Source: http://www.google.com/patents/US7780664?dq=6,977,809&ei=-AObT5vAOoSgiQL_5qznDg
Timestamp: 2015-03-05 19:44:50
Document Index: 758454971

Matched Legal Cases: ['arts 290', 'art 292', 'art 290', 'art 292', 'art 290', 'art 294']

Patent US7780664 - Endosteal nail - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe system includes an elongate intramedullary nail which is rigidly fixed under compression to the endosteal surface of a bone with unicortical locking machine screws inserted through the bone and into a plurality of longitudinally displaced threaded holes in the nail. A jig is provided for drilling...http://www.google.com/patents/US7780664?utm_source=gb-gplus-sharePatent US7780664 - Endosteal nailAdvanced Patent SearchPublication numberUS7780664 B2Publication typeGrantApplication numberUS 10/985,594Publication dateAug 24, 2010Filing dateNov 10, 2004Priority dateDec 10, 2002Fee statusPaidAlso published asCA2587373A1, CA2587373C, DE602005025671D1, EP1809190A2, EP1809190A4, EP1809190B1, US7425213, US20050065520, US20050065528, WO2006053179A2, WO2006053179A3Publication number10985594, 985594, US 7780664 B2, US 7780664B2, US-B2-7780664, US7780664 B2, US7780664B2InventorsJorge L. OrbayOriginal AssigneeDepuy Products, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (107), Non-Patent Citations (25), Referenced by (3), Classifications (15), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetEndosteal nail
US 7780664 B2Abstract
The system includes an elongate intramedullary nail which is rigidly fixed under compression to the endosteal surface of a bone with unicortical locking machine screws inserted through the bone and into a plurality of longitudinally displaced threaded holes in the nail. A jig is provided for drilling holes through the bone in alignment with the screw holes in the nail. The nail and jig each include anti-rotation structure at which the nail and jig can be coupled together in a fixed alignment. A method is also provided for implanting an intramedullary nail on two sides of a bone fracture, and clamping the bone with sufficient force to immobolize the fracture by forcing the implant against an endosteal surface of the bone and applying a compressive force against the outer surface of the bone.
1. An intramedullary nail system for use with a jig, comprising:
an elongate nail including at least four threaded parallel screw holes in linear arrangement, said screw holes oriented normal to an endosteal surface of said nail, and a non-circular recess located at the upper portion of one of said threaded parallel screw holes of said linear arrangement, said recess for mating with a portion of the jig to lock the jig in a rotational orientation relative to said nail,
said nail having a longitudinal axis defining the length of said nail and a center along said longitudinal axis which divides said nail into first and second portions each having a length equal to one-half the length of said nail, said first and second portions extending in opposite directions from each other relative to said center, wherein said first portion has lateral reflection symmetry about said longitudinal axis, said second portion has lateral reflection symmetry about said longitudinal axis, and said first and second portions have longitudinal reflection symmetry with each other about said center.
2. A nail system according to claim 1, wherein:
said non-circular recess is square or rectangular.
3. A nail system according to claim 1, wherein:
an equal number of said threaded parallel screw holes are provided along each of said first and second portions.
4. A nail system according to claim 1, wherein:
said nail includes first and second ends which are tapered.
5. A nail system according to claim 1, further comprising:
a plurality of unicortical machine screws each having a head and a shaft configured to threadably engage in one of said threaded parallel screw holes,
wherein when said screws are insertable through bone and into said screw holes the bone is clamped between said head of said screws and said endosteal surface of said nail.
6. A nail system according to claim 5, wherein:
said head of each of said screws have an undersurface for contacting bone which define a surface area, and said shaft of each of said screws having a cross-sectional area defined by a cross-section through said shaft, wherein the ratio of said surface area of said undersurface said cross-sectional area is at least 1.5.
7. An orthopedic nail system according to claim 6, wherein:
the ratio of said surface area to said cross-sectional area is approximately √{square root over (3)}.
8. An orthopedic nail system according to claim 6, wherein:
the ratio of said surface area to said cross-sectional area is at least approximately √{square root over (3)}.
9. An orthopedic nail system according to claim 6, wherein:
said undersurface is substantially flat.
10. A nail system according to claim 1, wherein:
said endosteal surface includes at most one non-circular recess.
11. A nail system according to claim 1, wherein:
said endosteal surface includes at most two non-circular recesses.
12. A nail system according to claim 1, wherein:
said recess has a polygonal shape.
13. A nail system according to claim 1, wherein:
a plurality of said threaded screw holes of said linear arrangement each include a recess at an upper portion thereof.
14. An orthopedic nail system for use with a jig, comprising:
a) an elongate nail including at least four threaded screw holes in linear arrangement oriented normal to an endosteal surface of said nail, and a non-circular recess located at the upper portion of one of said threaded parallel screw holes of said linear arrangement, said recess for mating with a portion of the jig to lock the jig in a rotational orientation relative to said nail,
said nail having a longitudinal axis defining the length of said nail and a center along said longitudinal axis which divides said nail into first and second portions each having a length equal to one-half the length of said nail, said first and second portions extending in opposite directions from each other relative to said center, wherein said first portion has lateral reflection symmetry about said longitudinal axis, said second portion has lateral reflection symmetry about said longitudinal axis, and said first and second portions have longitudinal reflection symmetry with each other about said center; and
b) a plurality of unicortical machine screws each having a head and a shaft configured to threadably engage in one of said screw holes, said head having an undersurface for contacting bone, said undersurface defining a surface area, and cross-sectional area being defined by a cross-section through said shaft, wherein the ratio of said surface area of said undersurface of said head to said cross-sectional area through said shaft is at least 1.5.
15. An orthopedic nail system according to claim 14, wherein:
the ratio of said surface area of said undersurface of said head to said cross-sectional area through said shaft is approximately √{square root over (3)}.
16. An orthopedic nail system according to claim 15, wherein:
the ratio of said surface area of said undersurface of said head to said cross-sectional area through said shaft is at least approximately √{square root over (3)}.
17. An orthopedic nail system according to claim 15, wherein:
18. An orthopedic nail system according to claim 15, wherein:
19. An orthopedic nail system according to claim 15, wherein:
a plurality of said threaded screw holes of said linear arrangement each include a recess at an upper portion thereof. Description
This invention relates broadly to surgery. Particularly, this invention relates to orthopedic devices for fracture fixation. More particularly, this invention relates to intramedullary devices for fixation of diaphyseal fractures.
Less complicated fractures are often treated with casting or wires. However, such conservative treatment may not provide the stabilization and support necessary for desirable recovery. Yet, the operative procedure of plating is often too invasive for the relative non-severity of the fracture. Moreover, conventional plating can result in tendon irritation and skin necrosis, and may require extensive periosteal stripping in order to apply the plate on the bone surface.
In addition, there is no relatively minimally invasive procedure to treat fractures occurring along a diaphysis of a long bone that also provides the desired reduction and immobilization for such fractures. Furthermore, there is no relatively minimally invasive procedure to treat such fractures that provides the stability generally obtained by more invasive procedures, such as open reduction and internal fixation.
It is another object of the invention to provide a relatively minimally invasive treatment which provides stabilization and support to diaphyseal fractures.
In accord with these objects, which will be discussed in detail below, an intramedullary nail system is provided. The system includes an elongate nail, bone screws, and a jig system. The nail is designed to be rigidly fixed under compression to the endosteal surface of a bone with unicortical locking machine screws inserted through the bone and a plurality of longitudinally displaced threaded holes in the nail. The screw holes are preferably oriented normal to an endosteal surface of the nail. The screws each include a relatively large head to seat against the outer surface of the bone. As the screws are tightened the nail is forced against the endosteal surface of the bone to effect clamping of the bone between the screw head and the nail. The jig is provided for drilling holes through the bone in alignment with the screw holes in the nail. According to one aspect of the invention, the nail and jig each includes anti-rotation structure by which the nail and jig can be coupled together in a fixed alignment. In a preferred embodiment, such anti-rotation structure on the nail includes a non-circular recess in an endosteal surface of the nail. The recess may be provided at the longitudinal center of the nail, or one or more recesses may be aligned with respective screw holes. The jig has a first portion which extends through the bone and engages within the non-circular recess to lock the jig and the nail in alignment, and a second portion sized to extend over the screw holes of the nail and receive a drill guide to guide a drill to drill holes into bone into alignment with the screw holes therebelow.
In accord with one method of the invention, the nail is introduced into the medullary canal on one side of the fracture, and the nail is then repositioned so that the nail is centered relative to the fracture site and extends substantially equally on each side of the fracture. A hole is drilled through bone and a first screw hole of the nail. The jig is attached at one of the screw holes so that it will not rotate relative to the nail. A drill guide is inserted through respective alignment holes in the jig and holes are drilled through the bone in alignment with screw holes in the nail. The cortical locking screws are then inserted through the drilled holes to clamp the bone between the screw heads and the nail. The jig is removed, and a screw is inserted at the prior location of the jig.
According to another embodiment, the nail includes a central threaded screw hole and non-circular recess at the endosteal surface of the nail in alignment with the central screw hole. A notch is created at the fracture site. The nail is inserted into the medullary canal and the jig is attached to the central screw hole, with the notch defining a space in the bone for the first portion of the jig. The jig is then used to drill holes in the bone in alignment with the screw holes. The screws are then inserted through the bone and nail and tightened to cause the bone to be clamped between the head of the screws and the nail, and the jig is removed from the nail.
The result of the nail and methodology is that a smaller incision can be made, and the operation is relatively minimally invasive with only minor stripping of the periosteal tissue. Furthermore, the nail is easy to insert, being self-guiding into alignment within the medullary canal. The resulting fixation is very stable due to the clamping of the fractured bone between the large screw heads and the nail. Moreover, the large screw heads distribute the stress on the bone over a relatively large surface area on the outer surface of the cortical bone.
FIG. 1 is a top or endosteal surface view of an intramedullary nail according to the invention;
FIG. 2 is a longitudinal section illustrating a method of implanting the nail of FIG. 1 in a fractured bone;
FIG. 3 is a longitudinal section showing the nail of FIG. 1 implanted in a fractured bone;
FIG. 4 is a side elevation view of a unicortical machine screw for use in the orthopedic nail system of the invention;
FIG. 5 is a longitudinal section view of the unicortical machine screw of FIG. 4;
FIG. 6 is a top or endosteal surface view of another embodiment of an intramedullary nail according to the invention;
FIG. 7 is a longitudinal section illustrating a method of implanting the nail of FIG. 6 in a fractured bone;
FIG. 8 is a longitudinal section showing the nail of FIG. 6 implanted in a fractured bone;
FIG. 9 is a partial section view of a third embodiment of the nail shown with a jig attached at a first location; and
FIG. 10 is a partial section view of the nail of FIG. 10 shown with the jig attached at a second location.
Turning now to FIGS. 1 through 3, an endosteal nail system according to the invention is shown. The nail 10 of the system includes a plurality of longitudinally displaced screw holes 12 threaded with machine threads. The screw holes are preferably oriented normal to an endosteal surface 14 of the nail. The nail 10 is designed to be rigidly fixed under compression to the endosteal surface 16 of a bone 18 with unicortical locking machine screws 20, discussed below, inserted through the bone 18 and threaded screw holes 12. Over at least one, but preferably two screw holes, a non-circular recess 22 is provided. Such screw holes 12 a, 12 b provided with the non-circular recess 22 are referred to as �jig holes�, and preferably where two are provided, they are equidistant from the longitudinal center 19 of the nail. The non-circular recess 22 at the jig hole 12 a, 12 b is square in shape, but may be triangular, hexagonal, star, oval, etc. The ends 23 of the nail 10 are preferably tapered. As seen in FIG. 1, the nail has a longitudinal axis A that defines the dimension of the length of the nail. The center 19 divides the length of the nail into first and second portions 11 a, 11 b each having their own length equal to one-half the length of the nail. The first and second portions 11 a, 11 b extend in opposite directions from each other relative to the center 19. As shown, the first and second portions 11 a, 11 b each have lateral reflective symmetry about the longitudinal axis A, and the first and second portions have longitudinal reflective symmetry with each other about the center 19. The nail 10 preferably has a circular cross-section, but may be have a square, flattened, oval or other cross-sectional shape, or be varied in cross-sectional shape along its length. The nail is preferably titanium alloy or stainless steel in construction.
Referring to FIG. 3, a plurality of locking screws 20 are provided for insertion into the screw holes 12. The screws 20 each include a shaft 24 provided with machine threads to threadably engage the screw holes 12 in the nail and a relatively large head 26 to seat against the outer surface 27 of the bone 18 to effect clamping of the bone between the screw head 26 and the nail 10, as described further below.
More particularly, referring to FIGS. 4 and 5, the screws 20 are preferably unicortical in design. That is, the shaft 24 of each screw 20 is selected in length (for the particular bone being treated) to extend through a near cortex of the bone and to thread into the screw holes 12 of the nail 10, but preferably not to extend beyond the far cortex of the bone. The shaft 24 includes a tip portion 70, a body portion 72, and clearance portion 74. The body portion 72 includes threads 76 adapted to engage in the screw holes 12. In the clearance portion 74, the shaft is relatively smooth, but has a shallow thread channel 78 extending therein which is continuous with and the same pitch as threads 76. The thread channel 78 is sized to accommodate the threads in screw holes 12. The tip portion 70 is preferably also relatively smooth, but slightly smaller in diameter than the clearance portion 74; e.g., a 0.098 inch diameter at the clearance portion 74 versus a 0.095 inch diameter at the tip portion 70. In addition, the tip portion 70 preferably also has a shallow thread channel 80 extending therein which is continuous with and the same pitch as threads 76. The tip portion 70 preferably also has a relatively blunt end 82, as the screw is not intended to tap into bone. In addition, the head 26 of each screw 20 has a substantially flat (planar) undersurface 84 adapted to contact bone and distribute load and stress, and a driver receiving slot 86. In order to distribute load and stress when the bone is under compression, as described hereinafter, the undersurface 84 defines a surface area which is preferably at least 1.5 times larger than an area defined by a cross-section through the shaft 24. Most preferably, the undersurface 84 surface area is approximately √{square root over (3)} times larger than an area defined by a cross-section through the shaft 24, but may be even larger to distribute the force over a larger surface area. This preferred ratio provides a suitably large surface area of the head 26 for compression relative to a desirable size of the shaft 24 for stable threaded engagement in the holes 12 in the nail 10.
A jig 30 is provided for drilling holes through the bone 18 in alignment with the screw holes 12 in the nail 10 for insertion of the unicortical screws 20. The jig 30 has a first portion 32 which extends through the bone 18 and includes an end which corresponds in shape and size to engage within said non-circular recess 22. A thumb screw 34 is inserted through the jig 30 into the first portion 32 to lock the jig 30 and nail 10 together at the recess 22 such that the jig and nail cannot rotate relative to each other. The jig 30 includes a second portion 36 which extends over the screw holes 12 of the nail 10 and includes openings 38 that can receive a drill guide 40 to guide a drill 42 to drill holes into the bone 18 into alignment with the screw holes 12 therebelow.
Referring back to FIGS. 2 and 3, in accord with a first method of the invention, the nail 10 is introduced into a medullary canal 44 through a bone fracture 46. For some bones, for example the clavicle, an awl or drill may need to be used to open up the medullary canal prior to nail introduction. The nail 10 is introduced into the medullary canal 44 on one side of the fracture 46, and then repositioned so that the longitudinal center 19 of the nail is at or adjacent the fracture site 46.
A relatively large first hole 50 is drilled freehand through the bone 18, and the drilled hole 50 and a jig hole 12 a are aligned. The jig 30 is positioned relative to the jig hole 12 a so that the first portion 32 of the jig is engaged within the recess 22 of the jig hole 12 a. The jig 30 is then attached with the thumb screw 34 so that it is locked to the nail 10 and will not rotate relative to the nail, thus maintaining openings 38 in alignment over the screw holes 12 of the nail 10 in the medullary canal during the entirety of the procedure. A drill guide 40 is then inserted through respective alignment holes 38 in the jig 30, and holes are drilled with a drill 42 through the bone 18 in alignment with the screw holes 12 in the nail.
The unicortical locking screws 20 are then inserted through the drilled holes to clamp the bone 18 between the screw heads 26 and the nail 10. The jig 30 is removed. A screw 20 is then inserted into jig hole 12 a at the prior location of the jig 30. As the screw holes 12 are all oriented normal to the endosteal surface 16 of the nail 10, all the screws 20 are in a preferably parallel linear arrangement which provides maximum clamping force between the nail and screw heads for stability of the fractured bone.
When drilling the holes as described above, it is preferable that holes be drilled in the bone on one side of the fracture, and screws 20 inserted therein into the nail, the fracture then reduced with the bone under compression, and then holes drilled on the other side of the fracture with screws then inserted therein into respective holes in the nail. This order of steps operates to aid in proper healing of the fracture.
Referring now to FIGS. 6 through 8, another embodiment of the endosteal nail is shown, substantially similar to the embodiment previously described. In distinction from the prior embodiment, a jig hole 112 a and non-circular recess 122 are provided at the longitudinal center 119 of the nail.
Referring to FIGS. 7 and 8, in use, a notch 150 is created at the fracture site 146, e.g., with a rongeur. The nail 110 is inserted into the medullary canal 144 and the jig 130 is attached to the central jig hole 112 a with a thumb screw 134, with the notch 150 defining a space in the bone 118 for the first portion 132 of the jig. The jig 134 is then used with a drill guide 140 and drill 142 to drill holes in the bone in alignment with the screw holes 112. The unicortical machine-threaded screws 120 are then inserted through the bone 118 and into the nail 110 and tightened to cause the bone to be clamped between the head 126 of the screws and the nail. The jig 130 is then removed from the nail.
Turning now to FIG. 9 a third embodiment of the nail 210 is shown. The nail 210, generally as described above, includes a plurality of screw holes 212 each of which includes a non-circular recess 222 aligned thereover. Also shown is jig 230 which includes first portion 232 which engages within a recess 222, and second portion 236 which extends parallel to the nail 210. Second portion 236 includes a first and second parts 290, 292 which extend over which the screw holes on each side of the longitudinal center 219 of the nail when the jig is attached to a center screw hole 212 a. However, the second part 292 is longer than the first part and includes at least one additional opening 238 a, for a guide, which extends beyond the screw holes over the respective side when the jig is attached at the center screw hole 212 a. In use, the nail 210 is introduced into the on one side of the fracture, and then repositioned so that the longitudinal center 219 of the nail 210 is at or adjacent the fracture site. The first portion 232 of the jig 230 is placed through the fracture and coupled to preferably the center screw hole 212 a of the nail via a thumb screw 234 so that it is locked and will not rotate relative to the nail, thus maintaining openings 238 in alignment over the screw holes 212 of the first part 290 of the jig 230. Then holes are drilled through openings 238 in the first part 292 in alignment with corresponding screw holes 212 on a first side of the fracture. All but one of the drilled holes under the first part 290 is preferably provided with a screw 220. Referring to FIG. 10, the jig 230 is then disengaged from the center screw hole 212 a and attached again to the nail 210 through the drilled hole which does not yet include a screw. The fracture 246 is then reduced and compression is applied. While maintaining compression and using openings 238 on the second part 294 of the jig 230, holes are drilled through bone 218 in alignment with the screw holes on the second side of the fracture. Screws are then placed into the drilled holes and maintain the fracture in a reduced and compressed arrangement. The jig 230 is then removed and a final screw is placed in the hole where the jig was previously attached.
As an alternative to using jig 230 and repositioning its location during the procedure, two separate jigs can be used. For example, initially jig 130 may be used at the central screw location 212 a. After fracture reduction, jig 30 (or a similar jig of longer length and more openings for drill guides) can be used in a longitudinally offset location.
In all embodiments, it may be possible to attach the jig to the nail prior to insertion of the nail into the bone to facilitate manipulating the bone. In addition, the jig may include alignment structure of a sufficient length such that no separate drill guide is required. Further, it is preferable that the second portion of the jig include at least one side which is adapted to extend over and include openings for all the screw holes on one side of a fracture, and that the other side preferably include openings for at least one screw hole. Such will provide desirable functionality.
The result of the nail, jig system and methodology is that a smaller incision can be made, and the operation is relatively minimally invasive with only minor stripping of the periosteal tissue. Furthermore, the nail is easy to insert, being self-guiding into alignment within the medullary canal. Once implanted, substantially the entire system is intramedullary except for the heads and portions of the shafts of the screws. The resulting fixation is very stable due to the clamping of the fractured bone between the large screw heads and the nail. Moreover, the large screw heads distribute the stress on the bone over a relatively large surface area on the outer surface of the cortical bone.
The nail is suitable for any long bone fracture, particularly the clavicle, radius, and fibula, but may be adapted in size for larger bones such as the femur and tibia. In addition, for curved long bones, e.g., the radius, the nail can be curved.
There have been described and illustrated herein several embodiments of an endosteal nail and a method of stabilizing a fracture with the nail. While particular embodiments of the invention have been described, it is not intended that the invention be limited thereto, as it is intended that the invention be as broad in scope as the art will allow and that the specification be read likewise. Thus, while particular materials and shapes for the nail have been disclosed, it will be appreciated that other suitable materials and shapes may be used as well. In addition, in each embodiment, jig holes may be provided both at the center and offset from the center of the nail, and may be provided over each screw hole. It will therefore be appreciated by those skilled in the art that yet other modifications could be made to the provided invention without deviating from its spirit and scope as claimed.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS388000Dec 19, 1887Aug 14, 1888 Half to chaeles hUS472913Apr 9, 1888Apr 12, 1892 Nail or spikeUS1151861May 23, 1914Aug 31, 1915Ernest M BrumbackCountersinking screw-head.US2056688Nov 15, 1934Oct 6, 1936Lamson & Sessions CoWeather-tight boltUS2500370Jun 30, 1947Mar 14, 1950Genevieve MckibbinRepair of femur fractureUS2526959Jul 1, 1947Oct 24, 1950Lorenzo Frank AFracture reduction apparatusUS2614559 *Sep 6, 1950Oct 21, 1952Livingston Herman HIntramedullary barUS2821979May 18, 1953Feb 4, 1958William E StappIntramedullary splintUS3025853Jul 7, 1958Mar 20, 1962Mason Christopher AFixation device for fractured femurUS3236141Nov 5, 1963Feb 22, 1966Robert D SmithScrewUS3645161Nov 18, 1969Feb 29, 1972Pic Design CorpSolder tip setscrewUS3709218Apr 24, 1970Jan 9, 1973Halloran WCombination intramedullary fixation and external bone compression apparatusUS3717146 *Feb 1, 1971Feb 20, 1973Halloran WThreaded intramedullary compression and fixation deviceUS3741205Jun 14, 1971Jun 26, 1973N HarrisBone fixation plateUS3842825Nov 12, 1973Oct 22, 1974Wagner RHip fixation deviceUS3939498May 28, 1975Feb 24, 1976National Research Development CorporationEndoprosthetic femoral headUS4011863Jul 19, 1976Mar 15, 1977Zickel Robert ESupracondylar prosthetic nailUS4119092Apr 22, 1977Oct 10, 1978Gil Jose LuisMethods of reduction of bone fracturesUS4135507May 20, 1977Jan 23, 1979Harris Leslie JCondylocephalic nail for fixation of pertrochanteric fracturesUS4153953Apr 14, 1978May 15, 1979Grobbelaar Charl JProsthetic hip jointUS4169470Oct 19, 1977Oct 2, 1979Ender Hans GSurgical nail for use in setting bone fractures, and tool for emplacing sameUS4172452May 15, 1978Oct 30, 1979Howmedica, Inc.Fracture nail plate assemblyUS4408601Apr 6, 1981Oct 11, 1983Wilh, Wenk AgBone compression plateUS4467793Dec 12, 1980Aug 28, 1984Ender Hans GInstrumentarium for reducing and fixing of pertrochanterous and subtrochanterous fractures as well as insert member forming part of this instrumentariumUS4473069Jul 14, 1982Sep 25, 1984Lars KolmertFor the fixation of fractures in the lower femur boneUS4483335Jun 2, 1983Nov 20, 1984Tornier S.A.Nails for femoral fracturesUS4484570May 22, 1981Nov 27, 1984Synthes Ltd.Device comprising an implant and screws for fastening said implant to a bone, and a device for connecting two separated pieces of boneUS4488543Jan 19, 1983Dec 18, 1984Tornier S.A. FranceDevice for osteosynthesis of fractures of the extremities of the femurUS4493317Nov 16, 1981Jan 15, 1985Synthes Ltd. (U.S.A.)For the stabilization of broken bonesUS4503847Jan 15, 1982Mar 12, 1985Howmedica, Inc.Prosthetic nailUS4506662Jun 18, 1982Mar 26, 1985Mecron Medizinische Produkte GmbhNail for fixing a fracture of the femurUS4565193Sep 12, 1983Jan 21, 1986Elke StreliPronged plate for resetting fractured bonesUS4622959Mar 5, 1985Nov 18, 1986Marcus Randall EMulti-use femoral intramedullary nailUS4651724Jun 13, 1986Mar 24, 1987Technomed GmkBone joining plateUS4712541Dec 19, 1986Dec 15, 1987Howmedica International, Inc.Bone nail and instruments for the treatment of fracturesUS4733654May 29, 1986Mar 29, 1988Marino James FIntramedullar nailing assemblyUS4776330Jun 23, 1986Oct 11, 1988Pfizer Hospital Products Group, Inc.Modular femoral fixation systemUS4790302Jun 9, 1987Dec 13, 1988Colwill John CMethod and apparatus for fixing bone fracturesUS4794919Jan 30, 1987Jan 3, 1989Nilsson John SFixating deviceUS4800874Jul 14, 1987Jan 31, 1989Vereinigte Edelstahlwerke A.G.Anatomical bone plate and/or transfixion plateUS4867144Apr 14, 1987Sep 19, 1989Huta BaildonPlate for connecting base splinters with bone shaftsUS4915092Jun 13, 1989Apr 10, 1990Interprinderea Industria Technico-MedicalaFlexible implants for stable flexible osteosynthesis of femoral tibia fractures and working instrumentationUS4923471Oct 17, 1989May 8, 1990Timesh, Inc.Bone fracture reduction and fixation devices with identity tagsUS4955886Apr 1, 1988Sep 11, 1990The Trustees Of Columbia University In The City Of New YorkDual-taper, asymmetric hole placement in reconstruction and fracture platesUS5006120Oct 10, 1989Apr 9, 1991Carter Peter RDistal radial fracture set and method for repairing distal radial fracturesUS5013313May 26, 1989May 7, 1991Patrick SurerDevice for fixation of part on a support, especially of an implant on a boneUS5013314May 31, 1989May 7, 1991Intreprinderea Industria Tehnico-MedicalaInstrumentation and method for inserting flexible implants into fractured bonesUS5015248Jun 11, 1990May 14, 1991New York Society For The Relief Of The Ruptured & Crippled, Maintaining The Hospital For Special SurgeryBone fracture fixation deviceUS5035697Jul 3, 1990Jul 30, 1991Synthes (U.S.A.)Orthopedic medullary nailUS5041113Jul 16, 1990Aug 20, 1991Lutz BiedermannStabilization member for stabilizing bonesUS5057110 *Nov 29, 1989Oct 15, 1991Johnson & JohnsonIntramedullar nailUS5085660Nov 19, 1990Feb 4, 1992Lin Kwan CInnovative locking plate systemUS5127912Oct 5, 1990Jul 7, 1992R. Charles RaySacral implant systemUS5147361Nov 29, 1990Sep 15, 1992Asahi Kogaku Kogyo Kabushiki KaishaVertebral connecting plateUS5151103Feb 28, 1991Sep 29, 1992Synthes (U.S.A.)Point contact bone compression plateUS5190544Mar 18, 1991Mar 2, 1993Pfizer Hospital Products Group, Inc.Modular femoral fixation systemUS5197966May 22, 1992Mar 30, 1993Sommerkamp T GregRadiodorsal buttress blade plate implant for repairing distal radius fracturesUS5201733Jan 21, 1992Apr 13, 1993Etheredge Iii James LMethod and apparatus for internal fixation of fracturesUS5261910Feb 19, 1992Nov 16, 1993Acromed CorporationApparatus for maintaining spinal elements in a desired spatial relationshipUS5275601Sep 3, 1991Jan 4, 1994Synthes (U.S.A)Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachmentUS5304180May 4, 1993Apr 19, 1994Slocum D BarclayTibial osteotomy fixation plateUS5352228 *May 10, 1993Oct 4, 1994Kummer Frederick JApparatus and method to provide compression for a locked intramedullary nailUS5352229May 12, 1993Oct 4, 1994Marlowe Goble EArbor press staple and washer and method for its useUS5356253Apr 29, 1992Oct 18, 1994Whitesell Neil LSheet metal screwUS5356410Jun 8, 1993Oct 18, 1994Dietmar PennigAdjuvant for osteosynthesis in the case of pertrochanteric fracture of the neck of the femurUS5364399Feb 5, 1993Nov 15, 1994Danek Medical, Inc.System for anterior fixation of the spineUS5382248Sep 10, 1992Jan 17, 1995H. D. Medical, Inc.System and method for stabilizing bone segmentsUS5425289Oct 21, 1993Jun 20, 1995Snap-On IncorporatedBung toolUS5429641Dec 20, 1993Jul 4, 1995Gotfried; YechielSurgical device for connection of fractured bonesUS5437667Jun 7, 1994Aug 1, 1995Innovative Orthopaedics, Manufacturing, Inc.Dynamic external fixator for the wristUS5443466Dec 13, 1991Aug 22, 1995Shah; Mrugesh K.Method and apparatus for treating fractures of a boneUS5458654Jul 14, 1993Oct 17, 1995Ao-Forschungsinstitut DavosScrew-fixed femoral component for hip joint prosthesisUS5470333Jun 10, 1993Nov 28, 1995Danek Medical, Inc.System for stabilizing the cervical and the lumbar region of the spineUS5472444May 13, 1994Dec 5, 1995Acumed, Inc.For securing fracturesUS5484438Nov 23, 1994Jan 16, 1996Pennig; DietmarIntramedullary nail with screw-receiving solid insertUS5486176Feb 23, 1994Jan 23, 1996Smith & Nephew Richards, Inc.Angled bone fixation apparatusUS5520690Apr 13, 1995May 28, 1996Errico; Joseph P.Anterior spinal polyaxial locking screw plate assemblyUS5527311Jul 29, 1994Jun 18, 1996Howmedica GmbhSupport for the human spineUS5531745Nov 14, 1994Jul 2, 1996Danek Medical, Inc.System for stabilizing the spine and reducing spondylolisthesisUS5531746May 22, 1995Jul 2, 1996Fastenetix, L.L.C.Posterior spinal polyaxial locking lateral mass screw plate assemblyUS5536127Feb 22, 1995Jul 16, 1996Pennig; DietmarHeaded screw construction for use in fixing the position of an intramedullary nailUS5549612Jun 22, 1994Aug 27, 1996Codman & Shurtleff, Inc.Osteosynthesis plate systemUS5558674Dec 17, 1993Sep 24, 1996Smith & Nephew Richards, Inc.Devices and methods for posterior spinal fixationUS5578035May 16, 1995Nov 26, 1996Lin; Chih-IExpandable bone marrow cavity fixation deviceUS5586985Oct 26, 1994Dec 24, 1996Regents Of The University Of MinnesotaMethod and apparatus for fixation of distal radius fracturesUS5591168May 7, 1996Jan 7, 1997Tornier S.A.Device for stabilizing fractures of the upper end of the femurUS5601553Oct 3, 1994Feb 11, 1997Synthes (U.S.A.)Locking plate and bone screwUS5603715Sep 16, 1994Feb 18, 1997Kessler; SigurdMedullary pinUS5607426Feb 23, 1996Mar 4, 1997Fastenletix, L.L.C.Threaded polyaxial locking screw plate assemblyUS5607428May 1, 1995Mar 4, 1997Lin; Kwan C.Orthopedic fixation device having a double-threaded screwUS5616144Jun 6, 1995Apr 1, 1997Codman & Shurtleff, Inc.Osteosynthesis plate systemUS5628740Jun 30, 1995May 13, 1997Mullane; Thomas S.For surgical implantationUS5662655Jul 23, 1993Sep 2, 1997Laboureau; Jacques PhilippeOsteosynthesis plate-stapleUS5665086May 19, 1995Sep 9, 1997Asahi Kogaku Kogyo Kabushiki KaishaInstrument for inserting an intramedullary nail in a boneUS5665087Mar 26, 1996Sep 9, 1997Huebner; Randall J.Method and screw for repair of olecranon fracturesUS5665089Mar 19, 1993Sep 9, 1997Dall; Desmond MeiringBone fixation systemUS5669915Mar 22, 1996Sep 23, 1997Aesculap AgDrilling jig for surgical drilling toolsUS5676667Dec 8, 1995Oct 14, 1997Hausman; MichaelBone fixation apparatus and methodUS5681311Dec 20, 1995Oct 28, 1997Smith & Nephew, Inc.Bone fixation apparatusUS5709682Jan 24, 1996Jan 20, 1998Medoff; Robert J.Surgical clamp for fixation of bone fragmentsUS5709686Mar 27, 1995Jan 20, 1998Synthes (U.S.A.)Bone plateUS5718705Jul 16, 1996Feb 17, 1998Sammarco; Giacomo J.Internal fixation plateUS5766174 *Sep 26, 1995Jun 16, 1998Orthologic CorporationIntramedullary bone fixation deviceUS6010505 *Aug 29, 1997Jan 4, 2000Howmedica GmbhSupra condylus bone nailUS6270499 *Oct 20, 1997Aug 7, 2001Synthes (U.S.A.)Bone fixation deviceUS20030135212 *Jan 11, 2002Jul 17, 2003Y. Chow James C.Rod and plate bone fixation device for persons with osteophorosisUSRE28841Aug 3, 1972Jun 8, 1976Synthes A.G.Osteosynthetic pressure plate construction* Cited by examinerNon-Patent CitationsReference1"Advances in distal Radius Fracture Management (D)", transcript of American Academy of Orthopaedic Surgeons 2001 Conf.; pp. 134-151, Feb. 28, 2001 including Article by Matthew D. Putnam MD, "Repair and Rehabilitation of Distal Fractures: The Role of Subchondral Fixation" at pp. 144-147.2"Numelock II Polyaxial Locking System," Stryker Corporation, brochure, 2007.3"Numelock II Polyaxial Locking System," Stryker Corporation, brochure.4"SCS.TM./D Distal Radius Plate System: Dorsal", Avanta 1997.5"SCS.TM./V Distal Radius Plate: Volar", Avanta 1998.6"SCS.TM.V Distal Radius Plate: Volar", Avanta 1998.7"SMARTLock Locking Screw Technology," Stryker Corporation, website description, 2004, www.stryker.Icom.8"SMARTLock Locking Screw Technology," Stryker Corporation, website description, 2004, www.stryker.lcom.9"Summary of Safety and Effectiveness Information"; Synthes.RTM.; Jul. 29, 1998.10"The Distal Radius Plate Instrument and Implant Set", Technique Guide, Synthes.RTM., Paoli, PA 1995.11"The Titanium Distal Radius Plate", Technique Guide, SYNTHES.RTM, Paoli, PA, 1995.12"The Titanium Distal Radius Plate", Technique Guide, Synthes.RTM., Paoli, PA, 1995.13"Universal Distal Radius System", Stryker Corporation, website description, 2004, www.stryker.com.14"VAL PLATE (Volar Angle Locking) for Distal Radius Fractures", US IMPLANTS, brochure, 2007.15"VAL Plate (Volar Angle Locking) for Distal Radius Fractures", US Implants, brochure.16"Volar Peg Plate Insertion Technique", Trimed, Inc., brochure, 2007.17"Volar Peg Plate Insertion Technique", Trimed, Inc., brochure.18"Volar Peg Plate Insertion Technique", TRIMED, Inc., brochure. 2007.19"Volar Radius Plate with Angular Stability", I.T.S. (Implant Technology Systems), 510(k) Summary of Safety and Effectiveness, Feb. 6, 2004.20"Volare Winkelstabile Radiusplatte", I.T.S. (Implant Technology Systems), Spectromed, brochure, 2005, Austria.21Moftakhar, Roham, M.D. And Trost, Gregory R., M.D., "Anterior Cervical Plates: A Historical Perspective", Jan. 2004, pp. 1-5.22Nelson, "Volar Plating with Anatomic Placement and Fixed-Angle Screws", Quick Reference Guide for Contours VPS Volar Plate System by Orthofix, May 2005, www.orthofix.com.23Polyaxial and Monoaxial Spinal Screws, XIA.TM. Spinal System, www.osteonics.com/osteonics/spine/xia2.html, Jun. 25, 2002.24Putnam, D. M.D., "Repair and Rehabilitation of Distal Fractures: The Role of Ssubchondral Fixation" at pp. 144-147.25Putnam, D. M.D., "Repair and Rehabilitation of Distal Fractures: The Role of Ssubchondral Fixation" at pp. 144-147. 2001.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8568462 *Oct 30, 2008Oct 29, 2013Biomet C.V.Bone plate system with two different types of drill guidesUS8603147Feb 13, 2013Dec 10, 2013Biomet C.V.Bone plate with two different sizes of discrete drill guides connected to the plateUS20090118768 *Oct 30, 2008May 7, 2009Sixto Jr RobertElbow Fracture Fixation System* Cited by examinerClassifications U.S. Classification606/62International ClassificationA61B17/58, A61B17/80, A61B17/72Cooperative ClassificationA61B17/725, A61B17/7233, A61B17/8052, A61B17/7291, A61B17/1725, A61B17/72, A61B17/7225European ClassificationA61B17/17M, A61B17/72C2, A61B17/72, A61B17/72E4Legal EventsDateCodeEventDescriptionFeb 7, 2014FPAYFee paymentYear of fee payment: 4Feb 28, 2013ASAssignmentOwner name: HAND INNOVATIONS LLC, FLORIDAEffective date: 20041108Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNEE FROM HAND INNOVATIONS, LLC TO HAND INNOVATIONS LLC PREVIOUSLY RECORDED ON REEL 016984 FRAME 0671. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ORBAY, JORGE L.;REEL/FRAME:029892/0959Feb 20, 2013ASAssignmentEffective date: 20070323Owner name: DEPUY PRODUCTS, INC., INDIANAFree format text: CORRECTIVE ASSIGNMENT TO CORRECT THE THE NAME OF THE ASSIGNOR FROM HAND INNOVATIONS, LLC TO HAND INNOVATIONS LLC PREVIOUSLY RECORDED ON REEL 019077 FRAME 0775. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAND INNOVATIONS LLC;REEL/FRAME:029839/0484Jan 24, 2013ASAssignmentOwner name: BIOMET C.V., GIBRALTARFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEPUY PRODUCTS, INC.;REEL/FRAME:029683/0912Effective date: 20120612Mar 28, 2007ASAssignmentOwner name: DEPUY PRODUCTS, INC., INDIANAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAND INNOVATIONS, LLC;REEL/FRAME:019077/0775Effective date: 20070323Owner name: DEPUY PRODUCTS, INC.,INDIANAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAND INNOVATIONS, LLC;US-ASSIGNMENT DATABASE UPDATED:20100413;REEL/FRAME:19077/775Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAND INNOVATIONS, LLC;US-ASSIGNMENT DATABASE UPDATED:20100420;REEL/FRAME:19077/775Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAND INNOVATIONS, LLC;REEL/FRAME:19077/775Nov 7, 2005ASAssignmentOwner name: HAND INNOVATIONS, LLC, FLORIDAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ORBAY, JORGE L.;REEL/FRAME:016984/0671Effective date: 20041108RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services