Patents by Inventor David L. Schalliol

David L. Schalliol has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140277494
    Abstract: Vertebral body replacements are provided, including at least one vertebral body replacement in the shape of an oblong object. The oblong vertebral body replacement includes a nose shape to provide as minimally invasive an installation as possible, serrations formed in the side wall of the body replacement's body to prevent expulsion once the body replacement is in place, a tapered asymmetric shape to provide spinal lordosis, and an integral protrusion for stability and to increase the bearing area to reduce contact pressure between the body replacement and the vertebral plate. Hollow passages are typically filled with bone tissue. The body is also provided with holes passing therethrough to promote tissue growth.
    Type: Application
    Filed: January 9, 2014
    Publication date: September 18, 2014
    Applicant: Nabil L. Muhanna, M.D.
    Inventors: Nabil L. Muhanna M.D., David L. Schalliol
  • Patent number: 8628575
    Abstract: Vertebral body replacements are provided, including at least one vertebral body replacement in the shape of an oblong object. The oblong vertebral body replacement includes a nose shape to provide as minimally invasive an installation as possible, serrations formed in the side wall of the body replacement's body to prevent expulsion once the body replacement is in place, a tapered asymmetric shape to provide spinal lordosis, and an integral protrusion for stability and to increase the bearing area to reduce contact pressure between the body replacement and the vertebral plate. Hollow passages are typically filled with bone tissue. The body is also provided with holes passing therethrough to promote tissue growth.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: January 14, 2014
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Patent number: 8177843
    Abstract: An automated screw rod bender includes a sensing system for sensing a position of each of a plurality of screws that are inserted into a vertebrae, a computing system for converting the positions into a geometric coordinates of the screws and generating a corresponding plurality of rod bending parameters, and a rod bending system for bending a rod based on the rod bending parameters.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: May 15, 2012
    Inventor: David L. Schalliol
  • Publication number: 20120046751
    Abstract: Vertebral body replacements are provided, including at least one vertebral body replacement in the shape of an oblong object. The oblong vertebral body replacement includes a nose shape to provide as minimally invasive an installation as possible, serrations formed in the side wall of the body replacement's body to prevent expulsion once the body replacement is in place, a tapered asymmetric shape to provide spinal lordosis, and an integral protrusion for stability and to increase the bearing area to reduce contact pressure between the body replacement and the vertebral plate. Hollow passages are typically filled with bone tissue. The body is also provided with holes passing therethrough to promote tissue growth.
    Type: Application
    Filed: September 26, 2011
    Publication date: February 23, 2012
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Publication number: 20110071637
    Abstract: The present invention provides vertebral spacers having a lower surface and an upper surface, an anterior face and a posterior face extending from the lower surface, and at least one guiding groove for engaging an insertion tool. A system for delivering a vertebral spacer to the spinal column of a patient, includes an insertion tool, an optional guiding tool, a pusher, a vertebral spacer, and a cutting tool. The insertion tool accepts any of a pusher, a vertebral spacer, or a cutting tool and has at least one spacer guide for engaging with a guiding groove of a vertebral spacer. The vertebral spacer is inserted into a patient by inserting the insertion tool into an intervertebral space, engaging the guiding groove of a vertebral spacer with a space guide of the insertion tool, advancing a pusher into the insertion tool, thereby pushing the vertebral spacer into the intervertebral space and thereafter removing the pusher and the insertion tool.
    Type: Application
    Filed: June 30, 2010
    Publication date: March 24, 2011
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Patent number: 7867239
    Abstract: A vertebral plating system includes a bone screw and a vertebral plate. The bone screw includes a screw head and a shaft. The screw head includes at least three segments flexibly attached to the shaft and has a spherical outside surface. The plate includes holes to receive the screw and that have a spherical inside surface. A driver tool has pins that are inserted into a pin hole on each segment, and that causes the segments to move towards each other when downward pressure is applied.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: January 11, 2011
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Patent number: 7815680
    Abstract: A vertebral implant for replacing a biological disk includes a top and bottom plate. The implant further includes flexible coupling that couples together the plates while allowing the same degree of freedom in all axes of motion as the original biological disk.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: October 19, 2010
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Patent number: 7686833
    Abstract: A pedicle screw assembly includes pedicle screw having a plurality of spaced-apart posts. A ball collet having a ball collet bore is seated on the pedicle screw between the posts and a rod is gripped by an inner surface of the ball collet bore. The assembly also includes a cap that is coupled to the posts, the cap applying a compressive force to the ball collet against a seat of said pedicle screw. A free end of the rod may be provided with various structures to enable such free end to be retained by another pedicle screw.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: March 30, 2010
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Publication number: 20070276484
    Abstract: An insertion device for inserting an implant into a body through an incision is provided. The device includes a holder for receiving an implant and has an open downstream end that is dimensioned to be inserted into the incision and for passing the implant therethrough. The device also includes a flexible carrier that extends through the downstream end of the implant holder and is positioned along inner and outer wall surfaces of the holder. The carrier is dimensioned to frictionally engage the implant at least at a position on the inner wall surface proximate the downstream end of the holder. The carrier and the holder are configured such that when the carrier is caused to move through the open downstream end, the implant moves with the carrier, through the opening, and into the incision.
    Type: Application
    Filed: February 8, 2007
    Publication date: November 29, 2007
    Applicant: INSERTION, LLC
    Inventors: Edward Alan Abell, Nabil L. Muhanna, David L. Schalliol
  • Patent number: 6824565
    Abstract: The present invention provides vertebral spacers having a lower surface and an upper surface, an anterior face and a posterior face extending from the lower surface, and at least one guiding groove for engaging an insertion tool. A system for delivering a vertebral spacer to the spinal column of a patient, includes an insertion tool, an optional guiding tool, a pusher, a vertebral spacer, and a cutting tool. The insertion tool accepts any of a pusher, a vertebral spacer, or a cutting tool and has at least one spacer guide for engaging with a guiding groove of a vertebral spacer. The vertebral spacer is inserted into a patient by inserting the insertion tool into an intervertebral space, engaging the guiding groove of a vertebral spacer with a space guide of the insertion tool, advancing a pusher into the insertion tool, thereby pushing the vertebral spacer into the intervertebral space and thereafter removing the pusher and the insertion tool.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: November 30, 2004
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Patent number: 6716163
    Abstract: An instrument holder including a releasably lockable adjustable arm for rigidly maintaining a tool or instrument in a pre-selected orientation. The instrument holder also includes a tensioning device pivotally connected by a hinge to the arm. The arm includes a plurality of links longitudinally arranged along a common axis, wherein adjacent links are pivotally connected by a hinge, and a duct. A tensioning cable extending within the duct of the arm attaches to the distal end of the articulated arm and to the tensioning device, and applies a tension force to compress the hinges so as to rigidly lock the arm into the preset position.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 6, 2004
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Publication number: 20030171814
    Abstract: The present invention provides vertebral spacers having a lower surface and an upper surface, an anterior face and a posterior face extending from the lower surface, and at least one guiding groove for engaging an insertion tool. A system for delivering a vertebral spacer to the spinal column of a patient, includes an insertion tool, an optional guiding tool, a pusher, a vertebral spacer, and a cutting tool. The insertion tool accepts any of a pusher, a vertebral spacer, or a cutting tool and has at least one spacer guide for engaging with a guiding groove of a vertebral spacer. The vertebral spacer is inserted into a patient by inserting the insertion tool into an intervertebral space, engaging the guiding groove of a vertebral spacer with a space guide of the insertion tool, advancing a pusher into the insertion tool, thereby pushing the vertebral spacer into the intervertebral space and thereafter removing the pusher and the insertion tool.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 11, 2003
    Inventors: Nabil L. Muhanna, David L. Schalliol
  • Publication number: 20020058860
    Abstract: An instrument holder including a releasably lockable adjustable arm for rigidly maintaining a tool or instrument in a pre-selected orientation. The instrument holder also includes a tensioning device pivotally connected by a hinge to the arm. The arm includes a plurality of links longitudinally arranged along a common axis, wherein adjacent links are pivotally connected by a hinge, and a duct. A tensioning cable extending within the duct of the arm attaches to the distal end of the articulated arm and to the tensioning device, and applies a tension force to compress the hinges so as to rigidly lock the arm into the preset position.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 16, 2002
    Inventors: Nabil L. Muhanna, David L Schalliol