Patents by Inventor David Kirschman

David Kirschman 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: 20080027549
    Abstract: This invention relates to a disk augmentation system or situating a retainer comprising artificial supports posterior to or exterior of a spinal column and a spinal column axis. The system provides an external retainer having supports for receiving at least one artificial compression body and securing at least one artificial compression body in a supported relationship to facilitate reducing load on the one or more natural disks of a patient.
    Type: Application
    Filed: October 9, 2007
    Publication date: January 31, 2008
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Kirschman
  • Publication number: 20080021476
    Abstract: Spinal fusion system and method utilizing an implant plate and screw, wherein at least one pawl is mounted on or integral with at least one of said plate and becomes operatively related to the screw after the screw is inserted in the implant plate to prevent the screw from moving in at least one of an axial direction or a rotational direction. Other features and embodiments are described and claimed.
    Type: Application
    Filed: July 16, 2007
    Publication date: January 24, 2008
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Kirschman
  • Publication number: 20070179504
    Abstract: This invention relates to a spinal fusion system and method for use as a prosthetic implant. The system and method includes a housing dimensioned to be situated between adjacent spinal bones, such as adjacent vertebrae. The housing cooperates with the spinal bones to define a graft area for receiving graft material, which may be inserted anteriorly into the housing during a surgical operation such as a vertebrectomy or discectomy. A housing may have various features such as migration preventers to prevent the housing from migrating posteriorly towards a spinal column during or after insertion of the housing; a plurality of projections or crossbars may be removably inserted into the housing and can be used with a cover that permits the housing to “float” relative thereto.
    Type: Application
    Filed: January 18, 2007
    Publication date: August 2, 2007
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Kirschman
  • Publication number: 20070123867
    Abstract: A bone fixation assembly and capless multi-axial screw system and method are shown. The assembly comprises a receiver having a rotary lock which in one embodiment includes a plurality of channels which urge and lock the elongated member to the screw using a bayonet type connection.
    Type: Application
    Filed: December 14, 2006
    Publication date: May 31, 2007
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Kirschman
  • Publication number: 20070123885
    Abstract: This invention relates to a bony fixation system and method for use as a prosthetic implant. The system and method includes a plate dimensioned to be situated between adjacent bony structures, such as adjacent vertebrae. Screws are provided in one embodiment and are dimensioned or configured to be inserted into a bony structure and to lock against each other to retain the screws and consequently secure the plate in place against the bony structure.
    Type: Application
    Filed: January 12, 2007
    Publication date: May 31, 2007
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: David Kirschman
  • Publication number: 20070043357
    Abstract: A spinal fixation assembly and capless multi-axial screw system and method are shown. The assembly comprises a receiver having a rotary lock which in one embodiment includes a plurality of channels which urge and lock the elongated member to the screw using a bayonet type connection.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 22, 2007
    Applicant: X-spine Systems, Inc.
    Inventor: David Kirschman
  • Publication number: 20060195100
    Abstract: Spinal fusion system utilizing an implant plate having at least one integral lock.
    Type: Application
    Filed: April 19, 2006
    Publication date: August 31, 2006
    Applicant: X-spine Systems, Inc.
    Inventor: David Kirschman
  • Publication number: 20060095132
    Abstract: An implant having a first member having a first elongated channel and a second member having a second elongated concave channel that becomes generally opposed when the first and second members are mounted to a first and second vertebra. A ball bearing is received in each of the channels to both separate and maintain a predetermined distance between the first and second member and also to facilitate movement in a plane that intersects an axis of the spinal column. The ball bearing is seated in and cooperates with the channels to permit pivotal movement about a plurality of axes. A method for replacing a disc is also shown using the implant.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventor: David Kirschman
  • Publication number: 20050228381
    Abstract: This invention relates to a disk augmentation system and method for situating a retainer comprising artificial supports posterior to or exterior of a spinal column and a spinal column axis. The system and method provides an external retainer having supports for receiving at least one artificial compression body and securing at least one artificial compression body in a supported relationship to facilitate reducing load on the one or more natural disks of a patient.
    Type: Application
    Filed: April 9, 2004
    Publication date: October 13, 2005
    Inventor: David Kirschman
  • Publication number: 20050071008
    Abstract: This invention relates to a spinal fusion system and method for use as a prosthetic implant. The system and method includes a housing dimensioned to be situated between adjacent spinal bones, such as adjacent vertebrae. The housing cooperates with the spinal bones to define a graft area for receiving graft material, which may be inserted anteriorly into the housing during a surgical operation such as a vertebrectomy or discectomy. A housing may have various features such as migration preventers to prevent the housing from migrating posteriorly towards a spinal column and can be used with a cover that permits the housing to “float” relative thereto. Screws are provided in one embodiment and are dimensioned or configured to lock against each other to retain the screws and, consequently, the cover in place.
    Type: Application
    Filed: June 2, 2004
    Publication date: March 31, 2005
    Inventor: David Kirschman
  • Publication number: 20050071006
    Abstract: This invention relates to a spinal fusion system and method for use as a prosthetic implant. The system and method includes a housing dimensioned to be situated between adjacent spinal bones, such as adjacent vertebrae. The housing cooperates with the spinal bones to define a graft area for receiving graft material, which may be inserted anteriorly into the housing during a surgical operation such as a vertebrectomy or discectomy. A housing may have various features such as migration preventers to prevent the housing from migrating posteriorly towards a spinal column during or after insertion of the housing; a plurality of projections or crossbars may be removably inserted into the housing and can be used with a cover that permits the housing to “float” relative thereto.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventor: David Kirschman