Patents by Inventor John Markwart

John 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).

  • Patent number: 8894686
    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 implant 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: Grant
    Filed: June 29, 2007
    Date of Patent: November 25, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8591546
    Abstract: A spinal implant adapted to be inserted into an interspinous space between adjacent spinous processes includes a proximal section, a central section, and a distal section disposed sequentially along a longitudinal axis. The distal section has feature(s) that allow the implant to be inserted laterally into the interspinous space, such as an approximately helical groove and/or a thread-like structure. The distal tip of the implant tapers inwardly, and may be rounded. The proximal section may include an outwardly extending wing or flange. The implant may include a main body that includes the wing or flange and a spacer slidably mated to the main body through the wing or flange.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: November 26, 2013
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, John J. Flynn, Steven T. Mitchell, Scott A. Yerby, John A. Markwart
  • Patent number: 8454659
    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 implant 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: Grant
    Filed: June 29, 2007
    Date of Patent: June 4, 2013
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8425530
    Abstract: Systems and method in accordance with the embodiments of the present invention can include an implant for positioning within a cervical facet joint for distracting the cervical spine, thereby increasing the area of the canals and openings through which the spinal cord and nerves must pass, and decreasing pressure on the spinal cord and/or nerve roots. The implant can be inserted laterally or posteriorly.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: April 23, 2013
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Charles J. Winslow, Steven T. Mitchell, John A. Markwart
  • Patent number: 8349013
    Abstract: A method for stabilizing at least one spinal motion segment includes an expandable spacer in a collapsed state into the interspinous space between superior and inferior vertebrae such that the spacer extends through the sagittal plane defined by the spinous processes of the superior and inferior vertebrae. The spacer has a flexible membrane defining an interior cavity. The method includes expanding the spacer to an expanded state by forcing a fill material in a fluid state into the cavity with the spacer disposed in the interspinous space, and thereafter solidifying the fill material to a solid state in the cavity. The method may be performed through a percutaneous penetration in the patient's skin and may cause the first and second vertebrae to be distracted.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: January 8, 2013
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Henry A. Klyce, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8273107
    Abstract: Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a spacer and a frame having a central body and a helical shaped wing extending from the central body. The frame can be positioned near about adjacent spinous processes, and can be rotated and urged so that the adjacent spinous processes pass within a groove of the wing, thereby allowing the wing to be arranged on an opposite side of the adjacent spinous processes. The spacer can then be arranged over the frame so that the spacer contacts and distracts the spinous processes, thereby limiting relative movement of the adjacent spinous processes during extension.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: September 25, 2012
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, John J. Flynn, Steven T. Mitchell, Scott A. Yerby, John A. Markwart
  • Patent number: 8221463
    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 implant 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: Grant
    Filed: May 31, 2007
    Date of Patent: July 17, 2012
    Assignee: Kyphon SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Publication number: 20120083843
    Abstract: A spinal implant adapted to be inserted into an interspinous space between adjacent spinous processes includes a proximal section, a central section, and a distal section disposed sequentially along a longitudinal axis. The distal section has feature(s) that allow the implant to be inserted laterally into the interspinous space, such as an approximately helical groove and/or a thread-like structure. The distal tip of the implant tapers inwardly, and may be rounded. The proximal section may include an outwardly extending wing or flange. The implant may include a main body that includes the wing or flange and a spacer slidably mated to the main body through the wing or flange.
    Type: Application
    Filed: December 7, 2011
    Publication date: April 5, 2012
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, John J. Flynn, Steven T. Mitchell, Scott A. Yerby, John A. Markwart
  • Patent number: 8147548
    Abstract: Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a spacer and a frame having a central body and a helical shaped wing extending from the central body. The frame can be positioned near about adjacent spinous processes, and can be rotated and urged so that the adjacent spinous processes pass within a groove of the wing, thereby allowing the wing to be arranged on an opposite side of the adjacent spinous processes. The spacer can then be arranged over the frame so that the spacer contacts and distracts the spinous processes, thereby limiting relative movement of the adjacent spinous processes during extension.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: April 3, 2012
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, John J. Flynn, Steve Mitchell, Scott A. Yerby, John A. Markwart
  • Patent number: 8128702
    Abstract: An embodiment of a system in accordance with the present invention can include an implant having a spacer with a thickness and a wing, wherein a first configuration of the wing has a first height substantially similar to the thickness and wherein the wing is adapted to be selectably arranged in a second configuration such that the wing has a second height greater than the first height. A periphery of the implant has a shape generally conformal with a shape of an inner surface of a cannula and a cross-sectional diameter smaller than an inner diameter of the cannula. The cannula is inserted such that a proximal end of the cannula is arranged between the adjacent spinous processes. The implant is then urged into position between the adjacent spinous processes by way of the cannula, and subsequently arranged in a second configuration to fix the implant in position.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 6, 2012
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8109972
    Abstract: An embodiment of a system in accordance with the present invention can include an implant having a spacer with a thickness and a wing, wherein a first configuration of the wing has a first height substantially similar to the thickness and wherein the wing is adapted to be selectably arranged in a second configuration such that the wing has a second height greater than the first height. A periphery of the implant has a shape generally conformal with a shape of an inner surface of a cannula and a cross-sectional diameter smaller than an inner diameter of the cannula. The cannula is inserted such that a proximal end of the cannula is arranged between the adjacent spinous processes. The implant is then urged into position between the adjacent spinous processes by way of the cannula, and subsequently arranged in a second configuration to fix the implant in position.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: February 7, 2012
    Assignee: Kyphon SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8092535
    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 implant 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: Grant
    Filed: June 26, 2007
    Date of Patent: January 10, 2012
    Assignee: Kyphon SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8070778
    Abstract: Systems and method in accordance with embodiments of the present invention can includes an implant having an initiating piece and a distraction piece. The initiating piece can include a lower distraction element, a second wing, a lower portion of a spacer, and a lower portion of a first wing. The initiating piece can be positioned such that an interspinous ligament of the targeted motion segment is disposed between the first and second wing. The distraction piece can include an upper distraction element, an upper portion of the spacer, and an upper portion of the first wing, and can be mated with the initiating piece by mating a rail of the distraction piece with a slot of the initiating piece, thereby disposing the implant between adjacent spinous processes.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: December 6, 2011
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steve Mitchell, John A. Markwart
  • Publication number: 20110288556
    Abstract: Systems and method in accordance with the embodiments of the present invention can include an implant for positioning within a cervical facet joint for distracting the cervical spine, thereby increasing the area of the canals and openings through which the spinal cord and nerves must pass, and decreasing pressure on the spinal cord and/or nerve roots. The implant can be inserted laterally or posteriorly.
    Type: Application
    Filed: August 4, 2011
    Publication date: November 24, 2011
    Applicant: Kyphon SARL
    Inventors: Charles J. Winslow, Steven T. Mitchell, John A. Markwart
  • Patent number: 8048117
    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: Grant
    Filed: September 23, 2005
    Date of Patent: November 1, 2011
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 8029540
    Abstract: Systems and method in accordance with the embodiments of the present invention can include an implant for positioning within a cervical facet joint for distracting the cervical spine, thereby increasing the area of the canals and openings through which the spinal cord and nerves must pass, and decreasing pressure on the spinal cord and/or nerve roots. The implant can be inserted laterally or posteriorly.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: October 4, 2011
    Assignee: Kyphon SARL
    Inventors: Charles J. Winslow, Steven T. Mitchell, John A. Markwart
  • Patent number: 8012209
    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. A binder aligner aligns the binder with the implant stabilizing the implant, binder and the adjacent vertebrae.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: September 6, 2011
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, John J. Flynn, Steven T. Mitchell, Scott A. Yerby, John A. Markwart
  • Patent number: 8007537
    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 implant 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: Grant
    Filed: June 29, 2007
    Date of Patent: August 30, 2011
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 7959652
    Abstract: An embodiment of a system in accordance with the present invention can include an implant having a spacer with a thickness and a wing, wherein a first configuration of the wing has a first height substantially similar to the thickness and wherein the wing is adapted to be selectably arranged in a second configuration such that the wing has a second height greater than the first height. A periphery of the implant has a shape generally conformal with a shape of an inner surface of a cannula and a cross-sectional diameter smaller than an inner diameter of the cannula. The cannula is inserted such that a proximal end of the cannula is arranged between the adjacent spinous processes. The implant is then urged into position between the adjacent spinous processes by way of the cannula, and subsequently arranged in a second configuration to fix the implant in position.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 14, 2011
    Assignee: Kyphon SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Publication number: 20110112577
    Abstract: An embodiment of a system in accordance with the present invention can include an implant having a spacer with a thickness and a wing, wherein a first configuration of the wing has a first height substantially similar to the thickness and wherein the wing is adapted to be selectably arranged in a second configuration such that the wing has a second height greater than the first height. A periphery of the implant has a shape generally conformal with a shape of an inner surface of a cannula and a cross-sectional diameter smaller than an inner diameter of the cannula. The cannula is inserted such that a proximal end of the cannula is arranged between the adjacent spinous processes. The implant is then urged into position between the adjacent spinous processes by way of the cannula, and subsequently arranged in a second configuration to fix the implant in position.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 12, 2011
    Applicant: KYPHON SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart