Patents by Inventor Volker K. H. Sonntag

Volker K. H. Sonntag 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).

  • Patent number: 8277493
    Abstract: An anterior fixation system includes a plate defining a plurality of screw holes, a number of screws and a number of locking assemblies for fixing the screws to the plate. The system includes two bone screws, a fixed angle screw and a variable angle screw, that are configured to extend through the same screw openings in the fixation plate. The surgeon can select either the fixed or variable angled screws to be implanted with a single plate and can place either type of screw into any of the screw holes along the plate. The fixation plate can include several screw holes in various patterns that provide the surgeon with great flexibility in the placement of bone screws depending upon the spinal anatomy and pathology. Also contemplated is a locking assembly to lock one or more bone screws within a respective screw hole.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: October 2, 2012
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Robert A. Farris, Jeffrey Wade Poyner, Volker K. H. Sonntag, Regis W. Haid, Jr., Stephen M. Papadopoulos
  • Patent number: 7001387
    Abstract: In one embodiment of the invention, an anterior fixation system includes a plate defining a plurality of screw holes, a number of screws and a number of locking assemblies for fixing the screws to the plate. The system includes two bone screws a fixed angle screw and a variable angle screw, that are configured to extend through the same screw openings in the fixation plate. The surgeon can select either the fixed or variable angled screws to be implanted with a single plate and can place either type of screw into any of the screw holes along the plate. The fixation plate according to the invention can include several screw holes in various patterns that provide the surgeon with great flexibility in the placement of bone screws depending upon the spinal anatomy and pathology. The invention further contemplates a locking assembly to lock one or more bone screws within a respective screw hole. In one embodiment, the locking assembly includes a washer that is held to the plate by a staked locking screw.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: February 21, 2006
    Assignee: SDGI Holdings, Inc.
    Inventors: Robert A. Farris, Jeffrey Wade Poyner, Volker K. H. Sonntag, Regis W. Haid, Jr., Stephen M. Papadopoulos
  • Publication number: 20040097934
    Abstract: In one embodiment of the invention, an anterior fixation system includes a plate defining a plurality of screw holes, a number of screws and a number of locking assemblies for fixing the screws to the plate. The system includes two bone screws a fixed angle screw and a variable angle screw, that are configured to extend through the same screw openings in the fixation plate. The surgeon can select either the fixed or variable angled screws to be implanted with a single plate and can place either type of screw into any of the screw holes along the plate. The fixation plate according to the invention can include several screw holes in various patterns that provide the surgeon with great flexibility in the placement of bone screws depending upon the spinal anatomy and pathology. The invention further contemplates a locking assembly to lock one or more bone screws within a respective screw hole. In one embodiment, the locking assembly includes a washer that is held to the plate by a staked locking screw.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 20, 2004
    Inventors: Robert A. Farris, Jeffrey Wade Poyner, Volker K. H. Sonntag, Regis W. Haid, Stephen M. Papadopoulos
  • Patent number: 6669700
    Abstract: In one embodiment of the invention, an anterior fixation system includes a plate defining a plurality of screw holes, a number of screws and a number of locking assemblies for fixing the screws to the plate. The system includes two bone screws, a fixed angle screw and a variable angle screw, that are configured to extend through the same screw openings in the fixation plate. The surgeon can select either the fixed or variable angled screws to be implanted with a single plate and can place either type of screw into any of the screw holes along the plate. The fixation plate according to the invention can include several screw holes in various patterns that provide the surgeon with great flexibility in the placement of bone screws depending upon the spinal anatomy and pathology. The invention further contemplates a locking assembly to lock one or more bone screws within a respective screw hole. In one embodiment, the locking assembly includes a washer that is held to the plate by a staked locking screw.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: December 30, 2003
    Assignee: SDGI Holdings, Inc.
    Inventors: Robert A. Farris, Jeffrey Wade Poyner, Volker K. H. Sonntag, Regis W. Haid, Jr., Stephen M. Papadopoulos
  • Patent number: 6261582
    Abstract: Administration of a morphine-based analgesic paste directly to the epidural space during lumbar decompressive surgery significantly improves post-operative pain control, reduces prescribed analgesic consumption, and improves overall health perception for a period of up to 6 weeks following surgery. In a series of 60 patients no treatment related complications attributable to the paste were observed. This post-operative pain control strategy may provide a new gold-standard of care patients undergoing lumbar disectomy or laminectomy.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: July 17, 2001
    Assignee: C. R. Bard, Inc.
    Inventors: Charles W. Needham, R. John Hurlbert, Nicholas Theodore, Volker K. H. Sonntag
  • Patent number: 6152927
    Abstract: In one embodiment of the invention, an anterior fixation system includes a plate defining a plurality of screw holes, a number of screws and a number of locking assemblies for fixing the screws to the plate. The system includes two bone screws, a fixed angle screw and a variable angle screw, that are configured to extend through the same screw openings in the fixation plate. The surgeon can select either the fixed or variable angled screws to be implanted with a single plate and can place either type of screw into any of the screw holes along the plate. The fixation plate according to the invention can include several screw holes in various patterns that provide the surgeon with great flexibility in the placement of bone screws depending upon the spinal anatomy and pathology. The invention further contemplates a locking assembly to lock one or more bone screws within a respective screw hole. In one embodiment, the locking assembly includes a washer that is held to the plate by a staked locking screw.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: November 28, 2000
    Assignee: SDGI Holdings, Inc.
    Inventors: Robert A. Farris, Jeffrey Wade Poyner, Volker K. H. Sonntag, Regis W. Haid, Jr., Stephen M. Papadopoulos