Patents Assigned to Sofamor Danek Holdings, Inc.
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Patent number: 8768437Abstract: A system and apparatus allows the tracking of a selected body portion, instrument, or both. A tracking device can be interconnected to a body portion at a mounting site. A procedure can be performed at a location remote from the mounting site of the tracking device. The tracking device can be interconnected with the body in a low invasive manner.Type: GrantFiled: October 25, 2006Date of Patent: July 1, 2014Assignee: Sofamor Danek Holdings, Inc.Inventor: Earl F Barrick
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Patent number: 8105339Abstract: A guide is disclosed for use in performing spinal surgery to prepare across a spinal disc and adjacent vertebrae an implantation space. The guide is associated with a computer controlled surgical navigation system employing an energy-detecting array to track positions of the guide in three dimensional space relative to a known reference point. The guide includes a body for providing protected access to prepare across the spinal disc and into the adjacent vertebrae the implantation space. The body has a passage adapted to receive a bone removal device for forming the implantation space through the body. At least one electrically energizable energy emitter array is attached to the body for use in identifying the location of the guide relative to the adjacent vertebrae. A system and method for using the guide in spinal surgery are also disclosed.Type: GrantFiled: July 21, 2010Date of Patent: January 31, 2012Assignee: Sofamor Danek Holdings, Inc.Inventors: Anthony J. Melkent, Kevin T. Foley, Bradley T. Estes, Joseph Chaudoin
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Publication number: 20070038079Abstract: A system and apparatus allows the tracking of a selected body portion, instrument, or both. A tracking device can be interconnected to a body portion at a mounting site. A procedure can be performed at a location remote from the mounting site of the tracking device. The tracking device can be interconnected with the body in a low invasive manner.Type: ApplicationFiled: October 25, 2006Publication date: February 15, 2007Applicant: Sofamor Danek Holdings, Inc.Inventor: Earl Barrick
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Patent number: 7130676Abstract: A fluoroscopic image guided surgery system, comprising a C-arm fluoroscope for obtaining fluoroscopic images of an object bone, the C-arm fluoroscope including at least one set of emitters; a reference bar capable of attaching to an object bone, the reference bar including emitters; a surgical instrument for performing an operation, the instrument including emitters; a digitizer system in communication with the at least one set of emitters of the C-arm fluoroscope, the emitters of the reference bar, and the emitters of the surgical instrument so that the digitizer system can determine a position of each of the C-arm fluoroscope, the reference bar, and the surgical instrument; and a single fiducial marker for attachment to an object bone, the single fiducial marker being visible in the fluoroscopic images for determining a position of an object bone relative to the digitizer system.Type: GrantFiled: August 29, 2002Date of Patent: October 31, 2006Assignee: Sofamor Danek Holdings, Inc.Inventor: Earl F Barrick
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Publication number: 20040034358Abstract: Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.Type: ApplicationFiled: August 9, 2003Publication date: February 19, 2004Applicant: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson
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Publication number: 20030153916Abstract: Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.Type: ApplicationFiled: February 21, 2003Publication date: August 14, 2003Applicant: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson
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Publication number: 20020198532Abstract: Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.Type: ApplicationFiled: August 20, 2002Publication date: December 26, 2002Applicant: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson
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Patent number: 6491702Abstract: A method and apparatus for defining the location of a medical instrument relative to features of a medical workspace including a patient's body region are described. Pairs of two-dimensional images are obtained, preferably by means of two video cameras making images of the workspace along different sightlines which intersect. A fiducial structure is positioned in the workspace for defining a three dimensional coordinate framework, and a calibration image pair is made. The calibration image pair comprises two 2D projections from different locations of the fiducial structure. After the calibration image pair is made, the fiducial structure is removed. A standard projection algorithm is used to reconstruct the 3D framework of the fiducial structure from the calibration image pair. Appropriate image pairs can then be used to locate and track any other feature such as a medical instrument, in the workspace, so long as the cameras remain fixed in their positions relative to the workspace.Type: GrantFiled: May 29, 2001Date of Patent: December 10, 2002Assignee: Sofamor Danek Holdings, Inc.Inventors: Mark Peter Heilbrun, Paul McDonald, J. Clayton Wiker, Spencer Koehler, William Peters
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Patent number: 6478823Abstract: A spinal implant is disclosed which when placed within the spinal disc space stabilizes that spinal segment and materially participates in, and is incorporated in, the ensuing fusion.Type: GrantFiled: May 30, 2000Date of Patent: November 12, 2002Assignee: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson
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Patent number: 6477400Abstract: A fluoroscopic image guided surgery system, comprising a C-arm fluoroscope for obtaining fluoroscopic images of an object bone, the C-arm fluoroscope including at least one set of emitters; a reference bar capable of attaching to an object bone, the reference bar including emitters; a surgical instrument for performing an operation, the instrument including emitters; a digitizer system in communication with the at least one set of emitters of the C-arm fluoroscope, the emitters of the reference bar, and the emitters of the surgical instrument so that the digitizer system can determine a position of each of the C-arm fluoroscope, the reference bar, and the surgical instrument; and a single fiducial marker for attachment to an object bone, the single fiducial marker being visible in the fluoroscopic images for determining a position of an object bone relative to the digitizer system.Type: GrantFiled: August 16, 1999Date of Patent: November 5, 2002Assignee: Sofamor Danek Holdings, Inc.Inventor: Earl Frederick Barrick
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Patent number: 6436098Abstract: Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.Type: GrantFiled: January 16, 1996Date of Patent: August 20, 2002Assignee: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson
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Publication number: 20010039421Abstract: A method and apparatus for defining the location of a medical instrument relative to features of a medical workspace including a patient's body region are described. Pairs of two-dimensional images are obtained, preferably by means of two video cameras making images of the workspace along different sightlines which intersect. A fiducial structure is positioned in the workspace for defining a three dimensional coordinate framework, and a calibration image pair is made. The calibration image pair comprises two 2D projections from different locations of the fiducial structure. After the calibration image pair is made, the fiducial structure is removed. A standard projection algorithm is used to reconstruct the 3D framework of the fiducial structure from the calibration image pair. Appropriate image pairs can then be used to locate and track any other feature such as a medical instrument, in the workspace, so long as the cameras remain fixed in their positions relative to the workspace.Type: ApplicationFiled: May 29, 2001Publication date: November 8, 2001Applicant: Sofamor Danek Holdings, Inc.Inventors: Marl Peter Heilbrun, Paul McDonald, J. Clayton Wiker, Spencer Koehler, William Peters
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Patent number: 6224595Abstract: An artificial spinal implant is disclosed which when placed between two adjacent vertebrae directly participates and is incorporated in the ensuing fusion. Instrumentation and procedure is also disclosed.Type: GrantFiled: April 20, 1998Date of Patent: May 1, 2001Assignee: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson
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Patent number: 6165181Abstract: A method and apparatus for defining the location of a medical instrument relative to features of a medical workspace including a patient's body region are described. Pairs of two-dimensional images are obtained, preferably by means of two video cameras making images of the workspace along different sightlines which intersect. A fiducial structure is positioned in the workspace for defining a three dimensional coordinate framework, and a calibration image pair is made. The calibration image pair comprises two 2D projections from different locations of the fiducial structure. After the calibration image pair is made, the fiducial structure is removed. A standard projection algorithm is used to reconstruct the 3D framework of the fiducial structure from the calibration image pair. Appropriate image pairs can then be used to locate and track any other feature such as a medical instrument, in the workspace, so long as the cameras remain fixed in their positions relative to the workspace.Type: GrantFiled: October 15, 1998Date of Patent: December 26, 2000Assignee: Sofamor Danek Holdings, Inc.Inventors: Mark Peter Heilbrun, Paul McDonald, J. Clayton Wiker, Spencer Koehler, William Peters
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Patent number: 6146390Abstract: A method and apparatus for defining the location of a medical instrument relative to features of a medical workspace including a patient's body region are described. Pairs of two-dimensional images are obtained, preferably by means of two video cameras making images of the workspace along different sightlines which intersect. A fiducial structure is positioned in the workspace for defining a three dimensional coordinate framework, and a calibration image pair is made. The calibration image pair comprises two 2D projections from different locations of the fiducial structure. After the calibration image pair is made, the fiducial structure is removed. A standard projection algorithm is used to reconstruct the 3D framework of the fiducial structure from the calibration image pair. Appropriate image pairs can then be used to locate and track any other feature such as a medical instrument, in the workspace, so long as the cameras remain fixed in their positions relative to the workspace.Type: GrantFiled: February 25, 2000Date of Patent: November 14, 2000Assignee: Sofamor Danek Holdings, Inc.Inventors: Mark Peter Heilbrun, Paul McDonald, J. Clayton Wiker, Spencer Koehler, William Peters
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Patent number: 6126660Abstract: A spinal distraction device is provided that includes a body, a rack and a pinion-locking member. The body has a vertebral endplate engagement end and an opposite end. The body defines a chamber along its length and an opening at the opposite end in communication with the chamber. A gear bore is defined in communication with the chamber and has an axis perpendicular to the length. The rack is slidably disposed through the opening and within the chamber. The rack is slidable between a retracted position with the first end of the rack adjacent the vertebral engaging end of the body and the foot adjacent the opposite end of the body and a number of extended positions wherein the foot is at a distance from the opposite end of the body. The rack defines an engagement member with an engagement surface exposed to the gear bore. The pinion-locking member is rotatable within the gear bore to mesh with the engagement surface to convert rotary motion of the member to reciprocating motion of the rack.Type: GrantFiled: July 29, 1998Date of Patent: October 3, 2000Assignee: Sofamor Danek Holdings, Inc.Inventor: John W. Dietz
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Patent number: 6113637Abstract: An intervertebral joint prosthesis having a ball component (22) for engagement with a first vertebra (26) and a trough component (24) for engagement with a second vertebra (27) adjacent to the first vertebra is disclosed. The trough component (24) includes a generally concave surface (50) having a substantially flat portion (52). When the ball component (22) and the trough component (24) are engaged to their respective vertebrae, the ball component (72) and the trough component (24) engage each other, permitting rotation and translation of the vertebrae with respect to each other. Both components include a flange (34,56) for engaging a vertebra. The invention also contemplates a method for and a tool for use in implanting a two-piece intervertebral joint prosthesis.Type: GrantFiled: October 22, 1998Date of Patent: September 5, 2000Assignee: Sofamor Danek Holdings, Inc.Inventors: Steven S. Gill, Colin Walker, James van Hoeck, Larry Gause
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Patent number: 5766004Abstract: A medical/dental apparatus utilizing the properties of shape memory materials to variably control the spatial relationship between two or more elements having portions which are proximately disposed and overlapping relative to one another. Another portion of each element is connectable to part of a patient's body.Type: GrantFiled: September 5, 1996Date of Patent: June 16, 1998Assignee: Sofamor Danek Holdings, Inc.Inventors: Petrus Antonius Besselink, Rohit C. L. Sachdeva
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Patent number: D425989Type: GrantFiled: July 15, 1996Date of Patent: May 30, 2000Assignee: Sofamor Danek Holdings, Inc.Inventor: Gary Karlin Michelson