Patents by Inventor John A. Markwart

John A. Markwart 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: 20060264938
    Abstract: Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the distraction guide can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant.
    Type: Application
    Filed: March 17, 2006
    Publication date: November 23, 2006
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Charles Winslow, John Flynn, Steven Mitchell, Scott Yerby, John Markwart
  • Publication number: 20060089718
    Abstract: Systems and method in accordance with embodiments of the present invention can includes an implant having a spacer with an expandable portion. An insert can be positioned within a groove of the spacer to distract the expandable portion away from the main portion of the spacer. The expandable portion can optionally include a grip that can at least partially deform to conform to a contour of a spinous process to provide a frictional grip to prevent the implant from shifting position. Implants in accordance with the present invention can also include a binder that can be arranged around the adjacent spinous processes to limit flexion movement.
    Type: Application
    Filed: September 23, 2005
    Publication date: April 27, 2006
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Henry Klyce, Charles Winslow, Scott Yerby, John Flynn, Steve Mitchell, John Markwart
  • Publication number: 20060064166
    Abstract: Systems in accordance with embodiments of the present invention can include an implant comprising a spacer for defining a minimum space between adjacent spinous processes, a distraction guide for piercing and distracting an interspinous ligament during implantation, and a binder for limiting or preventing flexion motion of the targeted motion segment. The binder can be secured to a brace associated with the implant during implantation by a capture device. In one embodiment, the capture device includes a fixed piece extending from the brace and a slidable piece associated with the fixed piece. A fastener can be rotated to pinch the binder between the slidable piece and a wall of the brace, securing the binder. A physician need not know the length of the binder prior to implantation, reducing the time required to perform a procedure.
    Type: Application
    Filed: March 31, 2005
    Publication date: March 23, 2006
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Henry Klyce, Charles Winslow, Scott Yerby, John Flynn, Steven Mitchell, John Markwart
  • Publication number: 20060064165
    Abstract: Systems in accordance with embodiments of the present invention can include an implant comprising a spacer for defining a minimum space between adjacent spinous processes, a distraction guide for piercing and distracting an interspinous ligament during implantation, and a binder for limiting or preventing flexion motion of the targeted motion segment. The binder can be secured to a brace associated with the implant during implantation by a capture device. In one embodiment, the capture device includes a fixed piece extending from the brace and a slidable piece associated with the fixed piece. A fastener can be rotated to pinch the binder between the slidable piece and a wall of the brace, securing the binder. A physician need not know the length of the binder prior to implantation, reducing the time required to perform a procedure.
    Type: Application
    Filed: March 31, 2005
    Publication date: March 23, 2006
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Henry Klyce, Charles Winslow, John Flynn, Steve Mitchell, Scott Yerby, John Markwart
  • Publication number: 20050125061
    Abstract: A system and method for replacing degenerated spinal disks in accordance with the present invention can substitute for interbody fusion techniques by replacing degenerated spinal disks with artificial spinal disks. In one embodiment, the system can comprise one or more artificial spinal disks, each comprising an upper and lower housing, a first spacer and a second spacer partially enclosed by a cavity formed by the housings, and a shaft with a spring positioned between the first spacer and the second spacer such that the spacers are urged apart.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Inventors: James Zucherman, Ken Hsu, Charles Winslow, Scott Yerby, John Flynn, Steve Mitchell, John Markwart