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US5722977: Method and means for anterior lumbar exact cut with quadrilateral osteotome and precision guide/spacer

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Filing Information

Inventor(s) John K. Wilhelmy ·
Assignee(s) Danek Medical, Inc. ·
Attorney/Agent(s) John J. Leavitt ·
Primary Examiner Michael Buiz ·
Assistant Examiner David O. Reip ·
Application Number US8590612
Filing date 01/24/1996
Issue date 03/03/1998
Predicted expiration date 01/24/2016
U.S. Classifications 606/84  · 606/61  ·
International Classifications A61B 1716  ·
Kind CodeA
International Classifications 60679;84;87 ·
16 Claims, No Drawings


Abstract

Presented is a method and instrumentation for removal of a pair of rectangular blocks of vertebral bone tissue of predetermined and precise dimensions to provide an intervertebral recess, with guarded depth for safety, achieving and maintaining the desired intervertebral space, as well as obtaining and injecting into the intervertebral recess a well-fitted bone plug of the same dimension as the recess that receives it. Two cooperating instruments are utilized in the invention, one being an intervertebral mortising cutter and the other a precision guide and spacer. The guide and spacer functions dually to retain the associated adjacent vertebrae at a precise selected and predetermined spacing and to guide penetration of the mortising cutter. Following advancement of the mortising cutter into the bone tissue of the two adjacent vertebrae, the instruments, along with the blocks of bone tissue, are removed from the site to produce a precisely configured recess. The mortising cutter is then used to harvest a bone plug from a suitable donor site, with the bone plug being subsequently inserted into the prepared vertebral recess to thus promote fusion between the bone plug and the associated surfaces of the vertebrae.

Independent Claims | See all claims (16)

  1. 1. In combination, a non-rotatable precision guide and spacer means adapted to be driven progressively into an intervertebral space between two juxtaposed vertebrae of a spine to selectively progressively increase the spacing between opposed surfaces of said juxtaposed vertebrae a predetermined amount, and a quadrilateral tubular osteotome surrounding a portion of said precision guide and spacer means and manipulable to simultaneously cut opposed recesses in the juxtaposed spaced vertebrae while spanning the intervertebral space therebetween.
  2. 4. A precision guide and spacer instrument for use in separating a pair of juxtaposed vertebrae and for guiding the penetration of an osteotome into said vertebrae to form opposed recesses therein, comprising:a) a head including a portion adapted to be driven between said pair of juxtaposed vertebrae:b) a posterior base portion integral with said head and forming a flange thereabout adapted to abut associated surfaces of said vertebrae to limit penetration of said head portion between said pair of juxtaposed vertebrae: andc) a handle secured to said head and extending posteriorly therefrom and adapted to be impacted to drive said head between said vertebrae.
  3. 8. The method of forming opposed recesses of equal size and configuration in the opposed inferior and superior surfaces of a pair of juxtaposed vertebrae, comprising the steps of:a) surgically exposing the anterior surfaces of a pair of juxtaposed vertebrae:b) driving a precision guide and spacer instrument anteriorly into the intervertebral space between said inferior and superior surfaces of said juxtaposed vertebrae to separate said vertebrae a predetermined amount:c) abutting a guide portion of said precision guide and spacer instrument against the anterior surfaces of said spaced vertebrae whereby said guide portion equally overlaps anterior surface portions of said spaced vertebrae:d) superimposing a quadrilateral tubular osteotome circumscribingly about the guide portion of said precision guide and spacer instrument in abutting relation to the anterior surfaces of said spaced vertebrae so that said tubular osteotome overlaps equal anterior portions of said spaced vertebrae:e) driving said tubular osteotome into said anterior surfaces of said spaced vertebrae to a predetermined depth to cut away equal portions of said inferior and superior surfaces from said spaced vertebrae on opposite sides of said intervertebral space to thereby define said opposed recesses: andf) subsequently extracting said precision guide and spacer instrument, said tubular osteotome and said cut away equal portions of said juxtaposed vertebrae to thereby form said opposed recesses of equal size and configuration.
  4. 10. In combination, a precision guide and spacer means adapted to be driven into an intervertebral space between two juxtaposed vertebrae of a spine to selectively space opposed surfaces of said juxtaposed vertebrae a predetermined amount, and a quadrilateral tubular osteotome surrounding a portion of said precision guide and spacer means and manipulable to simultaneously cut opposed recesses in the juxtaposed vertebrae while spanning the intervertebral space therebetween, said precision guide and spacer means including a posterior base portion and a tapered wedge portion.
  5. 13. In combination, a non-rotatable precision guide and spacer means adapted to be driven into an intervertebral space between two juxtaposed vertebrae of a spine to selectively space opposed surfaces of said juxtaposed vertebrae a predetermined amount, and a quadrilateral tubular osteotome surrounding a portion of said precision guide and spacer means and manipulable to simultaneously cut opposed recesses in the juxtaposed vertebrae while spanning the intervertebral space therebetween, said precision guide and spacer means including guide means for guiding the penetration of said osteotome into said vertebrae and including a quadrilateral base portion having an exterior periphery dimensioned to be slidably circumscribed by said quadrilateral tubular osteotome.
  6. 14. In combination, a precision guide and spacer means adapted to be driven into an intervertebral space between two juxtaposed vertebrae of a spine to selectively space opposed surfaces of said juxtaposed vertebrae a predetermined amount, and a quadrilateral tubular osteotome surrounding a portion of said precision guide and spacer means and manipulable to simultaneously cut opposed recesses in the juxtaposed vertebrae while spanning the intervertebral space therebetween, said quadrilateral tubular osteotome being open at one end and closed at its other end, said open end having edges sharpened sufficiently to penetrate bone tissue when driven thereagainst and being spaced a predetermined distance from said closed end, said precision guide and spacer means comprising an instrument having a head shorter by a predetermined distance than the distance between said open and closed ends of said osteotome, whereby the difference in length of said precision guide spacer means compared to said osteotome constitutes the depth to which said osteotome will penetrate said vertebrae when driven thereagainst.
  7. 15. In combination, a non-rotatable precision guide and spacer means adapted to be driven into an intervertebral space between two juxtaposed vertebrae of a spine to selectively space opposed surfaces of said juxtaposed vertebrae a predetermined amount, and a quadrilateral tubular osteotome surrounding a portion of said precision guide and spacer means and manipulable to simultaneously cut opposed recesses in the juxtaposed vertebrae while spanning the intervertebral space therebetween, said precision guide and spacer means including guide means for guiding the penetration of said osteotome into said vertebrae, and including stop means controlling the maximum depth to which said precision guide and spacer means penetrates said intervertebral space.
  8. 16.16. In combination, a non-rotatable precision guide and spacer means adapted to be driven into an intervertebral space between two juxtaposed vertebrae of a spine to selectively space opposed surfaces of said juxtaposed vertebrae a predetermined amount, and a quadrilateral tubular osteotome surrounding a portion of said precision guide and spacer means and manipulable to simultaneously cut opposed recesses in the juxtaposed vertebrae while spanning the intervertebral space therebetween, said precision guide and spacer means including guide means for guiding the penetration of said osteotome into said vertebrae, and including stop means controlling the maximum depth to which said osteotome penetrates said vertebrae when driven thereagainst.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US1279495 Dom Sep 1918
US1401469 GREENLEE BROS & CO Hawkinson Dec 1921
US3683892 BATTELLE DEVELOPMENT CORP Harris Aug 1972
US3848601 MA G Ma et al. Nov 1974
US5423825 Levine Jun 1995

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
AU771553 SDGI HOLDINGS INC MCGAHAN THOMAS V et al. Mar 2004
EP1308132 DePuy Spine, Inc. Christopher Rogers et al. Dec 2006
EP1466562 SDGI Holdings, Inc. Kevin T. Foley et al. Oct 2004
EP1220642 SDGI Holdings, Inc. Thomas V. MCGAHAN et al. Dec 2005
EP1217961 Warsaw Orthopedic, Inc. Gary Karlin Michelson Apr 2010
EP1076536 Cortek, Inc. James E. NICHOLSON et al. Nov 2005
USD450844 Zimmer, Inc. Randall J. Lewis Nov 2001
US5935133 Spinal Concepts, Inc. Erik J. Wagner et al. Aug 1999
US6143033 Synthes (USA) David C. Paul et al. Nov 2000
US6030389 Spinal Concepts, Inc. Erik J. Wagner et al. Feb 2000
US5964769 Spinal Concepts, Inc. Erik J. Wagner et al. Oct 1999
US5928243 Spinal Concepts, Inc. Richard D. Guyer Jul 1999
US6241733 Cortek, Inc. James E. Nicholson et al. Jun 2001
US6080193 Spinal Concepts, Inc. Stephen H. Hochshuler et al. Jun 2000
US6224599 Matthew G. Baynham et al. May 2001
US6045579 Spinal Concepts, Inc. Stephen H. Hochshuler et al. Apr 2000
US6241729 SDGI Holdings, Inc. Bradley T. Estes et al. Jun 2001
US6258125 Synthes (U.S.A.) David C. Paul et al. Jul 2001
US5989250 Spinal Concepts, Inc. Erik J. Wagner et al. Nov 1999
US5904686 James F. Zucherman et al. May 1999
US6132430 Spinal Concepts, Inc. Erik J. Wagner Oct 2000
US6126664 Synthes (USA) Thomas N. Troxell et al. Oct 2000
US6053921 Spinal Concepts, Inc. Erik J. Wagner et al. Apr 2000
US6267763 Surgical Dynamics, Inc. Salvatore Castro Jul 2001
US6042582 Charles D. Ray Mar 2000
US6258094 Cortek, Inc. James E. Nicholson et al. Jul 2001
US6626905 Sulzer Spine-Tech Inc. Daniel G. Schmiel et al. Sep 2003
US6436101 James S. Hamada Aug 2002
US6579318 Ortho Development Corporation Peter Pal Varga et al. Jun 2003
US6767369 Synthes (USA) Michael L. Boyer, II et al. Jul 2004
US7011664 Zimmer Technology, Inc. Mark D. Haney et al. Mar 2006
US7153303 SDGI Holdings, Inc. Craig M. Squires et al. Dec 2006
US7166107 D. Greg Anderson D. Greg Anderson Jan 2007
US7179262 SDGI Holdings, Inc. Vincent Bryan et al. Feb 2007
USRE38614 Synthes (U.S.A.) David C. Paul et al. Oct 2004
US7618461 Warsaw Orthopedic, Inc. Hai H. Trieu Nov 2009
US6428541 SDGI Holdings, Inc. Lawrence M. Boyd et al. Aug 2002
US6511509 LifeNet Louis Ford et al. Jan 2003
US6524318 Sulzer Spine-Tech Inc. Ross Longhini et al. Feb 2003
US6575899 SDGI Holdings, Inc. Kevin T. Foley et al. Jun 2003
US7153304 Zimmer Trabecular Metal Technology, Inc. Bruce Robie et al. Dec 2006
US7357895 Osteotech, Inc. Lawrence A. Shimp Apr 2008
US7288096 Origin Medsystems, Inc. Albert K. Chin Oct 2007
US7442195 BEHRENS ALFRED F Alfred F. Behrens Oct 2008
US7399301 Warsaw Orthopedic, Inc. Gary K. Michelson Jul 2008
US7575577 SpineWave Lawrence Boyd et al. Aug 2009
US7601174 Warsaw Orthopedic, Inc. Aaron Kelly et al. Oct 2009
US7597695 Zimmer Spine, Inc. Daniel G. Schmiel et al. Oct 2009
US6562045 SDGI Holdings, Inc. Carlos Gil et al. May 2003
US6562040 Spinal Concepts, Inc. Erik J. Wagner May 2003
US6641582 Sulzer Spine-Tech Inc. David A. Hanson et al. Nov 2003
US6635062 SDGI Holdings, Inc. Eddie F. Ray, III et al. Oct 2003
US6840941 Depuy Acromed, Inc. Christopher Rogers et al. Jan 2005
US7326250 LDR Medical Jacques Beaurain et al. Feb 2008
US7597698 Maquet Cardiovascular LLC Albert K. Chin Oct 2009
US6554836 Gary K. Michelson Apr 2003
US6599291 SDGI Holdings, Inc. Kevin T. Foley et al. Jul 2003
US6949105 SDGI Holdings, Inc. Vincent Bryan et al. Sep 2005
US6962592 Cortek, Inc. Roland F. Gatturna et al. Nov 2005
US7025787 SDGI Holdings, Inc. Vincent Bryan et al. Apr 2006
US7398781 Maquet Cardiovascular, LLC Albert K. Chin Jul 2008
USD501555 Ortho Development Corporation Peter Pal Varga et al. Feb 2005
US7625379 Warsaw Orthopedic, Inc. Rolando M Puno et al. Dec 2009
US7637952 Zimmer Spine, Inc. Michael E. Landry et al. Dec 2009
US6416515 Spinal Concepts, Inc. Erik J. Wagner Jul 2002
US6682533 Spinal Concepts, Inc. Michael C. Dinsdale et al. Jan 2004
US6613050 Spinal Concepts, Inc. Erik J. Wagner et al. Sep 2003
US6821280 Charanpreet S. Bagga et al. Nov 2004
US7147665 SDGI Holdings, Inc. Vincent Bryan et al. Dec 2006
US7214180 Origin Medsystems, Inc. Albert K Chin May 2007
US7632278 Alphatec Spine, Inc. Keith E. Jansen et al. Dec 2009
USD458372 Robert A Dixon et al. Jun 2002
US6454769 Spinal Concepts, Inc. Erik J. Wagner et al. Sep 2002
US6524312 Spinal Concepts, Inc. Michael E. Landry et al. Feb 2003
US6554863 Synthes David C. Paul et al. Apr 2003
US6592624 DePuy AcroMed, Inc. Robert D. Fraser et al. Jul 2003
US7526342 Maquet Cardiovascular LLC Albert K. Chin et al. Apr 2009
US7547306 Warsaw Orthopedic, Inc. Gary K. Michelson Jun 2009
US7563284 Synthes USA, LLC Justin K. Coppes et al. Jul 2009
US7611514 Warsaw Orthopedic, Inc. Gary K. Michelson Nov 2009
US7632282 LDR Medical Herv Dinville Dec 2009
USD494274 Ortho Development Corporation Peter Pal Varga et al. Aug 2004
US6425920 James S. Hamada Jul 2002
US6358254 D. Greg Anderson D. Greg Anderson Mar 2002
US6576016 Spinal Concepts, Inc. Stephen H. Hochshuler et al. Jun 2003
US7547308 Warsaw Orthopedic, Inc. Rudolf Bertagnoli et al. Jun 2009
US6569168 Osteotech, Inc. Jo-Wen Lin May 2003
US6824565 Nabil L. Muhanna et al. Nov 2004
US7169152 SDGI Holdings, Inc. Kevin T. Foley et al. Jan 2007
US7018416 Zimmer Spine, Inc. David A. Hanson et al. Mar 2006
US7189242 Warsaw Orthopedic, Inc. Lawrence M. Boyd et al. Mar 2007
US7520900 Warsaw Orthopedic, Inc. Hai H. Trieu Apr 2009
USD493225 Ortho Development Corporation Peter Pal Varga et al. Jul 2004
US6458144 Osteotech, Inc. John W. Morris et al. Oct 2002
US6565574 Gary K. Michelson May 2003
US6635060 Sulzer Spine-Tech Inc. David A. Hanson et al. Oct 2003
US6755841 DePuy Acromed, Inc. Robert D. Fraser et al. Jun 2004
US7118580 Spine Solutions Inc. Boris Beyersdorff et al. Oct 2006
US7300465 Synthes (U.S.A.) David C. Paul et al. Nov 2007
US7601157 Spine Wave, Inc. Lawrence M. Boyd et al. Oct 2009

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