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Publication numberUS3848601 A
Publication typeGrant
Publication dateNov 19, 1974
Filing dateJun 14, 1972
Priority dateJun 14, 1972
Publication numberUS 3848601 A, US 3848601A, US-A-3848601, US3848601 A, US3848601A
InventorsG Ma, D Poulson
Original AssigneeG Ma, D Poulson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method for interbody fusion of the spine
US 3848601 A
Abstract
Three units of surgical apparatus for interbody fusion of the spine and method of use. The first unit consists of an intervertebral mortising chisel with the inner drill bit used to remove a block of tissue of specified dimension. The second unit consists of the bone plug cutter with the inner bone plug ejector used to obtain bone plug of the same chosen dimension of the intervertebral mortising chisel unit. The third unit consists of the bone plug injector and the inner bone plug injector rod used to inject bone plug removed from the graft site by the bone plug cutter and placing the bone plug into the bone plug injector where the bone plug can be injected into the space which was originally created by the first unit, the intervertebral mortising chisel.
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Description  (OCR text may contain errors)

United States Patent Ma et al.

[ METHOD FOR INTERBODY FUSION OF THE SPINE [76] Inventors: Gabriel W. C. Ma, 3501 Kahawalu P ct u yt iavi flfiflg 2911. 5- Poulson, 23 Kalaka PL, Kailua, Hawaii 96734 [22] Filed: June 14, 1972 [21] Appl. No.: 262,687

[52] US. Cl 128/305, 408/30, 408/68 [51] Int. Cl... A6lb l7/32, B23b 51/08, B23b 47/00 [58] Field of Search 128/305, 310; 408/30, 68

[56] References Cited UNITED STATES PATENTS 983,810 2/1911 Crossley 408/68 1,401,469 12/1921 Hawkinson 408/30 2,919,692 l/1960 Ackermann 128/310 X 3,512,519 5/1970 Hall 128/305 X R27,032 1/1971 Hall 128/305 OTHER PUBLlCATlONS Hall, Robert M. (Ed) Air Instrument Surgery, Vol.

I, pp. 160,161,178,179,183,l92 and 193. Hall Publishing Co., Inc. New York, 1970.

Primary ExaminerChanning L. Pace Attorney, Agent, or FirmRobert E. Geauque 5 7] ABSTRACT Three units of surgical apparatus for interbody fusion of the spine and method of use. The first unit consists of an intervertebral mortising chisel with the inner drill bit used to remove a block of tissue of specified dimension. The second unit consists of the bone plug cutter with the inner bone plug ejector used to obtain bone plug of the same chosen dimension of the intervertebral mortising chisel unit. The third unit consists of the bone plug injector and the inner bone plug injector rod used to inject bone plug removed from the graft site by the bone plug cutter and placing the bone plug into the bone plug injector where the bone plug can be injected into the space which was originally created by the first unit, the intervertebral mortising chisel.

6 Claims, 21 Drawing Figures METHOD FOR INTERBODY FUSION OF THE SPINE BACKGROUND OF THE INVENTION It has been our practice to perform posterior approach interbody fusion. The procedure involves the usual midline incision; bilateral laminectomy as well as removing the inferior half of the inferior facet of the vertebra above and the superior half of the superior facet of the vertebra below at the particular interspace to get access of space to perform interbody fusion. Once the nerve root is carefully examined and gently retracted toward midline, the intervertebral disc is incised and excised, followed by curettement with round or ring curet and removed piecemeal with pituitary ronguers of various designs. It has always been customary to use osteotomes to remove the cartilaginous surface of the superior plate of the vertebra below and the inferior plate of the vertebra above, at the interspace, followed by further curettement with round or ring curets to bleeding cancellous bone surfaces before a rectangular bone graft is impacted at the interspace, bilaterally. The general technics of interbody fusion of the lumbar region are not new and the anterior ,or the posterior approach to perform interbody fusion has been known for many years. The apparatus and/or instruments have been osteotomes, curets of various'types and sizes, vibratory tool for burring holes of various dimensions, instrument for providing a round dowel with guards for various depths have been commonly devised and used.

SUMMARY or THE INVENTION The present invention provides for removal of a rectangular block of intervertebral tissue of specified dimension with guarded depth for safety, aswell as being able to obtain and inject a well fitted bone graft of the same dimension into the intervertebral space with safety and less time. With the apparatus of the invention, interbody fusion of the spine, both posterior and anterior approach, becomes a great deal simpler.

The present invention consists of three units, whereby the intervertebral mortising chisel can remove a rectangular block of tissue of specified dimension to suit the individuals intervertebral disc space with depth indicator for safety purposes, bilaterally. The bone plug cutter unit, of the same chosen dimension, enables one to remove a'bone plug from the graft site usually the posterior iliac creast and ejected by the bone plug ejector of thesame unit to be placed into the bone plug injector of the same chosen dimension, to be injected into the intervertebral space, a rectangular space, created by the mortising chisel to complete the perfectly tailored graft in place. Of course, the three unit apparatus will be used on the contralateral side in the same fashion so that two bone plugs, of the same chosen dimension, will be grafted at the desired intervertebral space. The method and apparatus can be used for anterior or posterior approach interbody fusion as well as for many other procedures whereby a specified dimension of bone block is to be removed for one reason or another when a rectangular-bone graft of the same dimension is desired.

A rectangular bone graft is superior to the round dowel because it creates positive locking, less rolling action resulting in earlier fusion at the interbody space.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a lateral view ofa bone plug atan intervertebral space and showing the manner in which the upper and lower facets are cut.

FIG. 2 is an anterior-posterior view of the intervertebral space with two bone plugs in place upon completion of the interbody fusion.

FIG. 3 is the actual size of a bone plug, /s /zX 1 inch depth.

FIG. 4a is a side elevational view of the bone plug cutter.

FIG. 4b is a side elevational view of the bone plug ejector removed from the bone plug cutter.

FIG. 5 is an elevational view of the bone plug cutter with the bone plug ejector inserted and illustrating the end cavity which receives the bone plug.

FIG. 6a is a side elevational view of the intervertebral mortising chisel.

FIG. 6b is a top plan view of the chisel of FIG. 6a.

FIG. is a side elevational view of the drill bit which is received by the intervertebral mortising chisel.

FIG. 7 is an end elevational view of the intervertebral mortising chisel with the drill bit inserted.

FIG. 8 is a lateral view showing the mortising chisel at the intervertebral space.

FIG. 9 is an anterior-posterior" view showing the opening 5 for the bone plugs as cut by the mortising chisel.

FIG. 10 is a lateral view showing the intervertebral mortising chisel inserted at a cut intervertebral space with the drill bit inserted to ream out the intervertebral disc material, as well as fabrocartilaginous material, within the mortising chisel.

FIG. 11 is a sectional view along line 1lll ofFIG. l0 showingthe mortising chisel and drill bit at the interspace.

FIG. 12a is a side elevational view showing the bone plug injector which receives the bone plug injector rod.

FIG. 12b is a partial top plan view of the injector of FIG. 12a.

FIG. 12c is a side elevational view of the injector rod.

FIG. 13 is an end elevational view along line 13-13 of FIG. 12a of the bone plug injector with the bone plug injector rod inserted.

FIG. 14 is a view of the'bone plug injector with the bone plug injector rod in place ready to enter thespace created by the intervertebral mortising chisel.

FIG. 15 is a view with the'bone plug injector holding the bone block at its end, inserted at the space created by the intervertebral mortising chisel with the bone plug injector rod in place prior to injection of the'bone plug.

FIG. 16 is a view showing the bone plug injector injecting the bone graft into the space created by the intervertebral mortising chisel with the bone plug injector rod pushing the bone plug firmly in place while the bone plug injector slides upwards, outside of the bone plug injector rod; and

FIG. 17 illustrates actual end dimensions of /8 X A inch, 1% X k inch, k X inch and 7/16 X 5/16 inch for four intervertebral mortising chisels.

DETAILED DESCRIPTION OF THE INVENTION APPARATUS FIG. 1 shows a portion of the lumbar region of the spinal column and shows an upper vertebra 20 and a lower vertebra 22 separated by a spinal disc 24. An inferior portion 25 of the inferior facet 26 is removed along the cutting line 27 and a superior portion 28 of the superior facet 29 is removed along the cutting line 30. This provides access to a portion of the vertebra on each side of the disc so that portions 20a and 22a on each side of the disc 24 can be removed along with a portion of the disc 24 to provide a cavity for a bone plug 32. FIG. 2 shows an anterior-posterior view of the intervertebral space with identical one plugs 32 in place at the completion of the interbody fusion and FIG. 3 shows size of bone plug 32 having dimensions of V2 X /s X 1 inch in length. The cross sectional size of the bone plug can vary while preferably the length of the bone plug remains about constant.

FIGS. 40, 4b and 5 illustrate a bone plug cutter by which a bone plug is obtained for insertion into a cavity. The bone cutter 40 comprises a handle portion 41 containing a cylindrical passage 42 connected with an enlarged cylindrical passage 43 in the chisel portion 44. The cutting end 44a of the chisel portion 44 is tapered outwardly and includes an enlarged cavity 46 having the exact dimensions of a desired bone plug. For instance, the bone cutter 40, to obtain the plug of FIG. 3, would require a cavity 46 extending 1 to the step 46a and having the transverse interior dimensions of exactly V2 X inch. The bone cutter can be hammered into posterior iliac crest to obtain the required two bone blocks or plugs of identical dimensions. A bone plug ejector 48 is illustrated in FIG. 4b and after the bone plug is received in cavity 46 of the cutter 40, the ejector can be inserted through passage 42 in order to push out the bone plug from the cavity 46.

The intervertebral mortising chisel 50, illustrated in FIGS. 6a and 612. has a body 51 with an enlarged end 52 for supporting handle portions 48. The body portion 51 contains a passage 49 which connects with a cavity 53 terminating in cutting end 58b. The side 54a of the chisel contains an opening 56 and sides 54b are slightly reduced to form stops 57 and 58 on each of the sides. The chisel end 58b has a tapered cutting edge 58a leading into the cavity 53. The end stops 57, 58 are located exactly 1"from the cutting edge 58a and the stops also carry an indicator line 59 which is exactly 1% inches from the chisel end 58b. The chisel end is inserted into the spinal column until the stops on the two faces 54b are reached or until the line 59 is reached, depending on the judgment of the surgeon. FIG. 8 illustrates the final position of the chisel end 58a.

The outside of the chisel formed by surfaces 54a and 54b extending from chisel end 58b have the identical dimensions of the bone plug of FIG. 3 and since the cutting edge 58a tapers inwardly towards the cavity 53, the chisel will cut in the spinal column a transverse section corresponding exactly to the bone plug. After the chisel end is inserted to the desired length, the cavity 53 contains portions a and 22a of vertebrae 20 and 22 and a section of disc 24 which are then removed by the insertion of the drill bit 62 through the passages 49 and 53 in the chisel. The drill bit (See FIG. 6c) has a shank 63 positioned by cavity 49 in the chisel and has an end drill portion 64 which is substantially the same diameter as the narrower dimension of the cavity 53. The enlarged end 65 receives a handle 66 which is secured in place by lock screw 67. Rotation of the drill bit by gripping knob 68 of handle 66 causes the drill to remove the material in cavity 53 and this removed material can be taken from the chisel through opening 56 by means of a suitable pituitary rongeurs and forceps, etc. The end 520 of chisel 50 abuts the end 65a of drill bit 62 so that the drill 64 can only be inserted until its end is located at the cutting edge 58a.

In FIG. 10, the drill portion 64 is shown approaching its maximum insertion position and as illustrated in FIG. 11, the diameter of the drill 64 is about the same as the narrow dimension of cavity 53 while the dimension is less than the larger dimension of the cavity 53. Thus, more bone portion is located adjacent opposite side 54b than adjacent sides 54a of cavity 53. This remaining bone portion can be removed by slight twisting of the chisel or in other suitable manner in order to leave the two cavities 74 and 75 on the anterior and posterior sides of the intervertebral space as illustrated in FIG. 9.

FIGS. 12a and 12b illustrate the bone plug injector which has an enlarged end 81 for supporting handle 82 and portion 83 contains a central passage 84 connecting with a passage 85 in enlarged end portion 86. Passage 85 connects with a bone plug cavity 87 at the step 88. The end 89 of cavity 87 is tapered outwardly and cavity 87 has internal dimensions identical to those of the bone plug of FIG. 3. Therefore, the internal dimensions of cavity 87 correspond with the exterior dimensions of the mortising chisel 50. A bone plug injector rod 90 comprises a rod 91 with an enlarged injector end portion 92 on one end and a screw cap on the other end, adjacent which is located a coil spring 94. With the screw cap and spring removed, the rod 91 is inserted from the end 89 of the injector through the passage 84 until the enlarged injector end 92 abuts the step 85a of cavity 85. The coil spring is then placed around the rod 91 and the cap 93 is attached so that the coil spring bears against end surface 81a of end 81 and against surface 93a of cap 93. Thereafter, the bone plug is inserted into cavity 87 and the bone plug injector 80 is ready to have its end 89 inserted into either cavity 74, 75, as illustrated in FIG. 14. The end 92a of injector rod 90 is located against the end of the bone plug 32 when in the inserted position of the injector as illustrated in FIG. 15. Since the end exterior of cavity 87 is slightly larger than cavity 75 by the very thin wall, the cavity must be slightly spread to receive the end of the bone injector 80. The end 89 of the bone injector is removed by pulling on the handle 82 with the fingers while holding the cap 93 with the palm of the hand so that the end 92a of the injector rod holds bone plug 32 in the cavity while the bone plug injector is moved outwardly until the bone plug injector is removed from the cavity as illustrated in FIG. 16. Thus, after insertion of a bone plug in each of the cavities 74 and 75, the interbody fusion is completed. The larger cross-section dimension of the bone plug is preferably parallel to the plane of the disc and the length dimension, generally 1 inch, is inserted into the cavity.

As previously mentioned, the bone plug cutters can be produced in standard sizes such as those illustrated in FIG. 17. In all cases, the preferred length of the bone plug is 1 inch and the cross sectional size of the bone plug 32 produced within the cavity 46 can range from 7/16 X 5/16 inch up to /8 X inch as designated in FIG. 17. The phanthom circles in FIG. 17 illustrate the sizes of the cutting drill end 64 which is used with each of the four sets of bone plug cutters.

METHOD OF OPERATION In the operative procedure of the posterior approach interbody fusion (as contrasted with the anterior approach), a midline incision is made long enough to expose the spinous processes, the level above and the level below the pathological interspace. The paravertebral soft tissues are then denuded off the laminae, a total of three levels, one level above and one level below the pathological interspace, followed by inser' tion of a self-retaining retractor. The inferior portion portion 25 of the inferior facet 26 of the upper vertebra 20, and the superior portion 28of the superior facet 29 of the lower vertebra 22 of the pathological disc space are osteotomized and removed at lines 27 and 30, respectively, gaining adequate space to enter through the interlaminar space and proceed deeper anteriorly to perform interbody fusion procedure at the pathological disc level after the nerve root of this particular level is carefully explored and gently retracted toward midline by nerve root retractor or self-retaining never root retractor. Under direct vision, the vertical height of the interspace is assessed using the Penfield probe to explore the intervertebral distance between the inferior vertebral plate of the vertebra above and the superior vertebral plate of the vertebra below at this particular pathological disc space. Also, the lateral x-ray film is viewed to assess the desired dimension of an intervertebral mortising chisel 50 (see FIGS. 6a and 6b) which is to be used. As shown in FIGS. 17 four sets of instruments, with the dimensions shown, have been selected as standard sizes and a different size drill bit 62 is insertable into different size of chisel.

After the proper dimension of the intervertebral mortising chisel 50 is chosen, without the drill bit in place, the operating surgeon will examine the nerve root carefully and retract it toward midline while being held carefully and firmly by the assistant. The surgeon then will hammer the intervertebral mortising chisel through the intervertebral disc space as illustrated in FIG. 8 until the 1 inch stops 57,58 on two faces of the chisel is reached or until the 1% inches marking lines 59 are reached, depending on the clinical assessment of the surgeon on the actual anterior-posterior dimension of the particular patients vertebral body. The surgeon then inserts drill bit 62 shown in FIG. 60 through the hollow cylindrical handle of the intervertebral mortising chisel as shown in FIG. using firm pressure, in rotary fashion, to ream out the intervertebral disc and fibrocartilaginous material within the confine of the rectangular space at the lower 1 or 1% inches portion of the intervertebral mortising chisel as shown in FIG. 11. By means of 90 angle curette, the fibrocartilaginous material at the four sides of the drill point 64 that are not reamed by the round drill point, can be removedby scraping it from the deepest portion anteriorIy towards posterior direction, so that the entire chosen dimension of the intervertebral block is removed (see FIGS. 9 and 14). One can also examine under direct vision with the various angle ring curettes to make certain that all disc, as well as fibrocartilaginous materials are removed down to bleeding cancellous surfaces.- The space provided is then irrigated with saline solution and packed with a sterile, moist gauze.

Exactly identical procedure is carried out with the same chosen intervertebral mortising chisel on the contralateral side of the same disc space, thus creating two rectangular block spaces at the interspace as shown in FIG. 9 (anterior-posterior view). The self-retaining rctractor is then removed and the midline incision is then packed with laparotomy sponge.

By subcutaneous undermining incision through one side of the midline incision, toward the chosen posterior iliac crest where bone graft is to be taken, after the soft tissues are denuded, approximately one-half inch to 1 inch lateral to the sacroiliac joint is'chosen as the donor site. Using the bone plug cutter 40, shown in FIG. 40, without bone plug ejector 48 (FIG. 4b) in place, the bone plug cutter is then hammered through in the direction of the posterior iliac crest to obtain two bone blocks of identical dimensions as that of the chosen intervertebral mortising chisel for grafting purpose. Thereafter, the bone plug ejector is inserted through the bone plug cutter 40 to expel the bone block out of the bone plug cutter. The soft tissue over the posterior iliac crest (the donor site) is then re approximated with 2-0 chromic gut. A typical bone block is illustrated in FIG. 3 after being expelled by ejector 48.

Returning to the midline incision, the self-retaining retractor is then reinserted to expose the pathological disc space once again. One of the bone plugs removed is then placed inside the lower portion of a bone plug injector 80, of the same dimension as the cutter. Holding the bone plug in place, it is' inserted into the intervertebral space previously created by the intervertebral mortising chisel, as illustrated in FIG. 15. By hand'pressure over the top nut 93, of the bone plug injector rod as shown in FIG. 12c and squeezing the cross-bar handle 82 of the bone plug injector, as shown in FIGS. 12a, 13 and 14, the bone plug is thus injected into the interspace as illustrated in FIG. 16. Exact identical procedure is then carried out on the contralateral side until both bone blocks are inserted at the interspace, bilaterally. Using eurved bayonet forceps, the nerve roots on both sides are examined carefully, as well as countersinking both bone blocks individually by a special impactor to drive both bone blocks making sure that both are placed deep enough, at least one-eighth inch or one-fourth inch beyond the posterior boundary of the vertebral bodies of the pathological disc space. With the operative table deflexed, under direct vision, both bone blocks usually are being impacted at the interspace and locked into position requiring no internal fixation. Two polyethylene tubing are inserted andexit through the posterior gluteal region to join up with'the Hemovac for draining purpose. The midline wound is then closed in the usual manner.

The Hemovac is usually removed about 48 hours postoperatively and the patient is instructed to avoid flexion of his hips or spine and to keep his back in extended attitude at all times. The patient is also instructed to turn, back fully extended left or right; otherwise, no special instructions, as compared with usual laminectomy and/or fusion managements. While the invention has been described in connection with a posterior interbody fusion, the apparatus and method can be used in any operation in which a bone block is to be placed in a prepared cavity. As previously stated, the

rectangular block shape of the bone plug will hold the upper and lower verterbrae in a fixed attitude relative to one another and provides better rigidity than a rodshaped plug.

What is claimed is:

l. The method of performing interbody fusion of the spine between an upper and lower vertebra and across a section of the disc comprising the steps of:

producing a parallelpiped shaped cavity in the spine employing a thin walled hollow chisel of rectangular cross section having exterior dimensions corresponding to the desired rectangular cross section of the cavity and the hollow also being of rectangular cross section;

forcing the chisel a desired depth into the spine thereby cutting the sides of the cavity;

inserting a cylindrical drill bit within the hollow of said chisel and drilling out the greater portion of the tissue defined by the hollow of said chisel and then subsequently removing the remainder of said tissue; and

removing the drill bit from said hollow;

inserting into said cavity a bone plug having dimensions equal to the dimensions of said cavity.

2. The method of claim 1 wherein during the drilling out step:

removing the drilled out loose material from the cavity by conducting the material through an opening in the side of the chisel.

3. The method of claim 1 wherein the step of subsequently removing the remainder of tissue from the eavity is accomplished after removal of the chisel from the cavity.

4. The method of claim 1 wherein prior to the step of inserting:

producing a bone plug by removing bone from another location of the body wherein the cross sectional dimensions of the bone plug is identical in size to the cross sectional dimensions of the cavity.

5. The method as defined in claim 1 wherein after the removing step and prior to the inserting step:

enlarging slightly the cross sectional dimensions of the cavity by forcing a tool within the cavity having exterior dimensions slightly greater than the dimensions of the cavity with the tool having an interior hollow substantially equal to the normal cross sectional dimensions of the cavity;

the inserting of the bone plug into the cavity is accomplished by having the bone plug be located within the tool and then removing the tool from the cavity while maintaining the bone plug within the cavity which causes the bone tissue surrounding the cavity to retract to its initial position and in tight contact with the bone plug.

6. A method as defined in claim 1, including producing a second interbody cavity in a second location of said disc, and inserting into said second cavity a second bone plug of the same size and shape as said second cavity. 4:

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US27032 *Feb 7, 1860 Island
US983810 *May 5, 1910Feb 7, 1911Thomas Linsey CrossleyCircular core and disk cutting tool.
US1401469 *Sep 10, 1921Dec 27, 1921Greenlee Bros & CoMortising-tool
US2919692 *Feb 23, 1956Jan 5, 1960Wolfgang AckermannVertebral trephine biopsy instruments
US3512519 *Oct 26, 1967May 19, 1970Hall Robert MAnatomical biopsy sampler
Non-Patent Citations
Reference
1 *Hall, Robert M. (Ed.) Air Instrument Surgery, Vol. I, pp. 160, 161, 178, 179, 183, 192 and 193. Hall Publishing Co., Inc. New York, 1970.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4059115 *Jun 14, 1976Nov 22, 1977Georgy Stepanovich JumashevSurgical instrument for operation of anterior fenestrated spondylodessis in vertebral osteochondrosis
US4573448 *Oct 5, 1983Mar 4, 1986Pilling Co.Method for decompressing herniated intervertebral discs
US4834757 *Mar 28, 1988May 30, 1989Brantigan John WProsthetic implant
US4878915 *Jan 4, 1989Nov 7, 1989Brantigan John WSurgical prosthetic implant facilitating vertebral interbody fusion
US4950296 *Jun 13, 1989Aug 21, 1990Mcintyre Jonathan LBone grafting units
US5015247 *Jun 13, 1988May 14, 1991Michelson Gary KThreaded spinal implant
US5152763 *Apr 2, 1991Oct 6, 1992Johnson Lanny LMethod for grafting bone
US5192327 *Mar 22, 1991Mar 9, 1993Brantigan John WSurgical prosthetic implant for vertebrae
US5242443 *Aug 15, 1991Sep 7, 1993Smith & Nephew Dyonics, Inc.Percutaneous fixation of vertebrae
US5306307 *Jul 22, 1991Apr 26, 1994Calcitek, Inc.Spinal disk implant
US5306309 *May 4, 1992Apr 26, 1994Calcitek, Inc.Spinal disk implant and implantation kit
US5431658 *Feb 14, 1994Jul 11, 1995Moskovich; RonaldFacilitator for vertebrae grafts and prostheses
US5441502 *Feb 17, 1993Aug 15, 1995Mitek Surgical Products, Inc.System and method for re-attaching soft tissue to bone
US5443515 *Jan 26, 1994Aug 22, 1995Implex CorporationVertebral body prosthetic implant with slidably positionable stabilizing member
US5480440 *Jul 7, 1993Jan 2, 1996Smith & Nephew Richards, Inc.Open surgical technique for vertebral fixation with subcutaneous fixators positioned between the skin and the lumbar fascia of a patient
US5484437 *Jun 10, 1993Jan 16, 1996Michelson; Gary K.Apparatus and method of inserting spinal implants
US5489307 *Sep 1, 1994Feb 6, 1996Spine-Tech, Inc.Spinal stabilization surgical method
US5489308 *Sep 1, 1994Feb 6, 1996Spine-Tech, Inc.For insertion into a bone
US5505732 *Jun 7, 1995Apr 9, 1996Michelson; Gary K.Apparatus and method of inserting spinal implants
US5645549 *Apr 24, 1995Jul 8, 1997Danek Medical, Inc.Template for positioning interbody fusion devices
US5683391 *Jun 7, 1995Nov 4, 1997Danek Medical, Inc.Anterior spinal instrumentation and method for implantation and revision
US5700264 *Jul 1, 1996Dec 23, 1997Zucherman; James F.Apparatus and method for preparing a site for an interbody fusion implant
US5700291 *Jun 7, 1995Dec 23, 1997Spine-Tech, Inc.Laparoscopic spinal stabilization method
US5700292 *Sep 15, 1995Dec 23, 1997Hospital For Joint DiseasesSpinal stabilization system and method
US5720748 *Jun 7, 1995Feb 24, 1998Spine-Tech, Inc.Spinal stabilization surgical apparatus
US5722977 *Jan 24, 1996Mar 3, 1998Danek Medical, Inc.Method and means for anterior lumbar exact cut with quadrilateral osteotome and precision guide/spacer
US5741253 *Oct 29, 1992Apr 21, 1998Michelson; Gary KarlinMethod for inserting spinal implants
US5749916 *Jan 21, 1997May 12, 1998Spinal InnovationsFusion implant
US5769781 *Nov 13, 1995Jun 23, 1998Chappuis; James L.Protector retractor
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
US5782830 *Jul 10, 1996Jul 21, 1998Sdgi Holdings, Inc.Implant insertion device
US5782832 *Oct 1, 1996Jul 21, 1998Surgical Dynamics, Inc.Spinal fusion implant and method of insertion thereof
US5782835 *Mar 7, 1995Jul 21, 1998Innovasive Devices, Inc.Surgical assembly
US5782919 *Mar 27, 1995Jul 21, 1998Sdgi Holdings, Inc.Interbody fusion device and method for restoration of normal spinal anatomy
US5785707 *Jul 8, 1997Jul 28, 1998Sdgi Holdings, Inc.Template for positioning interbody fusion devices
US5797909 *Jun 7, 1995Aug 25, 1998Michelson; Gary KarlinApparatus for inserting spinal implants
US5797917 *Feb 12, 1997Aug 25, 1998Sdgi Holdings, Inc.Anterior spinal instrumentation and method for implantation and revision
US5803904 *Oct 28, 1997Sep 8, 1998Mehdizadeh; HamidNerve root retractor and disc space separator
US5814084 *Jan 16, 1996Sep 29, 1998University Of Florida Tissue Bank, Inc.Diaphysial cortical dowel
US5885293 *Mar 3, 1997Mar 23, 1999Innovasive Devices, Inc.Apparatus and method for cutting a surface at a repeatable angle
US5885299 *Mar 14, 1996Mar 23, 1999Surgical Dynamics, Inc.Apparatus and method for implant insertion
US5895426 *Sep 6, 1996Apr 20, 1999Osteotech, Inc.Fusion implant device and method of use
US5895427 *Oct 16, 1996Apr 20, 1999Sulzer Spine-Tech Inc.Method for spinal fixation
US5899908 *Jul 29, 1997May 4, 1999Sulzer Spine-Tech Inc.Spinal drill tube guide
US5904686 *Nov 20, 1997May 18, 1999Zucherman; James F.Apparatus and method for preparing a site for an interbody fusion implant
US5919196 *Jun 30, 1997Jul 6, 1999Arthrex, Inc.Method and apparatus for osteochondral autograft transplantation
US5928242 *Jul 10, 1997Jul 27, 1999Sulzer Spine-Tech Inc.Laparoscopic spinal stabilization method
US5947971 *Nov 21, 1996Sep 7, 1999Sulzer Spine-Tech Inc.Spinal stabilization surgical apparatus
US5968098 *Oct 22, 1996Oct 19, 1999Surgical Dynamics, Inc.Apparatus for fusing adjacent bone structures
US5976187 *Oct 6, 1997Nov 2, 1999Spinal Innovations, L.L.C.Fusion implant
US5984967 *Feb 19, 1996Nov 16, 1999Sdgi Holdings, Inc.Osteogenic fusion devices
US6004326 *Sep 10, 1997Dec 21, 1999United States SurgicalMethod and instrumentation for implant insertion
US6017348 *May 30, 1997Jan 25, 2000Innovasive Devices, Inc.Apparatus and methods for articular cartilage defect repair
US6045580 *Oct 9, 1998Apr 4, 2000Osteotech, Inc.Fusion implant device and method of use
US6063088 *Mar 24, 1997May 16, 2000United States Surgical CorporationMethod and instrumentation for implant insertion
US6066174 *Jul 17, 1998May 23, 2000Sdgi Holdings, Inc.Implant insertion device
US6080155 *Feb 27, 1995Jun 27, 2000Michelson; Gary KarlinMethod of inserting and preloading spinal implants
US6083225 *Jul 8, 1997Jul 4, 2000Surgical Dynamics, Inc.Method and instrumentation for implant insertion
US6086595 *Aug 29, 1997Jul 11, 2000Sulzer Spine-Tech Inc.Apparatus and method for spinal stabilization
US6096038 *Jun 7, 1995Aug 1, 2000Michelson; Gary KarlinApparatus for inserting spinal implants
US6096044 *Jul 7, 1998Aug 1, 2000Sdgi Holdings, Inc.Template assembly for facilitating the placement of interbody fusion devices
US6096081 *Jan 16, 1997Aug 1, 2000University Of Florida Tissue Bank, Inc.Diaphysial cortical dowel
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
US6129763 *Sep 12, 1997Oct 10, 2000Chauvin; Jean-LucExpandable osteosynthesis cage
US6139551 *May 29, 1998Oct 31, 2000Sdgi Holdings, Inc.Anterior spinal instrumentation and method for implantation and revision
US6149650 *May 8, 1998Nov 21, 2000Michelson; Gary KarlinThreaded spinal implant
US6149686 *Oct 16, 1996Nov 21, 2000Sulzer Spine-Tech Inc.Threaded spinal implant with bone ingrowth openings
US6156040 *Jul 30, 1999Dec 5, 2000Sulzer Spine-Tech Inc.Apparatus and method for spinal stablization
US6174311Oct 28, 1998Jan 16, 2001Sdgi Holdings, Inc.Interbody fusion grafts and instrumentation
US6190388Jan 19, 2000Feb 20, 2001Gary K. MichelsonAnterior spinal instrumentation and method for implantation and revision
US6190414Oct 31, 1996Feb 20, 2001Surgical Dynamics Inc.Apparatus for fusion of adjacent bone structures
US6200322Aug 13, 1999Mar 13, 2001Sdgi Holdings, Inc.Minimal exposure posterior spinal interbody instrumentation and technique
US6206922Jan 28, 1998Mar 27, 2001Sdgi Holdings, Inc.Methods and instruments for interbody fusion
US6210412 *Jun 7, 1995Apr 3, 2001Gary Karlin MichelsonMethod for inserting frusto-conical interbody spinal fusion implants
US6224595 *Apr 20, 1998May 1, 2001Sofamor Danek Holdings, Inc.Method for inserting a spinal implant
US6241770Mar 5, 1999Jun 5, 2001Gary K. MichelsonInterbody spinal fusion implant having an anatomically conformed trailing end
US6245072Mar 9, 1999Jun 12, 2001Sdgi Holdings, Inc.Methods and instruments for interbody fusion
US6251140May 26, 1999Jun 26, 2001Nuvasive, Inc.Interlocking spinal inserts
US6258094 *Oct 4, 1999Jul 10, 2001Cortek, Inc.Surgical apparatus driver device
US6264656May 8, 1998Jul 24, 2001Gary Karlin MichelsonThreaded spinal implant
US6267763Mar 31, 1999Jul 31, 2001Surgical Dynamics, Inc.Method and apparatus for spinal implant insertion
US6270498 *Jun 7, 1995Aug 7, 2001Gary Karlin MichelsonApparatus for inserting spinal implants
US6283968 *Mar 7, 2000Sep 4, 2001Hamid M. MehdizadehPosterior laminectomy procedure
US6287343Jul 27, 1999Sep 11, 2001Sulzer Spine-Tech, Inc.Threaded spinal implant with bone ingrowth openings
US6290724May 26, 1999Sep 18, 2001Nuvasive, Inc.Methods for separating and stabilizing adjacent vertebrae
US6302914Mar 10, 1997Oct 16, 2001Gary Karlin MichelsonLordotic interbody spinal fusion implants
US6315795Apr 3, 2000Nov 13, 2001Osteotech, Inc.Fusion implant device and method of use
US6319257Dec 20, 1999Nov 20, 2001Kinamed, Inc.Inserter assembly
US6350283Apr 19, 2000Feb 26, 2002Gary K. MichelsonBone hemi-lumbar interbody spinal implant having an asymmetrical leading end and method of installation thereof
US6368325 *May 26, 1999Apr 9, 2002Nuvasive, Inc.Bone blocks and methods for inserting bone blocks into intervertebral spaces
US6371988Jan 18, 2000Apr 16, 2002Sdgi Holdings, Inc.Bone grafts
US6371989Jun 5, 2000Apr 16, 2002Jean-Luc ChauvinMethod of providing proper vertebral spacing
US6375655Jan 21, 2000Apr 23, 2002Sdgi Holdings, Inc.Interbody fusion device and method for restoration of normal spinal anatomy
US6379385Jan 6, 2000Apr 30, 2002Tutogen Medical GmbhImplant of bone matter
US6391058Oct 21, 1999May 21, 2002Sulzer Spine-Tech Inc.Threaded spinal implant with convex trailing surface
US6423095Feb 20, 1996Jul 23, 2002Sdgi Holdings, Inc.Intervertebral spacers
US6428541Apr 7, 1999Aug 6, 2002Sdgi Holdings, Inc.Method and instrumentation for vertebral interbody fusion
US6436098 *Jan 16, 1996Aug 20, 2002Sofamor Danek Holdings, Inc.Method for inserting spinal implants and for securing a guard to the spine
US6442814Apr 23, 1999Sep 3, 2002Spinal Concepts, Inc.Apparatus for manufacturing a bone dowel
US6443987Sep 15, 2000Sep 3, 2002Donald W. BryanSpinal vertebral implant
US6447512Jan 6, 2000Sep 10, 2002Spinal Concepts, Inc.Instrument and method for implanting an interbody fusion device
US6447544Oct 4, 1999Sep 10, 2002Gary Karlin MichelsonLordotic interbody spinal fusion implants
US6447547Aug 22, 2000Sep 10, 2002Sofamor Danek Group, Inc.Artificial spinal fusion implants
US6471724Feb 5, 2001Oct 29, 2002Sdgi Holdings, Inc.Methods and instruments for interbody fusion
US6478823May 30, 2000Nov 12, 2002Sofamor Danek Holdings, Inc.Artificial spinal fusion implants
US6482233Jan 28, 1999Nov 19, 2002Synthes(U.S.A.)Prosthetic interbody spacer
US6500206Sep 15, 2000Dec 31, 2002Donald W. BryanInstruments for inserting spinal vertebral implant
US6524312Jan 5, 2001Feb 25, 2003Spinal Concepts, Inc.Instrument and method for implanting an interbody fusion device
US6527773Oct 10, 2000Mar 4, 2003Osteotech, Inc.Cervical dowel and insertion tool
US6540753Mar 23, 2001Apr 1, 2003Howmedica Osteonics Corp.Instrumentation for implant insertion
US6554863Jul 6, 2001Apr 29, 2003SynthesIntervertebral allograft spacer
US6557226Aug 6, 1999May 6, 2003Michael E. LandryApparatus for manufacturing a bone dowel
US6562041Nov 21, 2000May 13, 2003Sulzer Spine-Tech Inc.Apparatus and method for spinal stabilization
US6565574Jan 23, 2001May 20, 2003Gary K. MichelsonDistractor for use in spinal surgery
US6575899Oct 20, 2000Jun 10, 2003Sdgi Holdings, Inc.Methods and instruments for endoscopic interbody surgical techniques
US6582432Feb 2, 2000Jun 24, 2003Karlin Technology Inc.Cap for use with artificial spinal fusion implant
US6592588Feb 3, 1999Jul 15, 2003Arthrex, Inc.Apparatus for osteochondral autograft transplantation
US6595995Dec 21, 2000Jul 22, 2003Sdgi Holdings, Inc.Methods and instruments for interbody fusion
US6599291Oct 20, 2000Jul 29, 2003Sdgi Holdings, Inc.Methods and instruments for interbody surgical techniques
US6599320Aug 6, 1999Jul 29, 2003Sulzer Spine-Tech Inc.Alignment guide assembly for spinal stabilization
US6605089Sep 23, 1999Aug 12, 2003Gary Karlin MichelsonApparatus and method for the delivery of electrical current for interbody spinal arthrodesis
US6610065Oct 27, 2000Aug 26, 2003Sdgi Holdings, Inc.Interbody fusion implants and instrumentation
US6613091Feb 11, 2000Sep 2, 2003Sdgi Holdings, Inc.Spinal fusion implants and tools for insertion and revision
US6616671Sep 24, 2001Sep 9, 2003Spinal Concepts, Inc.Instrument and method for implanting an interbody fusion device
US6626905Aug 2, 2000Sep 30, 2003Sulzer Spine-Tech Inc.Posterior oblique lumbar arthrodesis
US6635060Jun 28, 2001Oct 21, 2003Sulzer Spine-Tech Inc.Bone preparation instruments and methods
US6635062Aug 31, 2001Oct 21, 2003Sdgi Holdings, Inc.Methods and instrumentation for vertebral interbody fusion
US6641582Jul 6, 2000Nov 4, 2003Sulzer Spine-Tech Inc.Bone preparation instruments and methods
US6645206Mar 3, 2000Nov 11, 2003Sdgi Holdings, Inc.Interbody fusion device and method for restoration of normal spinal anatomy
US6666890Aug 28, 2001Dec 23, 2003Gary K. MichelsonBone hemi-lumbar interbody spinal implant having an asymmetrical leading end and method of installation thereof
US6695851Aug 7, 2002Feb 24, 2004Sdgi Holdings, Inc.Methods and instruments for interbody fusion
US6733504Nov 16, 2001May 11, 2004Osteotech, Inc.Cervical dowel and insertion tool
US6733535Nov 12, 2002May 11, 2004Sdgi Holdings, Inc.Spinal fusion implant having a trailing end adapted to engage an insertion device
US6749636Apr 2, 2002Jun 15, 2004Gary K. MichelsonContoured spinal fusion implants made of bone or a bone composite material
US6758849Aug 18, 2000Jul 6, 2004Sdgi Holdings, Inc.Interbody spinal fusion implants
US6764491May 15, 2001Jul 20, 2004Sdgi Holdings, Inc.Devices and techniques for a posterior lateral disc space approach
US6770074 *Nov 17, 2001Aug 3, 2004Gary Karlin MichelsonApparatus for use in inserting spinal implants
US6793656 *Mar 6, 2000Sep 21, 2004Sdgi Holdings, Inc.Systems and methods for fixation of adjacent vertebrae
US6821280Aug 3, 2000Nov 23, 2004Charanpreet S. BaggaDistracting and curetting instrument
US6830570Oct 23, 2000Dec 14, 2004Sdgi Holdings, Inc.Devices and techniques for a posterior lateral disc space approach
US6843804Dec 10, 2002Jan 18, 2005Donald W. BryanSpinal vertebral implant and methods of insertion
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
US6890355Apr 2, 2002May 10, 2005Gary K. MichelsonArtificial contoured spinal fusion implants made of a material other than bone
US6899734Mar 23, 2001May 31, 2005Howmedica Osteonics Corp.Modular implant for fusing adjacent bone structure
US6923810Jun 7, 1995Aug 2, 2005Gary Karlin MichelsonFrusto-conical interbody spinal fusion implants
US6923814Oct 29, 2002Aug 2, 2005Nuvasive, Inc.System and methods for cervical spinal fusion
US6929647Feb 21, 2001Aug 16, 2005Howmedica Osteonics Corp.Instrumentation and method for implant insertion
US6979353Dec 3, 2001Dec 27, 2005Howmedica Osteonics Corp.Apparatus for fusing adjacent bone structures
US6986788Apr 9, 2001Jan 17, 2006Synthes (U.S.A.)Intervertebral allograft spacer
US6989031Apr 2, 2002Jan 24, 2006Sdgi Holdings, Inc.Hemi-interbody spinal implant manufactured from a major long bone ring or a bone composite
US7018416Feb 19, 2002Mar 28, 2006Zimmer Spine, Inc.Bone implants and methods
US7022137Dec 16, 2003Apr 4, 2006Sdgi Holdings, Inc.Bone hemi-lumbar interbody spinal fusion implant having an asymmetrical leading end and method of installation thereof
US7033392Aug 2, 2001Apr 25, 2006Zimmer Spine, Inc.Posterior oblique lumbar arthrodesis
US7060073Apr 10, 2002Jun 13, 2006Sdgi Holdings, Inc.Devices and techniques for a posterior lateral disc space approach
US7066961Nov 12, 2002Jun 27, 2006Gary Karlin MichelsonSpinal implant
US7115128 *Oct 15, 2003Oct 3, 2006Sdgi Holdings, Inc.Method for forming through a guard an implantation space in the human spine
US7135026Jul 25, 2003Nov 14, 2006Zimmer Spine, Inc.Laparoscopic spinal stabilization surgical method
US7156875Nov 7, 2003Jan 2, 2007Warsaw Orthopedic, Inc.Arcuate artificial hemi-lumbar interbody spinal fusion implant having an asymmetrical leading end
US7169152Jul 23, 2003Jan 30, 2007Sdgi Holdings, Inc.Methods and instruments for interbody surgical techniques
US7182782Sep 30, 2003Feb 27, 2007X-Spine Systems, Inc.Spinal fusion system and method for fusing spinal bones
US7189242Jun 10, 2002Mar 13, 2007Warsaw Orthopedic, Inc.Method and instrumentation for vertebral interbody fusion
US7207991Mar 18, 2002Apr 24, 2007Warsaw Orthopedic, Inc.Method for the endoscopic correction of spinal disease
US7238186Aug 20, 2003Jul 3, 2007Warsaw Orthopedic, Inc.Interbody fusion device and method for restoration of normal spinal anatomy
US7264622Oct 24, 2003Sep 4, 2007Warsaw Orthopedic, Inc.System for radial bone displacement
US7273498Jan 13, 2004Sep 25, 2007Warsaw Orthopedic, Inc.Open intervertebral spacer
US7276081Nov 23, 1999Oct 2, 2007Warsaw Orthopedic, Inc.Bone grafts
US7285121May 2, 2002Oct 23, 2007Warsaw Orthopedic, Inc.Devices and methods for the correction and treatment of spinal deformities
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
US7300440May 21, 2003Nov 27, 2007Warsaw Orthopedic, Inc.Methods and instruments for interbody fusion
US7300465Jun 10, 2005Nov 27, 2007Synthes (U.S.A.)Intervertebral allograft spacer
US7303584Apr 22, 2005Dec 4, 2007Howmedica Osteonics Corp.Modular implant for fusing adjacent bone structure
US7311734Feb 10, 2004Dec 25, 2007Warsaw Orthopedic, Inc.Intervertebral spacers
US7320688Jun 5, 2003Jan 22, 2008Warsaw Orthopedic, Inc.Methods and instruments for endoscopic interbody surgical techniques
US7326214Aug 9, 2003Feb 5, 2008Warsaw Orthopedic, Inc.Bone cutting device having a cutting edge with a non-extending center
US7329283Mar 30, 2005Feb 12, 2008Warsaw Orthopedic, Inc.Open intervertebral spacer
US7361193Nov 25, 2003Apr 22, 2008Warsaw Orthopedic, Inc.Devices and techniques for a posterior lateral disc space approach
US7387643Nov 7, 2003Jun 17, 2008Warsaw Orthopedic, Inc.Method for installation of artificial hemi-lumbar interbody spinal fusion implant having an asymmetrical leading end
US7399303 *Aug 20, 2002Jul 15, 2008Warsaw Orthopedic, Inc.Bone cutting device and method for use thereof
US7431722 *Jun 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
US7435262Jun 15, 2004Oct 14, 2008Warsaw Orthopedic, Inc.Contoured cortical bone implants
US7452359 *Jun 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
US7455692Mar 24, 2005Nov 25, 2008Warsaw Orthopedic, Inc.Hemi-artificial contoured spinal fusion implants made of a material other than bone
US7462195Apr 19, 2000Dec 9, 2008Warsaw Orthopedic, Inc.Artificial lumbar interbody spinal implant having an asymmetrical leading end
US7479160May 30, 2001Jan 20, 2009Warsaw Orthopedic, Inc.Interbody fusion grafts and instrumentation
US7481812May 26, 2006Jan 27, 2009Warsaw Orthopedic, Inc.Devices and techniques for a posterior lateral disc space approach
US7491168Dec 17, 2004Feb 17, 2009Depuy Spine, Inc.Surgical retractor systems and illuminated cannulae
US7491205 *Jun 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
US7503933Sep 9, 2002Mar 17, 2009Warsaw Orthopedic, Inc.Lordotic interbody spinal fusion implants
US7503936 *Sep 23, 2004Mar 17, 2009Warsaw Orthopedic, Inc.Methods for forming and retaining intervertebral disc implants
US7520900Jul 11, 2005Apr 21, 2009Warsaw Orthopedic, Inc.Intervertebral disc nucleus implants and methods
US7534254Jun 7, 1995May 19, 2009Warsaw Orthopedic, Inc.Threaded frusto-conical interbody spinal fusion implants
US7540882Mar 24, 2005Jun 2, 2009Warsaw Orthopedic, Inc.Artificial spinal fusion implant with asymmetrical leading end
US7544208May 2, 2005Jun 9, 2009Theken Spine, LlcAdjustable corpectomy apparatus
US7550007Feb 23, 2007Jun 23, 2009Biomet Sports Medicine, Llctransplantable cartilage plate plug for repairing a cartilage defect at a recipient site in a host bone; inserting the allograft plug into the bone cutout; less chance of transplant rejection
US7569054Nov 8, 2005Aug 4, 2009Warsaw Orthopedic, Inc.Tubular member having a passage and opposed bone contacting extensions
US7597695Feb 27, 2006Oct 6, 2009Zimmer Spine, Inc.Posterior oblique lumbar arthrodesis
US7608105Jul 20, 2005Oct 27, 2009Howmedica Osteonics Corp.Methods of inserting conically-shaped fusion cages
US7611536Jan 24, 2006Nov 3, 2009Warsaw Orthopedic, Inc.Hemi-interbody spinal fusion implants manufactured from a major long bone ring
US7618423Jun 14, 2003Nov 17, 2009Nuvasive, Inc.System and method for performing spinal fusion
US7618460 *Jun 10, 2004Nov 17, 2009Warsaw Orthopedic, Inc.Reinforced molded implant formed of cortical bone
US7618461Sep 23, 2004Nov 17, 2009Warsaw Orthopedic, Inc.Composite intervertebral disc implants and methods for forming the same
US7621958Jan 22, 2004Nov 24, 2009Warsaw Orthopedic, Inc.Methods and instruments for interbody fusion
US7625374Aug 21, 2003Dec 1, 2009Warsaw Orthopedic, Inc.Interbody fusion grafts and instrumentation
US7637953Oct 31, 2003Dec 29, 2009Warsaw Orthopedic, Inc.Interbody fusion grafts and instrumentation
US7641701Jun 2, 2004Jan 5, 2010X-Spine Systems, Inc.Spinal fusion system and method for fusing spinal bones
US7655028Jan 18, 2007Feb 2, 2010X-Spine Systems, Inc.Spinal fusion system and method for fusing spinal bones
US7662185Aug 28, 2003Feb 16, 2010Osteotech, Inc.Intervertebral implants
US7678149Oct 31, 2003Mar 16, 2010Warsaw Orthopedic, Inc.Open intervertebral spacer
US7682392Oct 30, 2002Mar 23, 2010Depuy Spine, Inc.Regenerative implants for stabilizing the spine and devices for attachment of said implants
US7686805 *Jul 1, 2004Mar 30, 2010Warsaw Orthopedic, Inc.Methods for distraction of a disc space
US7691148Mar 19, 2005Apr 6, 2010Warsaw Orthopedic, Inc.Frusto-conical spinal implant
US7708778May 20, 2005May 4, 2010Flexuspine, Inc.Expandable articulating intervertebral implant with cam
US7722619Apr 25, 2006May 25, 2010Warsaw Orthopedic, Inc.Method of maintaining distraction of a spinal disc space
US7722621Jul 19, 2006May 25, 2010Zimmer Spine, Inc.Laparoscopic spinal stabilization surgical method
US7726002Oct 13, 2004Jun 1, 2010Osteotech, Inc.Processes for making spinal intervertebral implant, interconnections for such implant
US7753911Oct 20, 2003Jul 13, 2010Warsaw Orthopedic, Inc.Methods and instrumentation for vertebral interbody fusion
US7753958Feb 3, 2005Jul 13, 2010Gordon Charles RExpandable intervertebral implant
US7758501Jun 29, 2006Jul 20, 2010Depuy Spine, Inc.Surgical reactors and methods of minimally invasive surgery
US7771432Oct 7, 2003Aug 10, 2010Warsaw Orthopedic, Inc.Insertion device and techniques for orthopaedic implants
US7776046Jan 5, 2006Aug 17, 2010Warsaw Orthopedic, Inc.Method and instrumentation for vertebral interbody fusion
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
US7780676Jul 10, 2007Aug 24, 2010Ebi, LlcIntervertebral implantation apparatus
US7780708Jan 31, 2005Aug 24, 2010Osteotech, Inc.Implant retaining device
US7785351Mar 8, 2006Aug 31, 2010Flexuspine, Inc.Artificial functional spinal implant unit system and method for use
US7789914Aug 26, 2004Sep 7, 2010Warsaw Orthopedic, Inc.Implant having arcuate upper and lower bearing surfaces along a longitudinal axis
US7794480Mar 8, 2006Sep 14, 2010Flexuspine, Inc.Artificial functional spinal unit system and method for use
US7799082Mar 8, 2006Sep 21, 2010Flexuspine, Inc.Artificial functional spinal unit system and method for use
US7803161Dec 20, 2006Sep 28, 2010Warsaw Orthopedic, Inc.Methods and instruments for interbody surgical techniques
US7828800May 18, 2009Nov 9, 2010Warsaw Orthopedic, Inc.Threaded frusto-conical interbody spinal fusion implants
US7828848Apr 16, 2002Nov 9, 2010Wenzel Spine, Inc.Expandable osteosynthesis cage
US7837713Mar 13, 2009Nov 23, 2010Minsurg International, Inc.Methods and surgical kits for minimally-invasive facet joint fusion
US7837732Nov 19, 2004Nov 23, 2010Warsaw Orthopedic, Inc.Intervertebral body fusion cage with keels and implantation methods
US7857818Mar 30, 2007Dec 28, 2010Warsaw Orthopedic, Inc.Method and apparatus for delivering an intervertebral disc implant
US7879038Oct 30, 2007Feb 1, 2011Kyphon SarlApparatus, kits, and methods for creating cavities in cancellous bone using an elongated loop structure or bristles
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
US7909827Apr 24, 2007Mar 22, 2011Kyphon SarlSystems and methods for creating cavities in interior body regions
US7909869Feb 12, 2004Mar 22, 2011Flexuspine, Inc.Artificial spinal unit assemblies
US7914530Apr 25, 2006Mar 29, 2011Warsaw Orthopedic, Inc.Tissue dilator and method for performing a spinal procedure
US7914582Dec 10, 2007Mar 29, 2011Vertebral Technologies, Inc.Method and system for mammalian joint resurfacing
US7918792Jan 4, 2006Apr 5, 2011Depuy Spine, Inc.Surgical retractor for use with minimally invasive spinal stabilization systems and methods of minimally invasive surgery
US7918876Mar 24, 2004Apr 5, 2011Theken Spine, LlcSpinal implant adjustment device
US7918891Mar 29, 2005Apr 5, 2011Nuvasive Inc.Systems and methods for spinal fusion
US7935116Nov 25, 2008May 3, 2011Gary Karlin MichelsonImplant for the delivery of electrical current to promote bone growth between adjacent bone masses
US7935124Aug 7, 2003May 3, 2011Warsaw Orthopedic, Inc.Devices and techniques for a posterior lateral disc space approach
US7935148Jan 9, 2006May 3, 2011Warsaw Orthopedic, Inc.Adjustable insertion device for a vertebral implant
US7935149Jun 2, 2009May 3, 2011Warsaw Orthopedic, Inc.Spinal fusion implant with bone screws
US7942933Apr 3, 2010May 17, 2011Warsaw Orthopedic, Inc.Frusto-conical spinal implant
US7951154May 7, 2010May 31, 2011Warsaw Orthopedic, Inc.Insertion device and techniques for orthopaedic implants
US7955257Sep 29, 2006Jun 7, 2011Depuy Spine, Inc.Non-rigid surgical retractor
US7959677 *Jan 19, 2007Jun 14, 2011Flexuspine, Inc.Artificial functional spinal unit system and method for use
US7963982Jul 16, 2007Jun 21, 2011X-Spine Systems, Inc.Implant plate screw locking system and screw having a locking member
US7967863Dec 12, 2008Jun 28, 2011Warsaw Orthopedic, Inc.Devices and techniques for a posterior lateral disc space approach
US7981031Jan 4, 2006Jul 19, 2011Depuy Spine, Inc.Surgical access devices and methods of minimally invasive surgery
US7981156Feb 18, 2004Jul 19, 2011Warsaw Orthopedic, Inc.Bone grafts
US7985258Nov 13, 2009Jul 26, 2011Warsaw Orthopedic Inc.Methods and instruments for interbody fusion
US7988693Jul 11, 2003Aug 2, 2011Warsaw Orthopedic, Inc.Chisels and procedure for insertion of spinal implant in a spinal disc space
US7988699Oct 19, 2005Aug 2, 2011Warsaw Orthopedic, Inc.Adjustable instrumentation for spinal implant insertion
US7993347Jul 27, 2000Aug 9, 2011Warsaw Orthopedic, Inc.Guard for use in performing human interbody spinal surgery
US7993406Mar 1, 2010Aug 9, 2011Warsaw Orthopedic, Inc.Open intervertebral spacer
US7998209Oct 5, 2009Aug 16, 2011Warsaw Orthopedic, IncInterbody fusion grafts and instrumentation
US7998215Dec 12, 2008Aug 16, 2011Warsaw Orthopedic, Inc.Devices and techniques for a posterior lateral disc space approach
US8021392 *Sep 25, 2008Sep 20, 2011Minsurg International, Inc.Methods and surgical kits for minimally-invasive facet joint fusion
US8021430Sep 7, 2010Sep 20, 2011Warsaw Orthopedic, Inc.Anatomic spinal implant having anatomic bearing surfaces
US8038611Dec 17, 2004Oct 18, 2011Depuy Spine, Inc.Surgical methods and surgical kits
US8038718Jul 19, 2006Oct 18, 2011Vertebral Technologies, Inc.Multi-composite disc prosthesis
US8043377Sep 2, 2006Oct 25, 2011Osprey Biomedical, Inc.Implantable intervertebral fusion device
US8052723Mar 8, 2006Nov 8, 2011Flexuspine Inc.Dynamic posterior stabilization systems and methods of use
US8062367Jan 12, 2007Nov 22, 2011X-Spine Systems, Inc.Screw locking mechanism and method
US8066705 *Feb 21, 2003Nov 29, 2011Warsaw Orthopedic, Inc.Instrumentation for the endoscopic correction of spinal disease
US8066750Oct 6, 2006Nov 29, 2011Warsaw Orthopedic, IncPort structures for non-rigid bone plates
US8075622Dec 21, 2007Dec 13, 2011Warsaw Orthopedic, IncIntervertebral spacers
US8100955Mar 13, 2006Jan 24, 2012Spinal Elements, Inc.Orthopedic expansion fastener
US8100977Sep 10, 2007Jan 24, 2012Vertebral Technologies, Inc.Interlocked modular disc nucleus prosthesis
US8100979Jun 5, 2009Jan 24, 2012Vertebral Technologies, Inc.Method and system for mammalian joint resurfacing
US8118869Mar 8, 2006Feb 21, 2012Flexuspine, Inc.Dynamic interbody device
US8118870May 20, 2005Feb 21, 2012Flexuspine, Inc.Expandable articulating intervertebral implant with spacer
US8118871May 20, 2005Feb 21, 2012Flexuspine, Inc.Expandable articulating intervertebral implant
US8123810May 20, 2005Feb 28, 2012Gordon Charles RExpandable intervertebral implant with wedged expansion member
US8137403Oct 2, 2009Mar 20, 2012Warsaw Orthopedic, Inc.Hemi-interbody spinal fusion implants manufactured from a major long bone ring
US8142438Aug 26, 2010Mar 27, 2012Warsaw Orthopedic, Inc.Methods and instruments for interbody surgical techniques
US8147550May 20, 2005Apr 3, 2012Flexuspine, Inc.Expandable articulating intervertebral implant with limited articulation
US8157844Oct 22, 2007Apr 17, 2012Flexuspine, Inc.Dampener system for a posterior stabilization system with a variable length elongated member
US8162967Oct 16, 2003Apr 24, 2012Biomet Sports Medicine LlcMethod and apparatus for coring and reaming of bone
US8162981May 22, 2008Apr 24, 2012Vg Innovations, LlcMethod and apparatus for spinal facet fusion
US8162994Oct 22, 2007Apr 24, 2012Flexuspine, Inc.Posterior stabilization system with isolated, dual dampener systems
US8172853May 6, 2003May 8, 2012Warsaw Orthopedic, Inc.Instrumentation for creating an intervertebral space for receiving an implant
US8172903May 20, 2005May 8, 2012Gordon Charles RExpandable intervertebral implant with spacer
US8182514Oct 22, 2007May 22, 2012Flexuspine, Inc.Dampener system for a posterior stabilization system with a fixed length elongated member
US8187330Oct 22, 2007May 29, 2012Flexuspine, Inc.Dampener system for a posterior stabilization system with a variable length elongated member
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
US8216316Dec 17, 2008Jul 10, 2012X-Spine Systems, Inc.Prosthetic implant with biplanar angulation and compound angles
US8226652Nov 14, 2011Jul 24, 2012Warsaw Orthopedic, Inc.Threaded frusto-conical spinal implants
US8246686 *Apr 5, 2012Aug 21, 2012Nuvasive, Inc.Systems and methods for spinal fusion
US8251997 *Nov 29, 2011Aug 28, 2012Warsaw Orthopedic, Inc.Method for inserting an artificial implant between two adjacent vertebrae along a coronal plane
US8257440May 20, 2005Sep 4, 2012Gordon Charles RMethod of insertion of an expandable intervertebral implant
US8267965Oct 22, 2007Sep 18, 2012Flexuspine, Inc.Spinal stabilization systems with dynamic interbody devices
US8282682Dec 17, 2009Oct 9, 2012X-Spine Systems, Inc.Fusion system and method for fusing spinal bones
US8287597Apr 16, 2010Oct 16, 2012Nuvasive, Inc.Method and apparatus for performing spine surgery
US8291572Jan 19, 2010Oct 23, 2012Rti Biologics, Inc.Multi-component cortical bone assembled implant
US8292957Apr 3, 2006Oct 23, 2012Warsaw Orthopedic, Inc.Bone hemi-lumbar arcuate interbody spinal fusion implant having an asymmetrical leading end
US8303592Oct 5, 2007Nov 6, 2012Biomet Manufacturing Corp.System for forming a tendon-bone graft
US8308803Jan 22, 2008Nov 13, 2012Warsaw Orthopedic, Inc.Methods and instruments for endoscopic interbody surgical techniques
US8322256May 6, 2009Dec 4, 2012Biomet Manufacturing Corp.System for forming a tendon-bone graft
US8323340Dec 9, 2008Dec 4, 2012Warsaw Orthopedic, Inc.Artificial hemi-lumbar interbody spinal implant having an asymmetrical leading end
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
US8337559Jun 1, 2010Dec 25, 2012Globus Medical, Inc.Expandable vertebral prosthesis
US8343220Feb 3, 2010Jan 1, 2013Warsaw Orthopedic, Inc.Nested interbody spinal fusion implants
US8353909Apr 25, 2006Jan 15, 2013Warsaw Orthopedic, Inc.Surgical instrument for distracting a spinal disc space
US8361156 *Apr 6, 2012Jan 29, 2013Nuvasive, Inc.Systems and methods for spinal fusion
US8372152Jul 16, 2007Feb 12, 2013X-Spine Systems, Inc.Spinal fusion system utilizing an implant plate having at least one integral lock and ratchet lock
US8372157Feb 11, 2008Feb 12, 2013Warsaw Orthopedic, Inc.Joint revision implant
US8377098Jan 19, 2007Feb 19, 2013Flexuspine, Inc.Artificial functional spinal unit system and method for use
US8382767Nov 2, 2009Feb 26, 2013K2M, Inc.Implant insertion tool
US8409292May 17, 2011Apr 2, 2013Warsaw Orthopedic, Inc.Spinal fusion implant
US8435299Sep 21, 2010May 7, 2013Wenzel Spine, Inc.Expandable osteosynthesis cage
US8435305Aug 31, 2010May 7, 2013Zimmer, Inc.Osteochondral graft delivery device and uses thereof
US8444696Sep 19, 2011May 21, 2013Warsaw Orthopedic, Inc.Anatomic spinal implant having anatomic bearing surfaces
US8460384Oct 31, 2007Jun 11, 2013Nuvasive, Inc.Stackable spinal support system
US8465491 *Apr 20, 2007Jun 18, 2013Osteo Innovations LlcBone drill
US8470039Mar 13, 2006Jun 25, 2013Spinal Elements, Inc.Flanged interbody fusion device with fastener insert and retaining ring
US8475496Oct 31, 2007Jul 2, 2013Nuvasive, Inc.Stackable spinal support system
US8491653Oct 4, 2010Jul 23, 2013Warsaw Orthopedic, Inc.Intervertebral body fusion cage with keels and implantation methods
US8491654Jul 14, 2011Jul 23, 2013Warsaw Orthopedic Inc.Devices and techniques for a posterior lateral disc space approach
US8496691Mar 13, 2006Jul 30, 2013Spinal Elements, Inc.Side-biased orthopedic fastener retention
US8496708Mar 13, 2006Jul 30, 2013Spinal Elements, Inc.Flanged interbody fusion device with hinge
US8506636Jun 25, 2007Aug 13, 2013Theken Spine, LlcOffset radius lordosis
US8517935Jul 1, 2010Aug 27, 2013DePuy Synthes Products, LLCSurgical retractors and methods of minimally invasive surgery
US8523864Feb 23, 2007Sep 3, 2013Biomet Sports Medicine, LlcInstrumentation for the preparation and transplantation of osteochondral allografts
US8523912Oct 22, 2007Sep 3, 2013Flexuspine, Inc.Posterior stabilization systems with shared, dual dampener systems
US8550995Jun 17, 2011Oct 8, 2013DePuy Synthes Products, LLCSurgical access devices and methods of minimally invasive surgery
US8574301Jan 24, 2013Nov 5, 2013Nuvasive, Inc.Systems and methods for spinal fusion
US8597358Jan 19, 2007Dec 3, 2013Flexuspine, Inc.Dynamic interbody devices
US8602984Sep 30, 2008Dec 10, 2013DePuy Synthes Products, LLCSurgical retractor systems and illuminated cannulae
US8603168Mar 8, 2006Dec 10, 2013Flexuspine, Inc.Artificial functional spinal unit system and method for use
US8608804Jan 23, 2013Dec 17, 2013Nuvasive, Inc.Systems and methods for spinal fusion
US8622897Aug 30, 2011Jan 7, 2014DePuy Synthes Products, LLCSurgical methods and surgical kits
US8623088Dec 5, 2008Jan 7, 2014Nuvasive, Inc.Spinal fusion implant and related methods
US8641718Oct 19, 2010Feb 4, 2014Biomet Manufacturing, LlcMethod and apparatus for harvesting cartilage for treatment of a cartilage defect
US8647386Jul 22, 2010Feb 11, 2014Charles R. GordonExpandable intervertebral implant system and method
US8672980Aug 24, 2010Mar 18, 2014Warsaw Orthopedic, Inc.Implant retaining device
US8673004Sep 30, 2003Mar 18, 2014Warsaw Orthopedic, Inc.Method for inserting an interbody spinal fusion implant having an anatomically conformed trailing end
US8673005Mar 7, 2008Mar 18, 2014Nuvasive, Inc.System and methods for spinal fusion
US8679118Jul 23, 2012Mar 25, 2014Warsaw Orthopedic, Inc.Spinal implants
US8685105Oct 29, 2013Apr 1, 2014Nuvasive, Inc.Systems and methods for spinal fusion
US8696721Dec 21, 2011Apr 15, 2014Spinal Elements, Inc.Orthopedic expansion fastener
US8721722Dec 6, 2006May 13, 2014Ebi, LlcIntervertebral implant and associated method
US8721723Jan 12, 2009May 13, 2014Globus Medical, Inc.Expandable vertebral prosthesis
US8728130Jun 8, 2011May 20, 2014X-Spine Systems, Inc.Implant plate screw locking system and screw having a locking member
US8734447 *Jun 27, 2000May 27, 2014Warsaw Orthopedic, Inc.Apparatus and method of inserting spinal implants
US8734493Sep 14, 2011May 27, 2014X-Spine Systems, Inc.Screw locking mechanism and method
US8747476Mar 23, 2012Jun 10, 2014Nuvasive, Inc.Spinal implant system
US8753398May 20, 2005Jun 17, 2014Charles R. GordonMethod of inserting an expandable intervertebral implant without overdistraction
US8753406Apr 2, 2013Jun 17, 2014Zimmer Inc.Osteochondral graft delivery device and uses thereof
US8758344Aug 28, 2012Jun 24, 2014Warsaw Orthopedic, Inc.Spinal implant and instruments
US8790407Apr 16, 2013Jul 29, 2014Liliane AttaliExpandable osteosynthesis cage
US8795370Aug 7, 2012Aug 5, 2014X-Spine Systems, Inc.Fusion system and method for fusing spinal bones
US8801725Mar 10, 2008Aug 12, 2014Zimmer Orthobiologics, Inc.Instruments and methods used when repairing a defect on a tissue surface
US8801794May 23, 2013Aug 12, 2014Spinal Elements, Inc.Flanged interbody fusion device with fastener insert and retaining ring
US20080255564 *Feb 1, 2008Oct 16, 2008Karlin Technology, Inc.Bone cutting device
US20120071984 *Nov 29, 2011Mar 22, 2012Michelson Gary KMethod for inserting an artificial implant between two adjacent vertebrae along a coronal plane
US20120209388 *Apr 6, 2012Aug 16, 2012Nuvasive, Inc.Systems and Methods for Spinal Fusion
US20130030535 *Oct 2, 2012Jan 31, 2013Warsaw Orthopedic, Inc.Methods and instruments for endoscopic interbody surgical techniques
US20130253652 *May 20, 2013Sep 26, 2013Warsaw Orthopedic, Inc.Spinal implant
USRE37005 *Jan 19, 2000Dec 26, 2000Sdgi Holdings, Inc.Anterior spinal instrumentation and method for implantation and revision
USRE37161 *Jan 20, 2000May 1, 2001Gary Karlin MichelsonAnterior spinal instrumentation and method for implantation and revision
USRE38614Aug 22, 2002Oct 5, 2004Synthes (U.S.A.)Intervertebral allograft spacer
USRE42863 *Oct 4, 2001Oct 25, 2011Zimmer Spine, Inc.Spinal stabilization surgical method
EP0703757A1 *Jun 9, 1994Apr 3, 1996Karlin Technology, Inc.Apparatus and method of inserting spinal implants
EP0712607A2 *Jun 13, 1989May 22, 1996MICHELSON, Gary KarlinApparatus for use in spinal surgery
EP0824893A2 *Aug 8, 1997Feb 25, 1998Arthrex IncApparatus for osteochondral autograft transplantation
EP1093760A2 *Jun 9, 1994Apr 25, 2001Karlin Technology, Inc.Spinal distractor
EP1410770A1 *Jun 3, 1998Apr 21, 2004SDGI Holdings, Inc.Open intervertebral spacer
EP1488755A1 *Feb 26, 1996Dec 22, 2004MICHELSON, Gary KarlinTranslateral spinal distractor
EP1764066A1 *Aug 27, 1998Mar 21, 2007Regeneration Technologies, Inc.Cortical bone cervical Smith-Robinson fusion implant
WO1989009035A1 *Mar 10, 1989Oct 5, 1989John W BrantiganSurgical prosthetic implant facilitating vertebral interbody fusion
WO1991006261A1 *Sep 18, 1990May 16, 1991Surgical Dynamics IncSurgical method and apparatus for fusing adjacent bone structures
WO1991016016A1 *Apr 11, 1991Oct 31, 1991BiotecnicHip prosthesis tail designed for cement-free implantation, and device therefor
WO1996014809A1 *Nov 15, 1995May 23, 1996Atlas ImplantsImplant for the fusion of two adjacent bony bodies, particularly two consecutive vertebrae
WO1996027321A2 *Feb 26, 1996Sep 12, 1996Michelson Gary KImproved methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine
WO1996027333A1 *Feb 8, 1996Sep 12, 1996Innovasive Devices IncApparatus and methods for articular cartilage defect repair
WO1996027345A2 *Feb 26, 1996Sep 12, 1996Michelson Gary KAppartus and method of inserting spinal implants
WO1997025945A1 *Jan 16, 1997Jul 24, 1997Univ Florida Tissue Bank IncDiaphysial cortical dowel
WO1998055052A1 *Jun 3, 1998Dec 10, 1998Sdgi Holdings IncOpen intervertebral spacer
WO1999009914A1 *Aug 27, 1998Mar 4, 1999Kevin C CarterCortical bone cervical smith-robinson fusion implant
WO1999021485A1 *Oct 7, 1998May 6, 1999Hamid MehdizadehNerve root retractor and disc space separator
WO1999056676A1 *May 6, 1999Nov 11, 1999Cortek IncApparatus and method for spinal fusion using implanted devices
WO2004008976A1Jul 11, 2003Jan 29, 2004Osteotech IncChisels and procedure for insertion of spinal implant in a spinal disc space
Classifications
U.S. Classification606/86.00A, 408/68, 606/279, 408/30, 606/80
International ClassificationA61F2/46, A61B17/34, A61B17/16, A61F2/28, A61F2/00, A61F2/44
Cooperative ClassificationA61F2/4601, A61F2/447, A61B17/1671, A61F2002/448, A61F2002/2839, A61F2002/30261, A61F2/442, A61F2002/4649, A61F2002/4627, A61B17/1604, A61F2/4611, A61F2230/0082, A61B17/3401
European ClassificationA61B17/16S4, A61F2/44F6, A61F2/46A, A61B17/16C, A61F2/46B7, A61B17/34B