Patent
Posterio spinal fixation
| العنوان: | Posterio spinal fixation |
|---|---|
| Patent Number: | 9,737,339 |
| تاريخ النشر: | August 22, 2017 |
| Appl. No: | 11/667365 |
| Application Filed: | September 08, 2005 |
| مستخلص: | This application describes a spinal fixation system. The spinal fixation system includes at least a rod member having shaped ends, at least two pedicle screws capable of receiving the shaped ends of the rod member, and a system for introducing the rod member and pedicle screws in a minimally invasive fashion. |
| Inventors: | Copp, Matthew (San Diego, CA, US); Campbell, Christopher M. (Temecula, CA, US); Cornwall, G. Bryan (San Diego, CA, US); Dasso, Eric (San Diego, CA, US); Phillips, Frank M. (Highland Park, IL, US) |
| Assignees: | NuVasive, Inc. (San Diego, CA, US) |
| Claim: | 1. A spinal fixation system for fixing target vertebrae of a spine, comprising: an elongate connecting element having first and second at least partially spherical shaped ends; first and second bone engaging fasteners each having a screw with a head and a housing adjustably coupled to said screw head at a screw coupled end such that the screw coupled end rotates about the screw head to adjust the angular orientation of the housing relative to the screw, and wherein said housings each have a cavity situated above the screw coupled end, the cavity configured to wholly receive either of said first shaped end and said second shaped end therein and such that the housing is rotatable about the first or second shaped end received therein which repositions the screw coupled end and coupled screw relative to the shaped end received therein; and first and second guide members that are mateable with said housings of the first and second bone engaging fasteners at a guide coupled end opposite the screw coupled end and that are configured to guide said elongate connecting element into said first and second bone engaging fastener housings, wherein angulating at least one of the first and second guide members to adjust the angular orientation of the mated housing causes said housing to rotate about said shaped end received therein repositioning the screw coupled end and coupled screw relative to the shaped end to thereby effect one of spinal compression and spinal distraction between said target vertebrae. |
| Claim: | 2. The system of claim 1 , wherein said elongate connecting element spans between two target vertebrae. |
| Claim: | 3. The system of claim 1 , wherein said elongate connecting element spans at least three target vertebrae. |
| Claim: | 4. The system of claim 3 , including a third bone engaging fastener disposed between said first and second bone engaging fasteners. |
| Claim: | 5. The system of claim 4 , comprising a third guide member having two enlarged openings dimensioned to receive said shaped ends of said connecting element and an elongate slot extending from each said enlarged opening to the distal end of said third guide member, said slots formed on opposite sides of said third guide member to allow the shaped ends of said connecting element to pass through said enlarged opening and a central portion of said connecting element to be disposed within said elongated slots. |
| Claim: | 6. The system of claim 5 , wherein said third guide member is retained during use by a retaining element. |
| Claim: | 7. The system of claim 6 , wherein said retaining element is generally tubular and encompasses at least a portion of said third guide member during use. |
| Claim: | 8. The system of claim 3 , wherein said first and second bone engaging fasteners are coupled to one of adjacent target vertebrae and non-adjacent target vertebrae. |
| Claim: | 9. The system of claim 1 , wherein at least one of said shaped ends is cannulated. |
| Claim: | 10. The system of claim 1 , wherein said elongate connecting element is straight. |
| Claim: | 11. The system of claim 1 , wherein each of said housings is equipped with a locking mechanism for locking said shaped ends of said connecting element within said respective housings. |
| Claim: | 12. The system of claim 11 , wherein said locking mechanism comprises a threaded set screw for threaded engagement with threads formed within said respective housing. |
| Claim: | 13. The system of claim 1 , wherein each guide member defines a lumen therethrough from a distal end to a proximal end, each guide member having at least one enlarged opening dimensioned to receive one of said shaped ends and an elongate slot extending from the enlarged opening to said distal end such that each shaped end is maintained within said lumen as said connecting element is advanced toward said bone engaging fasteners. |
| Claim: | 14. The system of claim 13 , wherein the first and second guide members each have a length configured to extend at least between a respective housing and a body entry point when said first and second guide members are mated with said housings of said first and second bone engaging fasteners and said first and second bone engaging fasteners are anchored to a spine. |
| Claim: | 15. The system of claim 14 , wherein the elongate slot on each guide member has a length configured such that the enlarged opening is situated externally to the body entry site when said first and second guide members are mated with said first and second bone engaging fasteners and said first and second bone engaging fasteners are anchored to a spine. |
| Claim: | 16. The system of claim 1 , wherein said guide members are configured such that they may be manipulated to introduce said bone engaging fasteners into said target vertebrae. |
| Claim: | 17. The system of claim 16 , wherein each guide member defines a lumen therethrough from a distal end to a proximal end, said lumen dimensioned to receive a sleeve member therethrough, said sleeve member comprising a distal end configured to releasably engage said housing. |
| Claim: | 18. The system of claim 17 , wherein said sleeve member is configured to releasably engage said guide member. |
| Claim: | 19. The system of claim 1 , wherein said elongate connecting element is curved. |
| Claim: | 20. A spinal fixation system, comprising: an elongate connecting element having first and second shaped ends; first and second bone engaging fasteners each having a screw and a housing for receiving respective shaped ends therein; and first and second guide members that are mateable with said first and second bone engaging fasteners and have a length to extend at least between a respective housing and a body entry point when said first and second guide members are mated with said first and second bone engaging fasteners and said first and second bone engaging fasteners are anchored to a spine, wherein each guide member defines a lumen therethrough from a distal end to a proximal end, each guide member having at least one elongate slot opening into said lumen and extending a majority of the length of the guide member from the distal end to a position short of the proximal end, wherein a proximal end of said at least one elongate slot connects with an enlarged opening having a width greater than a width of the elongate slot, wherein said shaped ends of said elongate connecting element are sized to fit through said enlarged opening but not said elongate slot such that said shaped end is maintained within said lumen as said connecting element is advanced toward said bone engaging fasteners. |
| Claim: | 21. The system of claim 20 , wherein at least one of said bone engaging fasteners has said housing adjustably coupled to said screw. |
| Claim: | 22. The system of claim 21 , wherein at least one of said guide members may be selectively manipulated to cause said adjustably coupled housing to rotate about said shaped end and thereby effect at least one of spinal compression and spinal distraction between said vertebral target sites. |
| Claim: | 23. The system of claim 20 , wherein each of said first and second bone engaging fasteners has said housing adjustably coupled to said screw. |
| Claim: | 24. The system of claim 20 , wherein said elongate connecting element spans between two vertebral target sites. |
| Claim: | 25. The system of claim 24 , wherein said elongate connecting element spans at least three vertebral target sites. |
| Claim: | 26. The system of claim 25 , including a third bone engaging fastener disposed between said first and second bone engaging fasteners. |
| Claim: | 27. The system of claim 20 , wherein each of said shaped ends is at least partially spherical. |
| Claim: | 28. The system of claim 20 , wherein at least one of said shaped ends is cannulated. |
| Claim: | 29. The system of claim 20 , wherein said elongate connecting element is straight. |
| Claim: | 30. The system of claim 20 , wherein said elongate connecting element is curved. |
| Claim: | 31. The system of claim 20 , wherein each of said housings is equipped with a locking mechanism for locking said shaped ends of said connecting element within said respective housings. |
| Claim: | 32. The system of claim 31 , wherein said locking mechanism comprises a threaded set screw for threaded engagement with threads formed within said respective housings. |
| Claim: | 33. The system of claim 20 , wherein said guide members are configured such that they may be manipulated to introduce said bone engaging fasteners into said vertebral target sites. |
| Claim: | 34. The system of claim 20 , wherein said lumen of each guide member is dimensioned to receive a sleeve member therethrough, said sleeve member comprising a distal end configured to releasably engage said housing. |
| Claim: | 35. The system of claim 34 , wherein said sleeve member is configured to releasably engage said guide member. |
| Claim: | 36. The system of claim 20 , wherein the elongate slot on each guide member has a length configured such that the enlarged opening is situated externally to the body entry site when said first and second guide members are mated with said first and second bone engaging fasteners and said first and second bone engaging fasteners are anchored to a spine. |
| Patent References Cited: | 3848601 November 1974 Ma 4655216 April 1987 Tischer 5540688 July 1996 Navas 5720751 February 1998 Jackson 5984923 November 1999 Breard 6113639 September 2000 Ray 6139549 October 2000 Keller 6183472 February 2001 Lutz 6235028 May 2001 Brumfield et al. 6299616 October 2001 Beger 6379364 April 2002 Brace et al. 6440133 August 2002 Beale et al. 6511484 January 2003 Torode et al. 6530929 March 2003 Justis et al. 6547795 April 2003 Schneiderman 6648888 November 2003 Shluzas 6929606 August 2005 Ritland 6951538 October 2005 Ritland 7008422 March 2006 Foley et al. 7011660 March 2006 Sherman 7179261 February 2007 Sicvol et al. 7188626 March 2007 Foley et al. 7481813 January 2009 Purcell 2001/0021853 September 2001 Heckele et al. 2002/0161368 October 2002 Foley et al. 2003/0199872 October 2003 Markworth et al. 2003/0208203 November 2003 Lim et al. 2004/0138662 July 2004 Landry et al. 2004/0143265 July 2004 Landry et al. 2004/0147937 July 2004 Dunbar, Jr. et al. 2004/0172022 September 2004 Landry et al. 2005/0021031 January 2005 Foley et al. 2005/0065517 March 2005 Chin 2005/0085813 April 2005 Spitler et al. 2005/0131408 June 2005 Sicvol et al. 2005/0131419 June 2005 McCord et al. 2005/0131420 June 2005 Techiera et al. 2005/0131421 June 2005 Anderson et al. 2005/0131422 June 2005 Anderson et al. 2005/0154389 July 2005 Selover et al. 2005/0192570 September 2005 Jackson et al. 2005/0192579 September 2005 Jackson 2005/0192589 September 2005 Raymond et al. 2005/0215999 September 2005 Birkmeyer et al. 2005/0228380 October 2005 Moore et al. 2005/0228400 October 2005 Chao et al. 2005/0245928 November 2005 Colleran et al. 2006/0036244 February 2006 Spitler et al. 2006/0036255 February 2006 Pond, Jr. et al. 2006/0069391 March 2006 Jackson 2006/0074418 April 2006 Jackson 2006/0079894 April 2006 Colleran et al. 2006/0079909 April 2006 Runco 2006/0084993 April 2006 Landry et al. 2006/0089651 April 2006 Trudeau et al. 2006/0095035 May 2006 Jones et al. 2006/0106380 May 2006 Colleran et al. 2006/0106394 May 2006 Colleran et al. 2006/0111712 May 2006 Jackson 2006/0111715 May 2006 Jackson 2006/0122597 June 2006 Jones et al. 2006/0142761 June 2006 Landry et al. 2006/0200132 September 2006 Chao et al. 2006/0247658 November 2006 Pond, Jr. et al. 2006/0264934 November 2006 Fallin 2006/0281838 December 2006 Steinhausler et al. 2006/0293693 December 2006 Farr et al. 2007/0049931 March 2007 Justis et al. 2007/0167949 July 2007 Altarac et al. 2007/0167954 July 2007 Sicvol et al. 2008/0073323 March 2008 Full et al. 2008/0091213 April 2008 Jackson 2008/0288005 November 2008 Jackson 2010/0004696 January 2010 Jackson 4238339 May 1994 1470790 October 2004 1574175 September 2005 0128436 April 2001 2004041100 May 2004 2005058141 June 2005 2006042188 April 2006 2006057837 June 2006 2006091863 August 2006 2006127425 November 2006 2007021588 February 2007 2008051255 May 2008 |
| Primary Examiner: | Pellegrino, Brian |
| Attorney, Agent or Firm: | Bradley Arant Boult Cummings Schermerhorn, Rory |
| رقم الانضمام: | edspgr.09737339 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |