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Publication numberUS20050004593 A1
Publication typeApplication
Application numberUS 10/899,707
Publication date6 Jan 2005
Filing date26 Jul 2004
Priority date30 Oct 2001
Also published asUS6916330, US20030083689
Publication number10899707, 899707, US 2005/0004593 A1, US 2005/004593 A1, US 20050004593 A1, US 20050004593A1, US 2005004593 A1, US 2005004593A1, US-A1-20050004593, US-A1-2005004593, US2005/0004593A1, US2005/004593A1, US20050004593 A1, US20050004593A1, US2005004593 A1, US2005004593A1
InventorsRobert Simonson
Original AssigneeDepuy Spine, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Non cannulated dilators
US 20050004593 A1
Abstract
A non-cannulated dilator that is designed with a rigid elongated solid body and with a judiciously configured tip is utilized as the first dilator of a series of dilators which are inserted into the body of a patient for minimally invasive spinal surgery and is made from a solid elongated body, that could be round, ovoid or other cross sectional configuration whose diameter is greater than one and a half (1) millimeter, and that includes a tool engaging end portion at the proximal end is sufficiently rigid so as not to bend and has a pointed shaped insertion end portion at the distal end with the point of the pointed end being discreetly blunted and utilized in a surgical procedure as a replacement of the typical guide wire and is characterized as providing a “fee” to the surgeon as it penetrates through the tissue and muscle of the patient as it proceeds toward the target.
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Claims(29)
1. A method of creating a working channel from a skin incision to proximate a vertebra, comprising:
making a skin incision,
inserting a distal end of a non cannulated dilator into the skin incision,
advancing the distal end of the dilator into proximity to a vertebra, the dilator extending from proximate the vertebra to external to the skin. incision,
inserting a cannula over the non cannulated dilator, and
removing the non cannulated dilator, a bore of the cannula defining a working channel from the skin incision to proximate the vertebra.
2. The method of claim 1, wherein the distal end of the non cannulated dilator is advanced into contact with the vertebra.
3. The method of claim 2, wherein a distal end of the cannula is advanced into contact with the vertebra.
4. The method of claim 1, wherein the distal end of the non cannulated dilator is advanced into contact with the inferior edge of the superior lamina of the vertebra.
5. The method of claim 1, further comprising selecting the size of the cannula based on the advancement of the non cannulated dilator into proximity to a vertebra.
6. The method of claim 5, wherein the non cannulated dilator is graduated to facilitate sizing of the cannula.
7. The method of claim 1, further comprising inserting a second cannula over the cannula, and inserting a third cannula over the second cannula.
8. The method of claim 1, wherein the non cannulated dilator has a diameter greater than one and a half millimeters.
9. The method of claim 1, wherein the non cannulated dilator is cylindrical in shape.
10. The method of claim 1, wherein the non cannulated dilator is ovoid in shape.
11. The method of claim 1, wherein the bore of the cannula has a circular cross-section.
12. The method of claim 1, wherein the bore of the cannula has an ovoid cross-section.
13. The method of claim 1, further comprising connecting a tool to a proximal end of the non cannulated dilator; and manipulating the tool to facilitate advancement of the non cannulated dilator into proximity to the vertebra.
14. A kit comprising:
a non cannulated dilator having an elongated solid and generally rigid shaft having a proximal end spaced apart from a distal end, the shaft being sized to extend from a skin incision to proximate a vertebra, the shaft having a shaft diameter greater than one and a half millimeter, and
a plurality of cannulas, each cannula including a bore having a bore diameter and being sized to extend from a skin incision to proximate a vertebra, at least some of the cannulas each having a bore diameter greater than a bore diameter of another cannula.
15. The kit of claim 14, wherein the plurality of cannulas comprises a first cannula having a first bore diameter greater than the shaft diameter,
a second cannula having a second bore diameter greater than the first bore diameter, and
a third cannula having a third bore diameter greater than the second bore diameter.
16. The kit of claim 14, wherein the distal end of the shaft tapers to a blunt tip.
17. The kit of claim 14, wherein the shaft includes indicia indicative of a graduated scale.
18. The kit of claim 14, wherein the shaft on the non cannulated dilator is cylindrical in shape.
19. The kit of claim 14, wherein the shaft of the non cannulated dilator is ovoid in shape.
20. The kit of claim 14, wherein the bore of at least one of the cannulas has circular cross-section.
21. The kit of claim 14, wherein the bore of at least one of the cannulas has an ovoid cross-section.
22. A method of creating a working channel through tissue to proximate a vertebra, comprising:
inserting a blunt tip of a non cannulated dilator through tissue to position the tip of the non cannulated dilator adjacent a target site on a vertebra;
inserting at least one dilator over the non cannulated dilator;
inserting a cannula over the at least one dilator and the non cannulated dilator;
removing the at least one dilator and the non cannulated dilator such that the cannula defines a working channel extending therethrough.
23. The method of claim 22, further comprising, prior to inserting the cannula, measuring a depth from a tissue surface to a target site on a vertebra.
24. The method of claim 23, wherein the cannula has a size that is commensurate with the measured depth.
25. The method of claim 23, wherein the depth of the pathway is measured using indicia formed on at least one of the non cannulated dilator and the at least one dilator.
26. The method of claim 22, wherein a distal end of the cannula is advanced into contact with the vertebra.
27. A method of creating a working channel through tissue to a surgical target, comprising:
inserting a non cannulated dilator through tissue to form a pathway to a surgical target;
inserting a series of cannulated dilators over the non cannulated dilator;
measuring a depth of the pathway;
inserting a cannula having a depth commensurate with the measured depth over the dilators;
removing the dilators such that a working channel extends through the cannula to the surgical target.
28. The method of claim 27, wherein the depth of the pathway is measured using indicia formed on at least one of the non cannulated dilator and the series of cannulated dilators.
29. The method of claim 27, wherein a distal end of the cannula is advanced into contact with the vertebra.
Description
    CROSS-REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application is a divisional of U.S. Patent Application No. 10/024,221 filed on Oct. 30, 2001 and entitled “NON CANNULATED DILATORS,” which is expressly incorporated herein by reference in its entirety.
  • FIELD OF THE INVENTION
  • [0002]
    This invention relates to dilation systems and apparatus used in performing minimal invasive surgery and particularly in an application of the instrument in initiating the surgery where dilators are utilized to enlarge the area where the surgery will be performed on a patient.
  • BACKGROUND OF THE INVENTION
  • [0003]
    As is well known by those skilled in this technology minimally invasive approaches for performing spinal surgery such as laminotomy, medial facetectomy, foraminotomy, nerve root retraction, discectomy and the like, require an initial cut into the skin and tissue of the patient before a series of increasingly larger diameter dilators are inserted to widen the area where the surgery will be performed. As is well known and as described in U.S. Pat. No. 6,159,179 granted on Dec. 12, 2000 to the inventor of this patent application and entitled “Cannula and Sizing and Insertion Method”, a guide wire with a sharpened tip to purcutaneously pass through the muscle and engage a target of bone or vertebral disc is typically used. The first dilator is then passed over the guide wire and down to the target. Unfortunately, this method is fraught with a potential danger to the patient. Because the guide wire is relatively thin where it is able to pass through the muscle and ligamentous anatomy, it can protrude into the spinal canal and hence, cause injury to the delicate neural anatomy. If the misplaced guide wire is not detected before the dilators are inserted, catastrophic injury, such as permanent disablement of the patient can occur. Obviously, since this is a potential problem as it is considered a risk to a candidate needing minimally invasive surgery, the use of this type of surgery has been stifled and its potential to grow which ultimately is for the benefit of all patients requiring this type of surgery is thwarted. Of course, the surgical target does not involve the neural anatomy in every spinal surgery and hence, in these situations the use of a guide wire is not a potential hazard and can be safely used.
  • SUMMARY OF THE INVENTION
  • [0004]
    The present invention obviates the problems noted in the above-paragraphs particularly in minimally invasive spinal surgery where it is necessary to access and decompress the spinal nerves and where safety is of a major concern. This invention utilizes a series of muscle dilators in which the first dilator is solid with a design that permits accurate passage through the muscle tissue without the assistance and risk of a pre-placed guide wire. The tip of this inventive dilator is judiciously designed to part and pass through the muscle fibers and allows the surgeon to maintain a course directed toward the intended anatomical target. Because of the inventive dilator when the muscle is passed in the insertion procedure the likelihood for the surgeon forcing the inventive dilator through the ligamentum flavum and continue to pass into the spinal canal is avoided. My invention contemplates dimensioning the non cannulated dilator such that the surgeon when performing the procedure will get a “feel” as the instrument passes through the tissue and muscle of the patient so that the surgeon will have a good sense of what portion of the anatomy is being penetrated. This will help in assisting the surgeon in avoiding the spinal canal.
  • [0005]
    This invention relates to an improvement in the instrument utilized in minimal invasive surgery of the type that utilize dilators.
  • [0006]
    A feature of this invention is a non-cannulated dilator that is made from a solid elongated body having a tip portion at the distal end and a tool engaging portion at the proximal end. The outed diameter dimension of the non-cannulated dilator is critical in that the diameter is sufficiently large so that the instrument is stiff and rigid and greater than one (11/2) mm and that the tip is discreetly blunted or rounded.
  • [0007]
    The foregoing and other features of the present invention will become more apparent from the following description and accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0008]
    These figures merely serve to further clarify and illustrate the present invention and are not intended to limit the scope thereof.
  • [0009]
    FIG. 1 is a cut-away view of the anatomy of a patient with the inventive non-cannulated dilator inserted into the patient to the target area;
  • [0010]
    FIG. 2 is a perspective view of a series of sequentially enlarged diameter dilators that are inserted over the non-cannulated dilator in order to widen the cavity to insert the cannula;
  • [0011]
    FIG. 3 is an elevated view of the non-cannulated dilator showing the details of this invention;
  • [0012]
    FIG. 4 is an end view of the proximal end of this invention illustrating the tool engaging portion; and
  • [0013]
    FIG. 5 is an end view of the distal end of this invention illustrating the blunted tip.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0014]
    While this invention in its preferred embodiment discloses ovoid shaped dilators, it is to be understood as those skilled in this art will appreciate, any shaped dilators and cannulas can be utilized with this invention. However, the initial dilator is non-cannulated, i.e. it is a solid elongated cylindrical body with a judiciously shaped pointed tip at the distal end and a tool receiving tip at the proximal end. Obviously, it is not imperative that the non cannulated dilator be cylindrical or circular in cross section as ovoid or other cross sectional shapes can be substituted therefor without departing from the scope of this invention. The term “cavity” as used herein refers to the opening in the patient formed by the non cannulated dilator, dilators and dilator retractor and becomes a working channel when the non cannula dilator and dilators are removed from the dilator retractor for the surgeon to use to perform the minimal invasive surgery the terms “cannula” and “dilator retractor” as used herein have the same meaning and are used interchangeably.
  • [0015]
    The invention can best be seen by referring to all the Figs where the inventive non-cannulated dilator is generally illustrated by reference numeral 10 consisting of a cylindrical solid elongated body 12, a tool receiving portion 14 at the proximal end, and the pointed parting tip portion 16 at the distal end. In accordance with this invention the diameter of the cylindrical solid elongated body 12 is greater than one and a half (11/2) mm and preferably substantially equal to five (5) mm. The very end of the tip portion 16 is rounded and defines a blunt portion 20 as opposed to a needle type shape that would be found, for example, on the heretofore utilized guide wire. The preferred dimensions are shown in FIGS. 3, 4 and 5. As follows:
      • A=171.5 (millimeters) (6.750 inches)
      • θ=16 degrees
      • B=5.28 mm (0.208″) diameter
      • C=1.0 mm (0.039″) diameter
      • D=Hex shape and extends 1.27 mm (0.50″) axially
  • [0021]
    While these dimensions are disclosed in the preferred embodiment as being preferred, as one skilled in this art will recognize that these dimensions can be slightly modified without departing from the scope of this invention. However, it is abundantly important that the very tip 16 of the blunt portion 20 be blunted and the diameter of the cylindrical body 12 be sufficiently large so that the tissue and muscle of the area being penetrated affords a resistance whereby the surgeon will have a feel as the instrument penetrates different portion of the anatomy. In comparison with a guide wire as used heretofore, the non-cannulated dilator 10 of this invention is relatively rigid and will not bend or flex when attempted to be bent under the normal force of the human hands as opposed to the guide wire that will bend and flex under the same force conditions.
  • [0022]
    After a small stab wound is made at the entry point, as shown in FIG. 1, the non cannulated dilator 10 is “worked” by forcing and partially rotating the dilator with the use of a tool (not shown) attached to the tool engaging end 14 until it reaches its target, and in this instance, until it reaches the inferior edge of the superior lamina. Obviously, under circumstances where the tissue and muscle do not pose a restrictive force that is sufficient to justify the use of a tool when being inserted, the non cannulated dilator may be inserted without the use of a tool. As is apparent from FIG. 1, the tip portion 16 is designed to pass through the muscle fibers and allows the surgeon to maintain a course directed toward the intended anatomical target.
  • [0023]
    Once the target has been reached, each of the dilators 18 are sequentially inserted over the non cannulated dilator in the order of the smallest to the largest diameter dilator and likewise are worked with the use of a tool until the target is reached. The non cannulated dilator 10 can be marked with a graduated scale that the surgeon can use to select the proper sized dilator retractor or cannular 21. The cannula or dilator retractor 21 is inserted over the last of the dilators 18 whereby the surgeon then has access to the target in order to proceed with the surgery or stated another way the dilator retractor 21 defines a working channel to accommodate all of the instruments used in the surgical procedure.
  • [0024]
    Obviously, in the procedure for obtaining the working channel enumerated in the immediately above paragraph, the inventive non-cannulated dilator 10 replaces the heretofore utilized guide wire avoiding or at least avoiding the likelihood of passing through the ligamentum flavum and into the spinal canal.
  • [0025]
    Although this invention has been shown and described with respect to detailed embodiments thereof, it will be appreciated and understood by those skilled in the art that various changes in form and detail thereof may be made without departing from the spirit and scope of the claimed invention.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1633703 *18 Oct 192428 Jun 1927Jiro KajiSign-making device
US2922420 *29 Nov 195726 Jan 1960Sierra Eng CoEpidural needle
US3875595 *15 Apr 19748 Apr 1975Froning Edward CIntervertebral disc prosthesis and instruments for locating same
US4440168 *31 Aug 19813 Apr 1984Warren Mark GSurgical device
US4449532 *30 Jun 198122 May 1984Karl StorzDilator to facilitate endoscope insertion into the body
US4573448 *5 Oct 19834 Mar 1986Pilling Co.Method for decompressing herniated intervertebral discs
US4736738 *2 May 198512 Apr 1988Matej LipovsekInstrument kit and procedure for performing posterior lumbar interbody fusion
US4747394 *8 Oct 198631 May 1988Watanabe Orthopedic Systems, Inc.Spinal retractor
US4798111 *3 Aug 198717 Jan 1989Cheeseman Charles DSocket-wrench hand tool
US4803976 *8 Apr 198814 Feb 1989SynthesSighting instrument
US4808157 *13 Jul 198728 Feb 1989Neuro Delivery Technology, Inc.Multi-lumen epidural-spinal needle
US4817587 *31 Aug 19874 Apr 1989Janese Woodrow WRing para-spinal retractor
US5035232 *21 Oct 198830 Jul 1991Aesculap AgRetractor
US5084043 *12 Jan 199028 Jan 1992LaserscopeMethod for performing a percutaneous diskectomy using a laser
US5098435 *21 Nov 199024 Mar 1992Alphatec Manufacturing Inc.Cannula
US5106376 *3 Jul 199021 Apr 1992B. Braun Melsungen AgAnaesthesia set
US5133720 *21 Jun 199128 Jul 1992Greenberg Alex MSurgical drill guide and retractor
US5195541 *18 Oct 199123 Mar 1993Obenchain Theodore GMethod of performing laparoscopic lumbar discectomy
US5275611 *13 Jul 19924 Jan 1994Innerdyne Medical, Inc.Tension guide and dilator
US5279567 *2 Jul 199218 Jan 1994Conmed CorporationTrocar and tube with pressure signal
US5292309 *22 Jan 19938 Mar 1994Schneider (Usa) Inc.Surgical depth measuring instrument and method
US5303694 *9 Feb 199319 Apr 1994Mikhail Michael W EMethod for performing hip surgery and retractor for use therein
US5312360 *18 Mar 199317 May 1994Innerdyne Medical, Inc.Tension guide and dilator
US5342384 *13 Aug 199230 Aug 1994Brigham & Women's HospitalSurgical dilator
US5403264 *31 Aug 19934 Apr 1995Ethicon, Inc.Endoscopic closure inspection device
US5431639 *12 Aug 199311 Jul 1995Boston Scientific CorporationTreating wounds caused by medical procedures
US5431651 *8 Feb 199311 Jul 1995Goble; E. MarloweCross pin and set screw femoral and tibial fixation method
US5489274 *9 Oct 19926 Feb 1996Boston Scientific CorporationRotatable medical valve closure
US5512038 *15 Nov 199330 Apr 1996O'neal; Darrell D.Spinal retractor apparatus having a curved blade
US5601550 *25 Oct 199411 Feb 1997Esser; Rene D.Pelvic pin guide system for insertion of pins into iliac bone
US5611778 *12 May 199318 Mar 1997VygonSurgical instrument for performing epidural anesthesia
US5716415 *8 Mar 199610 Feb 1998Acromed CorporationSpinal implant
US5728097 *9 Jul 199617 Mar 1998Sdgi Holding, Inc.Method for subcutaneous suprafascial internal fixation
US5743853 *9 Sep 199628 Apr 1998Lauderdale; Robert A.Serrated S-retractor
US5746720 *18 Dec 19955 May 1998Stouder, Jr.; Albert E.Method and apparatus for insertion of a cannula and trocar
US5766221 *9 Feb 199516 Jun 1998Boston Scientific Technology, Inc.Bone anchor implantation device
US5882344 *18 Oct 199516 Mar 1999Stouder, Jr.; Albert E.Adjustable length cannula and trocar
US5885299 *14 Mar 199623 Mar 1999Surgical Dynamics, Inc.Apparatus and method for implant insertion
US5885300 *31 Mar 199723 Mar 1999Asahi Kogaku Kogyo Kabushiki KaishaGuide apparatus of intervertebral implant
US5891147 *29 Sep 19976 Apr 1999Sdgi Holdings, Inc.Minimally invasive spinal surgical methods & instruments
US5895352 *17 Mar 199820 Apr 1999Kleiner; Jeffrey B.Surgical retractor
US5895390 *23 Jul 199720 Apr 1999Biomet, Inc.Pin placement guide used in making a bone entry hole for implantation of an intramedullary nail
US5897593 *29 Jul 199727 Apr 1999Sulzer Spine-Tech Inc.Lordotic spinal implant
US5899901 *1 Nov 19954 May 1999Middleton; Jeffrey KeithSpinal fixation system
US5902231 *24 Oct 199611 May 1999Sdgi Holdings, Inc.Devices and methods for percutaneous surgery
US5913818 *9 Sep 199722 Jun 1999General Surgical Innovations, Inc.Vascular retractor
US5954671 *28 Dec 199821 Sep 1999O'neill; Michael J.Bone harvesting method and apparatus
US6010520 *1 May 19984 Jan 2000Pattison; C. PhillipDouble tapered esophageal dilator
US6033406 *17 Mar 19987 Mar 2000Sdgi Holdings, Inc.Method for subcutaneous suprafascial pedicular internal fixation
US6063088 *24 Mar 199716 May 2000United States Surgical CorporationMethod and instrumentation for implant insertion
US6080155 *27 Feb 199527 Jun 2000Michelson; Gary KarlinMethod of inserting and preloading spinal implants
US6081741 *19 May 199927 Jun 2000Vector Medical, Inc.Infrared surgical site locating device and method
US6176823 *25 Nov 199823 Jan 2001Sdgi Holdings, Inc.Fixture for supporting a viewing element within a cannula
US6197002 *8 Feb 19996 Mar 2001Phillips Plastics CorporationLaparoscopic tool and method
US6206822 *2 Jul 199927 Mar 2001Sdgi Holdings, Inc.Devices and methods for percutaneous surgery
US6206826 *18 Jun 199927 Mar 2001Sdgi Holdings, Inc.Devices and methods for percutaneous surgery
US6206885 *12 Apr 199927 Mar 2001Fathali GhahremaniCatheter guide and drill guide apparatus and method for perpendicular insertion into a cranium orifice
US6214004 *9 Jun 199810 Apr 2001Wesley L. CokerVertebral triplaner alignment facilitator
US6217509 *20 Jan 199917 Apr 2001Sdgi Holdings, Inc.Devices and methods for percutaneous surgery
US6224597 *13 Aug 19991 May 2001Wesley L. CokerVertebral triplaner alignment method
US6224608 *3 Jun 19931 May 2001United States Surgical CorporationTissue holding device and method
US6241734 *14 Aug 19985 Jun 2001Kyphon, Inc.Systems and methods for placing materials into bone
US6245072 *9 Mar 199912 Jun 2001Sdgi Holdings, Inc.Methods and instruments for interbody fusion
US6342057 *28 Apr 200029 Jan 2002Synthes (Usa)Remotely aligned surgical drill guide
US6348058 *10 Dec 199819 Feb 2002Surgical Navigation Technologies, Inc.Image guided spinal surgery guide, system, and method for use thereof
US6354176 *10 Nov 200012 Mar 2002Greenlee Textron, Inc.Universal deep socket and adapter
US6371959 *5 Apr 200016 Apr 2002Michael E. TriceRadiolucent position locating device and drill guide
US6371968 *8 May 199716 Apr 2002Olympus Optical Co., Ltd.Cavity retaining tool for bone surgery, a cavity retaining tool for general surgery, an endoscopic surgery system involving the use of a cavity retaining tool, and a procedure for surgery
US6395007 *14 Mar 200028 May 2002American Osteomedix, Inc.Apparatus and method for fixation of osteoporotic bone
US6520907 *30 Nov 199918 Feb 2003Sdgi Holdings, Inc.Methods for accessing the spinal column
US6524238 *20 Dec 200025 Feb 2003Synthes UsaUniversal handle and method for use
US6530926 *1 Aug 200011 Mar 2003Endius IncorporatedMethod of securing vertebrae
US6530929 *14 Jul 200011 Mar 2003Sdgi Holdings, Inc.Instruments for stabilization of bony structures
US6540756 *9 Aug 19991 Apr 2003Thomas F. VaughanPortal acquisition tool
US6558386 *10 Oct 20006 May 2003Trans1 Inc.Axial spinal implant and method and apparatus for implanting an axial spinal implant within the vertebrae of the spine
US6692434 *1 Oct 200117 Feb 2004Stephen RitlandMethod and device for retractor for microsurgical intermuscular lumbar arthrodesis
US7008424 *17 Oct 20037 Mar 2006University Of Southern CaliforniaPercutaneous vertebral fusion system
US7008431 *30 Oct 20017 Mar 2006Depuy Spine, Inc.Configured and sized cannula
US7476240 *3 Feb 200513 Jan 2009Depuy Spine, Inc.Devices and methods for inserting a spinal fixation element
US7648506 *16 Dec 200319 Jan 2010Depuy Acromed, Inc.Pivoting implant holder
US7648507 *16 Dec 200319 Jan 2010Depuy Acromed, Inc.Pivoting implant holder
US20020011135 *19 Jun 200131 Jan 2002Wayne HallReversible socket wrench set
US20020016592 *30 May 20017 Feb 2002Branch Charles L.Interbody fusion grafts and instrumentation
US20020022764 *23 Mar 200121 Feb 2002Smith Maurice M.Devices and methods for percutaneous surgery
US20020045904 *26 Jul 200118 Apr 2002Aesculap Ag & Co. KgSurgical instrument for introducing intervertebral implants
US20020049368 *1 Oct 200125 Apr 2002Stephen RitlandMethod and device for retractor for microsurgical intermuscular lumbar arthrodesis
US20020058948 *11 Oct 200116 May 2002Yvan ArlettazTargeting system and method for distal locking of intramedullary nails
US20020077632 *30 Nov 200120 Jun 2002Tsou Paul M.Method and apparatus for endoscopic spinal surgery
US20020082695 *26 Dec 200127 Jun 2002Ulrich Gmbh & Co. KgVertebral implant and setting tool therefor
US20030083688 *30 Oct 20011 May 2003Simonson Robert E.Configured and sized cannula
US20030083689 *30 Oct 20011 May 2003Simonson Robert E.Non cannulated dilators
US20040106997 *1 Nov 20023 Jun 2004Lieberson Robert E.Apparatus and method for creating a surgical channel
US20050080418 *10 Aug 200414 Apr 2005Simonson Robert E.Instruments and methods for minimally invasive spine surgery
US20050085813 *21 Oct 200321 Apr 2005Innovative Spinal TechnologiesSystem and method for stabilizing of internal structures
US20050131421 *16 Dec 200316 Jun 2005Anderson David G.Methods and devices for minimally invasive spinal fixation element placement
US20050136085 *17 Dec 200423 Jun 2005David BellamyPanthenol and natural organic extracts for reducing skin irritation
US20050137461 *31 Mar 200423 Jun 2005Depuy Spine, Inc.Telescoping blade assembly and instruments for adjusting an adjustable blade
US20070134175 *5 Feb 200714 Jun 2007David BellamyPanthenol and natural organic extracts for reducing skin irritation
USD436513 *12 Jul 199923 Jan 2001Sangadensetsukogyo Co., Ltd.Socket for screwdriver
USD438074 *24 Sep 199927 Feb 2001Donald E MarrTap socket
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US716607328 Mar 200523 Jan 2007Stephen RitlandMethod and device for microsurgical intermuscular spinal surgery
US720799230 Sep 200224 Apr 2007Stephen RitlandConnection rod for screw or hook polyaxial system and method of use
US749123622 Oct 200417 Feb 2009Trans1, Inc.Dual anchor prosthetic nucleus apparatus
US754732422 Oct 200416 Jun 2009Trans1, Inc.Spinal mobility preservation apparatus having an expandable membrane
US76550251 Mar 20052 Feb 2010Stephen RitlandAdjustable rod and connector device and method of use
US765730818 Feb 20052 Feb 2010Nuvasive, Inc.System and methods for performing dynamic pedicle integrity assessments
US766217322 Oct 200416 Feb 2010Transl, Inc.Spinal mobility preservation apparatus
US766618929 Sep 200423 Feb 2010Synthes Usa, LlcLess invasive surgical system and methods
US76823758 May 200323 Mar 2010Stephen RitlandDynamic fixation device and method of use
US769105716 Jan 20046 Apr 2010Nuvasive, Inc.Surgical access system and related methods
US769549830 Jan 200713 Apr 2010Stephen RitlandConnection rod for screw or hook polyaxial system and method of use
US771795822 Oct 200418 May 2010Trans1, Inc.Prosthetic nucleus apparatus
US774063322 Oct 200422 Jun 2010Trans1 Inc.Guide pin for guiding instrumentation along a soft tissue tract to a point on the spine
US775393910 Feb 200413 Jul 2010Stephen RitlandPolyaxial connection device and method
US775858411 Apr 200720 Jul 2010Synthes Usa, LlcMinimally invasive fixation system
US77586176 Oct 200520 Jul 2010Globus Medical, Inc.Percutaneous vertebral stabilization system
US776302514 Nov 200727 Jul 2010Trans1 Inc.Spinal fusion kit for guiding instrumentation through soft tissue to a point on the spine
US776304720 Feb 200327 Jul 2010Stephen RitlandPedicle screw connector apparatus and method
US778525331 Jan 200631 Aug 2010Nuvasive, Inc.Surgical access system and related methods
US779903214 Nov 200721 Sep 2010Trans1 Inc.Guide pin introducer for guiding instrumentation through soft tissue to a point on the spine
US779903319 Nov 200721 Sep 2010Trans1 Inc.Access kits for enabling axial access and procedures in the spine
US781980127 Feb 200426 Oct 2010Nuvasive, Inc.Surgical access system and related methods
US78921737 Dec 200922 Feb 2011Nuvasive, Inc.Surgical access system and related methods
US790584018 Oct 200415 Mar 2011Nuvasive, Inc.Surgical access system and related methods
US790590531 Oct 200715 Mar 2011Trans1, Inc.Spinal mobility preservation apparatus
US790590831 Oct 200715 Mar 2011Trans1, Inc.Spinal mobility preservation method
US790983025 Aug 200522 Mar 2011Synthes Usa, LlcMethods of spinal fixation and instrumentation
US79145356 Feb 200929 Mar 2011Trans1 Inc.Method and apparatus for manipulating material in the spine
US791887823 Aug 20075 Apr 2011Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US792092224 Feb 20105 Apr 2011Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US792272723 Aug 200712 Apr 2011Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US793505122 Apr 20093 May 2011Nuvasive, Inc.Surgical access system and related methods
US7959564 *9 Jul 200714 Jun 2011Stephen RitlandPedicle seeker and retractor, and methods of use
US796219131 Oct 200714 Jun 2011Nuvasive, Inc.Nerve surveillance cannulae systems
US796392721 Apr 200421 Jun 2011Nuvasive, Inc.Electromyography system
US798524518 Nov 200526 Jul 2011Stephen RitlandConnection rod for screw or hook polyaxial system and method of use
US80007821 Dec 200916 Aug 2011Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US800553514 Apr 200923 Aug 2011Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US801676723 Apr 200713 Sep 2011Nuvasive, Inc.Surgical access system and related methods
US802139919 Jul 200620 Sep 2011Stephen RitlandRod extension for extending fusion construct
US802771620 Apr 200927 Sep 2011Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US80507691 May 20091 Nov 2011Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US805261322 Oct 20048 Nov 2011Trans1 Inc.Spinal nucleus extraction tool
US80689129 Jan 200429 Nov 2011Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US807558124 May 200513 Dec 2011Lanx, Inc.Muscle saving device and method
US811401930 Dec 200914 Feb 2012Nuvasive, Inc.Surgical access system and related methods
US813317330 Dec 200913 Mar 2012Nuvasive, Inc.Surgical access system and related methods
US8137284 *8 Oct 200320 Mar 2012Nuvasive, Inc.Surgical access system and related methods
US814742115 Jul 20053 Apr 2012Nuvasive, Inc.System and methods for determining nerve direction to a surgical instrument
US816565314 Jun 201124 Apr 2012Nuvasive, Inc.Surgical access and nerve surveillance
US817275017 Mar 20108 May 2012Nuvasive, Inc.Surgical access system and related methods
US818242330 Dec 200922 May 2012Nuvasive, Inc.Surgical access system and related methods
US818717930 Dec 200929 May 2012Nuvasive, Inc.Surgical access system and related methods
US8192352 *9 Jul 20105 Jun 2012Coloplast A/SInstrument configured to prepare a penis for implantation of a penile prosthetic
US819235610 Dec 20095 Jun 2012Nuvasive, Inc.Surgical access system and related methods
US819235730 Dec 20095 Jun 2012Nuvasive, Inc.Surgical access system and related methods
US81924376 Jan 20055 Jun 2012Depuy Spine, Inc.Configured and sized cannula
US819243923 Aug 20075 Jun 2012Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US820631222 Sep 200626 Jun 2012Nuvasive, Inc.Multi-channel stimulation threshold detection algorithm for use in neurophysiology monitoring
US822145926 Jul 201017 Jul 2012Stephen RitlandPedicle screw connector apparatus and method
US823599910 May 20107 Aug 2012Depuy Spine, Inc.Configured and sized cannula
US824434323 Aug 201114 Aug 2012Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US82550442 Feb 201028 Aug 2012Nuvasive, Inc.System and methods for performing dynamic pedicle integrity assessments
US8255045 *3 Apr 200828 Aug 2012Nuvasive, Inc.Neurophysiologic monitoring system
US826257124 May 200411 Sep 2012Stephen RitlandIntermuscular guide for retractor insertion and method of use
US826574416 Aug 201111 Sep 2012Nuvasive, Inc.Systems and methods for performing surgical procedures and assessments
US828759716 Apr 201016 Oct 2012Nuvasive, Inc.Method and apparatus for performing spine surgery
US830349818 Feb 20116 Nov 2012Nuvasive, Inc.Surgical access system and related methods
US830351511 Dec 20096 Nov 2012Nuvasive, Inc.Surgical access system and related methods
US831343011 Jan 200720 Nov 2012Nuvasive, Inc.Surgical access system and related methods
US832885128 Jul 200611 Dec 2012Nuvasive, Inc.Total disc replacement system and related methods
US834304612 Mar 20121 Jan 2013Nuvasive, Inc.Surgical access system and related methods
US835578020 Nov 200915 Jan 2013Nuvasive, Inc.Surgical access system and related methods
US836115114 Jun 201229 Jan 2013Depuy Spine, Inc.Configured and sized cannula
US838852731 Dec 20095 Mar 2013Nuvasive, Inc.Surgical access system and related method
US840384114 Dec 200926 Mar 2013Nuvasive, Inc.Surgical access system and related methods
US84398324 Jan 201114 May 2013Nuvasive, Inc.Surgical access system and related methods
US844467821 Oct 201021 May 2013Depuy Spine, Inc.Instruments and methods for minimally invasive spine surgery
US84805767 Dec 20059 Jul 2013Faheem A. SandhuAccess system for minimally invasive spinal surgery
US848611122 Jun 200616 Jul 2013Stephen RitlandDynamic fixation device and method of use
US850063417 Jan 20136 Aug 2013Nuvasive, Inc.Surgical access system and related methods
US850065326 Jun 20126 Aug 2013Nuvasive, Inc.Neurophysiology monitoring system configured for rapid stimulation threshold acquisition
US85122351 Jun 201220 Aug 2013Nuvasive, Inc.Surgical access system and related methods
US85237688 May 20123 Sep 2013Nuvasive, Inc.Surgical access system and related methods
US85485797 Aug 20121 Oct 2013Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US85509945 Nov 20128 Oct 2013Nuvasive, Inc.Surgical access system and related methods
US855114123 Aug 20078 Oct 2013Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US855680815 Jan 201315 Oct 2013Nuvasive, Inc.Surgical access system and related methods
US855690527 Dec 201215 Oct 2013Depuy Spine, Inc.Configured and sized cannula
US85625211 Feb 201322 Oct 2013Nuvasive, Inc.Surgical access system and related methods
US856831727 Sep 200629 Oct 2013Nuvasive, Inc.System and methods for nerve monitoring
US85683312 Feb 200629 Oct 2013Nuvasive, Inc.System and methods for monitoring during anterior surgery
US858573923 Mar 201019 Nov 2013Stephen RitlandDynamic fixation device and method of use
US85914323 Jan 201126 Nov 2013Nuvasive, Inc.Surgical access system and related methods
US86029824 Apr 201310 Dec 2013Nuvasive, Inc.Surgical access system and related methods
US86170628 Jul 201031 Dec 2013Warsaw Orthopedic, Inc.Over dilation
US862846930 Jul 201314 Jan 2014Nuvasive, Inc.Surgical access system and related methods
US86349048 Nov 201121 Jan 2014Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US86417198 Apr 20114 Feb 2014Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US86631004 Sep 20134 Mar 2014Nuvasive, Inc.Surgical access system and related methods
US86728408 May 201218 Mar 2014Nuvasive, Inc.Surgical access system and related methods
US86790061 Feb 201325 Mar 2014Nuvasive, Inc.Surgical access system and related methods
US868506223 Mar 20101 Apr 2014Stephen RitlandDynamic fixation device and method of use
US86909221 Mar 20108 Apr 2014Stephen RitlandDynamic fixation device and method of use
US86965591 Feb 201315 Apr 2014Nuvasive, Inc.Surgical access system and related methods
US87088991 Feb 201329 Apr 2014Nuvasive, Inc.Surgical access system and related methods
US873812311 Feb 201327 May 2014Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US874078320 Jul 20063 Jun 2014Nuvasive, Inc.System and methods for performing neurophysiologic assessments with pressure monitoring
US87473074 Sep 201310 Jun 2014Nuvasive, Inc.Surgical access system and related methods
US875327031 Jul 201317 Jun 2014Nuvasive, Inc.Surgical access system and related methods
US875327113 Jan 201417 Jun 2014Nuvasive, Inc.Surgical access system and related methods
US876464911 Oct 20131 Jul 2014Nuvasive, Inc.Surgical access system and related methods
US87684508 Feb 20131 Jul 2014Nuvasive, Inc.System and methods for performing surgical procedures and assessments
US87904062 Apr 201229 Jul 2014William D. SmithSystems and methods for performing spine surgery
US88082963 Mar 201119 Aug 2014DePuy Synthes Products, LLCMethods of spinal fixation and instrumentation
US88121167 May 201219 Aug 2014Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US88213969 Jun 20142 Sep 2014Nuvasive, Inc.Surgical access system and related methods
US882790020 Nov 20129 Sep 2014Nuvasive, Inc.Surgical access system and related methods
US883450717 May 201116 Sep 2014Warsaw Orthopedic, Inc.Dilation instruments and methods
US883450825 May 201216 Sep 2014Spinefrontier IncMethods, tools and devices for percutaneous access in minimally invasive spinal surgeries
US884569419 Sep 201130 Sep 2014Warsaw Orthopedic, Inc.Rod extension for extending fusion construct
US885224413 Sep 20137 Oct 2014DePuy Synthes Products, LLCConfigured and sized cannula
US887096011 Dec 201228 Oct 2014Nuvasive, Inc.Total disc replacement system and related methods
US887685115 Mar 20134 Nov 2014Nuvasive, Inc.Systems and methods for performing spinal fusion surgery
US891584618 Apr 201323 Dec 2014Nuvasive, Inc.Surgical access system and related methods
US892050016 Oct 201230 Dec 2014Nuvasive, Inc.Methods and apparatus for performing spine surgery
US89323349 Sep 200513 Jan 2015Stephen RitlandDynamic fixation device and method of use
US89428019 Jun 201427 Jan 2015Nuvasive, Inc.Surgical access system and related methods
US89450041 Aug 20143 Feb 2015Nuvasive, Inc.Surgical access system and related methods
US89562833 Mar 201417 Feb 2015Nuvasive, Inc.Surgical access system and related methods
US897735215 May 201410 Mar 2015Nuvasive, Inc.Systems and methods for performing surgical procedures and assessments
US901477616 Jul 201321 Apr 2015Nuvasive, Inc.Surgical access and nerve surveillance
US90285512 Sep 201412 May 2015DePuy Synthes Products, Inc.Configured and sized cannula
US903398830 Dec 201319 May 2015Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US903725014 Feb 201319 May 2015Nuvasive, Inc.System and methods for determining nerve proximity, direction and pathology during surgery
US905593626 Nov 201316 Jun 2015Warsaw Orthopedic, Inc.Over dilation
US90845914 Jan 201321 Jul 2015Neurostructures, Inc.Retractor
US913194723 Jan 200915 Sep 2015Nuvasive, Inc.Neurophysiological apparatus and procedures
US916814928 Oct 201427 Oct 2015NaVasive, Inc.Total disc replacement system and related methods
US919248219 Dec 201424 Nov 2015Nuvasive, Inc.Methods and apparatus for performing spine surgery
US919876531 Oct 20121 Dec 2015Nuvasive, Inc.Expandable spinal fusion implants and related methods
US920487116 Jan 20158 Dec 2015Nuvasive, Inc.Surgical access system and related methods
US92267828 May 20135 Jan 2016DePuy Synthes Products, Inc.Instruments and methods for minimally invasive spine surgery
US92329677 Apr 201412 Jan 2016Stephen RitlandDynamic fixation device and method of use
US926549316 Jan 201523 Feb 2016Nuvasive, Inc.Surgical access system and related methods
US929539628 Aug 201229 Mar 2016Nuvasive, Inc.Neurophysiologic monitoring system
US930174327 May 20145 Apr 2016Nuvasive, Inc.Surgical access system and related methods
US931415229 Oct 201319 Apr 2016Nuvasive, Inc.Surgical access system and related methods
US931427424 May 201219 Apr 2016DePuy Synthes Products, Inc.Minimally invasive spinal fixation system including vertebral alignment features
US935184531 Mar 201131 May 2016Nuvasive, Inc.Method and apparatus for performing spine surgery
US939295319 Sep 201119 Jul 2016Nuvasive, Inc.Neurophysiologic monitoring
US940266313 Aug 20132 Aug 2016DePuy Synthes Products, Inc.Minimally invasive instrument set, devices and related methods
US941483123 Mar 201516 Aug 2016Spinal Usa, Inc.Stand-alone access system for minimally invasive spinal surgery
US945678315 Apr 20154 Oct 2016Nuvasive, Inc.System and methods for determining nerve proximity, direction and pathology during surgery
US94684053 Feb 201418 Oct 2016Nuvasive, Inc.Surgical access system and related methods
US94982621 Jul 201022 Nov 2016DePuy Synthes Products, Inc.Minimally invasive fixation system
US953277413 Apr 20153 Jan 2017DePuy Synthes Products, Inc.Configured and sized cannula
US954972930 Mar 201524 Jan 2017Coloplast A/SSystem for implanting a penile prosthetic includes a suture and a needle inserted into a tool
US95725624 Dec 201521 Feb 2017Nuvasive, Inc.Surgical access system and related methods
US957913123 Jun 201528 Feb 2017Nuvasive, Inc.Systems and methods for performing spine surgery
US96040404 Nov 201428 Mar 2017Nuvasive, Inc.System and methods for performing spinal fusion surgery
US961007115 Jan 20154 Apr 2017Nuvasive, Inc.Surgical access system and related methods
US961017127 Oct 20154 Apr 2017Nuvasive, Inc.Total disc replacement system and related methods
US962273211 Oct 200518 Apr 2017Nuvasive, Inc.Surgical access system and related methods
US962279029 Sep 201418 Apr 2017Warsaw Orthopedic, Inc.Rod extension for extending fusion construct
US965566522 Jan 201323 May 2017Pioneer Surgical Technology, Inc.Bone plate systems
US965574420 Oct 201523 May 2017Nuvasive, Inc.Expandable spinal fusion implants and related methods
US972450210 Jul 20158 Aug 2017Coloplast A/SDilator and method for penile prosthetic implantation
US973073815 May 201515 Aug 2017Pioneer Surgical Technology, Inc.Minimally invasive surgical system
US974385313 Feb 201529 Aug 2017Nuvasive, Inc.Electromyography system
US975049028 Apr 20145 Sep 2017Nuvasive, Inc.Surgical access system and related methods
US975706714 Mar 201312 Sep 2017Nuvasive, Inc.Systems and methods for performing neurophysiologic monitoring during spine surgery
US975707211 Feb 201412 Sep 2017Nuvasive, Inc.Waveform marker placement algorithm for use in neurophysiologic monitoring
US975724620 Oct 201512 Sep 2017Nuvasive, Inc.Methods and apparatus for performing spine surgery
US20030093078 *30 Sep 200215 May 2003Stephen RitlandConnection rod for screw or hook polyaxial system and method of use
US20030171751 *20 Feb 200311 Sep 2003Stephen RitlandPedicle screw connector apparatus and method
US20030191470 *4 Apr 20039 Oct 2003Stephen RitlandDynamic fixation device and method of use
US20040172023 *10 Feb 20042 Sep 2004Stephen RitlandPolyaxial connection device and method
US20040199084 *21 Apr 20047 Oct 2004Nuvasive, Inc.Electromyography system
US20040225228 *10 May 200411 Nov 2004Ferree Bret A.Neurophysiological apparatus and procedures
US20040254428 *24 May 200416 Dec 2004Stephen RitlandIntermuscular guide for retractor insertion and method of use
US20050113928 *22 Oct 200426 May 2005Cragg Andrew H.Dual anchor prosthetic nucleus apparatus
US20050113929 *22 Oct 200426 May 2005Cragg Andrew H.Spinal mobility preservation apparatus
US20050137601 *22 Oct 200423 Jun 2005Assell Robert L.Spinal nucleus extraction tool
US20050137604 *22 Oct 200423 Jun 2005Assell Robert L.Method and apparatus for introducing material along an access path to a treatment site
US20050137605 *22 Oct 200423 Jun 2005Assell Robert L.Guide pin for guiding instrumentation along a soft tissue tract to a point on the spine
US20050137612 *22 Oct 200423 Jun 2005Assell Robert L.Access assembly for guiding instrumentation through soft tissue to a point on the spine
US20050149034 *22 Oct 20047 Jul 2005Assell Robert L.Method and apparatus for manipulating material in the spine
US20050149035 *18 Oct 20047 Jul 2005Nuvasive, Inc.Surgical access system and related methods
US20050149049 *22 Oct 20047 Jul 2005Assell Robert L.Exchange system for soft tissue access pathway
US20050149191 *22 Oct 20047 Jul 2005Cragg Andrew H.Spinal mobility preservation apparatus having an expandable membrane
US20050165406 *22 Oct 200428 Jul 2005Assell Robert L.Kits for enabling axial access and procedures in the spine
US20050182454 *9 Jan 200418 Aug 2005Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US20050228233 *28 Mar 200513 Oct 2005Stephen RitlandMethod and device for microsurgical intermuscular spinal surgery
US20060025703 *18 Feb 20052 Feb 2006Nuvasive, Inc.System and methods for performing dynamic pedicle integrity assessments
US20060063978 *16 Sep 200523 Mar 2006Stephen RitlandOpposing parallel bladed retractor and method of use
US20060069315 *25 May 200530 Mar 2006Patrick MilesSurgical access system and related methods
US20060074445 *29 Sep 20046 Apr 2006David GerberLess invasive surgical system and methods
US20060224078 *23 May 20065 Oct 2006Nuvasive, Inc.Tissue discrimination and applications in medical procedures
US20060247630 *6 Oct 20052 Nov 2006Andrew IottPercutaneous vertebral stabilization system
US20060264957 *28 Jul 200623 Nov 2006Trans1, Inc.Apparatus for performing a discectomy through a trans-sacral axial bore within the vertebrae of the spine
US20060276799 *24 May 20057 Dec 2006Jeffery ThramannMuscle saving device and method
US20070016097 *15 Jul 200518 Jan 2007Nuvasive, Inc.System and methods for determining nerve direction to a surgical instrument
US20070016193 *22 Jun 200618 Jan 2007Stephen RitlandDynamic fixation device and method of use
US20070021682 *20 Jul 200625 Jan 2007Nuvasive Inc.System and methods for performing neurophysiologic assessments with pressure monitoring
US20070043365 *19 Jul 200622 Feb 2007Stephen RitlandRod extension for extending fusion construct
US20070066977 *9 Aug 200622 Mar 2007Assell Robert LExchange system for axial spinal procedures
US20070078460 *25 Aug 20055 Apr 2007Robert FriggMethods of spinal fixation and instrumentation
US20070129608 *7 Dec 20057 Jun 2007Sandhu Faheem AAccess system for minimally invasive spinal surgery
US20070270842 *11 Apr 200722 Nov 2007Bankoski Brian RMinimally invasive fixation sysyem
US20080009678 *9 Jul 200710 Jan 2008Stephen RitlandPedicle Seeker and Retractor, and Methods of Use
US20080039839 *23 Aug 200714 Feb 2008Pioneer Laboratories, Inc.Minimally invasive surgical system
US20080045956 *23 Aug 200721 Feb 2008Pioneer Laboratories, Inc.Minimally invasive surcigal system
US20080058606 *8 Oct 20036 Mar 2008Nuvasive, Inc.Surgical access system and related methods
US20080058837 *30 Oct 20076 Mar 2008Active Implants CorporationMethod and apparatus for computerized surgery
US20080065092 *14 Nov 200713 Mar 2008Trans1 Inc.Access assembly for guiding instrumentation through soft tissue to a point on the spine
US20080065093 *14 Nov 200713 Mar 2008Trans1 Inc.Guide pin introducer for guiding instrumentation through soft tissue to a point on the spine
US20080065144 *31 Oct 200713 Mar 2008Marino James FNerve surveillance cannulae systems
US20080071278 *19 Nov 200720 Mar 2008Trans1 Inc.Disc preparation kits for enabling axial access and procedures in the spine
US20080071282 *19 Nov 200720 Mar 2008Trans1 Inc.Access kits for enabling axial access and procedures in the spine
US20080097164 *16 Jan 200424 Apr 2008Nuvasive, Inc.Surgical access system and related methods
US20080167574 *22 Sep 200610 Jul 2008Allen FarquharMulti-Channel Stimulation Threshold Detection Algorithm For Use In Neurophysiology Monitoring
US20080188895 *31 Oct 20077 Aug 2008Cragg Andrew HSpinal mobility preservation apparatus
US20090054804 *3 Apr 200826 Feb 2009Nuvasive Inc.Neurophysiologic monitoring system
US20090105604 *2 Feb 200623 Apr 2009Nuvasive, Inc.System and Methods for Monitoring During Anterior Surgery
US20090124859 *19 Jan 200914 May 2009Trans1 Inc.Methods of use of an exchange system for soft tissue access pathway
US20090192403 *14 Apr 200930 Jul 2009Nuvasive, Inc.System And Methods For Performing Surgical Procedures and Assessments
US20090204016 *20 Apr 200913 Aug 2009Nuvasive, Inc.System And Methods For Performing Surgical Procedures and Assessments
US20090209879 *1 May 200920 Aug 2009Nuvasive, Inc.System and Methods for Determining Nerve Proximity, Direction, and Pathology During Surgery
US20090259108 *22 Apr 200915 Oct 2009Nuvasive, Inc.Surgical Access System and Related Methods
US20100069783 *20 Nov 200918 Mar 2010Nuvasive, Inc.Surgical access system and related methods
US20100076335 *1 Dec 200925 Mar 2010James GharibSystem and Methods for Performing Surgical Procedures and Assessments
US20100094093 *10 Dec 200915 Apr 2010Nuvasive, Inc.Surgical Access System and Related Methods
US20100105986 *30 Dec 200929 Apr 2010Nuvasive, Inc.Surgical Access System and Related Methods
US20100105987 *31 Dec 200929 Apr 2010Nuvasive, Inc.Surgical access system and related method
US20100113884 *30 Dec 20096 May 2010Patrick MilesSurgical Access System and Related Methods
US20100130827 *11 Dec 200927 May 2010Nuvasive, Inc.Surgical access system and related methods
US20100137690 *30 Dec 20093 Jun 2010Nuvasive, Inc.Surgical access system and related methods
US20100152604 *24 Feb 201017 Jun 2010Nuvasive, Inc.System and methods for determining nerve proximity, direction, and pathology during surgery
US20100160738 *14 Dec 200924 Jun 2010Nuvasive, Inc.Surgical access system and related methods
US20100174146 *30 Dec 20098 Jul 2010Patrick MilesSurgical access system and related methods
US20100249644 *2 Feb 201030 Sep 2010Patrick MilesSystem and Methods for Performing Dynamic Pedicle Integrity Assessements
US20100268284 *1 Jul 201021 Oct 2010Bankoski Brian RMinimally invasive fixation system
US20100286784 *28 Jul 200611 Nov 2010Matthew CurranTotal disc replacement system and related methods
US20100312279 *23 Aug 20079 Dec 2010Gephart Matthew PMinimally Invasive Surgical System
US20100317989 *16 Jun 201016 Dec 2010Nuvasive Inc.Systems and Methods for Performing Neurophysiologic Assesments With Pressure Monitoring
US20110040333 *21 Oct 201017 Feb 2011Simonson Robert EInstruments and Methods for Minimally Invasive Spine Surgery
US20110112373 *29 Oct 201012 May 2011Trans1 Inc.Soft tissue access apparatus and methods for spinal surgery
US20110130634 *20 May 20102 Jun 2011Synthes Usa, LlcPatient-mounted retraction
US20110144428 *9 Jul 201016 Jun 2011Coloplast A/SInstrument configured to prepare a penis for implantation of a penile prosthetic
US20110144439 *18 Feb 201116 Jun 2011Nuvasive, Inc.Surgical access system and related methods
US20110152940 *3 Mar 201123 Jun 2011Robert FriggMethods of spinal fixation and instrumentation
US20110196210 *4 Jan 201111 Aug 2011Nuvasive, Inc.Surgical access system and related methods
USD66629217 Jan 201228 Aug 2012Nuvasive, Inc.Dilator
USD66629324 Jan 201228 Aug 2012Nuvasive, Inc.Dilator
USD66629424 Jan 201228 Aug 2012Nuvasive, Inc.Dilator
USRE4252510 Jun 20025 Jul 2011Depuy Spine, Inc.Cannula and sizing insertion method
USRE4557117 Dec 201023 Jun 2015DePuy Synthes Products, Inc.Cannula and sizing insertion method
CN103949005A *3 May 201430 Jul 2014王祥林Radial coming-off expander for minimally invasive surgery
Classifications
U.S. Classification606/191
International ClassificationA61M29/00, A61B19/00, A61B17/02
Cooperative ClassificationA61M29/00, A61B2017/0256, A61B17/0218, A61B2090/062, A61B17/025
European ClassificationA61B17/02J, A61M29/00
Legal Events
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Owner name: DEPUY SYNTHES PRODUCTS, LLC, MASSACHUSETTS
Free format text: CHANGE OF NAME;ASSIGNOR:HAND INNOVATIONS LLC;REEL/FRAME:030352/0722
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Effective date: 20121230