Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2000-10-23
2004-02-03
Rollins, Rosiland K. (Department: 3739)
Surgery
Instruments
Orthopedic instrumentation
C606S075000, C606S075000
Reexamination Certificate
active
06685705
ABSTRACT:
BACKGROUND OF THE INVENTION
Spinal implant systems provide a rod for supporting the spine and for properly positioning components of the spine for various treatment purposes. Bolts, screws, and hooks are typically secured to the vertebrae for connection to the supporting rod. These vertebral anchors must frequently be positioned at various angles due the anatomical structure of the patient, the physiological problem being treated, and the preference of the physician. It is difficult to provide secure connections between the spinal support rod and these vertebral anchors at all the various angles and elevations that are required, especially where there are different distances between the rod and bolts and where these components are located at different heights on the patient.
What is needed is a connection assembly between a spinal rod and a vertebral anchor that allows the surgeon to fix the desired elevation between a rod and the bone anchor as well as fix the desired angle between the anchor and rod. The following invention is one solution to that need.
SUMMARY OF THE INVENTION
In one aspect, this invention is a connection assembly between a spinal implant rod and a vertebral anchor. The connection assembly has a spindle. The spindle has an aperture for receiving a portion of a spinal implant rod and a compression member forceably, for example threadably, engageable into the spindle to urge a spinal implant rod against the internal walls of the aperture. The connection assembly also has housing, for example a spindle block. The housing has an aperture for receiving a portion that projects from the spindle and an aperture for receiving a portion of a vertebral anchor, the aperture for the spindle also being open to the aperture for the vertebral anchor. A second compression member is then forceably engaged into the housing to urge the spindle against the vertebral anchor (or the vertebral anchor against the spindle), securing the housing to the vertebral anchor and the spindle.
In another aspect this invention is a connection assembly between a spinal implant rod and a vertebral anchor. This connection assembly also has spindle and compression member as previous described. This embodiment uses a means for connecting the vertebral anchor to the spindle at a variable angle.
REFERENCES:
patent: 2439995 (1948-04-01), Thrailkill
patent: 4987892 (1991-01-01), Krag et al.
patent: 5002542 (1991-03-01), Frigg
patent: 5053034 (1991-10-01), Olerud
patent: 5129900 (1992-07-01), Asher et al.
patent: 5254118 (1993-10-01), Mirkovic
patent: 5306275 (1994-04-01), Bryan
patent: 5344422 (1994-09-01), Frigg
patent: 5352226 (1994-10-01), Lin
patent: 5380323 (1995-01-01), Howland
patent: 5498262 (1996-03-01), Bryan
patent: 5562663 (1996-10-01), Wisnewski et al.
patent: 5584831 (1996-12-01), McKay
patent: 5591165 (1997-01-01), Jackson
patent: 5613968 (1997-03-01), Lin
patent: 5643260 (1997-07-01), Doherty
patent: 5643263 (1997-07-01), Simonson
patent: 5643264 (1997-07-01), Sherman et al.
patent: 5645544 (1997-07-01), Tai et al.
patent: 5688263 (1997-11-01), Hauptmann et al.
patent: 5688275 (1997-11-01), Koros et al.
patent: 5709685 (1998-01-01), Dombrowski et al.
patent: 5741255 (1998-04-01), Krag et al.
patent: 5776135 (1998-07-01), Errico et al.
patent: 5810816 (1998-09-01), Roussouly et al.
patent: 5879351 (1999-03-01), Viart
patent: 5885285 (1999-03-01), Simonson
patent: 5938663 (1999-08-01), Petreto
patent: 5947965 (1999-09-01), Bryan
patent: 5947967 (1999-09-01), Barker
patent: 5976135 (1999-11-01), Sherman et al.
patent: 5984928 (1999-11-01), Hermann
patent: 6027533 (2000-02-01), Olerud
patent: 6030388 (2000-02-01), Yoshimi et al.
patent: 6063089 (2000-05-01), Errico et al.
patent: 6083226 (2000-07-01), Fiz
patent: 6086588 (2000-07-01), Ameil et al.
patent: 6106526 (2000-08-01), Harms et al.
patent: 6123706 (2000-09-01), Lange
patent: 6183473 (2001-02-01), Ashman
patent: 6187005 (2001-02-01), Brace et al.
patent: 6210413 (2001-04-01), Justis et al.
patent: 6231575 (2001-05-01), Krag
patent: 6248107 (2001-06-01), Foley et al.
patent: 0 553 424 (1993-08-01), None
patent: 0 786 235 A2 (1997-07-01), None
patent: 0 982 007 (2000-03-01), None
patent: 0 982 007 A2 (2000-03-01), None
patent: 2 692 471 (1993-12-01), None
patent: 2 697 743 (1994-05-01), None
patent: 2 806 902 (2001-10-01), None
patent: WO 01/67972 A2 (2001-09-01), None
Rollins Rosiland K.
SDGI Holdings Inc.
Woodard Emhardt Moriarty McNett & Henry LLP
LandOfFree
Six-axis and seven-axis adjustable connector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Six-axis and seven-axis adjustable connector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Six-axis and seven-axis adjustable connector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3280746