boreholes of the plate.
- the plate may then be positioned adjacent to a portion of a bone. Holes may be drilled and tapped into a portion of the bone underlying each end borehole at the desired angle. Screws may be inserted through the end boreholes into the holes, and the heads of the screws may be positioned within the boreholes such that the rings surround at least a portion of the heads.
- the rings preferably lock the screws in place without occupying regions outside of the boreholes. Further, since the rings are pre-positioned within the end boreholes, surgeons do not have to worry that they may drop the rings during insertion of the screws.
- FIG. 1 is a top plan view of one embodiment of a plating system
- FIG. 2 is a cross-sectional view of the plating system along plane I of FIG. 1 ;
- FIG. 3 is a cross-sectional view of a screw within an end borehole of a plate, wherein the screw is positioned according to one embodiment of the invention
- FIG. 4 is a cross-sectional view of the screw, wherein the screw is positioned according to another embodiment
- FIG. 5 is a cross-sectional view of the plating system along plane II of FIG. 1 , wherein a pair of screws extend in diverging directions, according to one embodiment;
- FIG. 6 is a cross-sectional view of the plating system along plane II of FIG. 1 , wherein the pair of screws extend in converging directions, according to another embodiment;
- FIG. 7 is a side view in partial cross-section of a fixation system that includes a screw, a ring, and a plate;
- FIG. 8 is a top view of an embodiment of the plate depicted in FIG. 7 ;
- FIG. 9 is a cross-sectional view of a tapered screwhead connected to a tapered ring through a threaded engagement
- FIG. 10A is a cross-sectional view of a ring having a tapered inner surface
- FIG. 10B is a cross-sectional view of a ring having a non-tapered inner surface
- FIG. 11A is a cross-sectional view of a screw head having a tapered outer surface
- FIG. 11B is a cross-sectional view of a screw head having a non-tapered outer surface
- FIG. 12 depicts a side view of a ring having a plurality of slots.
- FIG. 13 depicts a cross-sectional view of a screw head positioned within a ring.
- FIG. 1 depicts a top plan view of an embodiment of a plating system.
- the plating system may be used to correct problems in the lumbar and cervical portions of the spine.
- the plating system may be implanted into the occiput bone which is located at the base of the skull.
- the plating system may be preferably installed anterior to the spine.
- the plating system preferably includes a plate 10 that may be placed adjacent to a portion of the spine.
- the length of plate 10 may be preferably chosen so that the plate may span between at least two vertebrae.
- Plate 10 preferably includes a pair of end boreholes 12 and 14 located at opposite ends 16 of plate 10 . End boreholes 12 and 14 are preferably formed vertically through plate 10 such that they extend from an upper surface to a lower surface of the plate. End boreholes 12 and 14 are preferably spaced from a longitudinal midline axis 21 of plate 10 by the same distance.
- End boreholes 12 and 14 are preferably shaped to receive the heads of bone screws 20 .
- the plating system further includes rings 18 that may be disposed within each of the end boreholes 12 and 14 for fixedly attaching bone screws 20 to plate 10 .
- a gap 19 preferably exists in each of the rings 18 to enable the rings to contract or expand under pressure.
- the plating system may also include midline boreholes 22 that extend vertically through plate 10 at some point along the midline axis 21 of plate 10 .
- one of the midline boreholes 22 is located at the middle of plate 10 while the other midline boreholes are offset from the middle.
- the head of screw 24 may be positioned within one of the midline boreholes 22 .
- This configuration of midline boreholes 22 may provide a surgeon with more options as to the location of a screw 24 so that the screw may be placed in the most desirable location.
- a screw 24 may be used to connect plate 10 to bone graft.
- Those elements that make up the plating system are preferably composed of steel, pure titanium, or of titanium alloys. Such materials are generally nontoxic, biocompatible, strong, and noncorrosive. Other materials which have these properties may also be used to form the elements.
- FIG. 2 illustrates a cross-sectional view of the plating system along plane I of FIG. 1 .
- FIG. 2 shows how screw 24 is attached to plate 10 within one of the midline boreholes 22 .
- Screw 24 preferably includes a head 26 and a shank 28 that extends from the base of head 26 .
- the inner surface of a portion 30 of plate 10 that surrounds borehole 22 is preferably tapered, making borehole 22 larger at the top than at the bottom.
- the outer surface of head 26 is also preferably tapered so that head 26 may fit snugly within borehole 22 .
- the shape of plate 10 and head 26 preferably promotes attachment of screw 24 to plate 10 .
- the shank of the screw is preferably screwed into a hole that has been formed in the bone graft underlying borehole 22 . Because the bottom portion of borehole 22 is smaller than the upper portion of the screw head 26 , screw 24 may become locked into place within borehole 22 once it has been screwed to a desired depth within the bone graft.
- the plate is also shown as having a slight curvature to enhance its fixation to the bone.
- FIG. 3 depicts a cross-sectional view of an embodiment of one of the end boreholes 12 and 14 in which screw 20 is disposed.
- Borehole 12 is preferably substantially spherical in shape so that a head 32 of screw 20 may be rotated and moved to various positions within borehole 12 .
- Ring 18 is preferably sized to fit into borehole 12 between plate 10 and head 32 .
- the outer surface of ring 18 is preferably curved to permit movement of the ring within borehole 12 .
- the combination of ring 18 and borehole 12 is like that of a ball and socket since ring 18 may be rotated both horizontally and vertically in clockwise and counterclockwise directions within borehole 12 . Ring 18 may also be rotated in directions that are angled away from the horizontal and vertical directions.
- FIG. 1 depicts a cross-sectional view of an embodiment of one of the end boreholes 12 and 14 in which screw 20 is disposed.
- Borehole 12 is preferably substantially spherical in shape so that a head 32
- ring 18 at least partially surrounds head 32 of screw 20 which is positioned within borehole 12 .
- a shank 34 of bone screw 20 preferably has threading 36 to allow the screw to be inserted into a bone when it is rotated in a clockwise direction.
- Head 32 preferably includes a cavity 42 that extends from the top of the head to an inner portion of the head. Cavity 42 may be shaped to receive the end of any fastening device (e.g., a socket wrench) that may be used to turn screw 20 .
- Screw 20 may be simultaneously screwed into a bone and moved to its desired position.
- the inner surface of ring 18 and the outer surface of head 32 are preferably tapered and shaped to mate with each other.
- the bottom portion of head 32 is preferably smaller than the upper portion of ring 18 .
- head 32 preferably applies a radial force to ring 18 , thereby causing the ring to expand within the borehole and increase the size of gap 19 .
- An interference fit may form between screw head 32 , ring 18 , and plate 10 in which these elements fit so tightly together that they obstruct the movements of each other.
- the hoop stress of ring 18 on head 32 may fixedly attach screw 20 to plate 10 .
- screw head 32 and ring 18 may be positioned within borehole 12 such that their left sides are at a higher elevation than their right sides.
- FIG. 3 shows that positioning screw head 32 in this configuration may result in a centerline 38 of shank 34 being obliquely angulated with respect to plate 10 .
- centerline 38 may be positioned where it is at an angle ranging from 0 to 15 degrees with respect to an imaginary axis 40 which is perpendicular to plate 10 .
- FIG. 3 demonstrates shank 34 of screw 20 being angled to the left of imaginary axis 40 while FIG. 4 demonstrates shank 34 being angled to the right of imaginary axis 40 .
- Screw 20 is not limited to these positions and can be angled in various directions, such as into the page.
- FIG. 5 and FIG. 6 depict different embodiments of the plating system along plane II of FIG. 1 .
- FIG. 5 shows that screws 20 may be positioned within end boreholes 12 and 14 such that they extend in converging directions with respect to each other.
- the screws 20 depicted in FIG. 6 are shown as being positioned such that their shanks 34 extend in diverging directions with respect to each other. Screws 20 may be moved to such positions as described above. Since bone screws 20 may be placed in diverging or converging directions through end boreholes 12 and 14 at both ends of plate 10 , screw backout may be greatly reduced. Further, the use of rings 18 to fixedly attach screws 20 to plate 10 may prevent damage to tissue structures by any screws that are able to escape from the bone.
- Rings 18 preferably do not extend above the upper surface of plate 10 , and thus advantageously do not contact tissue structures.
- Screw 20 may be placed in a uni-cortical position within the bone since the problem of screw backout is greatly reduced by the diverging or converging screw configurations.
- the plating system of FIG. 1 is prepared for surgical implantation by pre-positioning of rings 18 within end boreholes 12 and 14 .
- holes may be drilled and tapped into the bones to which plate 10 is to be attached.
- Plate 10 may then be positioned adjacent to the bones.
- Each of the screws 20 may be screwed into the bone holes while they are being positioned within their corresponding boreholes 12 and 14 .
- Each pair of screws 20 at opposite ends 16 of plate 10 may be positioned so that shanks of the screws are at oblique angles relative to the plate.
- the insertion force of each screw 20 into each ring 18 preferably causes the ring to exert a compressive force on the screw head, thereby fixably connecting the screws to plate 10 .
- screw 24 may be positioned in one of the midline boreholes 22 such that screw 24 attaches to plate 10 .
- FIG. 7 A side view of an embodiment of a plating system 100 is shown in FIG. 7 .
- Plating system 100 preferably includes a bone screw 120 , a ring 118 , and a bone plate 110 .
- Plate 110 may be used to stabilize a bony structure to facilitate a bone fusion.
- the bone screw 120 may be used to connect plate 110 to a bone.
- a vertebra may be an example of a bone.
- Ring 118 preferably fixes bone screw 120 to plate 110 at a selected angle that depends upon the patient's anatomy.
- Bone screw 120 , ring 118 , and bone plate 110 are preferably capable of being used in similar applications as screw 20 , ring 18 , and plate 10 as previously described in FIGS. 1-6 .
- FIG. 8 A top view of an embodiment of plate 110 is shown in FIG. 8 .
- Plate 110 preferably includes one or more boreholes 112 and may function similarly to plate 10 as described above.
- Each borehole 112 preferably has a curvate inner surface 113 (shown in FIG. 7 ) for engaging the outer surface 123 of ring 118 .
- the inner surface 113 preferably has the shape of a portion of an outer surface of a sphere.
- Borehole 112 has a width that is defined across the inner surface 113 of the borehole.
- the width of the borehole may vary in a direction axially through the borehole. In FIG. 7 , for example, the width of the boreholes preferably increases from a top surface 102 of the plate to about the middle of the plate.
- the width of the borehole in FIG. 7 then preferably decreases from about the middle of the plate to a lower surface 104 of the plate such that the borehole has a maximum width near the midpoint between upper surface 102 and lower surface
- the outer surface 123 of ring 118 is preferably curvate for engaging the inner surface 113 of the borehole.
- the shape of surfaces 123 and 113 preferably allow ring 118 to swivel within the borehole.
- the swiveling action may be similar to that of a ball and socket joint.
- the ring preferably surrounds at least a portion of the head 125 of a bone screw.
- the enlarged end 127 disposed on head 125 is optional and need not be included if it inhibits angulation of the bone screw.
- the swiveling of the ring within the borehole preferably enables the shank 135 of the bone screw 120 to rotate in a substantially conical range of motion. In this manner, the head is preferably movable within the borehole, and the shank is adjustably positionable at a plurality of angles substantially oblique to the plate.
- the surfaces 123 and 113 are preferably shaped to provide a conical range of motion to the shank that is within a preferred range of angles.
- the head is preferably movable within the borehole such that the shank can be positioned at a selected angle relative to an imaginary axis running perpendicular to the plate proximate borehole 112 .
- the selected angle is preferably less than about 45 degrees, more preferably less than about 30 degrees, and more preferably still less than about 15 degrees.
- Ring 118 preferably has an outer width that is less than or about equal to the width of borehole 112 at a location between upper surface 102 and lower surface 104 of the plate. In this manner, ring 118 may be positioned within borehole 112 proximate the middle of the borehole to enable the bone screw 120 to extend substantially perpendicularly from the bone plate 110 . Prior to surgery, rings 118 are preferably pre-positioned within boreholes 112 of plate 110 . “Pre-positioned” is taken to mean that the rings are capable of swiveling within the borehole but are preferably inhibited from falling out of the borehole because of the reduced width of the borehole proximate the upper and lower surfaces.
- the width of the borehole proximate the upper and lower surfaces of plate 110 is preferably less than or about equal to the outer width of the ring to inhibit the ring from falling out of the borehole. In this manner, the surgeon may use a plate 110 having rings 118 pre-positioned within the boreholes 112 such that the rings will not fall into the surgical wound when plating system 100 is installed.
- the rings 118 can be manually positioned within the boreholes during surgery.
- Ring 118 preferably includes one or more slots or gaps 19 (as shown in FIG. 1 ).
- the slot preferable allows the ring to be contracted or expanded. Contraction of ring 118 may allow the ring to be positioned within the borehole during surgery. Once positioned within the borehole the ring preferably expands and is inhibited from falling out of the borehole.
- the ring 118 is preferably capable of being swiveled such that one portion of the ring is adjacent to upper surface 102 of plate 110 while another portion of the ring lies adjacent to lower surface 104 of plate 110 .
- the ring is preferably sufficiently thin to allow it to reside within the borehole without extending from the borehole beyond the upper surface 102 or lower surface 104 of the plate.
- the ring and screw head remain within the borehole 112 to minimize the profile width of plating system 100 .
- the bone screw 120 may be capable of being angulated relative to the plate 110 such that the ring 118 extends from the borehole 112 beyond a surface of the plate 110 .
- the head 125 is preferably screwed into ring 118 to create a fixed connection between bone screw 120 and plate 110 at a selected angle.
- screw head 125 preferably contains head threading 121 on its outer surface that is complementary to ring threading 119 contained on the inner surface of ring 118 .
- the head threading 121 preferably mates with the ring threading 119 to enhance the connection between the bone screw 120 and the ring 118 .
- the head 125 preferably has a cavity 142 formed on its upper surface for receiving a driving tool such as a screw driver or an Allen wrench.
- the outer surface of the head 125 is preferably tapered so that screwing the head into the ring causes a change in width (e.g., expansion) of the ring 118 to fix the bone screw 120 in position relative to the plate 110 .
- the inner surface of the ring 118 may also be tapered to substantially match the taper on the outer surface of the head. At least a portion of the head 125 preferably has a width greater than the inner width of the ring 118 . As the screw head is screwed into the ring 118 , the ring preferably expands outwardly from its inner surface to accommodate the increasing width of the screw head 125 .
- the ring 118 may contain a slot or gap 19 (as shown in FIG.
- the slot is preferably widened as a result of force received from head 125 .
- the force exerted by head 125 against the inner surface of ring 118 preferably presses the ring into a fixed engagement against inner surface 113 of borehole 112 .
- ring 118 may contain one or more partial slots 145 , as depicted in FIG. 12 .
- Each partial slot 145 preferably extends from a top 147 or bottom 149 of ring 118 into the ring. Partial slots may extend up to about midpoint 148 of ring 118 .
- a plurality of slots 145 may be oriented about the ring such that alternate slots extend from the top 147 and/or the bottom 149 of ring 118 , as depicted in FIG. 12 . These alternating partial slots preferably facilitate the expansion and contraction of ring 118 .
- FIGS. 10A and 10B Cross-sectional views of two embodiments of ring 118 are shown in FIGS. 10A and 10B .
- the ring may contain an inner surface that is tapered (as shown in FIG. 10A ) or that is substantially untapered (as shown in FIG. 10B ).
- Cross sectional views of two embodiments of screw 120 are shown in FIGS. 11A and 11B .
- the head 125 may have a substantially untapered outer surface (as shown in FIG. 11A ) or a substantially tapered outer surface (as shown in FIG. 11B ).
- each of the heads of the screws depicted in FIGS. 11A and 11B may be used in combination with either of the rings 118 depicted in FIG. 10A or FIG. 10B .
- the head of the screw may include an outer surface having a substantially untapered portion along with a tapered portion proximate its end for expanding the ring 118 .
- a “ring” is taken to mean any member capable of fitting between the inner surface 113 borehole and the bone screw 120 to connect the bone screw to the bone plate 110 .
- the ring is preferably substantially circular to surround head 125 , but the ring may instead have a non-circular shape.
- the ring may be made of a number of biocompatible materials including metals, plastics, and composites.
- the head threading 121 on the head 125 and the ring threading 119 on the inner surface of ring 118 is preferably substantially fine relative to the threading 136 on bone screw 120 . That is, the pitch of the head threading 121 and ring threading 119 is preferably smaller than that on bone screw 120 .
- the ring threading 119 preferably has multiple starts to facilitate connection of the bone screw and the ring. In one embodiment, the ring threading 119 has a double start such that the head can be started into the ring threading at either one of two orientations offset by 180 degrees. In another embodiment, the ring threading has a triple start such that the head can be started into the ring threading at any one of three orientations offset by 120 degrees.
- the ring threading 119 and head threading 121 are preferably pitched to a substantially similar degree to the threading 136 on the bone screw 120 .
- the ring threading 119 and head threading 121 are pitched such that the head 125 causes expansion of the ring 118 while the bone screw 120 is being inserted into the bone.
- holes may be drilled and tapped into the bones to which plate 110 is to be attached.
- Plate 110 may then be positioned adjacent to the bones.
- a ring 118 may be positioned within the borehole.
- a bone screw 120 may be positioned through ring 118 such that the head threading 121 of head 125 engages the ring threading 119 of ring 118 .
- the bone screw 120 may then be rotated to insert the bone screw into the bone.
- the head threads and ring threads preferably interact such that the head is moved into the ring. Movement of the head 125 into the ring 118 preferably causes the ring to expand such that the orientation of the bone screw 120 relative to the plate 110 is fixed.
- the ring threading and head threading is pitched such the orientation of the bone screw 120 is fixed after plate 110 engages the bone.
- the bone screws may be used in pairs to prevent screw backout.
- the bone screws are preferably positioned into the bone in substantially converging or substantially diverging directions relative to one another.
- a stronger connection between the bone screw 120 and the plate 110 may be formed by texturing either outer surface 131 of head 125 of bone screw 120 or inner surface 133 of ring 118 , as depicted in FIG. 13 .
- both surfaces are textured to inhibit movement of the bone screw with respect to the plate.
- outer surface 131 of head 125 and inner surface 133 of ring 118 may be formed as relatively smooth surfaces. While the friction between these smooth surfaces tends to be sufficient to maintain bone screw 120 in a fixed position with respect to plate 110 , under stressful conditions the bone screw may be forced out of ring 118 .
- the coefficient of friction of the surface may be increased so that a large amount of force is needed to overcome the frictional connection between head 125 of bone screw 120 and ring 118 . This increase in friction between bone screw 120 and ring 118 may further inhibit screw backout from plate 110 .
- a number of textured surfaces may be used to increase the coefficient of friction between ring 118 and head 125 of bone screw 120 .
- any process which transforms a relatively smooth surface into a roughened surface having an increased coefficient of friction may be used.
- Methods for forming a roughened surface include, but are not limited to: sanding, forming grooves within a surface, ball peening processes, electric discharge processes, and embedding of hard particles within a surface.
- a plurality of grooves may be formed in outer surface 131 of head 125 of bone screw 120 or inner surface 133 of ring 118 .
- a plurality of grooves is formed in both outer surface 131 and inner surface 133 . While it is preferred that both outer surface 131 and the inner surface 133 be textured, texturing of only one of the surfaces may be sufficient to attain additional resistance to movement.
- the frictional surface may be created by an electrical discharge process.
- An electrical discharge process is based on the principle of removal of portions of a metal surface by spark discharges. Typically a spark is generated between the surface to be treated and an electrode by creating potential differential between the tool and the electrode. The spark produced tends to remove a portion of the surface disposed between the electrode and the surface.
- the electrode is relatively small such that only small portions of the surface are removed.
- By moving the electrode about the surface numerous cavities may be formed within the surface. Typically these cavities are somewhat pyramidal in shape. Various patterns may be formed within the surface depending on how the electrode is positioned during the discharge. Electric discharge machines are well known in the art. A method for forming a frictional surface within a metal surface using an electric discharge process is described in U.S. Pat. No. 4,964,641 to Miesch et al. which is incorporated by reference as if set forth herein.
- a variety of patterns may be formed using an electric discharge machine.
- a diamond pattern or a waffle pattern is formed on either inner surface 133 of ring 118 or outer surface 131 of head 125 of bone screw 120 .
- inner surface 131 of ring 118 and/or outer surface 133 of head 125 of bone screw 120 may be textured by the use of a shot peening process.
- a shot peening process for forming a textured surface is described in U.S. Pat. No. 5,526,664 to Vetter which is incorporated by reference as if set forth herein.
- a shot peening process involves propelling a stream of hardened balls, typically made of steel, at a relatively high velocity at a surface. To create a pattern upon an area of the surface the stream is typically moved about the surface. The speed by which the stream is moved about the surface tends to determine the type of textured surface formed.
- the stream is moved such that a pattern resulting in a textured surface having ridges and valleys is formed on inner surface 133 of ring 118 and outer surface 131 of head 125 of bone screw 120 .
- the ridges and valleys may interact with each other to provide additional resistance to movement in either a longitudinal direction or a direction perpendicular to the longitudinal axis.
- the textured surface may be produced by embedding sharp hardened particles in the surface.
- a method for embedding sharp hardened particles in a metal surface is described in U.S. Pat. No. 4,768,787 to Shira which is incorporated by reference as if set forth herein.
- the method of Shira involves using a laser or other high energy source to heat the surface such that the surface melts in selected areas. Just before the molten area re-solidifies, a stream of abrasive particles is directed to the area. In this manner some of the particles tend to become embedded within the molten surface.
- the particles typically have a number of sharp edges that protrude from the surface after the particles have been embedded within the surface.
- outer surface 131 of head 125 of bone screw 120 may be textured using a pattern of grooves.
- Inner surface of ring 118 may be textured using an electrical discharge method. When coupled together the textured surfaces of bone screw 120 and ring 118 may interact with each other to provide additional resistance to movement in either a longitudinal direction or a direction perpendicular to the longitudinal axis.
- Textured surfaces may also be formed on any of the other surfaces of the plate system. The formation of textured surfaces preferably increases the frictional resistance between the various components of the plate system.
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Abstract
Description
- The present application is a continuation of U.S. patent application Ser. No. 11/148,112, filed Jun. 8, 2005, now allowed, which is a continuation of U.S. patent application Ser. No. 10/036,012, filed Dec. 26, 2001, abandoned, which is a continuation of U.S. patent application Ser. No. 09/089,027, filed Jun. 2, 1998, now U.S. Pat. No. 6,454,769, which is a continuation-in-part of U.S. patent application Ser. No. 08/905,823, filed Aug. 4, 1997, abandoned. All applications listed in this paragraph are fully incorporated by reference herein.
- The invention generally relates to bone plates. More particularly, the invention relates to a plate system having a mechanism for fixably attaching screws to a plate at a selected angle.
- The use of spinal fixation plates for correction of spinal deformities and for fusion of vertebrae is well known. Typically, a rigid plate is positioned to span bones or bone segments that need to be immobilized with respect to one another. Bone screws may be used to fasten the plate to the bones. Spinal plating systems are commonly used to correct problems in the lumbar and cervical portions of the spine, and are often installed posterior or anterior to the spine.
- Spinal plate fixation to the cervical portion of the spine can be risky because complications during surgery can cause injury to vital organs, such as the brain stem or the spinal cord. When attaching a fixation plate to a bone, bone screws are placed either bi-cortically or uni-cortically through the bone. Uni-cortical positioning of bone screws has grown in popularity because it is inherently safer to use. Bi-cortical screws are intended to breach the distal cortex for maximum anchorage into the bone; however, this may place distal soft tissue structures at risk. Screw placement is of particular importance in anterior cervical plate procedures because of the presence of the spinal cord opposite the distal cortex. Unfortunately, because of the soft texture of the bone marrow, the uni-cortical screws may undergo movement from their desired positions. In fact, the portion of the bone surrounding such screws may fail to maintain the screws in their proper positions, resulting in screw backout.
- Screw backout is particularly a problem when a pair of screws is implanted perpendicular to the plate. When the screws are placed in such a manner, screw backout can occur as a result of bone failure over a region that is the size of the outer diameter of the screw threads. To overcome this problem, a different configuration of the screws has been developed in which two screws are angled in converging or diverging directions within the bone. Advantageously, the amount of bone that is required to fail before screw backout can occur is increased by this configuration as compared to screws which are implanted in parallel. Although positioning screws angled toward or away from each other in a bone reduces the risk of a screw backout, such backouts can still happen. The result of a screw backout can be damaging to internal tissue structures such as the esophagus because a dislocated screw may penetrate the surface of such structures.
- In an attempt to reduce the risk of damage to internal tissue structures, some cervical screw plate systems have been devised in which uni-cortical screws are attached to the plate and not just the bone. It is intended that if screw backout occurs, the screw will remain connected to the plate so that it cannot easily contact internal tissue structures. One such system is described in U.S. Pat. No. 5,364,399 to Lowery et al. and is incorporated by reference as if fully set forth herein. This plating system includes a locking screw at each end of the plate which engages the heads of the bone screws to trap them within recesses of the plate. Since the locking screw is positioned over portions of the bone screws, it may extend above the upper surface of the plate. Thus, the locking screw may come into contact with internal tissue structures, such as the esophagus. Unfortunately, breaches to the esophageal wall may permit bacterial contamination of surrounding tissues, including the critical nerves in and around the spinal cord, which can be fatal.
- Another plating system that includes a screw to plate ring is the Aline™ Anterior Cervical Plating System sold by Smith & Nephew Richards Inc. in Memphis, Tenn. A description of this system can be found in the Aline™ Anterior Cervical Plating System Surgical Technique Manual available from Smith & Nephew Richards Inc. and is incorporated by reference as if fully set forth herein. The bone screws of this system have openings within each bone screw head for receiving a lock screw coaxially therein. Each bone screw may be inserted into a bone such that the head of the screw is positioned within a borehole of a plate placed adjacent to the bone. The head of each bone screw is slotted such that portions of the head may be deflected toward the plate during insertion of the lock screw within the opening of the bone screw. The bone screw may be thusly locked against the plate. However, inserting the lock screw into and fixably positioning the lock screw within the opening may be difficult since the lock screw is very small. The surgeon may be unable to hold onto the lock screw without dropping it. Unfortunately, once such a tiny screw falls into the surgical wound, it may be unretrievable.
- In accordance with the invention, a plating system is provided that largely eliminates or reduces the aforementioned disadvantages of conventional bone plating constructions. An embodiment of the invention relates to an implant system that includes a plate having end boreholes, midline boreholes, screws, and expandable/contractible rings.
- The end boreholes preferably extend from the upper surface to the lower surface of the plate. The end boreholes may be disposed in pairs at opposite ends of the plate. Each end borehole is preferably sized to receive at least a portion of a head of a screw therein. Each end borehole is also preferably spherical shaped to permit the screw to be “obliquely angulated” relative to the plate. Herein, “obliquely angulated” is taken to mean that the screw may be positioned at a wide range of angles relative to the plate, wherein the range of angles is preferably from 0 degrees to about 15 degrees from an imaginary axis that is perpendicular to the plate. Since the screws may be obliquely angulated with respect to the plate, the occurrence of screw backout from a bone may be significantly reduced.
- The expandable/contractible rings are preferably sized so that they may be positioned within each borehole between the plate and each of the screw heads. The inner surface of each ring is preferably shaped to mate with a screw head while the outer surface is preferably shaped to mate with the plate. The outer surface of each screw head may be tapered such that an upper portion of the head is larger than a lower portion of the head. Each ring may also have a gap that extends vertically through the ring to render it expandable/contractible. Thus, during insertion of a screw head within a bone, the ring preferably exerts a compressive force on the screw head to fixably connect the screw to the plate. Since the screw is attached to the plate, the screw may be prevented from contacting tissue structures even when screw backout occurs.
- The midline boreholes may be formed through the plate at various locations along a midline axis extending across the plate. The surface of the plate that surrounds each midline borehole is preferably tapered. Further, the heads of screws that may be positioned within the plates preferably have tapered outer surfaces that are shaped to mate with the tapered surface of the plate. Thus, when such a screw head is inserted into a midline borehole, the shape of the plate causes the screw to become fixably attached to the plate in a position that is substantially perpendicular to the plate. Since the midline boreholes may be used when inserting screws into bone graft, oblique angulation of screws positioned within the midline boreholes is not required.
- Prior to surgical implantation of a plating system disclosed herein, the expandable/contractible rings may be placed within the end boreholes of the plate. The plate may then be positioned adjacent to a portion of a bone. Holes may be drilled and tapped into a portion of the bone underlying each end borehole at the desired angle. Screws may be inserted through the end boreholes into the holes, and the heads of the screws may be positioned within the boreholes such that the rings surround at least a portion of the heads. Advantageously, during insertion of the screws, the rings preferably lock the screws in place without occupying regions outside of the boreholes. Further, since the rings are pre-positioned within the end boreholes, surgeons do not have to worry that they may drop the rings during insertion of the screws.
- Further advantages of the invention will become apparent to those skilled in the art with the benefit of the following detailed description of a preferred embodiments and upon reference to the accompanying drawings in which:
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FIG. 1 is a top plan view of one embodiment of a plating system; -
FIG. 2 is a cross-sectional view of the plating system along plane I ofFIG. 1 ; -
FIG. 3 is a cross-sectional view of a screw within an end borehole of a plate, wherein the screw is positioned according to one embodiment of the invention; -
FIG. 4 is a cross-sectional view of the screw, wherein the screw is positioned according to another embodiment; -
FIG. 5 is a cross-sectional view of the plating system along plane II ofFIG. 1 , wherein a pair of screws extend in diverging directions, according to one embodiment; -
FIG. 6 is a cross-sectional view of the plating system along plane II ofFIG. 1 , wherein the pair of screws extend in converging directions, according to another embodiment; -
FIG. 7 is a side view in partial cross-section of a fixation system that includes a screw, a ring, and a plate; -
FIG. 8 is a top view of an embodiment of the plate depicted inFIG. 7 ; -
FIG. 9 is a cross-sectional view of a tapered screwhead connected to a tapered ring through a threaded engagement; -
FIG. 10A is a cross-sectional view of a ring having a tapered inner surface; -
FIG. 10B is a cross-sectional view of a ring having a non-tapered inner surface; -
FIG. 11A is a cross-sectional view of a screw head having a tapered outer surface; -
FIG. 11B is a cross-sectional view of a screw head having a non-tapered outer surface; -
FIG. 12 depicts a side view of a ring having a plurality of slots; and -
FIG. 13 depicts a cross-sectional view of a screw head positioned within a ring. - While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. The drawings may not be to scale. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
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FIG. 1 depicts a top plan view of an embodiment of a plating system. In some embodiments, the plating system may be used to correct problems in the lumbar and cervical portions of the spine. For example, in some embodiments, the plating system may be implanted into the occiput bone which is located at the base of the skull. In some embodiments, the plating system may be preferably installed anterior to the spine. In some embodiments, the plating system preferably includes aplate 10 that may be placed adjacent to a portion of the spine. In some embodiments, the length ofplate 10 may be preferably chosen so that the plate may span between at least two vertebrae.Plate 10 preferably includes a pair ofend boreholes plate 10.End boreholes plate 10 such that they extend from an upper surface to a lower surface of the plate.End boreholes longitudinal midline axis 21 ofplate 10 by the same distance. -
End boreholes rings 18 that may be disposed within each of theend boreholes plate 10. Agap 19 preferably exists in each of therings 18 to enable the rings to contract or expand under pressure. The plating system may also includemidline boreholes 22 that extend vertically throughplate 10 at some point along themidline axis 21 ofplate 10. Preferably, one of themidline boreholes 22 is located at the middle ofplate 10 while the other midline boreholes are offset from the middle. The head ofscrew 24 may be positioned within one of themidline boreholes 22. This configuration ofmidline boreholes 22 may provide a surgeon with more options as to the location of ascrew 24 so that the screw may be placed in the most desirable location. Such ascrew 24 may be used to connectplate 10 to bone graft. Those elements that make up the plating system are preferably composed of steel, pure titanium, or of titanium alloys. Such materials are generally nontoxic, biocompatible, strong, and noncorrosive. Other materials which have these properties may also be used to form the elements. -
FIG. 2 illustrates a cross-sectional view of the plating system along plane I ofFIG. 1 . Particularly,FIG. 2 shows howscrew 24 is attached to plate 10 within one of themidline boreholes 22.Screw 24 preferably includes ahead 26 and ashank 28 that extends from the base ofhead 26. The inner surface of aportion 30 ofplate 10 that surroundsborehole 22 is preferably tapered, makingborehole 22 larger at the top than at the bottom. The outer surface ofhead 26 is also preferably tapered so thathead 26 may fit snugly withinborehole 22. In fact, the shape ofplate 10 andhead 26 preferably promotes attachment ofscrew 24 toplate 10. During implantation ofscrew 24 into bone graft, the shank of the screw is preferably screwed into a hole that has been formed in the bone graftunderlying borehole 22. Because the bottom portion ofborehole 22 is smaller than the upper portion of thescrew head 26,screw 24 may become locked into place withinborehole 22 once it has been screwed to a desired depth within the bone graft. In the example ofFIG. 2 , the plate is also shown as having a slight curvature to enhance its fixation to the bone. -
FIG. 3 depicts a cross-sectional view of an embodiment of one of theend boreholes Borehole 12 is preferably substantially spherical in shape so that ahead 32 ofscrew 20 may be rotated and moved to various positions withinborehole 12.Ring 18 is preferably sized to fit intoborehole 12 betweenplate 10 andhead 32. The outer surface ofring 18 is preferably curved to permit movement of the ring withinborehole 12. The combination ofring 18 andborehole 12 is like that of a ball and socket sincering 18 may be rotated both horizontally and vertically in clockwise and counterclockwise directions withinborehole 12.Ring 18 may also be rotated in directions that are angled away from the horizontal and vertical directions. InFIG. 3 ,ring 18 at least partially surroundshead 32 ofscrew 20 which is positioned withinborehole 12. Ashank 34 ofbone screw 20 preferably has threading 36 to allow the screw to be inserted into a bone when it is rotated in a clockwise direction.Head 32 preferably includes acavity 42 that extends from the top of the head to an inner portion of the head.Cavity 42 may be shaped to receive the end of any fastening device (e.g., a socket wrench) that may be used to turnscrew 20. -
Screw 20 may be simultaneously screwed into a bone and moved to its desired position. The inner surface ofring 18 and the outer surface ofhead 32 are preferably tapered and shaped to mate with each other. The bottom portion ofhead 32 is preferably smaller than the upper portion ofring 18. Asscrew 20 is inserted into a bone,head 32 preferably applies a radial force to ring 18, thereby causing the ring to expand within the borehole and increase the size ofgap 19. An interference fit may form betweenscrew head 32,ring 18, andplate 10 in which these elements fit so tightly together that they obstruct the movements of each other. The hoop stress ofring 18 onhead 32 may fixedly attachscrew 20 toplate 10. Also during insertion ofscrew 20,screw head 32 andring 18 may be positioned withinborehole 12 such that their left sides are at a higher elevation than their right sides.FIG. 3 shows thatpositioning screw head 32 in this configuration may result in acenterline 38 ofshank 34 being obliquely angulated with respect toplate 10. In fact,centerline 38 may be positioned where it is at an angle ranging from 0 to 15 degrees with respect to animaginary axis 40 which is perpendicular to plate 10.FIG. 3 demonstratesshank 34 ofscrew 20 being angled to the left ofimaginary axis 40 whileFIG. 4 demonstratesshank 34 being angled to the right ofimaginary axis 40.Screw 20 is not limited to these positions and can be angled in various directions, such as into the page. -
FIG. 5 andFIG. 6 depict different embodiments of the plating system along plane II ofFIG. 1 .FIG. 5 shows that screws 20 may be positioned withinend boreholes screws 20 depicted inFIG. 6 are shown as being positioned such that theirshanks 34 extend in diverging directions with respect to each other.Screws 20 may be moved to such positions as described above. Since bone screws 20 may be placed in diverging or converging directions throughend boreholes plate 10, screw backout may be greatly reduced. Further, the use ofrings 18 to fixedly attachscrews 20 to plate 10 may prevent damage to tissue structures by any screws that are able to escape from the bone.Rings 18 preferably do not extend above the upper surface ofplate 10, and thus advantageously do not contact tissue structures.Screw 20 may be placed in a uni-cortical position within the bone since the problem of screw backout is greatly reduced by the diverging or converging screw configurations. - According to one embodiment, the plating system of
FIG. 1 is prepared for surgical implantation by pre-positioning ofrings 18 withinend boreholes plate 10 is to be attached.Plate 10 may then be positioned adjacent to the bones. Each of thescrews 20 may be screwed into the bone holes while they are being positioned within their correspondingboreholes screws 20 at opposite ends 16 ofplate 10 may be positioned so that shanks of the screws are at oblique angles relative to the plate. The insertion force of eachscrew 20 into eachring 18 preferably causes the ring to exert a compressive force on the screw head, thereby fixably connecting the screws to plate 10. If necessary, screw 24 may be positioned in one of themidline boreholes 22 such thatscrew 24 attaches to plate 10. - Each of the features of the embodiments discussed above may be combined or used individually.
- The following additional embodiments may be used individually or in combination with any of the embodiments described above.
- A side view of an embodiment of a
plating system 100 is shown inFIG. 7 .Plating system 100 preferably includes abone screw 120, aring 118, and abone plate 110.Plate 110 may be used to stabilize a bony structure to facilitate a bone fusion. Thebone screw 120 may be used to connectplate 110 to a bone. A vertebra may be an example of a bone.Ring 118 preferably fixesbone screw 120 to plate 110 at a selected angle that depends upon the patient's anatomy.Bone screw 120,ring 118, andbone plate 110 are preferably capable of being used in similar applications asscrew 20,ring 18, andplate 10 as previously described inFIGS. 1-6 . - A top view of an embodiment of
plate 110 is shown inFIG. 8 .Plate 110 preferably includes one ormore boreholes 112 and may function similarly to plate 10 as described above. Each borehole 112 preferably has a curvate inner surface 113 (shown inFIG. 7 ) for engaging theouter surface 123 ofring 118. Theinner surface 113 preferably has the shape of a portion of an outer surface of a sphere.Borehole 112 has a width that is defined across theinner surface 113 of the borehole. The width of the borehole may vary in a direction axially through the borehole. InFIG. 7 , for example, the width of the boreholes preferably increases from atop surface 102 of the plate to about the middle of the plate. The width of the borehole inFIG. 7 then preferably decreases from about the middle of the plate to alower surface 104 of the plate such that the borehole has a maximum width near the midpoint betweenupper surface 102 andlower surface 104 of the plate. - The
outer surface 123 ofring 118 is preferably curvate for engaging theinner surface 113 of the borehole. The shape ofsurfaces ring 118 to swivel within the borehole. The swiveling action may be similar to that of a ball and socket joint. The ring preferably surrounds at least a portion of thehead 125 of a bone screw. Theenlarged end 127 disposed onhead 125 is optional and need not be included if it inhibits angulation of the bone screw. The swiveling of the ring within the borehole preferably enables theshank 135 of thebone screw 120 to rotate in a substantially conical range of motion. In this manner, the head is preferably movable within the borehole, and the shank is adjustably positionable at a plurality of angles substantially oblique to the plate. - In an embodiment, the
surfaces proximate borehole 112. The selected angle is preferably less than about 45 degrees, more preferably less than about 30 degrees, and more preferably still less than about 15 degrees. -
Ring 118 preferably has an outer width that is less than or about equal to the width ofborehole 112 at a location betweenupper surface 102 andlower surface 104 of the plate. In this manner,ring 118 may be positioned withinborehole 112 proximate the middle of the borehole to enable thebone screw 120 to extend substantially perpendicularly from thebone plate 110. Prior to surgery, rings 118 are preferably pre-positioned withinboreholes 112 ofplate 110. “Pre-positioned” is taken to mean that the rings are capable of swiveling within the borehole but are preferably inhibited from falling out of the borehole because of the reduced width of the borehole proximate the upper and lower surfaces. The width of the borehole proximate the upper and lower surfaces ofplate 110 is preferably less than or about equal to the outer width of the ring to inhibit the ring from falling out of the borehole. In this manner, the surgeon may use aplate 110 havingrings 118 pre-positioned within theboreholes 112 such that the rings will not fall into the surgical wound when platingsystem 100 is installed. - Alternately, the
rings 118 can be manually positioned within the boreholes during surgery.Ring 118 preferably includes one or more slots or gaps 19 (as shown inFIG. 1 ). The slot preferable allows the ring to be contracted or expanded. Contraction ofring 118 may allow the ring to be positioned within the borehole during surgery. Once positioned within the borehole the ring preferably expands and is inhibited from falling out of the borehole. - The
ring 118 is preferably capable of being swiveled such that one portion of the ring is adjacent toupper surface 102 ofplate 110 while another portion of the ring lies adjacent tolower surface 104 ofplate 110. The ring is preferably sufficiently thin to allow it to reside within the borehole without extending from the borehole beyond theupper surface 102 orlower surface 104 of the plate. Generally, it is preferred that the ring and screw head remain within theborehole 112 to minimize the profile width of platingsystem 100. In some embodiments, however, thebone screw 120 may be capable of being angulated relative to theplate 110 such that thering 118 extends from theborehole 112 beyond a surface of theplate 110. - The
head 125 is preferably screwed intoring 118 to create a fixed connection betweenbone screw 120 andplate 110 at a selected angle. In an embodiment depicted inFIG. 9 ,screw head 125 preferably contains head threading 121 on its outer surface that is complementary to ring threading 119 contained on the inner surface ofring 118. The head threading 121 preferably mates with the ring threading 119 to enhance the connection between thebone screw 120 and thering 118. Thehead 125 preferably has acavity 142 formed on its upper surface for receiving a driving tool such as a screw driver or an Allen wrench. - The outer surface of the
head 125 is preferably tapered so that screwing the head into the ring causes a change in width (e.g., expansion) of thering 118 to fix thebone screw 120 in position relative to theplate 110. The inner surface of thering 118 may also be tapered to substantially match the taper on the outer surface of the head. At least a portion of thehead 125 preferably has a width greater than the inner width of thering 118. As the screw head is screwed into thering 118, the ring preferably expands outwardly from its inner surface to accommodate the increasing width of thescrew head 125. Thering 118 may contain a slot or gap 19 (as shown inFIG. 1 ) as previously described to facilitate expansion of the ring against theinner surface 113 of theborehole 112. The slot is preferably widened as a result of force received fromhead 125. The force exerted byhead 125 against the inner surface ofring 118 preferably presses the ring into a fixed engagement againstinner surface 113 ofborehole 112. - Alternatively,
ring 118 may contain one or morepartial slots 145, as depicted inFIG. 12 . Eachpartial slot 145 preferably extends from a top 147 orbottom 149 ofring 118 into the ring. Partial slots may extend up to aboutmidpoint 148 ofring 118. In one embodiment, a plurality ofslots 145 may be oriented about the ring such that alternate slots extend from the top 147 and/or thebottom 149 ofring 118, as depicted inFIG. 12 . These alternating partial slots preferably facilitate the expansion and contraction ofring 118. - Cross-sectional views of two embodiments of
ring 118 are shown inFIGS. 10A and 10B . The ring may contain an inner surface that is tapered (as shown inFIG. 10A ) or that is substantially untapered (as shown inFIG. 10B ). Cross sectional views of two embodiments ofscrew 120 are shown inFIGS. 11A and 11B . Thehead 125 may have a substantially untapered outer surface (as shown inFIG. 11A ) or a substantially tapered outer surface (as shown inFIG. 11B ). It is to be understood that each of the heads of the screws depicted inFIGS. 11A and 11B may be used in combination with either of therings 118 depicted inFIG. 10A orFIG. 10B . It is also to be appreciated that the head of the screw may include an outer surface having a substantially untapered portion along with a tapered portion proximate its end for expanding thering 118. - As described herein, a “ring” is taken to mean any member capable of fitting between the
inner surface 113 borehole and thebone screw 120 to connect the bone screw to thebone plate 110. The ring is preferably substantially circular to surroundhead 125, but the ring may instead have a non-circular shape. The ring may be made of a number of biocompatible materials including metals, plastics, and composites. - It is believed that using a threading engagement between the
head 125 andring 118 increases the hoop stress exerted onhead 125, resulting in a stronger connection between thebone screw 120 and theplate 110. Moreover, if bone threading 136 becomes loose within a bone, screw backout fromplate 110 will tend to be resisted by the threaded connection between thescrew head 125 and thering 118. Thus, even if theshank 135 loosens within the bone, the head will tend to remain within the borehole of the plate so as not to protrude from the plate into surrounding body tissue. - As shown in
FIG. 9 , the head threading 121 on thehead 125 and the ring threading 119 on the inner surface ofring 118 is preferably substantially fine relative to the threading 136 onbone screw 120. That is, the pitch of the head threading 121 and ring threading 119 is preferably smaller than that onbone screw 120. The ring threading 119 preferably has multiple starts to facilitate connection of the bone screw and the ring. In one embodiment, the ring threading 119 has a double start such that the head can be started into the ring threading at either one of two orientations offset by 180 degrees. In another embodiment, the ring threading has a triple start such that the head can be started into the ring threading at any one of three orientations offset by 120 degrees. - The ring threading 119 and head threading 121 are preferably pitched to a substantially similar degree to the threading 136 on the
bone screw 120. Preferably, the ring threading 119 and head threading 121 are pitched such that thehead 125 causes expansion of thering 118 while thebone screw 120 is being inserted into the bone. - During the surgical procedure for attaching the
plate 110 to a bone, holes may be drilled and tapped into the bones to whichplate 110 is to be attached.Plate 110 may then be positioned adjacent to the bones. Aring 118 may be positioned within the borehole. Abone screw 120 may be positioned throughring 118 such that the head threading 121 ofhead 125 engages the ring threading 119 ofring 118. Thebone screw 120 may then be rotated to insert the bone screw into the bone. As the screw is rotated the head threads and ring threads preferably interact such that the head is moved into the ring. Movement of thehead 125 into thering 118 preferably causes the ring to expand such that the orientation of thebone screw 120 relative to theplate 110 is fixed. Preferably, the ring threading and head threading is pitched such the orientation of thebone screw 120 is fixed afterplate 110 engages the bone. - The bone screws may be used in pairs to prevent screw backout. The bone screws are preferably positioned into the bone in substantially converging or substantially diverging directions relative to one another.
- In an embodiment, a stronger connection between the
bone screw 120 and theplate 110 may be formed by texturing eitherouter surface 131 ofhead 125 ofbone screw 120 orinner surface 133 ofring 118, as depicted inFIG. 13 . Preferably, both surfaces are textured to inhibit movement of the bone screw with respect to the plate. During typical manufacturing procedures,outer surface 131 ofhead 125 andinner surface 133 ofring 118 may be formed as relatively smooth surfaces. While the friction between these smooth surfaces tends to be sufficient to maintainbone screw 120 in a fixed position with respect toplate 110, under stressful conditions the bone screw may be forced out ofring 118. By providing at least one textured surface, the coefficient of friction of the surface may be increased so that a large amount of force is needed to overcome the frictional connection betweenhead 125 ofbone screw 120 andring 118. This increase in friction betweenbone screw 120 andring 118 may further inhibit screw backout fromplate 110. - A number of textured surfaces may be used to increase the coefficient of friction between
ring 118 andhead 125 ofbone screw 120. In general, any process which transforms a relatively smooth surface into a roughened surface having an increased coefficient of friction may be used. Methods for forming a roughened surface include, but are not limited to: sanding, forming grooves within a surface, ball peening processes, electric discharge processes, and embedding of hard particles within a surface. - In one embodiment a plurality of grooves may be formed in
outer surface 131 ofhead 125 ofbone screw 120 orinner surface 133 ofring 118. Preferably, a plurality of grooves is formed in bothouter surface 131 andinner surface 133. While it is preferred that bothouter surface 131 and theinner surface 133 be textured, texturing of only one of the surfaces may be sufficient to attain additional resistance to movement. - In another embodiment, the frictional surface may be created by an electrical discharge process. An electrical discharge process is based on the principle of removal of portions of a metal surface by spark discharges. Typically a spark is generated between the surface to be treated and an electrode by creating potential differential between the tool and the electrode. The spark produced tends to remove a portion of the surface disposed between the electrode and the surface. Typically, the electrode is relatively small such that only small portions of the surface are removed. By moving the electrode about the surface numerous cavities may be formed within the surface. Typically these cavities are somewhat pyramidal in shape. Various patterns may be formed within the surface depending on how the electrode is positioned during the discharge. Electric discharge machines are well known in the art. A method for forming a frictional surface within a metal surface using an electric discharge process is described in U.S. Pat. No. 4,964,641 to Miesch et al. which is incorporated by reference as if set forth herein.
- A variety of patterns may be formed using an electric discharge machine. Preferably a diamond pattern or a waffle pattern is formed on either
inner surface 133 ofring 118 orouter surface 131 ofhead 125 ofbone screw 120. - In another embodiment,
inner surface 131 ofring 118 and/orouter surface 133 ofhead 125 ofbone screw 120 may be textured by the use of a shot peening process. A shot peening process for forming a textured surface is described in U.S. Pat. No. 5,526,664 to Vetter which is incorporated by reference as if set forth herein. In general, a shot peening process involves propelling a stream of hardened balls, typically made of steel, at a relatively high velocity at a surface. To create a pattern upon an area of the surface the stream is typically moved about the surface. The speed by which the stream is moved about the surface tends to determine the type of textured surface formed. - Preferably, the stream is moved such that a pattern resulting in a textured surface having ridges and valleys is formed on
inner surface 133 ofring 118 andouter surface 131 ofhead 125 ofbone screw 120. When the texturedinner surface 131 ofring 118 and thetextured head 125 ofbone screw 120 are coupled together the ridges and valleys may interact with each other to provide additional resistance to movement in either a longitudinal direction or a direction perpendicular to the longitudinal axis. - In another embodiment, the textured surface may be produced by embedding sharp hardened particles in the surface. A method for embedding sharp hardened particles in a metal surface is described in U.S. Pat. No. 4,768,787 to Shira which is incorporated by reference as if set forth herein. The method of Shira involves using a laser or other high energy source to heat the surface such that the surface melts in selected areas. Just before the molten area re-solidifies, a stream of abrasive particles is directed to the area. In this manner some of the particles tend to become embedded within the molten surface. The particles typically have a number of sharp edges that protrude from the surface after the particles have been embedded within the surface.
- Any of the above methods of texturing may be used in combination with another method. For example,
outer surface 131 ofhead 125 ofbone screw 120 may be textured using a pattern of grooves. Inner surface ofring 118, however, may be textured using an electrical discharge method. When coupled together the textured surfaces ofbone screw 120 andring 118 may interact with each other to provide additional resistance to movement in either a longitudinal direction or a direction perpendicular to the longitudinal axis. - Textured surfaces may also be formed on any of the other surfaces of the plate system. The formation of textured surfaces preferably increases the frictional resistance between the various components of the plate system.
- Further modifications and alternative embodiments of various aspects of the invention will be apparent to those skilled in the art in view of this description. Accordingly, this description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the general manner of carrying out the invention. It is to be understood that the forms of the invention shown and described herein are to be taken as the presently preferred embodiments. Elements and materials may be substituted for those illustrated and described herein, parts and processes may be reversed, and certain features of the invention may be utilized independently, all as would be apparent to one skilled in the art after having the benefit of this description of the invention. Changes may be made in the elements described herein without departing from the spirit and scope of the invention as described in the following claims.
Claims (20)
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US13/190,370 US20110282394A1 (en) | 1997-08-04 | 2011-07-25 | Bone Plate with Rings |
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US11/148,112 Expired - Fee Related US8007523B2 (en) | 1997-08-04 | 2005-06-08 | System and method for stabilizing the human spine with a bone plate |
US13/190,370 Abandoned US20110282394A1 (en) | 1997-08-04 | 2011-07-25 | Bone Plate with Rings |
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US11/148,112 Expired - Fee Related US8007523B2 (en) | 1997-08-04 | 2005-06-08 | System and method for stabilizing the human spine with a bone plate |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9451992B2 (en) * | 2010-12-01 | 2016-09-27 | Facet-Link Inc. | Variable angle bone screw fixation arrangement |
US9504584B1 (en) | 2011-01-28 | 2016-11-29 | Nuvasive, Inc. | Spinal fusion implant and related methods |
US11039865B2 (en) | 2018-03-02 | 2021-06-22 | Stryker European Operations Limited | Bone plates and associated screws |
Families Citing this family (370)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6454769B2 (en) * | 1997-08-04 | 2002-09-24 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
WO1999059492A1 (en) * | 1998-05-19 | 1999-11-25 | Synthes Ag Chur | Osteosynthetic implant with an embedded hinge joint |
FR2897259B1 (en) | 2006-02-15 | 2008-05-09 | Ldr Medical Soc Par Actions Si | INTERSOMATIC TRANSFORAMINAL CAGE WITH INTERBREBAL FUSION GRAFT AND CAGE IMPLANTATION INSTRUMENT |
DE19951760B4 (en) * | 1999-10-27 | 2005-06-09 | Sepitec Foundation | Implant for osteosynthesis |
US6331179B1 (en) * | 2000-01-06 | 2001-12-18 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
WO2001054601A1 (en) * | 2000-01-27 | 2001-08-02 | Synthes Ag Chur | Bone plate |
US20040153073A1 (en) | 2000-02-01 | 2004-08-05 | Hand Innovations, Inc. | Orthopedic fixation system including plate element with threaded holes having divergent axes |
US6767351B2 (en) * | 2000-02-01 | 2004-07-27 | Hand Innovations, Inc. | Fixation system with multidirectional stabilization pegs |
US7857838B2 (en) | 2003-03-27 | 2010-12-28 | Depuy Products, Inc. | Anatomical distal radius fracture fixation plate |
US6706046B2 (en) | 2000-02-01 | 2004-03-16 | Hand Innovations, Inc. | Intramedullary fixation device for metaphyseal long bone fractures and methods of using the same |
US7695502B2 (en) | 2000-02-01 | 2010-04-13 | Depuy Products, Inc. | Bone stabilization system including plate having fixed-angle holes together with unidirectional locking screws and surgeon-directed locking screws |
US6893444B2 (en) * | 2000-02-01 | 2005-05-17 | Hand Innovations, Llc | Bone fracture fixation systems with both multidirectional and unidirectional stabilization pegs |
US6235033B1 (en) * | 2000-04-19 | 2001-05-22 | Synthes (Usa) | Bone fixation assembly |
FR2808995B1 (en) | 2000-05-18 | 2003-02-21 | Aesculap Sa | INTERSOMATIC CAGE WITH UNIFIED GRAFT |
AU757023B2 (en) * | 2000-06-26 | 2003-01-30 | Stryker European Holdings I, Llc | Bone screw retaining system |
US6695845B2 (en) * | 2000-10-16 | 2004-02-24 | Robert A Dixon | Method and apparatus utilizing interference fit screw shanks for nonmetallic spinal stabilization |
US6740088B1 (en) | 2000-10-25 | 2004-05-25 | Sdgi Holdings, Inc. | Anterior lumbar plate and method |
US6656181B2 (en) * | 2000-11-22 | 2003-12-02 | Robert A Dixon | Method and device utilizing tapered screw shanks for spinal stabilization |
US7220262B1 (en) * | 2001-03-16 | 2007-05-22 | Sdgi Holdings, Inc. | Spinal fixation system and related methods |
FR2823095B1 (en) | 2001-04-06 | 2004-02-06 | Ldr Medical | RACHIS OSTEOSYNTHESIS DEVICE AND PLACEMENT METHOD |
US6599290B2 (en) * | 2001-04-17 | 2003-07-29 | Ebi, L.P. | Anterior cervical plating system and associated method |
US7717945B2 (en) | 2002-07-22 | 2010-05-18 | Acumed Llc | Orthopedic systems |
US20050240187A1 (en) | 2004-04-22 | 2005-10-27 | Huebner Randall J | Expanded fixation of bones |
FR2827156B1 (en) | 2001-07-13 | 2003-11-14 | Ldr Medical | VERTEBRAL CAGE DEVICE WITH MODULAR FASTENING |
US20060142765A9 (en) * | 2001-10-15 | 2006-06-29 | Dixon Robert A | Vertebral implant for bone fixation or interbody use |
FR2831048B1 (en) | 2001-10-18 | 2004-09-17 | Ldr Medical | PROGRESSIVE APPROACH OSTEOSYNTHESIS DEVICE AND PRE-ASSEMBLY PROCESS |
FR2831049B1 (en) | 2001-10-18 | 2004-08-13 | Ldr Medical | PLATE FOR OSTEOSYNTHESIS DEVICE AND PRE-ASSEMBLY METHOD |
US6679883B2 (en) | 2001-10-31 | 2004-01-20 | Ortho Development Corporation | Cervical plate for stabilizing the human spine |
US7766947B2 (en) | 2001-10-31 | 2010-08-03 | Ortho Development Corporation | Cervical plate for stabilizing the human spine |
FR2832308B1 (en) * | 2001-11-22 | 2004-09-24 | Guillaume Derouet | ORTHOPEDIC IMPLANT CONSTITUTES A SUPPORT STRUCTURE EQUIPPED WITH AT LEAST ONE ORIFICE FOR THE PASSING OF A FIXATION SCREW ASSOCIATED WITH A NUT |
FR2833151B1 (en) | 2001-12-12 | 2004-09-17 | Ldr Medical | BONE ANCHORING IMPLANT WITH POLYAXIAL HEAD |
US7070599B2 (en) | 2002-07-24 | 2006-07-04 | Paul Kamaljit S | Bone support assembly |
US6755833B1 (en) | 2001-12-14 | 2004-06-29 | Kamaljit S. Paul | Bone support assembly |
ES2250307T3 (en) * | 2001-12-24 | 2006-04-16 | Synthes Ag Chur | DEVICE FOR OSTEOSYNTHESIS. |
US6932820B2 (en) * | 2002-01-08 | 2005-08-23 | Said G. Osman | Uni-directional dynamic spinal fixation device |
US7303564B2 (en) | 2002-02-01 | 2007-12-04 | Spinal Concepts, Inc. | Spinal plate extender system and method |
US9101422B2 (en) * | 2002-02-01 | 2015-08-11 | Zimmer Spine, Inc. | Spinal plate system for stabilizing a portion of a spine |
US20040019353A1 (en) * | 2002-02-01 | 2004-01-29 | Freid James M. | Spinal plate system for stabilizing a portion of a spine |
US7077843B2 (en) * | 2002-06-24 | 2006-07-18 | Lanx, Llc | Cervical plate |
GB2392096A (en) * | 2002-06-29 | 2004-02-25 | Gareth Thomas | Locking screw |
US7001389B1 (en) | 2002-07-05 | 2006-02-21 | Navarro Richard R | Fixed and variable locking fixation assembly |
FR2842093B1 (en) * | 2002-07-12 | 2005-04-15 | Scient X | BONE ANCHORING DEVICE WITH SPHERICAL JOINT |
US7720522B2 (en) | 2003-02-25 | 2010-05-18 | Medtronic, Inc. | Fiducial marker devices, tools, and methods |
US7787934B2 (en) * | 2002-07-29 | 2010-08-31 | Medtronic, Inc. | Fiducial marker devices, tools, and methods |
US20040030237A1 (en) * | 2002-07-29 | 2004-02-12 | Lee David M. | Fiducial marker devices and methods |
US7250054B2 (en) * | 2002-08-28 | 2007-07-31 | Smith & Nephew, Inc. | Systems, methods, and apparatuses for clamping and reclamping an orthopedic surgical cable |
US7179260B2 (en) * | 2003-09-29 | 2007-02-20 | Smith & Nephew, Inc. | Bone plates and bone plate assemblies |
US20040111090A1 (en) * | 2002-10-03 | 2004-06-10 | The University Of North Carolina At Chapel Hill | Modification of percutaneous intrafocal plate system |
FR2845588B1 (en) * | 2002-10-09 | 2006-12-15 | Biotech Internat | SELF-LOCKING OSTEOSYNTHESIS DEVICE |
US6955677B2 (en) * | 2002-10-15 | 2005-10-18 | The University Of North Carolina At Chapel Hill | Multi-angular fastening apparatus and method for surgical bone screw/plate systems |
US7682392B2 (en) | 2002-10-30 | 2010-03-23 | Depuy Spine, Inc. | Regenerative implants for stabilizing the spine and devices for attachment of said implants |
US20040133278A1 (en) * | 2002-10-31 | 2004-07-08 | Marino James F. | Spinal disc implant |
AU2003295749B2 (en) | 2002-11-19 | 2007-12-06 | Acumed Llc | Adjustable bone plates |
US20050187551A1 (en) * | 2002-12-02 | 2005-08-25 | Orbay Jorge L. | Bone plate system with bone screws fixed by secondary compression |
US7811312B2 (en) * | 2002-12-04 | 2010-10-12 | Morphographics, Lc | Bone alignment implant and method of use |
US7425213B2 (en) * | 2002-12-10 | 2008-09-16 | Depuy Products, Inc. | Method of endosteal nailing |
WO2004069066A1 (en) * | 2003-02-03 | 2004-08-19 | Stryker Trauma Sa | Implantable orthopaedic device |
WO2004071276A2 (en) * | 2003-02-05 | 2004-08-26 | Pioneer Laboratories, Inc. | Bone plate system |
US7278997B1 (en) | 2003-03-07 | 2007-10-09 | Theken Spine, Llc | Instrument guide and implant holder |
ES2268644T3 (en) * | 2003-03-20 | 2007-03-16 | Stryker Trauma S.A. | BONE CONNECTION DEVICE. |
US20040193155A1 (en) * | 2003-03-27 | 2004-09-30 | Hand Innovations, Inc. | Fracture fixation plate with particular plate hole and fastener engagement and methods of using the same |
US7416553B2 (en) * | 2003-04-09 | 2008-08-26 | Depuy Acromed, Inc. | Drill guide and plate inserter |
US20040204712A1 (en) * | 2003-04-09 | 2004-10-14 | Eric Kolb | Bone fixation plates |
US20040210232A1 (en) * | 2003-04-09 | 2004-10-21 | Tushar Patel | Guide device and plate inserter |
US7935123B2 (en) * | 2003-04-09 | 2011-05-03 | Depuy Acromed, Inc. | Drill guide with alignment feature |
US7776047B2 (en) | 2003-04-09 | 2010-08-17 | Depuy Spine, Inc. | Guide for spinal tools, implants, and devices |
US7909829B2 (en) * | 2003-06-27 | 2011-03-22 | Depuy Spine, Inc. | Tissue retractor and drill guide |
US7481829B2 (en) * | 2003-04-21 | 2009-01-27 | Atlas Spine, Inc. | Bone fixation plate |
US8348982B2 (en) * | 2003-04-21 | 2013-01-08 | Atlas Spine, Inc. | Bone fixation plate |
US7169150B2 (en) * | 2003-04-25 | 2007-01-30 | Warsaw Orthopedic, Inc. | Non-metallic orthopedic plate |
US20050177164A1 (en) * | 2003-05-02 | 2005-08-11 | Carmen Walters | Pedicle screw devices, systems and methods having a preloaded set screw |
US7635379B2 (en) * | 2003-05-02 | 2009-12-22 | Applied Spine Technologies, Inc. | Pedicle screw assembly with bearing surfaces |
US7615068B2 (en) * | 2003-05-02 | 2009-11-10 | Applied Spine Technologies, Inc. | Mounting mechanisms for pedicle screws and related assemblies |
US20050182401A1 (en) * | 2003-05-02 | 2005-08-18 | Timm Jens P. | Systems and methods for spine stabilization including a dynamic junction |
DE20307774U1 (en) * | 2003-05-19 | 2004-09-23 | Metz-Stavenhagen, Peter, Dr.med. | Device for assembling a human or animal spinal column comprises a cervical vertebra screw having a head |
US7951176B2 (en) | 2003-05-30 | 2011-05-31 | Synthes Usa, Llc | Bone plate |
US7309340B2 (en) | 2003-06-20 | 2007-12-18 | Medicinelodge, Inc. | Method and apparatus for bone plating |
US7909848B2 (en) | 2003-06-27 | 2011-03-22 | Depuy Spine, Inc. | Tissue retractor and guide device |
US7753958B2 (en) | 2003-08-05 | 2010-07-13 | Gordon Charles R | Expandable intervertebral implant |
US7909869B2 (en) | 2003-08-05 | 2011-03-22 | Flexuspine, Inc. | Artificial spinal unit assemblies |
US7785351B2 (en) | 2003-08-05 | 2010-08-31 | Flexuspine, Inc. | Artificial functional spinal implant unit system and method for use |
US11259851B2 (en) | 2003-08-26 | 2022-03-01 | DePuy Synthes Products, Inc. | Bone plate |
BR0318428A (en) | 2003-08-26 | 2006-08-01 | Synthes Gmbh | bone plate |
US7635365B2 (en) | 2003-08-28 | 2009-12-22 | Ellis Thomas J | Bone plates |
FR2859095B1 (en) | 2003-09-01 | 2006-05-12 | Ldr Medical | BONE ANCHORING IMPLANT WITH A POLYAXIAL HEAD AND METHOD OF PLACING THE IMPLANT |
US7909860B2 (en) | 2003-09-03 | 2011-03-22 | Synthes Usa, Llc | Bone plate with captive clips |
US20050049595A1 (en) | 2003-09-03 | 2005-03-03 | Suh Sean S. | Track-plate carriage system |
US7857839B2 (en) * | 2003-09-03 | 2010-12-28 | Synthes Usa, Llc | Bone plate with captive clips |
KR101050877B1 (en) * | 2003-09-08 | 2011-07-20 | 신세스 게엠바하 | Bone fixation device |
US20050059970A1 (en) * | 2003-09-17 | 2005-03-17 | Eric Kolb | Bone fixation systems |
US8105367B2 (en) | 2003-09-29 | 2012-01-31 | Smith & Nephew, Inc. | Bone plate and bone plate assemblies including polyaxial fasteners |
US8372152B2 (en) | 2003-09-30 | 2013-02-12 | X-Spine Systems, Inc. | Spinal fusion system utilizing an implant plate having at least one integral lock and ratchet lock |
US8821553B2 (en) | 2003-09-30 | 2014-09-02 | X-Spine Systems, Inc. | Spinal fusion system utilizing an implant plate having at least one integral lock |
US7182782B2 (en) | 2003-09-30 | 2007-02-27 | X-Spine Systems, Inc. | Spinal fusion system and method for fusing spinal bones |
US9078706B2 (en) | 2003-09-30 | 2015-07-14 | X-Spine Systems, Inc. | Intervertebral fusion device utilizing multiple mobile uniaxial and bidirectional screw interface plates |
US7641701B2 (en) | 2003-09-30 | 2010-01-05 | X-Spine Systems, Inc. | Spinal fusion system and method for fusing spinal bones |
US8062367B2 (en) | 2003-09-30 | 2011-11-22 | X-Spine Systems, Inc. | Screw locking mechanism and method |
US7306605B2 (en) | 2003-10-02 | 2007-12-11 | Zimmer Spine, Inc. | Anterior cervical plate |
DE50311788D1 (en) * | 2003-10-24 | 2009-09-17 | Synthes Gmbh | DEVICE FOR BONE FIXATION |
US7591837B2 (en) * | 2003-10-28 | 2009-09-22 | Pyramid Spine, Llc | Facet triangle spinal fixation device and method of use |
DE50311436D1 (en) * | 2003-10-30 | 2009-05-28 | Synthes Gmbh | BONE PLATE |
US8182518B2 (en) * | 2003-12-22 | 2012-05-22 | Life Spine, Inc. | Static and dynamic cervical plates and cervical plate constructs |
US7635366B2 (en) * | 2003-12-29 | 2009-12-22 | Abdou M Samy | Plating system for bone fixation and method of implantation |
US7195633B2 (en) * | 2004-01-08 | 2007-03-27 | Robert J. Medoff | Fracture fixation system |
US7678137B2 (en) | 2004-01-13 | 2010-03-16 | Life Spine, Inc. | Pedicle screw constructs for spine fixation systems |
US7637928B2 (en) * | 2004-01-26 | 2009-12-29 | Synthes Usa, Llc | Variable angle locked bone fixation system |
US11291484B2 (en) | 2004-01-26 | 2022-04-05 | DePuy Synthes Products, Inc. | Highly-versatile variable-angle bone plate system |
US8574268B2 (en) | 2004-01-26 | 2013-11-05 | DePuy Synthes Product, LLC | Highly-versatile variable-angle bone plate system |
DE602005027806D1 (en) | 2004-02-04 | 2011-06-16 | Ldr Medical | DISC PROSTHESIS |
US8900277B2 (en) | 2004-02-26 | 2014-12-02 | Pioneer Surgical Technology, Inc. | Bone plate system |
US7311712B2 (en) * | 2004-02-26 | 2007-12-25 | Aesculap Implant Systems, Inc. | Polyaxial locking screw plate assembly |
US7740649B2 (en) | 2004-02-26 | 2010-06-22 | Pioneer Surgical Technology, Inc. | Bone plate system and methods |
US7862594B2 (en) * | 2004-02-27 | 2011-01-04 | Custom Spine, Inc. | Polyaxial pedicle screw assembly |
US7163539B2 (en) * | 2004-02-27 | 2007-01-16 | Custom Spine, Inc. | Biased angle polyaxial pedicle screw assembly |
US7819902B2 (en) * | 2004-02-27 | 2010-10-26 | Custom Spine, Inc. | Medialised rod pedicle screw assembly |
US7892257B2 (en) | 2004-02-27 | 2011-02-22 | Custom Spine, Inc. | Spring loaded, load sharing polyaxial pedicle screw assembly and method |
US7942913B2 (en) | 2004-04-08 | 2011-05-17 | Ebi, Llc | Bone fixation device |
US7963981B2 (en) * | 2004-04-19 | 2011-06-21 | Globus Medical, Inc. | Bone fixation plate |
US8236034B2 (en) | 2004-04-19 | 2012-08-07 | Globus Medical, Inc. | Bone fixation plate |
US7744635B2 (en) | 2004-06-09 | 2010-06-29 | Spinal Generations, Llc | Spinal fixation system |
US7938848B2 (en) | 2004-06-09 | 2011-05-10 | Life Spine, Inc. | Spinal fixation system |
US20050277937A1 (en) * | 2004-06-10 | 2005-12-15 | Leung Takkwong R | Bone plating system |
KR100858306B1 (en) * | 2004-06-14 | 2008-09-11 | 엠.에스. 아브두 | Orthopedic device |
US7727266B2 (en) | 2004-06-17 | 2010-06-01 | Warsaw Orthopedic, Inc. | Method and apparatus for retaining screws in a plate |
ZA200700451B (en) * | 2004-06-23 | 2008-10-29 | Applied Spine Technologies Inc | Systems and methods for spine stabilization |
US20060015103A1 (en) * | 2004-07-19 | 2006-01-19 | Shawn Burke | I-beam configuration bone plate |
US7854752B2 (en) | 2004-08-09 | 2010-12-21 | Theken Spine, Llc | System and method for dynamic skeletal stabilization |
US20060149265A1 (en) * | 2004-09-07 | 2006-07-06 | Anthony James | Minimal thickness bone plate locking mechanism |
US7799081B2 (en) | 2004-09-14 | 2010-09-21 | Aeolin, Llc | System and method for spinal fusion |
US8469966B2 (en) * | 2004-09-23 | 2013-06-25 | Smith & Nephew, Inc. | Systems, methods, and apparatuses for tensioning an orthopedic surgical cable |
US9615866B1 (en) | 2004-10-18 | 2017-04-11 | Nuvasive, Inc. | Surgical fixation system and related methods |
US8172855B2 (en) | 2004-11-24 | 2012-05-08 | Abdou M S | Devices and methods for inter-vertebral orthopedic device placement |
US7799062B2 (en) * | 2004-11-30 | 2010-09-21 | Stryker Trauma S.A. | Self-guiding threaded fastener |
US7935137B2 (en) | 2004-12-08 | 2011-05-03 | Depuy Spine, Inc. | Locking bone screw and spinal plate system |
US7931678B2 (en) * | 2004-12-08 | 2011-04-26 | Depuy Spine, Inc. | Hybrid spinal plates |
US7736380B2 (en) | 2004-12-21 | 2010-06-15 | Rhausler, Inc. | Cervical plate system |
US7527640B2 (en) | 2004-12-22 | 2009-05-05 | Ebi, Llc | Bone fixation system |
US8353939B2 (en) * | 2005-01-12 | 2013-01-15 | Warsaw Orthopedic, Inc. | Anchor retaining mechanisms for bone plates |
US7799061B2 (en) | 2005-01-28 | 2010-09-21 | Orthohelix Surgical Designs, Inc. | Orthopedic plate |
US8118846B2 (en) | 2005-01-28 | 2012-02-21 | Orthohelix Surgical Designs, Inc. | Orthopedic plates for use in clavicle repair and methods for their use |
US8118848B2 (en) | 2005-01-28 | 2012-02-21 | Orthohelix Surgical Designs, Inc. | Orthopedic plate for use in fibula repair |
US20060195085A1 (en) * | 2005-02-01 | 2006-08-31 | Inion Ltd. | System and method for stabilizing spine |
US20060195089A1 (en) * | 2005-02-03 | 2006-08-31 | Lehuec Jean-Charles | Spinal plating and intervertebral support systems and methods |
AU2006214001B2 (en) | 2005-02-18 | 2011-05-26 | Samy Abdou | Devices and methods for dynamic fixation of skeletal structure |
US20060229607A1 (en) * | 2005-03-16 | 2006-10-12 | Sdgi Holdings, Inc. | Systems, kits and methods for treatment of the spinal column using elongate support members |
AU2016277588B2 (en) * | 2005-03-17 | 2018-08-30 | Spinal Elements, Inc. | Implant for Treating a Spine |
US8100955B2 (en) * | 2005-03-17 | 2012-01-24 | Spinal Elements, Inc. | Orthopedic expansion fastener |
CA2602201C (en) * | 2005-03-24 | 2013-03-12 | Synthes Gmbh | Device for the cement augmentation of bone implants |
US7931681B2 (en) * | 2005-04-14 | 2011-04-26 | Warsaw Orthopedic, Inc. | Anti-backout mechanism for an implant fastener |
US7674296B2 (en) | 2005-04-21 | 2010-03-09 | Globus Medical, Inc. | Expandable vertebral prosthesis |
EP1876975A2 (en) | 2005-04-27 | 2008-01-16 | James Marino | Mono-planar pedilcle screw method, system, and kit |
US7452370B2 (en) * | 2005-04-29 | 2008-11-18 | Warsaw Orthopedic, Inc | Apparatus for retaining a bone anchor in a bone plate and method for use thereof |
US8070749B2 (en) | 2005-05-12 | 2011-12-06 | Stern Joseph D | Revisable anterior cervical plating system |
US20060271052A1 (en) * | 2005-05-12 | 2006-11-30 | Stern Joseph D | Revisable anterior cervical plating system |
US20060293668A1 (en) * | 2005-06-10 | 2006-12-28 | Sdgi Holdings, Inc. | Bone screw locking mechanism and method of use |
US8382807B2 (en) | 2005-07-25 | 2013-02-26 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
CA2616798C (en) | 2005-07-25 | 2014-01-28 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
US7905909B2 (en) | 2005-09-19 | 2011-03-15 | Depuy Products, Inc. | Bone stabilization system including multi-directional threaded fixation element |
US7955364B2 (en) | 2005-09-21 | 2011-06-07 | Ebi, Llc | Variable angle bone fixation assembly |
FR2891135B1 (en) | 2005-09-23 | 2008-09-12 | Ldr Medical Sarl | INTERVERTEBRAL DISC PROSTHESIS |
US8262713B2 (en) * | 2005-09-26 | 2012-09-11 | Depuy Spine, Inc. | Red light implant for treating osteoporosis |
US7465313B2 (en) * | 2005-09-26 | 2008-12-16 | Depuy Spine, Inc. | Red light implant for treating degenerative disc disease |
US20080243194A1 (en) * | 2005-09-26 | 2008-10-02 | The Regents Of The University Of California | Articulating instrumentation for dynamic spinal stabilization |
US7927359B2 (en) | 2005-10-06 | 2011-04-19 | Paradigm Spine, Llc | Polyaxial screw |
WO2007050796A2 (en) * | 2005-10-25 | 2007-05-03 | Anthem Orthopaedics, Llc | Bone fastening assembly and bushing and screw for use therewith |
US7740593B2 (en) * | 2005-12-09 | 2010-06-22 | Senorx, Inc | Guide block for biopsy or surgical devices |
US8100952B2 (en) * | 2005-12-22 | 2012-01-24 | Anthem Orthopaedics Llc | Drug delivering bone plate and method and targeting device for use therewith |
EP1971282A2 (en) | 2006-01-10 | 2008-09-24 | Life Spine, Inc. | Pedicle screw constructs and spinal rod attachment assemblies |
EP1984062B1 (en) * | 2006-02-13 | 2016-05-11 | RetroVascular, inc. | Recanalizing occluded vessels using controlled antegrade and retrograde tracking |
US9119651B2 (en) * | 2006-02-13 | 2015-09-01 | Retro Vascular, Inc. | Recanalizing occluded vessels using controlled antegrade and retrograde tracking |
AU2007217769A1 (en) * | 2006-02-21 | 2007-08-30 | Life Spine, Inc. | Structure for joining and retaining multi-part orthopedic implants |
US8147530B2 (en) * | 2006-03-07 | 2012-04-03 | Orthohelix Surgical Designs, Inc. | Variable axis locking mechanism for use in orthopedic implants |
US8118869B2 (en) * | 2006-03-08 | 2012-02-21 | Flexuspine, Inc. | Dynamic interbody device |
US20070233108A1 (en) * | 2006-03-15 | 2007-10-04 | Stalcup Gregory C | Spine fixation device |
SE531987C2 (en) * | 2006-03-17 | 2009-09-22 | Sven Olerud | Device for attaching and fixing a first element to a second element |
US8025681B2 (en) | 2006-03-29 | 2011-09-27 | Theken Spine, Llc | Dynamic motion spinal stabilization system |
US7951178B2 (en) * | 2006-04-03 | 2011-05-31 | Acumed Llc | Bone plates with hybrid apertures |
US8308811B2 (en) * | 2006-04-11 | 2012-11-13 | Zimmer, Inc. | Acetabular cup conversion ring |
US20070239283A1 (en) | 2006-04-11 | 2007-10-11 | Berger Richard A | Acetabular cup conversion ring |
US20070299442A1 (en) * | 2006-06-26 | 2007-12-27 | Sdgi Holdings, Inc. | Vertebral stabilizer |
US8388660B1 (en) | 2006-08-01 | 2013-03-05 | Samy Abdou | Devices and methods for superior fixation of orthopedic devices onto the vertebral column |
US8361130B2 (en) | 2006-10-06 | 2013-01-29 | Depuy Spine, Inc. | Bone screw fixation |
US8262710B2 (en) | 2006-10-24 | 2012-09-11 | Aesculap Implant Systems, Llc | Dynamic stabilization device for anterior lower lumbar vertebral fusion |
US8287575B2 (en) * | 2006-11-09 | 2012-10-16 | Stryker Trauma Gmbh | Polyaxial locking mechanism |
ES2373770T3 (en) * | 2006-11-22 | 2012-02-08 | Biedermann Motech Gmbh | BONE ANCHORAGE DEVICE. |
EP2124785A1 (en) * | 2006-12-19 | 2009-12-02 | Small Bone Innovations, Inc. | Locking fixation system and lag tool |
US9039768B2 (en) | 2006-12-22 | 2015-05-26 | Medos International Sarl | Composite vertebral spacers and instrument |
US7959677B2 (en) | 2007-01-19 | 2011-06-14 | Flexuspine, Inc. | Artificial functional spinal unit system and method for use |
US8142432B2 (en) * | 2007-02-05 | 2012-03-27 | Synthes Usa, Llc | Apparatus for repositioning portions of fractured bone and method of using same |
US20080221688A1 (en) * | 2007-03-09 | 2008-09-11 | Warsaw Orthopedic, Inc. | Method of Maintaining Fatigue Performance In A Bone-Engaging Implant |
US20080221681A1 (en) * | 2007-03-09 | 2008-09-11 | Warsaw Orthopedic, Inc. | Methods for Improving Fatigue Performance of Implants With Osteointegrating Coatings |
US8870931B2 (en) * | 2007-03-21 | 2014-10-28 | The University Of North Carolina At Chapel Hill | Anti-unscrewing and multi-angular fastening apparatuses and methods for surgical bone screw/plate systems |
US8764764B2 (en) | 2007-03-21 | 2014-07-01 | The University Of North Carolina At Chapel Hill | Surgical plate puller devices and methods for use with surgical bone screw/plate systems |
US8702762B2 (en) * | 2007-03-27 | 2014-04-22 | Depuy Spine, Inc. | Passive screw locking mechanism |
US20080255619A1 (en) * | 2007-04-10 | 2008-10-16 | Schneiderman Gary A | Posterior spinal fixation with colinear facet screw |
FR2915081B1 (en) * | 2007-04-17 | 2010-01-15 | D L P Sarl | IMPLANTABLE ORTHOPEDIC DEVICE COMPRISING A SUPPORT STRUCTURE PROVIDED WITH AT LEAST ONE ORIFICE ASSOCIATED WITH A NUT, FOR PASSING A FASTENING SCREW. |
EP2134278B1 (en) * | 2007-04-19 | 2012-08-22 | Stryker Trauma GmbH | Hip fracture device with barrel and end cap for load control |
ES2619649T3 (en) | 2007-04-19 | 2017-06-26 | Stryker European Holdings I, Llc | Hip fracture device with static locking mechanism that allows compression |
US8480715B2 (en) * | 2007-05-22 | 2013-07-09 | Zimmer Spine, Inc. | Spinal implant system and method |
US8216312B2 (en) * | 2007-05-31 | 2012-07-10 | Zimmer Spine, Inc. | Spinal interbody system and method |
US9072548B2 (en) * | 2007-06-07 | 2015-07-07 | Anthem Orthopaedics Llc | Spine repair assembly |
FR2916956B1 (en) | 2007-06-08 | 2012-12-14 | Ldr Medical | INTERSOMATIC CAGE, INTERVERTEBRAL PROSTHESIS, ANCHORING DEVICE AND IMPLANTATION INSTRUMENTATION |
US8361126B2 (en) | 2007-07-03 | 2013-01-29 | Pioneer Surgical Technology, Inc. | Bone plate system |
WO2009006604A1 (en) | 2007-07-03 | 2009-01-08 | Pioneer Surgical Technology, Inc. | Bone plate system |
US7963982B2 (en) | 2007-07-16 | 2011-06-21 | X-Spine Systems, Inc. | Implant plate screw locking system and screw having a locking member |
US20090069849A1 (en) * | 2007-09-10 | 2009-03-12 | Oh Younghoon | Dynamic screw system |
US8388663B2 (en) | 2007-09-13 | 2013-03-05 | Stryker Spine | Dynamic cervical plate |
US9561073B2 (en) | 2007-09-26 | 2017-02-07 | Retrovascular, Inc. | Energy facilitated composition delivery |
US9283034B2 (en) | 2007-09-26 | 2016-03-15 | Retrovascular, Inc. | Recanalization system using radiofrequency energy |
US8388666B2 (en) | 2007-09-27 | 2013-03-05 | Biomet C.V. | Locking screw system with relatively hard spiked polyaxial bushing |
US8267965B2 (en) | 2007-10-22 | 2012-09-18 | Flexuspine, Inc. | Spinal stabilization systems with dynamic interbody devices |
US8182514B2 (en) | 2007-10-22 | 2012-05-22 | Flexuspine, Inc. | Dampener system for a posterior stabilization system with a fixed length elongated member |
US8162994B2 (en) | 2007-10-22 | 2012-04-24 | Flexuspine, Inc. | Posterior stabilization system with isolated, dual dampener systems |
US8187330B2 (en) | 2007-10-22 | 2012-05-29 | Flexuspine, Inc. | Dampener system for a posterior stabilization system with a variable length elongated member |
US8157844B2 (en) | 2007-10-22 | 2012-04-17 | Flexuspine, Inc. | Dampener system for a posterior stabilization system with a variable length elongated member |
US8523912B2 (en) | 2007-10-22 | 2013-09-03 | Flexuspine, Inc. | Posterior stabilization systems with shared, dual dampener systems |
US20090105756A1 (en) | 2007-10-23 | 2009-04-23 | Marc Richelsoph | Spinal implant |
US8303633B2 (en) | 2007-12-13 | 2012-11-06 | K2M, Inc. | Dynamic anterior vertebral plate |
US8282675B2 (en) * | 2008-01-25 | 2012-10-09 | Depuy Spine, Inc. | Anti-backout mechanism |
US9345517B2 (en) | 2008-02-02 | 2016-05-24 | Globus Medical, Inc. | Pedicle screw having a removable rod coupling |
US20090210067A1 (en) * | 2008-02-20 | 2009-08-20 | Biomet Manufacturing Corp. | Acetabular Cup Fixation |
US20090210008A1 (en) * | 2008-02-20 | 2009-08-20 | Life Spine, Inc. | Modular spine plate with projection and socket interface |
US20090248087A1 (en) * | 2008-03-03 | 2009-10-01 | Orthohelix Surgical Designs, Inc. | Variable axis locking mechanism for use in orthopedic implants |
US20090248092A1 (en) | 2008-03-26 | 2009-10-01 | Jonathan Bellas | Posterior Intervertebral Disc Inserter and Expansion Techniques |
US8298266B2 (en) * | 2008-04-11 | 2012-10-30 | Warsaw Orthopedic, Inc. | Connectors for elongated surgical members and methods of use |
WO2009132302A1 (en) | 2008-04-25 | 2009-10-29 | Pioneer Surgical Technology, Inc. | Bone plate system |
US8425514B2 (en) * | 2008-06-25 | 2013-04-23 | Westmark Medical, Llc. | Spinal fixation device |
GB0813659D0 (en) | 2008-07-25 | 2008-09-03 | Smith & Nephew | Fracture putty |
WO2010025405A1 (en) * | 2008-08-29 | 2010-03-04 | Life Spine, Inc. | Single-sided dynamic spine plates |
WO2010027478A1 (en) * | 2008-09-08 | 2010-03-11 | Moed Berton R | Locking screw system |
US9603629B2 (en) | 2008-09-09 | 2017-03-28 | Intelligent Implant Systems Llc | Polyaxial screw assembly |
US8585743B2 (en) * | 2008-09-15 | 2013-11-19 | Biomet C.V. | Low profile screw and washer system for bone plating |
US20100094352A1 (en) * | 2008-10-10 | 2010-04-15 | Andrew Iott | Bone screw |
US8574272B2 (en) * | 2008-10-14 | 2013-11-05 | K2M, Inc. | Semi-constrained screw and spinal plate assembly |
US9301785B2 (en) * | 2008-10-21 | 2016-04-05 | K2M, Inc. | Spinal buttress plate |
WO2010047688A1 (en) * | 2008-10-21 | 2010-04-29 | Innovative Delta Technology Llc | Screw with locking mechanism and rigid/dynamic bone plate |
US20100137916A1 (en) * | 2008-12-03 | 2010-06-03 | Warsaw Orthopedic, Inc., An Indiana Corporation | Spinal plates for stabilizing segments |
US8721723B2 (en) | 2009-01-12 | 2014-05-13 | Globus Medical, Inc. | Expandable vertebral prosthesis |
EP2398413B1 (en) * | 2009-02-10 | 2014-05-21 | Synthes GmbH | Screw with variable diameter cannulation and driver |
US8366719B2 (en) | 2009-03-18 | 2013-02-05 | Integrated Spinal Concepts, Inc. | Image-guided minimal-step placement of screw into bone |
US20100249926A1 (en) * | 2009-03-24 | 2010-09-30 | X-Spine Systems, Inc. | Implant and a system and method for processing, desiging and manufacturing an improved orthopedic implant |
US9220547B2 (en) | 2009-03-27 | 2015-12-29 | Spinal Elements, Inc. | Flanged interbody fusion device |
US9526620B2 (en) | 2009-03-30 | 2016-12-27 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
FR2944692B1 (en) * | 2009-04-27 | 2011-04-15 | Medicrea International | MATERIAL OF VERTEBRAL OSTEOSYNTHESIS |
EP2248479B1 (en) * | 2009-05-06 | 2012-09-19 | Greatbatch Ltd. | Bone plate assembly |
WO2010132252A1 (en) * | 2009-05-12 | 2010-11-18 | Synthes Usa, Llc | Readjustable locking plate hole |
US8986353B2 (en) | 2009-07-09 | 2015-03-24 | Orthohelix Surgical Designs, Inc. | Osteotomy plate, plate driver and method for their use |
US9259255B2 (en) * | 2009-07-15 | 2016-02-16 | Orthohelix Surgical Designs, Inc. | Variable axis locking mechanism for use in orthopedic implants |
US8535354B2 (en) * | 2009-07-24 | 2013-09-17 | Spinal Usa, Inc. | Bone plate system and methods of using the same |
CA2768960C (en) | 2009-07-24 | 2016-12-13 | Spinal USA LLC | Bone plate screw-blocking systems and methods |
FR2949317B1 (en) * | 2009-09-02 | 2012-04-13 | Creaspine | IMPLANT ASSEMBLY FOR BONE FASTENING, PLATE AND SCREW TYPE |
EP2477566B1 (en) | 2009-09-14 | 2017-03-22 | Synthes GmbH | Variable angle compression plate |
US8617245B2 (en) | 2009-09-17 | 2013-12-31 | DePuy Synthes Products, LLC | Intervertebral implant having extendable bone fixation members |
US8496692B2 (en) * | 2009-09-21 | 2013-07-30 | Jmea Corporation | Locking securing member |
US20110082506A1 (en) * | 2009-10-02 | 2011-04-07 | Spinefrontier, Inc | Cervical plate assembly |
USD754857S1 (en) | 2009-10-14 | 2016-04-26 | Nuvasive, Inc. | Bone plate |
US8449585B2 (en) * | 2009-11-05 | 2013-05-28 | K2M, Inc. | Semi-constrained bone screw |
US8764806B2 (en) | 2009-12-07 | 2014-07-01 | Samy Abdou | Devices and methods for minimally invasive spinal stabilization and instrumentation |
US9393129B2 (en) | 2009-12-10 | 2016-07-19 | DePuy Synthes Products, Inc. | Bellows-like expandable interbody fusion cage |
FR2955247B1 (en) | 2010-01-21 | 2013-04-26 | Tornier Sa | GLENOIDAL COMPONENT OF SHOULDER PROSTHESIS |
US8568417B2 (en) | 2009-12-18 | 2013-10-29 | Charles River Engineering Solutions And Technologies, Llc | Articulating tool and methods of using |
US9833331B2 (en) | 2009-12-31 | 2017-12-05 | Ldr Medical | Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument |
US8486116B2 (en) * | 2010-01-08 | 2013-07-16 | Biomet Manufacturing Ring Corporation | Variable angle locking screw |
US20110218580A1 (en) | 2010-03-08 | 2011-09-08 | Stryker Trauma Sa | Bone fixation system with curved profile threads |
US9113970B2 (en) | 2010-03-10 | 2015-08-25 | Orthohelix Surgical Designs, Inc. | System for achieving selectable fixation in an orthopedic plate |
US20110245878A1 (en) * | 2010-04-05 | 2011-10-06 | Warsaw Orthopedic, Inc. | Retention mechanisms for rod locking set screws |
US9301850B2 (en) | 2010-04-12 | 2016-04-05 | Globus Medical, Inc. | Expandable vertebral implant |
US8870880B2 (en) | 2010-04-12 | 2014-10-28 | Globus Medical, Inc. | Angling inserter tool for expandable vertebral implant |
US8591585B2 (en) | 2010-04-12 | 2013-11-26 | Globus Medical, Inc. | Expandable vertebral implant |
US8282683B2 (en) | 2010-04-12 | 2012-10-09 | Globus Medical, Inc. | Expandable vertebral implant |
US8647369B2 (en) | 2010-05-19 | 2014-02-11 | Josef E. Gorek | Minimal profile anterior bracket for spinal fixation |
US20110307015A1 (en) * | 2010-06-10 | 2011-12-15 | Spartek Medical, Inc. | Adaptive spinal rod and methods for stabilization of the spine |
US8753396B1 (en) | 2010-09-13 | 2014-06-17 | Theken Spine, Llc | Intervertebral implant having back-out prevention feature |
US11529241B2 (en) | 2010-09-23 | 2022-12-20 | DePuy Synthes Products, Inc. | Fusion cage with in-line single piece fixation |
US20120078373A1 (en) | 2010-09-23 | 2012-03-29 | Thomas Gamache | Stand alone intervertebral fusion device |
US20120078372A1 (en) | 2010-09-23 | 2012-03-29 | Thomas Gamache | Novel implant inserter having a laterally-extending dovetail engagement feature |
KR101872045B1 (en) | 2010-09-30 | 2018-06-27 | 스피네벨딩 아게 | Anterior cervical plate |
US8562656B2 (en) | 2010-10-15 | 2013-10-22 | Warsaw Orrthopedic, Inc. | Retaining mechanism |
US8728129B2 (en) | 2011-01-07 | 2014-05-20 | Biomet Manufacturing, Llc | Variable angled locking screw |
US20120191138A1 (en) * | 2011-01-21 | 2012-07-26 | Kiester P Douglas | Use of flexible bushings to promote healing and stable fracture compression in orthopedic trauma plates |
FR2971144A1 (en) | 2011-02-08 | 2012-08-10 | Tornier Sa | GLENOIDAL IMPLANT FOR SHOULDER PROSTHESIS AND SURGICAL KIT |
US8672978B2 (en) | 2011-03-04 | 2014-03-18 | Zimmer Spine, Inc. | Transverse connector |
US8388687B2 (en) | 2011-03-25 | 2013-03-05 | Flexuspine, Inc. | Interbody device insertion systems and methods |
US9017412B2 (en) | 2011-04-29 | 2015-04-28 | Life Spine, Inc. | Spinal interbody implant with bone screw retention |
US8771324B2 (en) | 2011-05-27 | 2014-07-08 | Globus Medical, Inc. | Securing fasteners |
CN107252345B (en) | 2011-06-15 | 2020-12-15 | 史密夫和内修有限公司 | Variable angle locking implant |
US8668723B2 (en) | 2011-07-19 | 2014-03-11 | Neurostructures, Inc. | Anterior cervical plate |
US9248028B2 (en) | 2011-09-16 | 2016-02-02 | DePuy Synthes Products, Inc. | Removable, bone-securing cover plate for intervertebral fusion cage |
WO2013037387A1 (en) * | 2011-09-16 | 2013-03-21 | Stryker Trauma Gmbh | Polyaxial locking hole arrangement |
US8845728B1 (en) | 2011-09-23 | 2014-09-30 | Samy Abdou | Spinal fixation devices and methods of use |
WO2013049849A2 (en) | 2011-09-30 | 2013-04-04 | Acute Innovations, Llc, An Oregon Limited Liability Company | Bone fixation system with opposed mounting portions |
US11123117B1 (en) * | 2011-11-01 | 2021-09-21 | Nuvasive, Inc. | Surgical fixation system and related methods |
US9526627B2 (en) | 2011-11-17 | 2016-12-27 | Exactech, Inc. | Expandable interbody device system and method |
AU2012347604B2 (en) | 2011-12-09 | 2016-11-24 | Haddad, Steven | Orthopedic plate, orthopedic device, method of coupling bone segments, and method of assembling an orthopedic plate |
US8852278B2 (en) | 2011-12-22 | 2014-10-07 | DePuy Synthes Products, LLC | Lateral cage with integrated plate |
US9198769B2 (en) | 2011-12-23 | 2015-12-01 | Pioneer Surgical Technology, Inc. | Bone anchor assembly, bone plate system, and method |
WO2013113015A1 (en) | 2012-01-26 | 2013-08-01 | Acute Innovations Llc | Clip for rib stabilization |
US8790378B2 (en) | 2012-02-02 | 2014-07-29 | Biomet C.V. | Distal radius fracture fixation plate with integrated and adjustable volar ulnar facet support |
US9744046B2 (en) | 2012-02-07 | 2017-08-29 | Biomet Manufacturing, Llc | Locking screw assembly |
US20130226240A1 (en) | 2012-02-22 | 2013-08-29 | Samy Abdou | Spinous process fixation devices and methods of use |
FR2987256B1 (en) | 2012-02-24 | 2014-08-08 | Ldr Medical | ANCHORING DEVICE FOR INTERVERTEBRAL IMPLANT, INTERVERTEBRAL IMPLANT AND IMPLANTATION INSTRUMENTATION |
US9271836B2 (en) | 2012-03-06 | 2016-03-01 | DePuy Synthes Products, Inc. | Nubbed plate |
US10687860B2 (en) | 2012-04-24 | 2020-06-23 | Retrospine Pty Ltd | Segmental correction of lumbar lordosis |
US9039745B2 (en) * | 2012-04-26 | 2015-05-26 | Biomet Manufacturing, Llc | One-piece variable angle locking washer |
US20130345813A1 (en) | 2012-06-22 | 2013-12-26 | Sheryl Frank | Dual Anchor Lateral Vertebral Body Fixation Plates |
US10076364B2 (en) | 2012-06-29 | 2018-09-18 | K2M, Inc. | Minimal-profile anterior cervical plate and cage apparatus and method of using same |
US9198767B2 (en) | 2012-08-28 | 2015-12-01 | Samy Abdou | Devices and methods for spinal stabilization and instrumentation |
US9320617B2 (en) | 2012-10-22 | 2016-04-26 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
US10182921B2 (en) * | 2012-11-09 | 2019-01-22 | DePuy Synthes Products, Inc. | Interbody device with opening to allow packing graft and other biologics |
US10076369B2 (en) | 2013-01-16 | 2018-09-18 | Spinefrontier, Inc | Bone fastener for a spinal fixation assembly |
US9492288B2 (en) | 2013-02-20 | 2016-11-15 | Flexuspine, Inc. | Expandable fusion device for positioning between adjacent vertebral bodies |
US9433454B2 (en) | 2013-03-14 | 2016-09-06 | Amei Technologies, Inc. | Variable angle screws, plates and systems |
EP2789303A1 (en) * | 2013-04-12 | 2014-10-15 | Zimmer GmbH | Implantable insert sleeve |
US9943341B2 (en) | 2013-07-16 | 2018-04-17 | K2M, Llc | Retention plate member for a spinal plate system |
US9510880B2 (en) | 2013-08-13 | 2016-12-06 | Zimmer, Inc. | Polyaxial locking mechanism |
US9468479B2 (en) | 2013-09-06 | 2016-10-18 | Cardinal Health 247, Inc. | Bone plate |
US9044273B2 (en) | 2013-10-07 | 2015-06-02 | Intelligent Implant Systems, Llc | Polyaxial plate rod system and surgical procedure |
EP3089709B1 (en) | 2014-01-03 | 2020-09-09 | Tornier, Inc. | Reverse shoulder systems |
US9629664B2 (en) | 2014-01-20 | 2017-04-25 | Neurostructures, Inc. | Anterior cervical plate |
US9889014B2 (en) | 2014-02-06 | 2018-02-13 | Life Spine, Inc. | Implant for bone fixation |
US9877759B2 (en) | 2014-02-06 | 2018-01-30 | Life Spine, Inc. | Foot implant for bone fixation |
US9486250B2 (en) | 2014-02-20 | 2016-11-08 | Mastros Innovations, LLC. | Lateral plate |
US10517657B1 (en) * | 2014-04-14 | 2019-12-31 | Avanti Orthopaedics, LLC | Load sharing bone plate |
US10398565B2 (en) | 2014-04-24 | 2019-09-03 | Choice Spine, Llc | Limited profile intervertebral implant with incorporated fastening and locking mechanism |
US9517144B2 (en) | 2014-04-24 | 2016-12-13 | Exactech, Inc. | Limited profile intervertebral implant with incorporated fastening mechanism |
US9439773B2 (en) | 2014-05-07 | 2016-09-13 | Perumala Corporation | Enhanced artificial disk |
US9198768B1 (en) * | 2014-05-07 | 2015-12-01 | Perumala Corporation | Enhanced artificial disk |
PT3164093T (en) | 2014-07-03 | 2024-04-04 | Acumed Llc | Bone plate with movable joint |
US9730686B2 (en) | 2014-09-03 | 2017-08-15 | Biomet C.V. | System and method of soft tissue anchoring to metaphyseal bone plate |
US10213237B2 (en) | 2014-10-03 | 2019-02-26 | Stryker European Holdings I, Llc | Periprosthetic extension plate |
DE102014117175A1 (en) * | 2014-11-24 | 2016-05-25 | Aesculap Ag | Pedicle screw system and spine stabilization system |
AU2016200179B2 (en) | 2015-01-14 | 2020-09-17 | Stryker European Operations Holdings Llc | Spinal implant with porous and solid surfaces |
CA2917503A1 (en) | 2015-01-14 | 2016-07-14 | Stryker European Holdings I, Llc | Spinal implant with fluid delivery capabilities |
CA2972788A1 (en) | 2015-01-27 | 2016-08-04 | Spinal Elements, Inc. | Facet joint implant |
WO2016137983A1 (en) | 2015-02-24 | 2016-09-01 | X-Spine Systems, Inc. | Modular interspinous fixation system with threaded component |
US10722374B2 (en) | 2015-05-05 | 2020-07-28 | Tornier, Inc. | Convertible glenoid implant |
CA2930123A1 (en) | 2015-05-18 | 2016-11-18 | Stryker European Holdings I, Llc | Partially resorbable implants and methods |
US10993750B2 (en) | 2015-09-18 | 2021-05-04 | Smith & Nephew, Inc. | Bone plate |
US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
CN105213004A (en) * | 2015-10-15 | 2016-01-06 | 浙江嘉佑医疗器械有限公司 | Self-locking integral type anterior cervical plates |
US10251685B2 (en) | 2016-03-17 | 2019-04-09 | Stryker European Holdings I, Llc | Floating locking insert |
US9918750B2 (en) * | 2016-08-04 | 2018-03-20 | Osseus Fusion Systems, Llc | Method, system, and apparatus for temporary anterior cervical plate fixation |
US10820930B2 (en) | 2016-09-08 | 2020-11-03 | DePuy Synthes Products, Inc. | Variable angle bone plate |
US10624686B2 (en) | 2016-09-08 | 2020-04-21 | DePuy Synthes Products, Inc. | Variable angel bone plate |
US10905476B2 (en) | 2016-09-08 | 2021-02-02 | DePuy Synthes Products, Inc. | Variable angle bone plate |
US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10744000B1 (en) | 2016-10-25 | 2020-08-18 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10512547B2 (en) | 2017-05-04 | 2019-12-24 | Neurostructures, Inc. | Interbody spacer |
US10980641B2 (en) | 2017-05-04 | 2021-04-20 | Neurostructures, Inc. | Interbody spacer |
US10940016B2 (en) | 2017-07-05 | 2021-03-09 | Medos International Sarl | Expandable intervertebral fusion cage |
US10835388B2 (en) | 2017-09-20 | 2020-11-17 | Stryker European Operations Holdings Llc | Spinal implants |
CA3079099A1 (en) | 2017-10-16 | 2019-04-25 | Imascap Sas | Shoulder implants |
US11026727B2 (en) | 2018-03-20 | 2021-06-08 | DePuy Synthes Products, Inc. | Bone plate with form-fitting variable-angle locking hole |
US10772665B2 (en) | 2018-03-29 | 2020-09-15 | DePuy Synthes Products, Inc. | Locking structures for affixing bone anchors to a bone plate, and related systems and methods |
US11744619B2 (en) | 2018-04-06 | 2023-09-05 | K2M, Inc. | Faceted bone plate |
US11013541B2 (en) | 2018-04-30 | 2021-05-25 | DePuy Synthes Products, Inc. | Threaded locking structures for affixing bone anchors to a bone plate, and related systems and methods |
US11272967B2 (en) | 2018-07-11 | 2022-03-15 | Medline Industries, Lp | Bone plate system and method |
US11076892B2 (en) | 2018-08-03 | 2021-08-03 | Neurostructures, Inc. | Anterior cervical plate |
MX2021003210A (en) | 2018-09-20 | 2021-06-08 | Spinal Elements Inc | Spinal implant device. |
US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
US11071629B2 (en) | 2018-10-13 | 2021-07-27 | Neurostructures Inc. | Interbody spacer |
US10925651B2 (en) | 2018-12-21 | 2021-02-23 | DePuy Synthes Products, Inc. | Implant having locking holes with collection cavity for shavings |
USD967959S1 (en) | 2019-07-10 | 2022-10-25 | Medline Industries, Lp | Bone plate |
JP7478810B2 (en) | 2019-08-09 | 2024-05-07 | ハウメディカ オステオニクス コーポレイション | Shoulder surgery kit |
US11426154B2 (en) | 2019-09-11 | 2022-08-30 | Medline Industries, Lp | Orthopedic stabilization device, kit, and method |
US11877779B2 (en) | 2020-03-26 | 2024-01-23 | Xtant Medical Holdings, Inc. | Bone plate system |
US11382761B2 (en) | 2020-04-11 | 2022-07-12 | Neurostructures, Inc. | Expandable interbody spacer |
US11304817B2 (en) | 2020-06-05 | 2022-04-19 | Neurostructures, Inc. | Expandable interbody spacer |
US11911284B2 (en) | 2020-11-19 | 2024-02-27 | Spinal Elements, Inc. | Curved expandable interbody devices and deployment tools |
US11717419B2 (en) | 2020-12-10 | 2023-08-08 | Neurostructures, Inc. | Expandable interbody spacer |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5607428A (en) * | 1995-05-01 | 1997-03-04 | Lin; Kwan C. | Orthopedic fixation device having a double-threaded screw |
US5954722A (en) * | 1997-07-29 | 1999-09-21 | Depuy Acromed, Inc. | Polyaxial locking plate |
Family Cites Families (250)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059297A (en) * | 1976-03-08 | 1977-11-22 | Parker-Hannifin Corporation | Tube coupling |
US4492226A (en) | 1979-10-10 | 1985-01-08 | Vsesojuzny Nauchno-Issledovatelsky I Ispytatelny Institut Meditsinskoi Tekhniki | Device for uniting bone fragments |
CH645264A5 (en) * | 1980-05-28 | 1984-09-28 | Straumann Inst Ag | FITTING WITH A PLATE AND SCREWS THAT FIX IT TO A BONE. |
GB2083754B (en) | 1980-09-15 | 1984-04-26 | Rezaian Seyed Mahmoud | Spinal fixator |
DE3114136C2 (en) | 1981-04-08 | 1986-02-06 | Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen | Osteosynthesis plate |
DE3121272A1 (en) | 1981-05-29 | 1982-12-23 | Ulrich, Max Bernhard, 7900 Ulm | CORRECTIONAL IMPLANT FOR LUMBOSACRAL SPONDYLODESIS |
US4501269A (en) | 1981-12-11 | 1985-02-26 | Washington State University Research Foundation, Inc. | Process for fusing bone joints |
FR2545350B1 (en) | 1983-05-04 | 1985-08-23 | Cotrel Yves | DEVICE FOR SHRINKAGE OF THE RACHIS |
US4570618A (en) | 1983-11-23 | 1986-02-18 | Henry Ford Hospital | Intervertebral body wire stabilization |
GB2173104B (en) | 1984-02-28 | 1987-11-25 | Peter John Webb | Spinal fixation apparatus |
US4604995A (en) | 1984-03-30 | 1986-08-12 | Stephens David C | Spinal stabilizer |
US4643178A (en) | 1984-04-23 | 1987-02-17 | Fabco Medical Products, Inc. | Surgical wire and method for the use thereof |
US4743256A (en) | 1985-10-04 | 1988-05-10 | Brantigan John W | Surgical prosthetic implant facilitating vertebral interbody fusion and method |
DE3614101C1 (en) | 1986-04-25 | 1987-10-22 | Juergen Prof Dr Med Harms | Pedicle screw |
SU1424826A1 (en) | 1986-05-22 | 1988-09-23 | Белорусский научно-исследовательский институт травматологии и ортопедии | Fixative for spinal column |
CH672058A5 (en) | 1986-08-05 | 1989-10-31 | Synthes Ag | |
GB8620937D0 (en) | 1986-08-29 | 1986-10-08 | Shepperd J A N | Spinal implant |
US4805602A (en) | 1986-11-03 | 1989-02-21 | Danninger Medical Technology | Transpedicular screw and rod system |
JPH02500490A (en) | 1986-11-25 | 1990-02-22 | シンセス アクチエン ゲゼルシャフト | osteosynthesis device |
US4834757A (en) | 1987-01-22 | 1989-05-30 | Brantigan John W | Prosthetic implant |
DE3728686A1 (en) | 1987-08-27 | 1989-03-09 | Draenert Klaus | PREDICTABLE SURGICAL NETWORK |
DE3789876T2 (en) * | 1987-11-03 | 1994-11-03 | Synthes Ag | Bone plate with conical holes. |
US5057111A (en) * | 1987-11-04 | 1991-10-15 | Park Joon B | Non-stress-shielding bone fracture healing device |
US4887596A (en) | 1988-03-02 | 1989-12-19 | Synthes (U.S.A.) | Open backed pedicle screw |
CH683963A5 (en) | 1988-06-10 | 1994-06-30 | Synthes Ag | Internal fixation. |
US4950269A (en) | 1988-06-13 | 1990-08-21 | Acromed Corporation | Spinal column fixation device |
US5593409A (en) | 1988-06-13 | 1997-01-14 | Sofamor Danek Group, Inc. | Interbody spinal fusion implants |
US5484437A (en) | 1988-06-13 | 1996-01-16 | Michelson; Gary K. | Apparatus and method of inserting spinal implants |
FR2633177B1 (en) | 1988-06-24 | 1991-03-08 | Fabrication Materiel Orthopedi | IMPLANT FOR A SPINAL OSTEOSYNTHESIS DEVICE, ESPECIALLY IN TRAUMATOLOGY |
US5609635A (en) | 1988-06-28 | 1997-03-11 | Michelson; Gary K. | Lordotic interbody spinal fusion implants |
CA1333209C (en) | 1988-06-28 | 1994-11-29 | Gary Karlin Michelson | Artificial spinal fusion implants |
DE3831657A1 (en) | 1988-09-17 | 1990-03-22 | Boehringer Ingelheim Kg | DEVICE FOR THE OSTEOSYNTHESIS AND METHOD FOR THE PRODUCTION THEREOF |
US4961740B1 (en) | 1988-10-17 | 1997-01-14 | Surgical Dynamics Inc | V-thread fusion cage and method of fusing a bone joint |
GB2254394B (en) | 1988-12-21 | 1993-03-17 | Bristol Myers Squibb Co | Coupler assembly |
US5201734A (en) | 1988-12-21 | 1993-04-13 | Zimmer, Inc. | Spinal locking sleeve assembly |
US5147359A (en) | 1988-12-21 | 1992-09-15 | Zimmer, Inc. | Spinal hook body |
US5074864A (en) | 1988-12-21 | 1991-12-24 | Zimmer, Inc. | Clamp assembly for use in a spinal system |
US4966600A (en) | 1989-01-26 | 1990-10-30 | Songer Robert J | Surgical securance method |
US5116340A (en) | 1989-01-26 | 1992-05-26 | Songer Robert J | Surgical securance apparatus |
FR2642643B1 (en) | 1989-02-09 | 1991-05-10 | Vignaud Jean Louis | SPINAL INSTRUMENTATION FOR UNIVERSAL PEDICULAR FIXATION WITH MICROMETRIC ADJUSTMENT DIAPASON SCREW |
US5192321A (en) | 1989-03-29 | 1993-03-09 | Andrew Strokon | Apparatus and method for knee surgery |
US4987892A (en) | 1989-04-04 | 1991-01-29 | Krag Martin H | Spinal fixation device |
US5458638A (en) | 1989-07-06 | 1995-10-17 | Spine-Tech, Inc. | Non-threaded spinal implant |
US5344422A (en) | 1989-10-30 | 1994-09-06 | Synthes (U.S.A.) | Pedicular screw clamp |
US5055104A (en) | 1989-11-06 | 1991-10-08 | Surgical Dynamics, Inc. | Surgically implanting threaded fusion cages between adjacent low-back vertebrae by an anterior approach |
CA2035348C (en) | 1990-02-08 | 2000-05-16 | Jean-Louis Vignaud | Adjustable fastening device with spinal osteosynthesis rods |
US5290494A (en) | 1990-03-05 | 1994-03-01 | Board Of Regents, The University Of Texas System | Process of making a resorbable implantation device |
FR2659225B1 (en) | 1990-03-08 | 1995-09-08 | Sofamor | TRANSVERSE FIXING DEVICE FOR PROVIDING A RIGID CROSS-LINK BETWEEN TWO RODS OF A SPINAL OSTEOSYNTHESIS SYSTEM. |
US5360431A (en) | 1990-04-26 | 1994-11-01 | Cross Medical Products | Transpedicular screw system and method of use |
US5102412A (en) | 1990-06-19 | 1992-04-07 | Chaim Rogozinski | System for instrumentation of the spine in the treatment of spinal deformities |
US5127912A (en) | 1990-10-05 | 1992-07-07 | R. Charles Ray | Sacral implant system |
US5108446A (en) | 1990-11-26 | 1992-04-28 | Sulzer Brothers Limited | Hip joint prosthesis |
CS277533B6 (en) | 1990-12-29 | 1993-03-17 | Krajicek Milan | Fixed osteaosynthesis appliance |
US5171278A (en) | 1991-02-22 | 1992-12-15 | Madhavan Pisharodi | Middle expandable intervertebral disk implants |
US5123926A (en) | 1991-02-22 | 1992-06-23 | Madhavan Pisharodi | Artificial spinal prosthesis |
US5390683A (en) | 1991-02-22 | 1995-02-21 | Pisharodi; Madhavan | Spinal implantation methods utilizing a middle expandable implant |
EP0571555B1 (en) | 1991-02-22 | 1996-03-27 | PISHARODI, Madhavan | Middle expandable intervertebral disk implant |
DE4106823C1 (en) | 1991-03-04 | 1992-06-25 | Liebscher Kunststofftechnik, 8032 Graefelfing, De | |
US5176678A (en) | 1991-03-14 | 1993-01-05 | Tsou Paul M | Orthopaedic device with angularly adjustable anchor attachments to the vertebrae |
CA2063159C (en) | 1991-03-22 | 1999-06-15 | Thomas W. Sander | Orthopedic fastener |
US5192327A (en) | 1991-03-22 | 1993-03-09 | Brantigan John W | Surgical prosthetic implant for vertebrae |
US5563124A (en) | 1991-04-22 | 1996-10-08 | Intermedics Orthopedics/ Denver, Inc. | Osteogenic product and process |
DE69206693T2 (en) | 1991-05-24 | 1996-05-23 | Synthes Ag | Resorbable tendon and bone reinforcement device |
CA2070586C (en) | 1991-06-10 | 1995-11-28 | Barry Eppley | Prosthetic implant |
US5306307A (en) | 1991-07-22 | 1994-04-26 | Calcitek, Inc. | Spinal disk implant |
US5242448A (en) | 1991-08-01 | 1993-09-07 | Pettine Kenneth A | Bone probe |
US5290312A (en) | 1991-09-03 | 1994-03-01 | Alphatec | Artificial vertebral body |
US5603713A (en) | 1991-09-24 | 1997-02-18 | Aust; Gilbert M. | Anterior lumbar/cervical bicortical compression plate |
US5242445A (en) | 1991-12-05 | 1993-09-07 | Danek Medical, Inc. | Split eyebolt for spinal rod |
US5246442A (en) | 1991-12-31 | 1993-09-21 | Danek Medical, Inc. | Spinal hook |
US5263953A (en) | 1991-12-31 | 1993-11-23 | Spine-Tech, Inc. | Apparatus and system for fusing bone joints |
US5261909A (en) | 1992-02-18 | 1993-11-16 | Danek Medical, Inc. | Variable angle screw for spinal implant system |
US5360429A (en) | 1992-02-20 | 1994-11-01 | Jbs Societe Anonyme | Device for straightening, fixing, compressing, and elongating cervical vertebrae |
US5171279A (en) | 1992-03-17 | 1992-12-15 | Danek Medical | Method for subcutaneous suprafascial pedicular internal fixation |
FR2689750B1 (en) | 1992-04-10 | 1997-01-31 | Eurosurgical | BONE ANCHORING ELEMENT AND SPINAL OSTEOSYNTHESIS DEVICE INCORPORATING SUCH ELEMENTS. |
DE59206917D1 (en) | 1992-04-21 | 1996-09-19 | Sulzer Medizinaltechnik Ag | Artificial intervertebral disc body |
EP0639065A4 (en) | 1992-04-29 | 1995-10-25 | Danek Medical Inc | Positionable spinal fixation device. |
US5306309A (en) | 1992-05-04 | 1994-04-26 | Calcitek, Inc. | Spinal disk implant and implantation kit |
US5423825A (en) | 1992-06-10 | 1995-06-13 | Levine; Andrew S. | Spinal fusion instruments and methods |
US5318566A (en) | 1992-06-22 | 1994-06-07 | Danek Medical, Inc. | Sternotomy cable and method |
DE59208301D1 (en) * | 1992-06-25 | 1997-05-07 | Synthes Ag | OSTEOSYNTHETIC FIXATION DEVICE |
US5281222A (en) | 1992-06-30 | 1994-01-25 | Zimmer, Inc. | Spinal implant system |
US5312405A (en) | 1992-07-06 | 1994-05-17 | Zimmer, Inc. | Spinal rod coupler |
US5445642A (en) | 1992-09-01 | 1995-08-29 | Depuy Inc. | Method for installing a femoral component |
US5545165A (en) | 1992-10-09 | 1996-08-13 | Biedermann Motech Gmbh | Anchoring member |
US5348026A (en) | 1992-09-29 | 1994-09-20 | Smith & Nephew Richards Inc. | Osteoinductive bone screw |
ZA937672B (en) | 1992-10-22 | 1994-05-16 | Danek Medical Inc | Spinal rod transverse connector for supporting vertebral fixation elements |
FR2697742B1 (en) | 1992-11-06 | 1994-12-16 | Biomat | Osteosynthesis device for spinal consolidation. |
US5562735A (en) | 1992-11-09 | 1996-10-08 | Hospital For Joint Diseases | Spinal stabilization system and improved method |
US5702395A (en) | 1992-11-10 | 1997-12-30 | Sofamor S.N.C. | Spine osteosynthesis instrumentation for an anterior approach |
EP0599640B1 (en) | 1992-11-25 | 1998-08-26 | CODMAN & SHURTLEFF INC. | Osteosynthesis plate system |
WO1994013219A1 (en) | 1992-12-04 | 1994-06-23 | Frigg, Robert | Modular marrow nail |
US5312410A (en) | 1992-12-07 | 1994-05-17 | Danek Medical, Inc. | Surgical cable tensioner |
CA2103200A1 (en) | 1992-12-28 | 1994-06-29 | Robert S. Howland | Cervical spine rod fixation system |
US5527314A (en) | 1993-01-04 | 1996-06-18 | Danek Medical, Inc. | Spinal fixation system |
US5540703A (en) | 1993-01-06 | 1996-07-30 | Smith & Nephew Richards Inc. | Knotted cable attachment apparatus formed of braided polymeric fibers |
US5496318A (en) | 1993-01-08 | 1996-03-05 | Advanced Spine Fixation Systems, Inc. | Interspinous segmental spine fixation device |
US5676701A (en) | 1993-01-14 | 1997-10-14 | Smith & Nephew, Inc. | Low wear artificial spinal disc |
US5336223A (en) | 1993-02-04 | 1994-08-09 | Rogers Charles L | Telescoping spinal fixator |
US5364399A (en) | 1993-02-05 | 1994-11-15 | Danek Medical, Inc. | Anterior cervical plating system |
ES2141217T3 (en) | 1993-02-10 | 2000-03-16 | Sulzer Spine Tech Inc | SURGICAL TOOL SET FOR STABILIZATION OF THE SPINE. |
US5626579A (en) | 1993-02-12 | 1997-05-06 | The Cleveland Clinic Foundation | Bone transport and lengthening system |
US5713841A (en) | 1993-02-12 | 1998-02-03 | Graham; Richard A. | Inflatable cervical cervico-thoracic thoraco-lumbar and lumbar exercising device |
US5405391A (en) | 1993-02-16 | 1995-04-11 | Hednerson; Fraser C. | Fusion stabilization chamber |
US5282801A (en) | 1993-02-17 | 1994-02-01 | Danek Medical, Inc. | Top tightening clamp assembly for a spinal fixation system |
US5361766A (en) | 1993-02-17 | 1994-11-08 | David Nichols | Quick release bone probe and x-ray marker |
US5634925A (en) | 1993-02-19 | 1997-06-03 | Alphatec Manufacturing, Inc. | Apparatus and method for spinal fixation system |
FR2704134B1 (en) | 1993-04-20 | 1998-08-28 | Stryker Corp | Assembly piece for osteosynthesis device. |
EP0621020A1 (en) | 1993-04-21 | 1994-10-26 | SULZER Medizinaltechnik AG | Intervertebral prosthesis and method of implanting such a prosthesis |
ATE148328T1 (en) | 1993-05-18 | 1997-02-15 | Schaefer Micomed Gmbh | BONE SURGICAL HOLDING DEVICE |
DE9308276U1 (en) | 1993-06-02 | 1993-08-05 | Weber, Gerhard, 78727 Oberndorf, De | |
US5304179A (en) | 1993-06-17 | 1994-04-19 | Amei Technologies Inc. | System and method for installing a spinal fixation system at variable angles |
FR2707480B1 (en) | 1993-06-28 | 1995-10-20 | Bisserie Michel | Intervertebral disc prosthesis. |
DE4323956C1 (en) | 1993-07-19 | 1994-10-27 | Eska Medical Gmbh & Co | Fusion dowel for vertebrae |
US5423820A (en) | 1993-07-20 | 1995-06-13 | Danek Medical, Inc. | Surgical cable and crimp |
US5437670A (en) | 1993-08-19 | 1995-08-01 | Danek Medical, Inc. | Attachment plate for top-tightening clamp assembly in a spinal fixation system |
FR2709246B1 (en) | 1993-08-27 | 1995-09-29 | Martin Jean Raymond | Dynamic implanted spinal orthosis. |
FR2709248B1 (en) | 1993-08-27 | 1995-09-29 | Martin Jean Raymond | Ancillary equipment for placing a spinal instrumentation. |
US5395374A (en) | 1993-09-02 | 1995-03-07 | Danek Medical, Inc. | Orthopedic cabling method and apparatus |
US5417690A (en) | 1993-09-20 | 1995-05-23 | Codman & Shurtleff, Inc. | Surgical cable |
US5425772A (en) | 1993-09-20 | 1995-06-20 | Brantigan; John W. | Prosthetic implant for intervertebral spinal fusion |
CA2131141A1 (en) | 1993-09-24 | 1995-03-25 | James A. Boucher | Ligament graft protection apparatus and method |
CN1156255C (en) | 1993-10-01 | 2004-07-07 | 美商-艾克罗米德公司 | Spinal implant |
EP0647436A1 (en) | 1993-10-06 | 1995-04-12 | SMITH & NEPHEW RICHARDS, INC. | Bone section reattachment apparatus |
WO1995010238A1 (en) | 1993-10-08 | 1995-04-20 | Chaim Rogozinski | Spinal treatment apparatus and method including multi-directional attachment member |
WO1995010239A1 (en) | 1993-10-08 | 1995-04-20 | Chaim Rogozinski | Spinal treatment and long bone fixation apparatus and method |
US5397364A (en) | 1993-10-12 | 1995-03-14 | Danek Medical, Inc. | Anterior interbody fusion device |
US5466237A (en) | 1993-11-19 | 1995-11-14 | Cross Medical Products, Inc. | Variable locking stabilizer anchor seat and screw |
US5415658A (en) | 1993-12-14 | 1995-05-16 | Pioneer Laboratories, Inc. | Surgical cable loop connector |
US5628740A (en) | 1993-12-23 | 1997-05-13 | Mullane; Thomas S. | Articulating toggle bolt bone screw |
US5514180A (en) | 1994-01-14 | 1996-05-07 | Heggeness; Michael H. | Prosthetic intervertebral devices |
US5611800A (en) | 1994-02-15 | 1997-03-18 | Alphatec Manufacturing, Inc. | Spinal fixation system |
US5536270A (en) | 1994-02-24 | 1996-07-16 | Pioneer Laboratories, Inc. | Cable system for bone securance |
US5720747A (en) | 1994-03-11 | 1998-02-24 | Burke; Dennis W. | Apparatus for crimping a surgical wire |
FR2717068B1 (en) | 1994-03-14 | 1996-04-26 | Biomat | Vertebral interbody fusion cage. |
US5697977A (en) | 1994-03-18 | 1997-12-16 | Pisharodi; Madhavan | Method and apparatus for spondylolisthesis reduction |
US6093207A (en) | 1994-03-18 | 2000-07-25 | Pisharodi; Madhavan | Middle expanded, removable intervertebral disk stabilizer disk |
US5569253A (en) | 1994-03-29 | 1996-10-29 | Danek Medical, Inc. | Variable-angle surgical cable crimp assembly and method |
EP0760639B1 (en) | 1994-05-23 | 2000-04-12 | Sulzer Spine-Tech Inc. | Intervertebral fusion implant |
DE59408016D1 (en) | 1994-06-01 | 1999-04-29 | Synthes Ag | FORK PLATE |
US5536271A (en) | 1994-06-02 | 1996-07-16 | Depuy, Inc. | Patella reaming system |
SE9402130D0 (en) * | 1994-06-17 | 1994-06-17 | Sven Olerud | Device and method for plate fixation of legs |
DE4423257C2 (en) | 1994-07-02 | 2001-07-12 | Ulrich Heinrich | Implant to be inserted between the vertebral body of the spine as a placeholder |
DE4425357C2 (en) | 1994-07-18 | 1996-07-04 | Harms Juergen | Anchoring element |
US5507746A (en) | 1994-07-27 | 1996-04-16 | Lin; Chih-I | Holding and fixing mechanism for orthopedic surgery |
US5671695A (en) | 1994-07-28 | 1997-09-30 | Depuy Inc. | Replacement ligament graft passer and method |
AU3207895A (en) | 1994-08-23 | 1996-03-14 | Spine-Tech, Inc. | Cervical spine stabilization system |
US5681311A (en) | 1994-09-15 | 1997-10-28 | Smith & Nephew, Inc. | Osteosynthesis apparatus |
US5690633A (en) | 1994-09-23 | 1997-11-25 | Smith & Nephew Richards, Inc. | Orthopedic fracture fixation device |
US5601553A (en) | 1994-10-03 | 1997-02-11 | Synthes (U.S.A.) | Locking plate and bone screw |
DE69532856T2 (en) | 1994-10-17 | 2005-04-21 | Raymedica Inc | Spinal disc-GRAFT |
US5674296A (en) | 1994-11-14 | 1997-10-07 | Spinal Dynamics Corporation | Human spinal disc prosthesis |
AU4179296A (en) | 1994-11-16 | 1996-06-06 | Arnaud Andre Soubeiran | Device for mutually moving two bodies |
US5611801A (en) | 1994-11-29 | 1997-03-18 | Pioneer Laboratories, Inc. | Method and apparatus for bone fracture fixation |
SE505452C2 (en) | 1995-02-14 | 1997-09-01 | Robert J Medoff | An implantable fragment clip / support and method of making it |
US5716358A (en) | 1994-12-02 | 1998-02-10 | Johnson & Johnson Professional, Inc. | Directional bone fixation device |
AU4372596A (en) | 1994-12-09 | 1996-06-26 | Sofamor Danek Group, Inc. | Adjustable vertebral body replacement |
US5540696A (en) | 1995-01-06 | 1996-07-30 | Zimmer, Inc. | Instrumentation for use in orthopaedic surgery |
FR2729556B1 (en) | 1995-01-23 | 1998-10-16 | Sofamor | SPINAL OSTEOSYNTHESIS DEVICE WITH MEDIAN HOOK AND VERTEBRAL ANCHOR SUPPORT |
US5620443A (en) | 1995-01-25 | 1997-04-15 | Danek Medical, Inc. | Anterior screw-rod connector |
US5665122A (en) | 1995-01-31 | 1997-09-09 | Kambin; Parviz | Expandable intervertebral cage and surgical method |
DE19504867C1 (en) | 1995-02-14 | 1996-02-29 | Harms Juergen | Position retainer for spine |
US5643260A (en) | 1995-02-14 | 1997-07-01 | Smith & Nephew, Inc. | Orthopedic fixation system |
US5609596A (en) | 1995-03-09 | 1997-03-11 | Smith & Nephew Richards Inc. | Guide rod holder for manipulating surgical wires and pins |
AU2101495A (en) | 1995-03-13 | 1996-10-02 | Steven D. Gelbard | Spinal stabilization implant system |
US5632747A (en) | 1995-03-15 | 1997-05-27 | Osteotech, Inc. | Bone dowel cutter |
US5645084A (en) | 1995-06-07 | 1997-07-08 | Danek Medical, Inc. | Method for spinal fusion without decortication |
DE19511268A1 (en) | 1995-03-27 | 1996-10-02 | Johannes Franz Dr Med Hoenig | Osteosynthesis plate for bone stabilising e.g. post-tumour resection etc. |
CA2189744C (en) | 1995-03-27 | 2003-09-16 | Gilbert Talos | Bone plate |
US5782919A (en) | 1995-03-27 | 1998-07-21 | Sdgi Holdings, Inc. | Interbody fusion device and method for restoration of normal spinal anatomy |
US5688272A (en) | 1995-03-30 | 1997-11-18 | Danek Medical, Inc. | Top-tightening transverse connector for a spinal fixation system |
JP3501542B2 (en) * | 1995-04-07 | 2004-03-02 | 富久 腰野 | Medical hard tissue replacements and artificial joints |
US5716355A (en) | 1995-04-10 | 1998-02-10 | Sofamor Danek Group, Inc. | Transverse connection for spinal rods |
US5607424A (en) | 1995-04-10 | 1997-03-04 | Tropiano; Patrick | Domed cage |
FR2732887B1 (en) | 1995-04-12 | 1997-07-04 | Euros Sa | DEVICE FOR THE CROSS-LINKAGE OF A SPINAL HOLDING SYSTEM |
US5669911A (en) | 1995-04-13 | 1997-09-23 | Fastenetix, L.L.C. | Polyaxial pedicle screw |
US5520690A (en) | 1995-04-13 | 1996-05-28 | Errico; Joseph P. | Anterior spinal polyaxial locking screw plate assembly |
US5645549A (en) | 1995-04-24 | 1997-07-08 | Danek Medical, Inc. | Template for positioning interbody fusion devices |
FR2733413B1 (en) | 1995-04-27 | 1997-10-17 | Jbs Sa | CERVICAL CAGE DEVICE FOR PERFORMING INTERSOMATIC ARTHRODESIS |
US5613967A (en) | 1995-04-28 | 1997-03-25 | Acromed Corporation | Apparatus for maintaining bone portions in a desired spatial relationship |
US5630816A (en) | 1995-05-01 | 1997-05-20 | Kambin; Parviz | Double barrel spinal fixation system and method |
US5702391A (en) | 1995-05-16 | 1997-12-30 | Lin; Chih-I | Intervertebral fusion device |
JP3689146B2 (en) | 1995-05-30 | 2005-08-31 | ペンタックス株式会社 | Elements for screw fixation to bone |
US5569306A (en) | 1995-06-06 | 1996-10-29 | Thal; Raymond | Knotless suture anchor assembly |
US5683391A (en) | 1995-06-07 | 1997-11-04 | Danek Medical, Inc. | Anterior spinal instrumentation and method for implantation and revision |
US5702449A (en) | 1995-06-07 | 1997-12-30 | Danek Medical, Inc. | Reinforced porous spinal implants |
US5578034A (en) | 1995-06-07 | 1996-11-26 | Danek Medical, Inc. | Apparatus for preventing screw backout in a bone plate fixation system |
US5676665A (en) | 1995-06-23 | 1997-10-14 | Bryan; Donald W. | Spinal fixation apparatus and method |
FR2736535B3 (en) | 1995-07-10 | 1997-08-14 | Martin Jean Jacques | SPINAL OSTEOSYNTHESIS DEVICE |
US5609593A (en) | 1995-07-13 | 1997-03-11 | Fastenetix, Llc | Advanced polyaxial locking hook and coupling element device for use with top loading rod fixation devices |
US5578033A (en) | 1995-07-13 | 1996-11-26 | Fastenetix, L.L.C. | Advanced polyaxial locking hook and coupling element device for use with side loading rod fixation devices |
US5586984A (en) | 1995-07-13 | 1996-12-24 | Fastenetix, L.L.C. | Polyaxial locking screw and coupling element assembly for use with rod fixation apparatus |
US5554157A (en) | 1995-07-13 | 1996-09-10 | Fastenetix, L.L.C. | Rod securing polyaxial locking screw and coupling element assembly |
US5549608A (en) | 1995-07-13 | 1996-08-27 | Fastenetix, L.L.C. | Advanced polyaxial locking screw and coupling element device for use with rod fixation apparatus |
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 |
US5609594A (en) | 1995-07-13 | 1997-03-11 | Fastenetix Llc | Extending hook and polyaxial coupling element device for use with side loading road fixation devices |
US5575792A (en) | 1995-07-14 | 1996-11-19 | Fastenetix, L.L.C. | Extending hook and polyaxial coupling element device for use with top loading rod fixation devices |
US5607430A (en) | 1995-08-25 | 1997-03-04 | Biomet, Inc. | Bone stabilization implant having a bone plate portion with integral cable clamping means |
US5690842A (en) | 1995-09-12 | 1997-11-25 | Zimmer, Inc. | Orthopaedic wire with an enlarged end and method of forming the same |
US5645544A (en) | 1995-09-13 | 1997-07-08 | Danek Medical, Inc. | Variable angle extension rod |
US5643264A (en) | 1995-09-13 | 1997-07-01 | Danek Medical, Inc. | Iliac screw |
DE29515007U1 (en) | 1995-09-19 | 1995-12-07 | Pennig Dietmar | Osteosynthesis tools |
US5702392A (en) | 1995-09-25 | 1997-12-30 | Wu; Shing-Sheng | Coupling plate for spinal correction and a correction device of using the same |
US5649927A (en) | 1995-09-27 | 1997-07-22 | Pioneer Laboratories, Inc. | Cable crimp system |
US5683394A (en) | 1995-09-29 | 1997-11-04 | Advanced Spine Fixation Systems, Inc. | Fusion mass constrainer |
US5683392A (en) | 1995-10-17 | 1997-11-04 | Wright Medical Technology, Inc. | Multi-planar locking mechanism for bone fixation |
US5697929A (en) | 1995-10-18 | 1997-12-16 | Cross Medical Products, Inc. | Self-limiting set screw for use with spinal implant systems |
US5693053A (en) | 1995-10-19 | 1997-12-02 | Sdgi Holdings, Inc. | Variable angle and transitional linking member |
US5688274A (en) | 1995-10-23 | 1997-11-18 | Fastenetix Llc. | Spinal implant device having a single central rod and claw hooks |
US5688273A (en) | 1995-10-23 | 1997-11-18 | Fastenetix, Llc. | Spinal implant apparatus having a single central rod and plow hooks |
CA2162837C (en) | 1995-11-14 | 2002-01-22 | John Runciman | Bone plate shaping device |
US5690632A (en) | 1995-11-30 | 1997-11-25 | Schwartz; Paul Steven | Osteosynthesis screw fastener having angularly adjustable threads and methods of use therefor |
US5667507A (en) | 1995-12-04 | 1997-09-16 | Fastenetix, Llc | Compression locking variable length cross-link device for use with dual rod apparatus |
US5709684A (en) | 1995-12-04 | 1998-01-20 | Fastenetix, Llc | Advanced compression locking variable length cross-link device |
FR2742040B1 (en) | 1995-12-07 | 1998-01-23 | Groupe Lepine | ASSEMBLY DEVICE FOR EXTENDED PARTS OF OSTEOSYNTHESIS MATERIAL, ESPECIALLY SPINAL |
US5709683A (en) | 1995-12-19 | 1998-01-20 | Spine-Tech, Inc. | Interbody bone implant having conjoining stabilization features for bony fusion |
DE19548395A1 (en) * | 1995-12-22 | 1997-09-18 | Leibinger Gmbh | Osteosynthesis device |
US5669910A (en) | 1996-01-02 | 1997-09-23 | Pioneer Laboratories, Inc. | Crosslink for implantable rods |
US5766253A (en) | 1996-01-16 | 1998-06-16 | Surgical Dynamics, Inc. | Spinal fusion device |
US5722977A (en) | 1996-01-24 | 1998-03-03 | Danek Medical, Inc. | Method and means for anterior lumbar exact cut with quadrilateral osteotome and precision guide/spacer |
US5662653A (en) | 1996-02-22 | 1997-09-02 | Pioneer Laboratories, Inc. | Surgical rod-to-bone attachment |
US5653763A (en) | 1996-03-29 | 1997-08-05 | Fastenetix, L.L.C. | Intervertebral space shape conforming cage device |
US5668288A (en) | 1996-04-16 | 1997-09-16 | Depuy Orthopaedics, Inc. | Polyester ionomers for implant fabrication |
US5690629A (en) | 1996-04-24 | 1997-11-25 | Acromed Corporation | Apparatus for maintaining vertebrae of a spinal column in a desired spatial relationship |
US5667508A (en) | 1996-05-01 | 1997-09-16 | Fastenetix, Llc | Unitary locking cap for use with a pedicle screw |
US5702399A (en) | 1996-05-16 | 1997-12-30 | Pioneer Laboratories, Inc. | Surgical cable screw connector |
US5709685A (en) | 1996-05-21 | 1998-01-20 | Sdgi Holdings, Inc. | Positionable clip for provisionally capturing a component on a spinal rod |
US5713900A (en) | 1996-05-31 | 1998-02-03 | Acromed Corporation | Apparatus for retaining bone portions in a desired spatial relationship |
US5681312A (en) | 1996-05-31 | 1997-10-28 | Acromed Corporation | Spine construct with band clamp |
US5702455A (en) | 1996-07-03 | 1997-12-30 | Saggar; Rahul | Expandable prosthesis for spinal fusion |
US5707372A (en) | 1996-07-11 | 1998-01-13 | Third Millennium Engineering, Llc. | Multiple node variable length cross-link device |
US5716416A (en) | 1996-09-10 | 1998-02-10 | Lin; Chih-I | Artificial intervertebral disk and method for implanting the same |
US5690631A (en) | 1996-09-11 | 1997-11-25 | Walter Lorenz Surgical, Inc. | Multi-configurable plating system |
US5782832A (en) * | 1996-10-01 | 1998-07-21 | Surgical Dynamics, Inc. | Spinal fusion implant and method of insertion thereof |
US5720751A (en) | 1996-11-27 | 1998-02-24 | Jackson; Roger P. | Tools for use in seating spinal rods in open ended implants |
US5683393A (en) | 1996-12-23 | 1997-11-04 | Third Millennium Engineering, Llc | Bidirectional rod-hook locking mechanism |
US5707395A (en) * | 1997-01-16 | 1998-01-13 | Li Medical Technologies, Inc. | Surgical fastener and method and apparatus for ligament repair |
US5931838A (en) * | 1997-01-28 | 1999-08-03 | Vito; Raymond P. | Fixation assembly for orthopedic applications |
ATE371412T1 (en) | 1997-02-11 | 2007-09-15 | Warsaw Orthopedic Inc | PLATE AND SCREW FOR ANTERIOR CERVICAL SPINE |
US5713904A (en) | 1997-02-12 | 1998-02-03 | Third Millennium Engineering, Llc | Selectively expandable sacral fixation screw-sleeve device |
US6017345A (en) * | 1997-05-09 | 2000-01-25 | Spinal Innovations, L.L.C. | Spinal fixation plate |
ZA983955B (en) * | 1997-05-15 | 2001-08-13 | Sdgi Holdings Inc | Anterior cervical plating system. |
FR2766353B1 (en) * | 1997-07-28 | 1999-11-26 | Dimso Sa | IMPLANT, ESPECIALLY ANTERIOR CERVICAL PLATE |
US6030389A (en) * | 1997-08-04 | 2000-02-29 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
US6454769B2 (en) * | 1997-08-04 | 2002-09-24 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
US6402759B1 (en) * | 1998-12-11 | 2002-06-11 | Biohorizons Implant Systems, Inc. | Surgical fastener driver |
US6261291B1 (en) | 1999-07-08 | 2001-07-17 | David J. Talaber | Orthopedic implant assembly |
US6331179B1 (en) * | 2000-01-06 | 2001-12-18 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
US6235033B1 (en) * | 2000-04-19 | 2001-05-22 | Synthes (Usa) | Bone fixation assembly |
US6599290B2 (en) * | 2001-04-17 | 2003-07-29 | Ebi, L.P. | Anterior cervical plating system and associated method |
-
1998
- 1998-06-02 US US09/089,027 patent/US6454769B2/en not_active Expired - Lifetime
-
2001
- 2001-12-26 US US10/036,012 patent/US20020058939A1/en not_active Abandoned
-
2005
- 2005-06-08 US US11/148,112 patent/US8007523B2/en not_active Expired - Fee Related
-
2011
- 2011-07-25 US US13/190,370 patent/US20110282394A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5607428A (en) * | 1995-05-01 | 1997-03-04 | Lin; Kwan C. | Orthopedic fixation device having a double-threaded screw |
US5954722A (en) * | 1997-07-29 | 1999-09-21 | Depuy Acromed, Inc. | Polyaxial locking plate |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9451992B2 (en) * | 2010-12-01 | 2016-09-27 | Facet-Link Inc. | Variable angle bone screw fixation arrangement |
US9504584B1 (en) | 2011-01-28 | 2016-11-29 | Nuvasive, Inc. | Spinal fusion implant and related methods |
US9913730B1 (en) | 2011-01-28 | 2018-03-13 | Nuvasive, Inc. | Spinal fixation system and related methods |
US11039865B2 (en) | 2018-03-02 | 2021-06-22 | Stryker European Operations Limited | Bone plates and associated screws |
Also Published As
Publication number | Publication date |
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US6454769B2 (en) | 2002-09-24 |
US20010014807A1 (en) | 2001-08-16 |
US8007523B2 (en) | 2011-08-30 |
US20020058939A1 (en) | 2002-05-16 |
US20060149256A1 (en) | 2006-07-06 |
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Legal Events
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Owner name: SPINAL CONCEPTS, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WAGNER, ERIK J.;JONES, ROBERT;REEL/FRAME:026825/0230 Effective date: 19980902 |
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Owner name: ABBOTT SPINE INC., TEXAS Free format text: MERGER;ASSIGNOR:SPINAL CONCEPTS, INC.;REEL/FRAME:026833/0710 Effective date: 20030630 |
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