|Publication number||US3604487 A|
|Publication date||Sep 14, 1971|
|Filing date||Mar 10, 1969|
|Priority date||Mar 10, 1969|
|Publication number||US 3604487 A, US 3604487A, US-A-3604487, US3604487 A, US3604487A|
|Inventors||Richard S Gilbert|
|Original Assignee||Richard S Gilbert|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Referenced by (206), Classifications (20) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Orthopedic screw driving means
US 3604487 A
United States Patent Primary ExaminerRichard A. Gaudet Assistant Examiner-Ronald L. Frinks AttorneyFlehr, Hohbach, Test, Albritton & Herbert ABSTRACT: A combination of an orthopedic screw and driving means which enables the screw to be started and driven in a single continuous operation with one hand. The screwhead has multiple slots, and the driving means has multiple pinching blades for engaging the slots to provide a rigid grip of the  lnventor Richard S. Gilbert 170 B Sotoyome St., Santa Rosa, Calif. 95405  Appl. No. 805,572  Filed Mar. 10, 1969  Patented Sept. 14, 1971  ORTHOPEDIC SCREW DRIVING MEANS 4 Claims, 4 Drawing Figs.
 US. Cl 145/50 D, 128/92 B, 128/92 E, 128/303, 85/45  Int. Cl B25b 15/02, F 1 6b 23/00  Field of Search 128/92, 92 B, 92 BB, 92 D, 92 E, 83, 303; 145/50, 52; 85/45  References Cited UNITED STATES PATENTS 66,585 7/1867 Harvey 145/52 X Z a: E a: Q Q: Q: Q @I. E Q Q: 3?
PATENIED SE?! 4 I971 INVENTOR. I B I Richard 5. Gilbert BY /8 i4, 4 Attorneys ORTHOPEDIC SCREW DRIVING MEANS BACKGROUND OF THE INVENTION Screws are used in orthopedic surgery for joining bones 5 together and for attaching foreign members, such as stainless steelplates, to bones. The screws are generally threaded into and anchored in the bones, and it is frequently necessary for the surgeon or person inserting the screws to perform the driving operation with only one hand. It is therefore desirable, and in many cases necessary, that the screws be started and driven by means of a screwdriver which is capable of holding the screws in a relatively rigid position.
Screws heretofore used in orthopedic surgery have been provided with heads having conventional slots, such as straight slots, cross-slots, and phillips heads. Holding screwdrivers which have been provided for driving the screws generally include both a blade for engaging the slot in the screwhead and a plurality of claws or fingers for gripping the screwhead. These claws or fingers extend over the sides of the screwhead and engage either the side or the lower portion of the screwhead, making it impossible to complete the driving of the screw while the holding claws are engaged with its head. Most holding screwdrivers include means for disengaging the claws and completing the driving of the screw with the claws in a retracted position. Such arrangement presents a problem in that the claws are larger than the head of the screw and obstruct the surgeons view of the head as it is seated. Consequently, the surgeon usually finds it necessary to change to a second screwdriver to complete the driving of the screw. There is a need for a solution to these and additional problems in the art.
SUMMARY AND OBJECTS OF THE INVENTION The present invention provides a combination of an orthopedic screw and driving means which enables the screw to be started and driven in a single continuous operation. The head of the screw is provided with a plurality of slots adapted for receiving the pinching blades of the driving means in such a manner that the screw and driving means are locked together without the driving means extending beyond the lateral extremities of the screwhead.
In general, it is an object of the present invention to provide a new and improved combination of an orthopedic screw and driving means.
Another object of the invention is to provide a combination of the above character which enables the screw to be started and driven in a single continuous operation.
Another object of the invention is to provide a combination of the above character wherein no part of the driving means overhangs the lateral extremities of the screwhead to interfere with the complete driving of the screw.
Another object of the invention is to provide a combination of the above character wherein the person using the combination can see the lateral extremities of the screwhead at all times during the driving operation.
Additional objects and features of the invention will appear from the following description in which the preferred embodiment is set forth in detail in conjunction with the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWING FIG. 4 is a side elevational view of the portion of the. driving.
means indicated by the line 4-4 in FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT In the preferred embodiment, the combination of the present invention consists of an orthopedic screw designated generally by reference numeral 10 and driving means designated generally by reference numeral 11. Like reference numerals are used to indicate corresponding parts in all figures of the drawing.
The orthopedic screw 10 includes an axially extending threaded stem 12 and a head 13 at one end of said threaded stem.
The threaded stem 12 comprises a substantially cylindrical shank 14 having a helical thread 15. The thread 15 is shown as a spaced thread since this is the type of thread that is commonly used in bone screws. However, as will be apparent to one skilled in the art, other types of threads may be used in the present invention. In some applications, it may be desirable to taper the thread toward its leading end or to use a conically tapered shank.
The head 13 is illustrated as a conventional oval head having a rounded upper surface 17 and a conical lower portion I8. Lower portion 18 is suitable for countersinking and has an included angle of the order of 82 Neither this angle nor the shape of the head is critical to the invention.
The screwhead 13 is provided with two slots 19 which are adapted for receiving the blades of the driving means in a manner hereinafter described in detail. Slots 19 are formed in the upper surface 17 of the screwhead. The openings of slots 19 are substantially parallel to each other and are equally spaced from the axis of the screw. The remaining portions of slots 19 are inclined with respect to the axis in such a manner that the lower portions of the slots are closer to the axis and to each other than are the upper portions of the slots. While the exact angle of inclination is not critical, particularly satisfactory results are obtained when the slots are inclined to the axis at an angle of the order of 30 In the preferred embodiment, slots 19 do not extend all the way to the edges of head 20, to assure that the blades of the driver means cannot slip transversely out of the slots while the screw is being driven. As illustrated, the slots 19 have a generally rectangular cross section, as can best be seen in FIG. 2, and a rounded bottom 21. This slot configuration is conveniently formed with a conventional milling cutter.
Tapping means, not shown, can be provided at the end of threaded stem 12 opposite head 13. This tapping means can be any conventional type of self-tapping means which is suitable for cutting threads in bone.
The screw can be fabricated of any material which is both biologically inert and otherwise suitably for use with screws. Suitable materials include stainless steel and monel metal.
In the preferred embodiment, driving means 11 comprises generally a pair of blades 26, a sleeve 27, a resilient member 28, a handle 29, and an adjusting capnut 30.
The blades 26 extend axially of driving means 11 and are adapted for pinching together to engage and hold screwhead 13. The combined cross section of the blades is generally circular.
The blades 26 have tip portions 31 at the lower ends thereof for engaging the slots in the head of the screw 10. In the preferred embodiment, these tip portions 31 are substantially straight members which are inclined at an angle with respect to the axis of the driving means. This angle of inclination corresponds to the inclination of the slots in the screwhead so that when the driver blades are engaged with the screwhead, the axes of the screw and driving means are aligned. Tip portions 31 have rounded lower extremities 33 which conform generally to the contour of the screw slots. It has been observed that the more closely the contours of tip portions 21 and slots 19 are matched, the more rigidly the screw is heldby the driving means.
Additional rigidity is provided by shoulder portions 34 which are located adjacent to tip portions 31 of blades 26. Shoulder portions. 34 have a contour corresponding to the contour of the upper surface 17 of the screwhead.
The blades 26 also include conically tapered portions 36. These conical portions extend radially outward and are located toward the lower ends of the blades. They cooperate with sleeve 27 and resilient member 28 to urge blades 26 together in a manner hereinafter described.
The upper ends of blades 26 are provided with threads 37 for engaging corresponding threads on adjusting nut 30. A key 260 is also provided proximate to the upper end of blades 26 for engaging a keyway 29b in handle 29.
The sleeve 27 is substantially cylindrical in shape and surrounds a central portion of blades 26. The lower end 41 of sleeve 27 rests against or slidably engages the surfaces of tapered portions 36, and the inner surface 42 of end 41 is beveled at an angle corresponding to the taper of conical portions 36. The upper end 43 of sleeve 27 is provided with an annular recess 44 for receiving the lower end of resilient member 28, as is more fully discussed hereinafter. In the preferred embodiment, knurling 46 is provided on the outer surface of sleeve 27 to provide a better surface for gripping.
The resilient member 28 surrounds blades 26 near the upper ends thereof. In the preferred embodiment, resilient member 28 is a conventional compression spring. The lower end of resilient member 28 engages recess 44 in sleeve 27, and the upper end is constrained by handle 29 and adjusting nut 30.
Handle 29 is generally cylindrical in shape and surrounds resilient member 28 and the upper portion of sleeve 27. Handle 29 includes an annular upper shoulder portion 29a, which engages the upper end of resilient member 28 and the lower surface of nut 30. Shoulder 29a includes a keyway 29b which cooperates with key 26a, locking blades 26 to handle 29 for rotation therewith, while permitting handle 29 to move axially with respect to blades 26.
Adjusting nut 30 is threadably mounted on the upper ends of blades 26 by means of threads 47 which engage threads 37 on blades 26. The lower surface 48 of nut 30 bears against the upper end of resilient member 28 through shoulder 29a of handle 29. Thus, nut 30 provides means for adjusting the tension in resilient member 28. As will be apparent to one skilled in the art, when nut 30 is adjusted to provide a tension in resilient member 28, sleeve 27 is urged downward against tapered portions 36 of blades 26, thereby urging blades 26 together.
Means is provided for causing blades 26 to separate whenever a force exerted by resilient member 28 is relieved. In the preferred embodiment, blades 26 are fabricated of a resilient material having cutaway portions, as indicated at 49. Thus, when the upper ends of blades 26 are held together by nut 30, the stresses in the blades urge the lower ends thereof to separate.
The dimensions of blades 26 and screwhead 13 are such that the person using the screw and driving means can see the lateral extremities of screwhead 13 throughout the entire driving operation. The lower portions of blades 26 have a combined cross-sectional area that is generally circular and smaller than the area defined by the upper surface 17 of screwhead 13. Further visibility can be provided by tapering the outer surfaces of blades 26 as indicated at 51. Conical portions 36 are located sufficiently far from the lower ends of blades 26 that they do not obstruct the user's view of the screwhead.
The operation of the combination screw and driving means can now be briefly described as follows: Let it be assumed that nut 30 has been adjusted to provide sufficient compression of resilient member 28 to force blades 26 together. Blades 26 can be separated by depressing nut 30 and handle 29 with respect to sleeve 27 to relieve the force exerted by resilient member 28 on conically tapered portions 36. This is conveniently cone by holding sleeve 27 with the palm and fingers of the hand and exerting a downward pressure on nut 30 with the thumb of the same hand. When blades 26 are thus separated, tip portions 31 can be inserted into slots 19 of screwhead l3. Thereafter,
when the thumb pressure is removed from nut 30, resilient member 28 expands, urging blades 26 to pinch together to provide an interlocking engagement between blades 26 and screwhead 13. As blade tips 31 pinch together against the inclined inner side surfaces of slots 19, the upper surface 17 of screwhead 13 is pressed firmly against shoulder portions 34 of blades 26. With blades 26 thus engaging screwhead l3, screw 10 is rigidly held by driving means 11 and can be started and driven in a single operation. Blades 26 are disengaged from screwhead 13 simply by depressing nut 30 with respect to sleeve 27 and withdrawing the tip portions from the slots.
The particular driver blade and screw slot configurations described hereinbefore are those employed in the presently preferred embodiment of the invention. However, other configurations can be used. Examples of other suitable slot configurations are described in my copending application Ser. No. 805,441, filed of even date.
Although the invention has been described herein with specific reference to the driving screws in orthopedic surgery, it will be appreciated that the invention is adaptable for use with other types of screws, such as machine screws, wood screws and sheet metal screws. Likewise, while the invention has been illustrated with reference to oval head screws, it is not limited thereto.
From the foregoing, it will be apparent that there has been provided a new and improved combination of a screw and driving means enabling an orthopedic screw to be started and driven in a single continuous operation.
1. In a screwdriver for starting and driving a screw having an axially elongate threaded stem with a head at one end thereof and a pair of spaced-apart axially inclined slots opening through the upper surface of said head, a pair of axially extending blades having generally planar axially inclined tip portions at the lower end thereof and a conically tapered portion extending radially outward intermediate said tip portions and the upper end of said blades, an axially extending sleeve surrounding a portion of said blades intermediate the conical portion and said upper end, the lower portion of said sleeve slidably engaging the tapered surface of said conical portion, an axially extending handle member surrounding a portion of said blades toward their upper end, said handle member being constrained against axial and rotational movement relative to said blades, and an axially extending resilient member disposed within said handle member, the upper end of said resilient member being constrained against axial movement and the lower end ofsaid resilient member engaging the upper portion of said sleeve member, said resilient member tending to urge the lower portion of said sleeve against the tapered portion of said conical portion, thereby urging the blades together to provide interlocking engagement between the tip portions of the blades and the inclined slots of the screwhead.
2. A screwdriver as in claim 1 further including adjusting means threadedly mounted on the upper portion of said blades for adjusting the tension in said resilient member.
3. A screwdriver as in claim 2 wherein said adjusting means includes an axially threaded member having a generally planar lower surface and wherein the upper end of said handle member is formed to include a radially extending shoulder portion, the upper surface of said shoulder portion engaging the lower surface of the adjusting member and the lower surface of said shoulder portion engaging the upper end of said resilient member.
4. A screwdriver as in claim 3 further including a radially extending lug member carried by one of said blades and an axially extending slot formed in the shoulder portion of said handle member, said lug member being slidably disposed in said slot.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US66585 *||Jul 9, 1867|| ||haeyey|
|US306491 *||Feb 16, 1884||Oct 14, 1884|| ||Screw-driver|
|US954073 *||Sep 28, 1907||Apr 5, 1910||John C Kleist||Screw-driver.|
|US2532972 *||Apr 18, 1947||Dec 5, 1950||Vertin Donald D||Screw holder and starter|
|US2579438 *||Feb 15, 1946||Dec 18, 1951||Puy Mfg Company Inc De||Screw holding screw driver|
|US2669896 *||Jan 19, 1951||Feb 23, 1954||Clough Robert S||Retractable jaw wrench having parallel resilient jaws|
|US3106862 *||Dec 3, 1962||Oct 15, 1963||Briles Mfg||High torque fastener|
|AT166083B *|| ||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3738355 *||Aug 5, 1971||Jun 12, 1973||Salvatore J||Bone gage|
|US4347845 *||Mar 23, 1981||Sep 7, 1982||Mayfield Jack K||Hook inserter device|
|US4539874 *||Mar 9, 1984||Sep 10, 1985||Bernard Jacovitz||Tool driver and fastener apparatus|
|US4653486 *||Apr 12, 1984||Mar 31, 1987||Coker Tom P||Fastener, particularly suited for orthopedic use|
|US4877020 *||May 24, 1988||Oct 31, 1989||Vich Jose M O||Apparatus for bone graft|
|US4963144 *||Mar 17, 1989||Oct 16, 1990||Huene Donald R||Bone screw fixation assembly, bone screw therefor and method of fixation|
|US5190549 *||Aug 2, 1990||Mar 2, 1993||Exactech, Inc.||Locking surgical tool handle system|
|US5190550 *||May 12, 1992||Mar 2, 1993||Exactech, Inc.||Locking surgical tool handle system|
|US5217497 *||Jul 3, 1991||Jun 8, 1993||Mehdian Seyed M H||Apparatus for use in the treatment of spinal disorders|
|US5282805 *||Dec 27, 1991||Feb 1, 1994||Dow Corning Wright Corporation||Controlled force mallet|
|US5484440 *||Aug 18, 1994||Jan 16, 1996||Zimmer, Inc.||Bone screw and screwdriver|
|US5741253 *||Oct 29, 1992||Apr 21, 1998||Michelson; Gary Karlin||Method for inserting spinal implants|
|US5755721 *||Mar 13, 1996||May 26, 1998||Synthes||Plate holding drill guide and trocar and method of holding a plate|
|US5772661 *||Feb 27, 1995||Jun 30, 1998||Michelson; Gary Karlin||Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine|
|US5797909 *||Jun 7, 1995||Aug 25, 1998||Michelson; Gary Karlin||Apparatus for inserting spinal implants|
|US5814046 *||Nov 12, 1993||Sep 29, 1998||Sofamor S.N.C.||Pedicular screw and posterior spinal instrumentation|
|US5941885 *||Oct 8, 1996||Aug 24, 1999||Jackson; Roger P.||Tools for use in installing osteosynthesis apparatus utilizing set screw with break-off head|
|US5971987 *||Sep 18, 1998||Oct 26, 1999||Ethicon, Inc.||Biocompatible absorbable polymer fastener and driver for use in surgical procedures|
|US6096038 *||Jun 7, 1995||Aug 1, 2000||Michelson; Gary Karlin||Apparatus for inserting spinal implants|
|US6120502 *||May 27, 1994||Sep 19, 2000||Michelson; Gary Karlin||Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis|
|US6123705 *||Oct 1, 1996||Sep 26, 2000||Sdgi Holdings, Inc.||Interbody spinal fusion implants|
|US6149650 *||May 8, 1998||Nov 21, 2000||Michelson; Gary Karlin||Threaded spinal implant|
|US6210412||Jun 7, 1995||Apr 3, 2001||Gary Karlin Michelson||Method for inserting frusto-conical interbody spinal fusion implants|
|US6224595||Apr 20, 1998||May 1, 2001||Sofamor Danek Holdings, Inc.||Method for inserting a spinal implant|
|US6264656||May 8, 1998||Jul 24, 2001||Gary Karlin Michelson||Threaded spinal implant|
|US6270498||Jun 7, 1995||Aug 7, 2001||Gary Karlin Michelson||Apparatus for inserting spinal implants|
|US6361535||Apr 26, 2001||Mar 26, 2002||Roger P. Jackson||Bone screw threaded plug closure with central set screw|
|US6379356 *||Apr 26, 2000||Apr 30, 2002||Roger P. Jackson||Closure for open ended medical implant|
|US6527773 *||Oct 10, 2000||Mar 4, 2003||Osteotech, Inc.||Cervical dowel and insertion tool|
|US6571588 *||Nov 3, 2000||Jun 3, 2003||Po W. Yuen||Security nut and key assembly|
|US6582432||Feb 2, 2000||Jun 24, 2003||Karlin Technology Inc.||Cap for use with artificial spinal fusion implant|
|US6605089||Sep 23, 1999||Aug 12, 2003||Gary Karlin Michelson||Apparatus and method for the delivery of electrical current for interbody spinal arthrodesis|
|US6626347 *||Feb 11, 2002||Sep 30, 2003||Kim Kwee Ng||Fastener retaining device for fastener driver|
|US6723099||Nov 8, 2001||Apr 20, 2004||Biomet, Inc.||Three sided tack for bone fixation|
|US6730089||Aug 26, 2002||May 4, 2004||Roger P. Jackson||Nested closure plug and set screw with break-off heads|
|US6733504 *||Nov 16, 2001||May 11, 2004||Osteotech, Inc.||Cervical dowel and insertion tool|
|US6755836 *||Dec 20, 2002||Jun 29, 2004||High Plains Technology Group, Llc||Bone screw fastener and apparatus for inserting and removing same|
|US6758849||Aug 18, 2000||Jul 6, 2004||Sdgi Holdings, Inc.||Interbody spinal fusion implants|
|US6770074||Nov 17, 2001||Aug 3, 2004||Gary Karlin Michelson||Apparatus for use in inserting spinal implants|
|US6790209 *||Jul 1, 2002||Sep 14, 2004||Sdgi Holdings, Inc.||Rod reducer instruments and methods|
|US6860177 *||Oct 3, 2002||Mar 1, 2005||Valvosanitaria Bugatti S.P.A.||Anti-fraud lock screw with a freely rotating dome on a polygonal head|
|US6875213||Feb 21, 2003||Apr 5, 2005||Sdgi Holdings, Inc.||Method of inserting spinal implants with the use of imaging|
|US6887248||Dec 21, 2001||May 3, 2005||Nuvasive, Inc.||Bone blocks and methods for inserting bone blocks into intervertebral spaces|
|US6923810||Jun 7, 1995||Aug 2, 2005||Gary Karlin Michelson||Frusto-conical interbody spinal fusion implants|
|US6923814 *||Oct 29, 2002||Aug 2, 2005||Nuvasive, Inc.||System and methods for cervical spinal fusion|
|US6973860 *||Oct 30, 2003||Dec 13, 2005||J&M Innovative Products, Llc||Split-tip screwdriver with protective sleeve|
|US7090680||Feb 12, 2003||Aug 15, 2006||Bonati Alfred O||Method for removing orthopaedic hardware|
|US7115128||Oct 15, 2003||Oct 3, 2006||Sdgi Holdings, Inc.||Method for forming through a guard an implantation space in the human spine|
|US7204838||Dec 20, 2004||Apr 17, 2007||Jackson Roger P||Medical implant fastener with nested set screw and method|
|US7207991||Mar 18, 2002||Apr 24, 2007||Warsaw Orthopedic, Inc.||Method for the endoscopic correction of spinal disease|
|US7226453 *||Mar 31, 2004||Jun 5, 2007||Depuy Spine, Inc.||Instrument for inserting, adjusting and removing pedicle screws and other orthopedic implants|
|US7246540 *||Dec 30, 2004||Jul 24, 2007||Rillera Robert P||Nut and bolt holder and starter|
|US7264622||Oct 24, 2003||Sep 4, 2007||Warsaw Orthopedic, Inc.||System for radial bone displacement|
|US7288093||Nov 8, 2002||Oct 30, 2007||Warsaw Orthopedic, Inc.||Spinal fusion implant having a curved end|
|US7291149||Oct 4, 1999||Nov 6, 2007||Warsaw Orthopedic, Inc.||Method for inserting interbody spinal fusion implants|
|US7326214||Aug 9, 2003||Feb 5, 2008||Warsaw Orthopedic, Inc.||Bone cutting device having a cutting edge with a non-extending center|
|US7371239||Jul 6, 2004||May 13, 2008||Synthes (U.S.A.)||Spinal rod insertion instrument|
|US7399303||Aug 20, 2002||Jul 15, 2008||Warsaw Orthopedic, Inc.||Bone cutting device and method for use thereof|
|US7431722||Jun 6, 2000||Oct 7, 2008||Warsaw Orthopedic, Inc.||Apparatus including a guard member having a passage with a non-circular cross section for providing protected access to the spine|
|US7452359||Jun 7, 1995||Nov 18, 2008||Warsaw Orthopedic, Inc.||Apparatus for inserting spinal implants|
|US7455672||Jul 31, 2003||Nov 25, 2008||Gary Karlin Michelson||Method for the delivery of electrical current to promote bone growth between adjacent bone masses|
|US7461574||Apr 27, 2004||Dec 9, 2008||Biomet Microfixation, Llc||Multiple screw delivery apparatus|
|US7462182||Aug 10, 2004||Dec 9, 2008||Warsaw Orthopedic, Inc.||Reducing instrument for spinal surgery|
|US7476228 *||Oct 10, 2003||Jan 13, 2009||Abdou M Samy||Distraction screw for skeletal surgery and method of use|
|US7491205||Jun 7, 1995||Feb 17, 2009||Warsaw Orthopedic, Inc.||Instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine|
|US7491207||Apr 12, 2004||Feb 17, 2009||Synthes Usa, Llc||Rod persuader|
|US7491241||Sep 16, 2003||Feb 17, 2009||Spinecore, Inc.||Intervertebral spacer device having recessed notch pairs for manipulation using a surgical tool|
|US7534254||Jun 7, 1995||May 19, 2009||Warsaw Orthopedic, Inc.||Threaded frusto-conical interbody spinal fusion implants|
|US7569054||Nov 8, 2005||Aug 4, 2009||Warsaw Orthopedic, Inc.||Tubular member having a passage and opposed bone contacting extensions|
|US7572264||Jun 28, 2005||Aug 11, 2009||Warsaw Orthopedic, Inc.||Driver instrument for use in a surgical application|
|US7611517||Feb 27, 2004||Nov 3, 2009||Warsaw Orthopedic, Inc.||Rod reducer|
|US7618423||Jun 14, 2003||Nov 17, 2009||Nuvasive, Inc.||System and method for performing spinal fusion|
|US7621918 *||Nov 23, 2004||Nov 24, 2009||Jackson Roger P||Spinal fixation tool set and method|
|US7625376||Jan 26, 2005||Dec 1, 2009||Warsaw Orthopedic, Inc.||Reducing instrument for spinal surgery|
|US7662185||Aug 28, 2003||Feb 16, 2010||Osteotech, Inc.||Intervertebral implants|
|US7686805||Jul 1, 2004||Mar 30, 2010||Warsaw Orthopedic, Inc.||Methods for distraction of a disc space|
|US7691148||Mar 19, 2005||Apr 6, 2010||Warsaw Orthopedic, Inc.||Frusto-conical spinal implant|
|US7699203 *||Nov 13, 2006||Apr 20, 2010||Warsaw Orthopedic, Inc.||Variable angle surgical staple inserter|
|US7708780||Nov 19, 2004||May 4, 2010||Spinecore, Inc.||Instrumentation and methods for use in implanting a cervical disc replacement device|
|US7722619||Apr 25, 2006||May 25, 2010||Warsaw Orthopedic, Inc.||Method of maintaining distraction of a spinal disc space|
|US7726002||Oct 13, 2004||Jun 1, 2010||Osteotech, Inc.||Processes for making spinal intervertebral implant, interconnections for such implant|
|US7744598||Sep 27, 2005||Jun 29, 2010||Warsaw Orthopedic, Inc.||Reducing instrument for spinal surgery|
|US7766915||Sep 14, 2006||Aug 3, 2010||Jackson Roger P||Dynamic fixation assemblies with inner core and outer coil-like member|
|US7771429||Aug 25, 2006||Aug 10, 2010||Warsaw Orthopedic, Inc.||Surgical tool for holding and inserting fasteners|
|US7771430 *||Sep 5, 2006||Aug 10, 2010||K2M, Inc.||Single action anti-torque rod reducer|
|US7776049||Oct 2, 2002||Aug 17, 2010||Nuvasive, Inc.||Spinal implant inserter, implant, and method|
|US7776094||May 3, 2005||Aug 17, 2010||Nuvasive, Inc.||Spinal implants and methods for inserting spinal implants into intervertebral spaces|
|US7780708||Jan 31, 2005||Aug 24, 2010||Osteotech, Inc.||Implant retaining device|
|US7811287||Sep 16, 2003||Oct 12, 2010||Spinecore, Inc.||Intervertebral spacer device having an engagement hole for a tool with an extendable post|
|US7828800||May 18, 2009||Nov 9, 2010||Warsaw Orthopedic, Inc.||Threaded frusto-conical interbody spinal fusion implants|
|US7842043 *||Feb 23, 2004||Nov 30, 2010||Spinecore, Inc.||Instrumentation for inserting and impacting an artificial intervertebral disc in an intervertebral space|
|US7887565||Feb 18, 2006||Feb 15, 2011||Warsaw Orthopedic, Inc.||Apparatus and method for sequential distraction|
|US7887568||Feb 8, 2005||Feb 15, 2011||Nuvasive, Inc.||Stackable spinal support system and related methods|
|US7901437||Jan 8, 2008||Mar 8, 2011||Jackson Roger P||Dynamic stabilization member with molded connection|
|US7909834||Dec 15, 2004||Mar 22, 2011||Depuy Spine, Inc.||Self retaining set screw inserter|
|US7914530||Apr 25, 2006||Mar 29, 2011||Warsaw Orthopedic, Inc.||Tissue dilator and method for performing a spinal procedure|
|US7918891||Mar 29, 2005||Apr 5, 2011||Nuvasive Inc.||Systems and methods for spinal fusion|
|US7922724||Apr 28, 2006||Apr 12, 2011||Warsaw Orthopedic, Inc.||Rod reducer|
|US7927354||Feb 17, 2006||Apr 19, 2011||Kyphon Sarl||Percutaneous spinal implants and methods|
|US7935116||Nov 25, 2008||May 3, 2011||Gary Karlin Michelson||Implant for the delivery of electrical current to promote bone growth between adjacent bone masses|
|US7942933||Apr 3, 2010||May 17, 2011||Warsaw Orthopedic, Inc.||Frusto-conical spinal implant|
|US7951168 *||Feb 16, 2007||May 31, 2011||Depuy Spine, Inc.||Instruments and methods for manipulating vertebra|
|US7951170||May 30, 2008||May 31, 2011||Jackson Roger P||Dynamic stabilization connecting member with pre-tensioned solid core|
|US7951172||Mar 4, 2005||May 31, 2011||Depuy Spine Sarl||Constrained motion bone screw assembly|
|US7951174||Apr 7, 2010||May 31, 2011||Depuy Spine, Inc.||Adjustable bone screw assembly|
|US7951175||Mar 4, 2005||May 31, 2011||Depuy Spine, Inc.||Instruments and methods for manipulating a vertebra|
|US7955392||Dec 14, 2006||Jun 7, 2011||Warsaw Orthopedic, Inc.||Interspinous process devices and methods|
|US7992878||Jul 31, 2006||Aug 9, 2011||Warsaw Orthopedic, Inc||Helical lead for a drive shaft collet|
|US7993342||Jun 16, 2006||Aug 9, 2011||Kyphon Sarl||Percutaneous spinal implants and methods|
|US7993347||Jul 27, 2000||Aug 9, 2011||Warsaw Orthopedic, Inc.||Guard for use in performing human interbody spinal surgery|
|US8007516||Feb 16, 2007||Aug 30, 2011||Depuy Spine, Inc.||Instruments and methods for manipulating vertebra|
|US8012177||Jun 19, 2009||Sep 6, 2011||Jackson Roger P||Dynamic stabilization assembly with frusto-conical connection|
|US8016836 *||Jun 19, 2007||Sep 13, 2011||Tornier, Inc.||Bone screw driver|
|US8029567||Feb 17, 2006||Oct 4, 2011||Kyphon Sarl||Percutaneous spinal implants and methods|
|US8029568||Jul 2, 2010||Oct 4, 2011||Spinecore, Inc.||Intervertebral spacer device having a slotted partial circular domed arch strip spring|
|US8057475||Nov 9, 2010||Nov 15, 2011||Warsaw Orthopedic, Inc.||Threaded interbody spinal fusion implant|
|US8066705||Feb 21, 2003||Nov 29, 2011||Warsaw Orthopedic, Inc.||Instrumentation for the endoscopic correction of spinal disease|
|US8066739||Dec 6, 2007||Nov 29, 2011||Jackson Roger P||Tool system for dynamic spinal implants|
|US8087329 *||Feb 15, 2008||Jan 3, 2012||Aesculap Ag||Screwdriver for bone screws|
|US8092500||Sep 15, 2009||Jan 10, 2012||Jackson Roger P||Dynamic stabilization connecting member with floating core, compression spacer and over-mold|
|US8092539||Jul 1, 2010||Jan 10, 2012||Spinecore, Inc.||Intervertebral spacer device having a belleville washer with concentric grooves|
|US8096994||Mar 29, 2007||Jan 17, 2012||Kyphon Sarl||Percutaneous spinal implants and methods|
|US8096995||Mar 29, 2007||Jan 17, 2012||Kyphon Sarl||Percutaneous spinal implants and methods|
|US8100915||Sep 4, 2009||Jan 24, 2012||Jackson Roger P||Orthopedic implant rod reduction tool set and method|
|US8105329||Jun 28, 2010||Jan 31, 2012||Warsaw Orthopedic, Inc.||Reducing instrument for spinal surgery|
|US8105368||Aug 1, 2007||Jan 31, 2012||Jackson Roger P||Dynamic stabilization connecting member with slitted core and outer sleeve|
|US8109979||Dec 9, 2009||Feb 7, 2012||Spinecore, Inc.||Instrumentation and methods for use in implanting a cervical disc replacement device|
|US8114131||Nov 5, 2008||Feb 14, 2012||Kyphon Sarl||Extension limiting devices and methods of use for the spine|
|US8152810||Nov 23, 2004||Apr 10, 2012||Jackson Roger P||Spinal fixation tool set and method|
|US8157840||Jun 28, 2007||Apr 17, 2012||Kyphon Sarl||Spine distraction implant and method|
|US8162948||Jul 22, 2008||Apr 24, 2012||Jackson Roger P||Orthopedic implant rod reduction tool set and method|
|US8167890||Oct 30, 2007||May 1, 2012||Kyphon Sarl||Percutaneous spinal implants and methods|
|US8187334||Apr 4, 2011||May 29, 2012||Nuvasive, Inc.||System and methods for spinal fusion|
|US8206387||Apr 21, 2011||Jun 26, 2012||Michelson Gary K||Interbody spinal implant inductively coupled to an external power supply|
|US8221458||Oct 30, 2007||Jul 17, 2012||Kyphon Sarl||Percutaneous spinal implants and methods|
|US8226652||Nov 14, 2011||Jul 24, 2012||Warsaw Orthopedic, Inc.||Threaded frusto-conical spinal implants|
|US8231628||Nov 30, 2009||Jul 31, 2012||Spinecore, Inc.||Instrumentation and methods for use in implanting a cervical disc replacement device|
|US8246686||Apr 5, 2012||Aug 21, 2012||Nuvasive, Inc.||Systems and methods for spinal fusion|
|US8251997||Nov 29, 2011||Aug 28, 2012||Warsaw Orthopedic, Inc.||Method for inserting an artificial implant between two adjacent vertebrae along a coronal plane|
|US8273089||Sep 29, 2006||Sep 25, 2012||Jackson Roger P||Spinal fixation tool set and method|
|US8277507||May 28, 2010||Oct 2, 2012||Spinecore, Inc.||Spacerless artificial disc replacements|
|US8287597||Apr 16, 2010||Oct 16, 2012||Nuvasive, Inc.||Method and apparatus for performing spine surgery|
|US8292892||May 13, 2009||Oct 23, 2012||Jackson Roger P||Orthopedic implant rod reduction tool set and method|
|US8292899||May 15, 2009||Oct 23, 2012||Olsen Russell G||Apparatus and system for orthopedic fastener insertion and extraction|
|US8292926||Aug 17, 2007||Oct 23, 2012||Jackson Roger P||Dynamic stabilization connecting member with elastic core and outer sleeve|
|US8303601||Jun 7, 2006||Nov 6, 2012||Stryker Spine||Collet-activated distraction wedge inserter|
|US8308776||May 28, 2010||Nov 13, 2012||Samy Abdou||Devices and methods for dynamic fixation of skeletal structure|
|US8328851||Jul 28, 2006||Dec 11, 2012||Nuvasive, Inc.||Total disc replacement system and related methods|
|US8333985||Jan 27, 2005||Dec 18, 2012||Warsaw Orthopedic, Inc.||Non-glycerol stabilized bone graft|
|US8348952||Jan 26, 2006||Jan 8, 2013||Depuy International Ltd.||System and method for cooling a spinal correction device comprising a shape memory material for corrective spinal surgery|
|US8353909||Apr 25, 2006||Jan 15, 2013||Warsaw Orthopedic, Inc.||Surgical instrument for distracting a spinal disc space|
|US8353932||Aug 20, 2008||Jan 15, 2013||Jackson Roger P||Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member|
|US8357167||Oct 12, 2004||Jan 22, 2013||Spinecore, Inc.||Artificial intervertebral disc trials with baseplates having inward tool engagement holes|
|US8361156||Apr 6, 2012||Jan 29, 2013||Nuvasive, Inc.||Systems and methods for spinal fusion|
|US8366745||Jul 1, 2009||Feb 5, 2013||Jackson Roger P||Dynamic stabilization assembly having pre-compressed spacers with differential displacements|
|US8372157||Feb 11, 2008||Feb 12, 2013||Warsaw Orthopedic, Inc.||Joint revision implant|
|US8377067||Jan 24, 2012||Feb 19, 2013||Roger P. Jackson||Orthopedic implant rod reduction tool set and method|
|US8394133||Jul 23, 2010||Mar 12, 2013||Roger P. Jackson||Dynamic fixation assemblies with inner core and outer coil-like member|
|US8398689||Sep 14, 2010||Mar 19, 2013||Samy Abdou||Devices and methods for dynamic fixation of skeletal structure|
|US8409292||May 17, 2011||Apr 2, 2013||Warsaw Orthopedic, Inc.||Spinal fusion implant|
|US8414614||Oct 20, 2006||Apr 9, 2013||Depuy International Ltd||Implant kit for supporting a spinal column|
|US8425563||Jan 11, 2007||Apr 23, 2013||Depuy International Ltd.||Spinal rod support kit|
|US8430914||Oct 24, 2008||Apr 30, 2013||Depuy Spine, Inc.||Assembly for orthopaedic surgery|
|US8444681||Apr 13, 2012||May 21, 2013||Roger P. Jackson||Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert|
|US8460384||Oct 31, 2007||Jun 11, 2013||Nuvasive, Inc.||Stackable spinal support system|
|US8470041||Oct 3, 2011||Jun 25, 2013||Spinecore, Inc.||Two-component artificial disc replacements|
|US8475496||Oct 31, 2007||Jul 2, 2013||Nuvasive, Inc.||Stackable spinal support system|
|US8475498||Jan 3, 2008||Jul 2, 2013||Roger P. Jackson||Dynamic stabilization connecting member with cord connection|
|US8506599||Aug 5, 2011||Aug 13, 2013||Roger P. Jackson||Dynamic stabilization assembly with frusto-conical connection|
|US8540756||Aug 13, 2010||Sep 24, 2013||Ortho Vation Medical Llc||Surgical fastener and associated systems and methods|
|US8545564||Nov 2, 2010||Oct 1, 2013||Spinecore, Inc.||Intervertebral spacer device having an articulation member and housing|
|US8556938||Oct 5, 2010||Oct 15, 2013||Roger P. Jackson||Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit|
|US8574301||Jan 24, 2013||Nov 5, 2013||Nuvasive, Inc.||Systems and methods for spinal fusion|
|US8579909 *||Mar 20, 2007||Nov 12, 2013||Warsaw Orthopedic, Inc||Methods and instrument for vertebral interbody fusion|
|US8591515||Aug 26, 2009||Nov 26, 2013||Roger P. Jackson||Spinal fixation tool set and method|
|US8591560||Aug 2, 2012||Nov 26, 2013||Roger P. Jackson||Dynamic stabilization connecting member with elastic core and outer sleeve|
|US8603144||May 6, 2011||Dec 10, 2013||DePuy Synthes Products, LLC||Adjustable bone screw assembly|
|US8608746||Mar 10, 2008||Dec 17, 2013||DePuy Synthes Products, LLC||Derotation instrument with reduction functionality|
|US8608804 *||Jan 23, 2013||Dec 17, 2013||Nuvasive, Inc.||Systems and methods for spinal fusion|
|US8613760||Dec 14, 2011||Dec 24, 2013||Roger P. Jackson||Dynamic stabilization connecting member with slitted core and outer sleeve|
|US8623088||Dec 5, 2008||Jan 7, 2014||Nuvasive, Inc.||Spinal fusion implant and related methods|
|US8672980||Aug 24, 2010||Mar 18, 2014||Warsaw Orthopedic, Inc.||Implant retaining device|
|US8673005||Mar 7, 2008||Mar 18, 2014||Nuvasive, Inc.||System and methods for spinal fusion|
|US8679118||Jul 23, 2012||Mar 25, 2014||Warsaw Orthopedic, Inc.||Spinal implants|
|US8679182||Aug 29, 2012||Mar 25, 2014||Spinecore, Inc.||Spacerless artificial disc replacements|
|US8685105||Oct 29, 2013||Apr 1, 2014||Nuvasive, Inc.||Systems and methods for spinal fusion|
|US8696711||Jul 30, 2012||Apr 15, 2014||Roger P. Jackson||Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member|
|US8709015||Mar 10, 2008||Apr 29, 2014||DePuy Synthes Products, LLC||Bilateral vertebral body derotation system|
|US8709044||Jul 21, 2011||Apr 29, 2014||DePuy Synthes Products, LLC||Instruments and methods for manipulating vertebra|
|US8734447||Jun 27, 2000||May 27, 2014||Warsaw Orthopedic, Inc.||Apparatus and method of inserting spinal implants|
|US20080234751 *||Jan 31, 2007||Sep 25, 2008||Mcclintock Larry E||Anterior vertebral plate with closed thread screw|
|US20110270255 *||May 2, 2011||Nov 3, 2011||Graham Smith||Guide For Drilling An Irregular-Shaped Body|
|US20120150182 *||Nov 22, 2011||Jun 14, 2012||Stryker Trauma Sa||Fixation clamp with thumbwheel|
|US20130138216 *||Jan 23, 2013||May 30, 2013||Nuvasive, Inc.||Systems and Methods for Spinal Fusion|
|USRE43526||Mar 20, 2008||Jul 17, 2012||Warsaw Orthopedic, Inc.||Rod introduction apparatus|
|USRE44296||Mar 20, 2008||Jun 11, 2013||Warsaw Orthopedic, Inc.||Rod reducer instruments and methods|
|USRE44813 *||Mar 20, 2008||Mar 18, 2014||Warsaw Orthopedic, Inc.||Rod reducer instruments and methods|
|EP0465158A2 *||Jun 28, 1991||Jan 8, 1992||Seyed Mohammad Hossein Mehdian||Apparatus for use in the treatment of spinal disorders|
|EP1722701A2 *||Feb 23, 2005||Nov 22, 2006||Custom Spine, Inc.||Screwdriver|
|WO1985004568A1 *||Apr 11, 1985||Oct 24, 1985||Tom Phillip Coker Jr||Fastener, particularly suited for orthopedic use|
|WO1994010928A1 *||Nov 12, 1993||May 26, 1994||Christoph Hopf||Pedicular screw and posterior spinal instrumentation|
|WO2004018306A2 *||Aug 22, 2003||Mar 4, 2004||Roger P Jackson||Nested closure plug and set screw with break-off heads|
|WO2004058081A1 *||Dec 20, 2002||Jul 15, 2004||High Plains Technology Group L||Bone screw fastener and apparatus for inserting and removing same|
|WO2005086648A2 *||Feb 23, 2005||Sep 22, 2005||Custom Spine Inc||Screwdriver|
|WO2005099601A2 *||Mar 22, 2005||Oct 27, 2005||David Sawyer Rathbun||Extraction screwdriver|
|WO2007031132A1 *||Jul 1, 2006||Mar 22, 2007||Aesculap Ag & Co Kg||Screwdriver for bone screws|
| || |
|U.S. Classification||81/443, 606/104, 411/919, 411/403|
|International Classification||B25B23/10, F16B23/00, A61B17/88|
|Cooperative Classification||Y10S411/919, F16B23/0007, B25B23/106, B25B23/10, A61B17/861, A61B17/8886, A61B17/8877|
|European Classification||A61B17/88S4, A61B17/86A2, A61B17/88S2, F16B23/00B, B25B23/10D1, B25B23/10|