Patents by Inventor Steven T. Mitchell

Steven T. Mitchell 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: 20100030224
    Abstract: A surgical tool and method is provided for connecting a dynamic vertical rod to a dynamic bone anchor. The tool has an internal shaft and an external sleeve arranged coaxially. The shaft can be turned relative to the sleeve. The sleeve has a head which engages the ball of a dynamic vertical rod. The shaft has a head which engages the deflectable post of the dynamic bone anchor. The tool is designed to turn the ball relative to the post securing the ball to the post. Optionally the post has a breakaway portion and the tool provided sufficient torque to remove the breakaway portion and also includes a mechanism for securing and retrieving the breakaway portion. The connection tool is sized to fit through a cannula to the operative site to allow minimally invasive implantation of the dynamic bone anchor.
    Type: Application
    Filed: September 24, 2009
    Publication date: February 4, 2010
    Applicant: Spartek Medical, Inc.
    Inventors: Charles J. Winslow, Steven T. Mitchell, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, H. Adam R. Klyce
  • Publication number: 20100030275
    Abstract: A configurable dynamic spinal rod for connecting levels of a dynamic stabilization system to support the spine while providing for the preservation of spinal motion. Embodiments of the dynamic stabilization system have an anchor system, a deflection system, a vertical rod system and a connection system. The deflection system provides dynamic stabilization and load-sharing. The dynamic spinal rod connects different levels of the construct in a multilevel construct. The dynamic spinal rod cooperates with the deflection system to further reduce stress exerted upon the bone anchors and spinal anatomy. A configurable lock is provided which can selectably lock an angle between the dynamic spinal rod and a dynamic bone anchor.
    Type: Application
    Filed: September 24, 2009
    Publication date: February 4, 2010
    Applicant: Spartek Medical, Inc.
    Inventors: Charles J. Winslow, Steven T. Mitchell, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, H. Adam R. Klyce
  • Publication number: 20100030270
    Abstract: A versatile dynamic spinal rod and bone anchor assembly for use in a dynamic stabilization system to support the spine while providing for the preservation of spinal motion. Alternative embodiments can be used for spine fusion. The dynamic bone anchor provides load sharing while preserving range of motion and reducing stress exerted upon the bone anchors and spinal anatomy. The dynamic bone anchor includes a deflectable post connected by a ball-joint to a threaded anchor. The dynamic rod connects different levels of the construct in a multilevel construct. The dynamic rod is connected to the dynamic bone anchor by a joint which permits relative movement of the deflectable post and rod reducing the stress exerted upon the bone anchors and spinal anatomy.
    Type: Application
    Filed: September 24, 2009
    Publication date: February 4, 2010
    Applicant: Spartek Medical, Inc.
    Inventors: Charles J. Winslow, Steven T. Mitchell, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, H. Adam R. Klyce
  • Patent number: 7601170
    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: February 8, 2005
    Date of Patent: October 13, 2009
    Assignee: Kyphon SARL
    Inventors: Charles J. Winslow, James F. Zucherman, Ken Y. Hsu, Steven T. Mitchell, Scott A. Yerby, John J. Flynn
  • Patent number: 7591851
    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: February 8, 2005
    Date of Patent: September 22, 2009
    Assignee: Kyphon SARL
    Inventors: Charles J. Winslow, James F. Zucherman, Ken Y. Hsu, Steven T. Mitchell, Scott A. Yerby, John J. Flynn
  • Patent number: 7520899
    Abstract: The present invention is directed to an implant that can be placed between two adjacent vertebral bodies using a lateral insertion method. The implant is characterized as having a first end plate and a second end plate which a crossbar spacer therebetween. The crossbar spacer preferably fits within a channel on the inner surfaces of the first end plate and the second end plate, whereby the crossbar spacer allows pivots, twisting and/or rotational movement of the spine. The first end plate and the second end plate include a keel extending therefrom, whereby the keel traverses longitudinally between a first lateral side and a second opposed lateral side and is substantially perpendicular to the sagittal plane of the patient's spine.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: April 21, 2009
    Assignee: Kyphon SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Steven T. Mitchell
  • Patent number: 7503935
    Abstract: An implant that can be placed between two vertebrae using a lateral insertion method is described. The implant is characterized by having a first end plate and a second end plate with a hemi-cylindrical spacer extending from the second end plate. The hemi-cylindrical spacer fits within a socket on the first end plate and allows for pivotal or rotational motion and also for twisting motion.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: March 17, 2009
    Assignee: Kyphon SARL
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, Steven T. Mitchell, John J. Flynn
  • Publication number: 20080306541
    Abstract: A dynamic stabilization, motion preservation spinal implant system includes a deflection rod system implant. The system is modular so that various constructs and configurations can be created and customized to a patient.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 11, 2008
    Applicant: SPARTEK MEDICAL, INC.
    Inventors: Steven T. Mitchell, Charles J. Winslow, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Donald L. Cain, Henry A. Klyce, H. Adam R. Klyce
  • Publication number: 20080306525
    Abstract: A dynamic stabilization, motion preservation spinal implant system includes a deflection rod system implant. The system is modular so that various constructs and configurations can be created and customized to a patient.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 11, 2008
    Applicant: SPARTEK MEDICAL, INC.
    Inventors: Steven T. Mitchell, Charles J. Winslow, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Donald L. Cain, Henry A. Klyce, H. Adam R. Klyce
  • Publication number: 20080306542
    Abstract: A dynamic stabilization, motion preservation spinal implant system includes a deflection rod system implant. The system is modular so that various constructs and configurations can be created and customized to a patient.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 11, 2008
    Applicant: SPARTEK MEDICAL, INC.
    Inventors: Steven T. Mitchell, Charles J. Winslow, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Donald L. Cain, Henry A. Klyce, H. Adam R. Klyce
  • Publication number: 20080306540
    Abstract: A dynamic stabilization, motion preservation spinal implant system includes a deflection rod system implant. The system is modular so that various constructs and configurations can be created and customized to a patient.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 11, 2008
    Applicant: SPARTEK MEDICAL, INC.
    Inventors: Steven T. Mitchell, Charles J. Winslow, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Donald L. Cain, Henry A. Klyce, H. Adam Klyce
  • Publication number: 20080221692
    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: Application
    Filed: June 29, 2007
    Publication date: September 11, 2008
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Publication number: 20080177311
    Abstract: In an embodiment of the present invention, a tool resembles an implant for positioning within a cervical facet joint. The tool can be used for distracting and/or sizing the cervical facet joint and thereby distracting the cervical spine and 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 tool can be inserted laterally or posteriorly.
    Type: Application
    Filed: October 30, 2006
    Publication date: July 24, 2008
    Applicant: ST. FRANCIS MEDICAL TECHNOLOGIES, INC.
    Inventors: Charles J. Winslow, Steven T. Mitchell, Scott A. Yerby
  • Publication number: 20080177391
    Abstract: An implant system for implantation between adjacent spinous processes for the relief of pain associated with the spine. The implant has a series of spacers which may be inserted over a shaft located between adjacent spinous processes thus allowing the implant to be assembled in situ. The spacers may rotate on the shaft relative to the wings. To minimize trauma to the patient, each spacer has a tapered tissue expander to distract the opening between the spinous processes during assembly. The shaft is connected to a wing, and a second wing or deployable wing may be inserted over the shaft and locked into place.
    Type: Application
    Filed: October 18, 2007
    Publication date: July 24, 2008
    Applicant: ST. FRANCIS MEDICAL TECHNOLOGIES, INC.
    Inventors: Steven T. Mitchell, Charles J. Winslow, Scott A. Yerby
  • Publication number: 20080177390
    Abstract: A disk replacement endoprosthesis and a procedure for implantation of the endoprosthesis to treat pain, nerve root compression, and neural injury caused by degeneration or injury to vertebral disks. The endoprosthesis may include an intervertebral wedge or other body having a lead-in distractor. A fastening plate may be attached to the intervertebral wedge by a joint such that the first fastening plate may move from a first configuration in which the first fastening plate is in-line with the intervertebral wedge to facilitate insertion of the endoprosthesis to a second configuration in which the first fastening plate is in contact with an anterior surface of the inferior vertebral body for attachment thereto.
    Type: Application
    Filed: October 18, 2007
    Publication date: July 24, 2008
    Applicant: ST. FRANCIS MEDICAL TECHNOLOGIES, INC.
    Inventors: Steven T. Mitchell, Scott A. Yerby
  • Publication number: 20080177298
    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, a binder for limiting or preventing flexion motion of the targeted motion segment, and a tensioner tool for applying tension to the binder. In one embodiment, the tensioner engages the implant and draws the binder through the capture device and applies tension to the binder. In one embodiment, the tensioner tool has a tension gauge with which a physician may measure the tension applied to the binder. The binder may be grasped by the capture device when the desired tension is achieved.
    Type: Application
    Filed: October 18, 2007
    Publication date: July 24, 2008
    Applicant: ST. FRANCIS MEDICAL TECHNOLOGIES, INC.
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, Steven T. Mitchell, John J. Flynn, John A. Markwart
  • Publication number: 20080177272
    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: Application
    Filed: July 3, 2007
    Publication date: July 24, 2008
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, John J. Flynn, Steven T. Mitchell, Scott A. Yerby, John A. Markwart
  • Publication number: 20080140208
    Abstract: The present invention is directed to an implant that can be placed between two adjacent vertebral bodies using a lateral insertion method. The implant is characterized as having a first end plate and a second end plate which a crossbar spacer therebetween. The crossbar spacer preferably fits within a channel on the inner surfaces of the first end plate and the second end plate, whereby the spacer allows pivots, twisting and/or rotational movement of the spine. The first end plate and the second end plate include a keel extending therefrom, whereby the keel traverses longitudinally between a first lateral side and a second opposed lateral side and is substantially perpendicular to the sagittal plane of the patient's spine.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 12, 2008
    Inventors: James F. Zucherman, Ken Y. Hsu, Steven T. Mitchell
  • Publication number: 20080108990
    Abstract: An embodiment of a system in accordance with the present invention can include an implant having a first wing, a spacer with a thickness and a second wing, wherein a first configuration of the second wing has a first height substantially similar to the thickness and wherein the second wing is adapted to be selectably arranged in a second configuration such that the second wing has a second height greater than the first height. The implant is then urged into position between adjacent spinous processes and subsequently arranged in a second configuration to fix the implant in position.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 8, 2008
    Applicant: ST. FRANCIS MEDICAL TECHNOLOGIES, INC.
    Inventors: Steven T. Mitchell, Scott A. Yerby, James F. Zucherman, Ken Y. Hsu, Henry A. Klyce, Charles J. Winslow, John J. Flynn, John A. Markwart
  • Patent number: 7320707
    Abstract: The present invention is directed to an implant that can be placed between two adjacent vertebral bodies using a lateral insertion method. The implant is characterized as having a first end plate and a second end plate which a crossbar spacer therebetween. The crossbar spacer preferably fits within a channel on the inner surfaces of the first end plate and the second end plate, whereby the spacer allows pivots, twisting and/or rotational movement of the spine. The first end plate and the second end plate include a keel extending therefrom, whereby the keel traverses longitudinally between a first lateral side and a second opposed lateral side and is substantially perpendicular to the sagittal plane of the patient's spine.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: January 22, 2008
    Assignee: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Steven T. Mitchell