Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3604487 A
Publication typeGrant
Publication dateSep 14, 1971
Filing dateMar 10, 1969
Priority dateMar 10, 1969
Publication numberUS 3604487 A, US 3604487A, US-A-3604487, US3604487 A, US3604487A
InventorsRichard S Gilbert
Original AssigneeRichard S Gilbert
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Orthopedic screw driving means
US 3604487 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

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 [72] lnventor Richard S. Gilbert 170 B Sotoyome St., Santa Rosa, Calif. 95405 [21] Appl. No. 805,572 [22] Filed Mar. 10, 1969 [45] Patented Sept. 14, 1971 [54] ORTHOPEDIC SCREW DRIVING MEANS 4 Claims, 4 Drawing Figs.

[52] US. Cl 145/50 D, 128/92 B, 128/92 E, 128/303, 85/45 [51] Int. Cl B25b 15/02, F 1 6b 23/00 [50] Field of Search 128/92, 92 B, 92 BB, 92 D, 92 E, 83, 303; 145/50, 52; 85/45 [56] 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.

I claim:

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.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US66585 *Jul 9, 1867 haeyey
US306491 *Feb 16, 1884Oct 14, 1884 Screw-driver
US954073 *Sep 28, 1907Apr 5, 1910John C KleistScrew-driver.
US2532972 *Apr 18, 1947Dec 5, 1950Vertin Donald DScrew holder and starter
US2579438 *Feb 15, 1946Dec 18, 1951Puy Mfg Company Inc DeScrew holding screw driver
US2669896 *Jan 19, 1951Feb 23, 1954Clough Robert SRetractable jaw wrench having parallel resilient jaws
US3106862 *Dec 3, 1962Oct 15, 1963Briles MfgHigh torque fastener
AT166083B * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3738355 *Aug 5, 1971Jun 12, 1973Salvatore JBone gage
US4347845 *Mar 23, 1981Sep 7, 1982Mayfield Jack KHook inserter device
US4539874 *Mar 9, 1984Sep 10, 1985Bernard JacovitzTool driver and fastener apparatus
US4653486 *Apr 12, 1984Mar 31, 1987Coker Tom PFastener, particularly suited for orthopedic use
US4877020 *May 24, 1988Oct 31, 1989Vich Jose M OApparatus for bone graft
US4963144 *Mar 17, 1989Oct 16, 1990Huene Donald RBone screw fixation assembly, bone screw therefor and method of fixation
US5190549 *Aug 2, 1990Mar 2, 1993Exactech, Inc.Locking surgical tool handle system
US5190550 *May 12, 1992Mar 2, 1993Exactech, Inc.Locking surgical tool handle system
US5217497 *Jul 3, 1991Jun 8, 1993Mehdian Seyed M HApparatus for use in the treatment of spinal disorders
US5282805 *Dec 27, 1991Feb 1, 1994Dow Corning Wright CorporationControlled force mallet
US5484440 *Aug 18, 1994Jan 16, 1996Zimmer, Inc.Bone screw and screwdriver
US5741253 *Oct 29, 1992Apr 21, 1998Michelson; Gary KarlinMethod for inserting spinal implants
US5755721 *Mar 13, 1996May 26, 1998SynthesPlate holding drill guide and trocar and method of holding a plate
US5772661 *Feb 27, 1995Jun 30, 1998Michelson; Gary KarlinMethods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
US5797909 *Jun 7, 1995Aug 25, 1998Michelson; Gary KarlinApparatus for inserting spinal implants
US5814046 *Nov 12, 1993Sep 29, 1998Sofamor S.N.C.Pedicular screw and posterior spinal instrumentation
US5941885 *Oct 8, 1996Aug 24, 1999Jackson; Roger P.Tools for use in installing osteosynthesis apparatus utilizing set screw with break-off head
US5971987 *Sep 18, 1998Oct 26, 1999Ethicon, Inc.Biocompatible absorbable polymer fastener and driver for use in surgical procedures
US6096038 *Jun 7, 1995Aug 1, 2000Michelson; Gary KarlinApparatus for inserting spinal implants
US6120502 *May 27, 1994Sep 19, 2000Michelson; Gary KarlinApparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US6123705 *Oct 1, 1996Sep 26, 2000Sdgi Holdings, Inc.Interbody spinal fusion implants
US6149650 *May 8, 1998Nov 21, 2000Michelson; Gary KarlinThreaded spinal implant
US6210412Jun 7, 1995Apr 3, 2001Gary Karlin MichelsonMethod for inserting frusto-conical interbody spinal fusion implants
US6224595Apr 20, 1998May 1, 2001Sofamor Danek Holdings, Inc.Method for inserting a spinal implant
US6264656May 8, 1998Jul 24, 2001Gary Karlin MichelsonThreaded spinal implant
US6270498Jun 7, 1995Aug 7, 2001Gary Karlin MichelsonApparatus for inserting spinal implants
US6361535Apr 26, 2001Mar 26, 2002Roger P. JacksonBone screw threaded plug closure with central set screw
US6379356 *Apr 26, 2000Apr 30, 2002Roger P. JacksonClosure for open ended medical implant
US6527773 *Oct 10, 2000Mar 4, 2003Osteotech, Inc.Cervical dowel and insertion tool
US6571588 *Nov 3, 2000Jun 3, 2003Po W. YuenSecurity nut and key assembly
US6582432Feb 2, 2000Jun 24, 2003Karlin Technology Inc.Cap for use with artificial spinal fusion implant
US6605089Sep 23, 1999Aug 12, 2003Gary Karlin MichelsonApparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US6626347 *Feb 11, 2002Sep 30, 2003Kim Kwee NgFastener retaining device for fastener driver
US6723099Nov 8, 2001Apr 20, 2004Biomet, Inc.Three sided tack for bone fixation
US6730089Aug 26, 2002May 4, 2004Roger P. JacksonNested closure plug and set screw with break-off heads
US6733504 *Nov 16, 2001May 11, 2004Osteotech, Inc.Cervical dowel and insertion tool
US6755836 *Dec 20, 2002Jun 29, 2004High Plains Technology Group, LlcBone screw fastener and apparatus for inserting and removing same
US6758849Aug 18, 2000Jul 6, 2004Sdgi Holdings, Inc.Interbody spinal fusion implants
US6770074Nov 17, 2001Aug 3, 2004Gary Karlin MichelsonApparatus for use in inserting spinal implants
US6790209 *Jul 1, 2002Sep 14, 2004Sdgi Holdings, Inc.Rod reducer instruments and methods
US6860177 *Oct 3, 2002Mar 1, 2005Valvosanitaria Bugatti S.P.A.Anti-fraud lock screw with a freely rotating dome on a polygonal head
US6875213Feb 21, 2003Apr 5, 2005Sdgi Holdings, Inc.Method of inserting spinal implants with the use of imaging
US6887248Dec 21, 2001May 3, 2005Nuvasive, Inc.Bone blocks and methods for inserting bone blocks into intervertebral spaces
US6923810Jun 7, 1995Aug 2, 2005Gary Karlin MichelsonFrusto-conical interbody spinal fusion implants
US6923814 *Oct 29, 2002Aug 2, 2005Nuvasive, Inc.System and methods for cervical spinal fusion
US6973860 *Oct 30, 2003Dec 13, 2005J&M Innovative Products, LlcSplit-tip screwdriver with protective sleeve
US7090680Feb 12, 2003Aug 15, 2006Bonati Alfred OMethod for removing orthopaedic hardware
US7115128Oct 15, 2003Oct 3, 2006Sdgi Holdings, Inc.Method for forming through a guard an implantation space in the human spine
US7204838Dec 20, 2004Apr 17, 2007Jackson Roger PMedical implant fastener with nested set screw and method
US7207991Mar 18, 2002Apr 24, 2007Warsaw Orthopedic, Inc.Method for the endoscopic correction of spinal disease
US7226453 *Mar 31, 2004Jun 5, 2007Depuy Spine, Inc.Instrument for inserting, adjusting and removing pedicle screws and other orthopedic implants
US7246540 *Dec 30, 2004Jul 24, 2007Rillera Robert PNut and bolt holder and starter
US7264622Oct 24, 2003Sep 4, 2007Warsaw Orthopedic, Inc.System for radial bone displacement
US7288093Nov 8, 2002Oct 30, 2007Warsaw Orthopedic, Inc.Spinal fusion implant having a curved end
US7291149Oct 4, 1999Nov 6, 2007Warsaw Orthopedic, Inc.Method for inserting interbody spinal fusion implants
US7326214Aug 9, 2003Feb 5, 2008Warsaw Orthopedic, Inc.Bone cutting device having a cutting edge with a non-extending center
US7371239Jul 6, 2004May 13, 2008Synthes (U.S.A.)Spinal rod insertion instrument
US7399303Aug 20, 2002Jul 15, 2008Warsaw Orthopedic, Inc.Bone cutting device and method for use thereof
US7431722Jun 6, 2000Oct 7, 2008Warsaw Orthopedic, Inc.Apparatus including a guard member having a passage with a non-circular cross section for providing protected access to the spine
US7452359Jun 7, 1995Nov 18, 2008Warsaw Orthopedic, Inc.Apparatus for inserting spinal implants
US7455672Jul 31, 2003Nov 25, 2008Gary Karlin MichelsonMethod for the delivery of electrical current to promote bone growth between adjacent bone masses
US7461574Apr 27, 2004Dec 9, 2008Biomet Microfixation, LlcMultiple screw delivery apparatus
US7462182Aug 10, 2004Dec 9, 2008Warsaw Orthopedic, Inc.Reducing instrument for spinal surgery
US7476228 *Oct 10, 2003Jan 13, 2009Abdou M SamyDistraction screw for skeletal surgery and method of use
US7491205Jun 7, 1995Feb 17, 2009Warsaw Orthopedic, Inc.Instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine
US7491207Apr 12, 2004Feb 17, 2009Synthes Usa, LlcRod persuader
US7491241Sep 16, 2003Feb 17, 2009Spinecore, Inc.Intervertebral spacer device having recessed notch pairs for manipulation using a surgical tool
US7534254Jun 7, 1995May 19, 2009Warsaw Orthopedic, Inc.Threaded frusto-conical interbody spinal fusion implants
US7569054Nov 8, 2005Aug 4, 2009Warsaw Orthopedic, Inc.Tubular member having a passage and opposed bone contacting extensions
US7572264Jun 28, 2005Aug 11, 2009Warsaw Orthopedic, Inc.Driver instrument for use in a surgical application
US7611517Feb 27, 2004Nov 3, 2009Warsaw Orthopedic, Inc.Rod reducer
US7618423Jun 14, 2003Nov 17, 2009Nuvasive, Inc.System and method for performing spinal fusion
US7621918 *Nov 23, 2004Nov 24, 2009Jackson Roger PSpinal fixation tool set and method
US7625376Jan 26, 2005Dec 1, 2009Warsaw Orthopedic, Inc.Reducing instrument for spinal surgery
US7662185Aug 28, 2003Feb 16, 2010Osteotech, Inc.Intervertebral implants
US7686805Jul 1, 2004Mar 30, 2010Warsaw Orthopedic, Inc.Methods for distraction of a disc space
US7691148Mar 19, 2005Apr 6, 2010Warsaw Orthopedic, Inc.Frusto-conical spinal implant
US7699203 *Nov 13, 2006Apr 20, 2010Warsaw Orthopedic, Inc.Variable angle surgical staple inserter
US7708780Nov 19, 2004May 4, 2010Spinecore, Inc.Instrumentation and methods for use in implanting a cervical disc replacement device
US7722619Apr 25, 2006May 25, 2010Warsaw Orthopedic, Inc.Method of maintaining distraction of a spinal disc space
US7726002Oct 13, 2004Jun 1, 2010Osteotech, Inc.Processes for making spinal intervertebral implant, interconnections for such implant
US7744598Sep 27, 2005Jun 29, 2010Warsaw Orthopedic, Inc.Reducing instrument for spinal surgery
US7766915Sep 14, 2006Aug 3, 2010Jackson Roger PDynamic fixation assemblies with inner core and outer coil-like member
US7771429Aug 25, 2006Aug 10, 2010Warsaw Orthopedic, Inc.Surgical tool for holding and inserting fasteners
US7771430 *Sep 5, 2006Aug 10, 2010K2M, Inc.Single action anti-torque rod reducer
US7776049Oct 2, 2002Aug 17, 2010Nuvasive, Inc.Spinal implant inserter, implant, and method
US7776094May 3, 2005Aug 17, 2010Nuvasive, Inc.Spinal implants and methods for inserting spinal implants into intervertebral spaces
US7780708Jan 31, 2005Aug 24, 2010Osteotech, Inc.Implant retaining device
US7811287Sep 16, 2003Oct 12, 2010Spinecore, Inc.Intervertebral spacer device having an engagement hole for a tool with an extendable post
US7828800May 18, 2009Nov 9, 2010Warsaw Orthopedic, Inc.Threaded frusto-conical interbody spinal fusion implants
US7842043 *Feb 23, 2004Nov 30, 2010Spinecore, Inc.Instrumentation for inserting and impacting an artificial intervertebral disc in an intervertebral space
US7887565Feb 18, 2006Feb 15, 2011Warsaw Orthopedic, Inc.Apparatus and method for sequential distraction
US7887568Feb 8, 2005Feb 15, 2011Nuvasive, Inc.Stackable spinal support system and related methods
US7901437Jan 8, 2008Mar 8, 2011Jackson Roger PDynamic stabilization member with molded connection
US7909834Dec 15, 2004Mar 22, 2011Depuy Spine, Inc.Self retaining set screw inserter
US7914530Apr 25, 2006Mar 29, 2011Warsaw Orthopedic, Inc.Tissue dilator and method for performing a spinal procedure
US7918891Mar 29, 2005Apr 5, 2011Nuvasive Inc.Systems and methods for spinal fusion
US7922724Apr 28, 2006Apr 12, 2011Warsaw Orthopedic, Inc.Rod reducer
US7927354Feb 17, 2006Apr 19, 2011Kyphon SarlPercutaneous spinal implants and methods
US7935116Nov 25, 2008May 3, 2011Gary Karlin MichelsonImplant for the delivery of electrical current to promote bone growth between adjacent bone masses
US7942933Apr 3, 2010May 17, 2011Warsaw Orthopedic, Inc.Frusto-conical spinal implant
US7951168 *Feb 16, 2007May 31, 2011Depuy Spine, Inc.Instruments and methods for manipulating vertebra
US7951170May 30, 2008May 31, 2011Jackson Roger PDynamic stabilization connecting member with pre-tensioned solid core
US7951172Mar 4, 2005May 31, 2011Depuy Spine SarlConstrained motion bone screw assembly
US7951174Apr 7, 2010May 31, 2011Depuy Spine, Inc.Adjustable bone screw assembly
US7951175Mar 4, 2005May 31, 2011Depuy Spine, Inc.Instruments and methods for manipulating a vertebra
US7955392Dec 14, 2006Jun 7, 2011Warsaw Orthopedic, Inc.Interspinous process devices and methods
US7992878Jul 31, 2006Aug 9, 2011Warsaw Orthopedic, IncHelical lead for a drive shaft collet
US7993342Jun 16, 2006Aug 9, 2011Kyphon SarlPercutaneous spinal implants and methods
US7993347Jul 27, 2000Aug 9, 2011Warsaw Orthopedic, Inc.Guard for use in performing human interbody spinal surgery
US8007516Feb 16, 2007Aug 30, 2011Depuy Spine, Inc.Instruments and methods for manipulating vertebra
US8012177Jun 19, 2009Sep 6, 2011Jackson Roger PDynamic stabilization assembly with frusto-conical connection
US8016836 *Jun 19, 2007Sep 13, 2011Tornier, Inc.Bone screw driver
US8029567Feb 17, 2006Oct 4, 2011Kyphon SarlPercutaneous spinal implants and methods
US8029568Jul 2, 2010Oct 4, 2011Spinecore, Inc.Intervertebral spacer device having a slotted partial circular domed arch strip spring
US8057475Nov 9, 2010Nov 15, 2011Warsaw Orthopedic, Inc.Threaded interbody spinal fusion implant
US8066705Feb 21, 2003Nov 29, 2011Warsaw Orthopedic, Inc.Instrumentation for the endoscopic correction of spinal disease
US8066739Dec 6, 2007Nov 29, 2011Jackson Roger PTool system for dynamic spinal implants
US8087329 *Feb 15, 2008Jan 3, 2012Aesculap AgScrewdriver for bone screws
US8092500Sep 15, 2009Jan 10, 2012Jackson Roger PDynamic stabilization connecting member with floating core, compression spacer and over-mold
US8092539Jul 1, 2010Jan 10, 2012Spinecore, Inc.Intervertebral spacer device having a belleville washer with concentric grooves
US8096994Mar 29, 2007Jan 17, 2012Kyphon SarlPercutaneous spinal implants and methods
US8096995Mar 29, 2007Jan 17, 2012Kyphon SarlPercutaneous spinal implants and methods
US8100915Sep 4, 2009Jan 24, 2012Jackson Roger POrthopedic implant rod reduction tool set and method
US8105329Jun 28, 2010Jan 31, 2012Warsaw Orthopedic, Inc.Reducing instrument for spinal surgery
US8105368Aug 1, 2007Jan 31, 2012Jackson Roger PDynamic stabilization connecting member with slitted core and outer sleeve
US8109979Dec 9, 2009Feb 7, 2012Spinecore, Inc.Instrumentation and methods for use in implanting a cervical disc replacement device
US8114131Nov 5, 2008Feb 14, 2012Kyphon SarlExtension limiting devices and methods of use for the spine
US8152810Nov 23, 2004Apr 10, 2012Jackson Roger PSpinal fixation tool set and method
US8157840Jun 28, 2007Apr 17, 2012Kyphon SarlSpine distraction implant and method
US8162948Jul 22, 2008Apr 24, 2012Jackson Roger POrthopedic implant rod reduction tool set and method
US8167890Oct 30, 2007May 1, 2012Kyphon SarlPercutaneous spinal implants and methods
US8187334Apr 4, 2011May 29, 2012Nuvasive, Inc.System and methods for spinal fusion
US8206387Apr 21, 2011Jun 26, 2012Michelson Gary KInterbody spinal implant inductively coupled to an external power supply
US8221458Oct 30, 2007Jul 17, 2012Kyphon SarlPercutaneous spinal implants and methods
US8226652Nov 14, 2011Jul 24, 2012Warsaw Orthopedic, Inc.Threaded frusto-conical spinal implants
US8231628Nov 30, 2009Jul 31, 2012Spinecore, Inc.Instrumentation and methods for use in implanting a cervical disc replacement device
US8246686Apr 5, 2012Aug 21, 2012Nuvasive, Inc.Systems and methods for spinal fusion
US8251997Nov 29, 2011Aug 28, 2012Warsaw Orthopedic, Inc.Method for inserting an artificial implant between two adjacent vertebrae along a coronal plane
US8273089Sep 29, 2006Sep 25, 2012Jackson Roger PSpinal fixation tool set and method
US8277507May 28, 2010Oct 2, 2012Spinecore, Inc.Spacerless artificial disc replacements
US8287597Apr 16, 2010Oct 16, 2012Nuvasive, Inc.Method and apparatus for performing spine surgery
US8292892May 13, 2009Oct 23, 2012Jackson Roger POrthopedic implant rod reduction tool set and method
US8292899May 15, 2009Oct 23, 2012Olsen Russell GApparatus and system for orthopedic fastener insertion and extraction
US8292926Aug 17, 2007Oct 23, 2012Jackson Roger PDynamic stabilization connecting member with elastic core and outer sleeve
US8303601Jun 7, 2006Nov 6, 2012Stryker SpineCollet-activated distraction wedge inserter
US8308776May 28, 2010Nov 13, 2012Samy AbdouDevices and methods for dynamic fixation of skeletal structure
US8328851Jul 28, 2006Dec 11, 2012Nuvasive, Inc.Total disc replacement system and related methods
US8333985Jan 27, 2005Dec 18, 2012Warsaw Orthopedic, Inc.Non-glycerol stabilized bone graft
US8348952Jan 26, 2006Jan 8, 2013Depuy International Ltd.System and method for cooling a spinal correction device comprising a shape memory material for corrective spinal surgery
US8353909Apr 25, 2006Jan 15, 2013Warsaw Orthopedic, Inc.Surgical instrument for distracting a spinal disc space
US8353932Aug 20, 2008Jan 15, 2013Jackson Roger PPolyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member
US8357167Oct 12, 2004Jan 22, 2013Spinecore, Inc.Artificial intervertebral disc trials with baseplates having inward tool engagement holes
US8361156Apr 6, 2012Jan 29, 2013Nuvasive, Inc.Systems and methods for spinal fusion
US8366745Jul 1, 2009Feb 5, 2013Jackson Roger PDynamic stabilization assembly having pre-compressed spacers with differential displacements
US8372157Feb 11, 2008Feb 12, 2013Warsaw Orthopedic, Inc.Joint revision implant
US8377067Jan 24, 2012Feb 19, 2013Roger P. JacksonOrthopedic implant rod reduction tool set and method
US8394133Jul 23, 2010Mar 12, 2013Roger P. JacksonDynamic fixation assemblies with inner core and outer coil-like member
US8398689Sep 14, 2010Mar 19, 2013Samy AbdouDevices and methods for dynamic fixation of skeletal structure
US8409292May 17, 2011Apr 2, 2013Warsaw Orthopedic, Inc.Spinal fusion implant
US8414614Oct 20, 2006Apr 9, 2013Depuy International LtdImplant kit for supporting a spinal column
US8425563Jan 11, 2007Apr 23, 2013Depuy International Ltd.Spinal rod support kit
US8430914Oct 24, 2008Apr 30, 2013Depuy Spine, Inc.Assembly for orthopaedic surgery
US8444681Apr 13, 2012May 21, 2013Roger P. JacksonPolyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US8460384Oct 31, 2007Jun 11, 2013Nuvasive, Inc.Stackable spinal support system
US8470041Oct 3, 2011Jun 25, 2013Spinecore, Inc.Two-component artificial disc replacements
US8475496Oct 31, 2007Jul 2, 2013Nuvasive, Inc.Stackable spinal support system
US8475498Jan 3, 2008Jul 2, 2013Roger P. JacksonDynamic stabilization connecting member with cord connection
US8506599Aug 5, 2011Aug 13, 2013Roger P. JacksonDynamic stabilization assembly with frusto-conical connection
US8540756Aug 13, 2010Sep 24, 2013Ortho Vation Medical LlcSurgical fastener and associated systems and methods
US8545564Nov 2, 2010Oct 1, 2013Spinecore, Inc.Intervertebral spacer device having an articulation member and housing
US8556938Oct 5, 2010Oct 15, 2013Roger P. JacksonPolyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
US8574301Jan 24, 2013Nov 5, 2013Nuvasive, Inc.Systems and methods for spinal fusion
US8579909 *Mar 20, 2007Nov 12, 2013Warsaw Orthopedic, IncMethods and instrument for vertebral interbody fusion
US8591515Aug 26, 2009Nov 26, 2013Roger P. JacksonSpinal fixation tool set and method
US8591560Aug 2, 2012Nov 26, 2013Roger P. JacksonDynamic stabilization connecting member with elastic core and outer sleeve
US8603144May 6, 2011Dec 10, 2013DePuy Synthes Products, LLCAdjustable bone screw assembly
US8608746Mar 10, 2008Dec 17, 2013DePuy Synthes Products, LLCDerotation instrument with reduction functionality
US8608804 *Jan 23, 2013Dec 17, 2013Nuvasive, Inc.Systems and methods for spinal fusion
US8613760Dec 14, 2011Dec 24, 2013Roger P. JacksonDynamic stabilization connecting member with slitted core and outer sleeve
US8623088Dec 5, 2008Jan 7, 2014Nuvasive, Inc.Spinal fusion implant and related methods
US8672980Aug 24, 2010Mar 18, 2014Warsaw Orthopedic, Inc.Implant retaining device
US8673005Mar 7, 2008Mar 18, 2014Nuvasive, Inc.System and methods for spinal fusion
US8679118Jul 23, 2012Mar 25, 2014Warsaw Orthopedic, Inc.Spinal implants
US8679182Aug 29, 2012Mar 25, 2014Spinecore, Inc.Spacerless artificial disc replacements
US8685105Oct 29, 2013Apr 1, 2014Nuvasive, Inc.Systems and methods for spinal fusion
US8696711Jul 30, 2012Apr 15, 2014Roger P. JacksonPolyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member
US8709015Mar 10, 2008Apr 29, 2014DePuy Synthes Products, LLCBilateral vertebral body derotation system
US8709044Jul 21, 2011Apr 29, 2014DePuy Synthes Products, LLCInstruments and methods for manipulating vertebra
US8734447Jun 27, 2000May 27, 2014Warsaw Orthopedic, Inc.Apparatus and method of inserting spinal implants
US20080234751 *Jan 31, 2007Sep 25, 2008Mcclintock Larry EAnterior vertebral plate with closed thread screw
US20110270255 *May 2, 2011Nov 3, 2011Graham SmithGuide For Drilling An Irregular-Shaped Body
US20120150182 *Nov 22, 2011Jun 14, 2012Stryker Trauma SaFixation clamp with thumbwheel
US20130138216 *Jan 23, 2013May 30, 2013Nuvasive, Inc.Systems and Methods for Spinal Fusion
USRE43526Mar 20, 2008Jul 17, 2012Warsaw Orthopedic, Inc.Rod introduction apparatus
USRE44296Mar 20, 2008Jun 11, 2013Warsaw Orthopedic, Inc.Rod reducer instruments and methods
USRE44813 *Mar 20, 2008Mar 18, 2014Warsaw Orthopedic, Inc.Rod reducer instruments and methods
EP0465158A2 *Jun 28, 1991Jan 8, 1992Seyed Mohammad Hossein MehdianApparatus for use in the treatment of spinal disorders
EP1722701A2 *Feb 23, 2005Nov 22, 2006Custom Spine, Inc.Screwdriver
WO1985004568A1 *Apr 11, 1985Oct 24, 1985Tom Phillip Coker JrFastener, particularly suited for orthopedic use
WO1994010928A1 *Nov 12, 1993May 26, 1994Christoph HopfPedicular screw and posterior spinal instrumentation
WO2004018306A2 *Aug 22, 2003Mar 4, 2004Roger P JacksonNested closure plug and set screw with break-off heads
WO2004058081A1 *Dec 20, 2002Jul 15, 2004High Plains Technology Group LBone screw fastener and apparatus for inserting and removing same
WO2005086648A2 *Feb 23, 2005Sep 22, 2005Custom Spine IncScrewdriver
WO2005099601A2 *Mar 22, 2005Oct 27, 2005David Sawyer RathbunExtraction screwdriver
WO2007031132A1 *Jul 1, 2006Mar 22, 2007Aesculap Ag & Co KgScrewdriver for bone screws
Classifications
U.S. Classification81/443, 606/104, 411/919, 411/403
International ClassificationB25B23/10, F16B23/00, A61B17/88
Cooperative ClassificationY10S411/919, F16B23/0007, B25B23/106, B25B23/10, A61B17/861, A61B17/8886, A61B17/8877
European ClassificationA61B17/88S4, A61B17/86A2, A61B17/88S2, F16B23/00B, B25B23/10D1, B25B23/10