Patents Assigned to St. Francis Medical Technologies, Inc.
  • Publication number: 20050196420
    Abstract: A device for implantation between interspinous processes made of bioresorbable materials is described. The implant has a spacer that can be placed between adjacent spinous processes to limit the movement of the vertebrae. Once inserted between interspinous processes, the implant acts to limit extension (backward bending) of the spine without inhibiting the flexion (forward bending) of the spinal column. The device is used as an adjunct to repair or regeneration of an intervertebral disk.
    Type: Application
    Filed: November 23, 2004
    Publication date: September 8, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu
  • Publication number: 20050192586
    Abstract: This invention relates to tools for preparing vertebral bodies in the spine for the implantation of an artificial vertebral disk replacement and related method. A first tool is disclosed that prepares the vertebral bodies for implantation by cutting offset channels in the vertebral bodies. The second tool holds two plates of the implant during the implantation process. This invention also relates to an artificial vertebral disk replacement, a method of operation, and a method of implanting.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Charles Winslow, Scott Yerby, Steve Mitchell, John Flynn
  • Patent number: 6926728
    Abstract: The present invention generally relates to a dilator with a curved tip. The curved tip is machined through a specific range of diameters so that a physician can establish the diameter of the opening with the dilator inserted. The angle of the dilator also allows the physician to access the interspinous ligament through a minimally invasive opening in the patients back, minimizing the trauma caused to surrounding body tissue.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: August 9, 2005
    Assignee: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, John Flynn
  • Publication number: 20050154462
    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: Application
    Filed: November 5, 2004
    Publication date: July 14, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Charles Winslow, Scott Yerby, Steven Mitchell, John Flynn
  • Publication number: 20050149196
    Abstract: An intervertebral spinal disk replacement device which can be implanted via a lateral approach includes a first end plate, a second end plate, an articulating element and a limiter. The articulating element and limiter, which are situated between the two end plates, are integral to the second end plate. The articulating element with an articulating surface that is slidably positioned on the support surface of the first end plate and the limiter that protrudes from the upper surface of the second end plate, with the limiter being confined with a cavity within the first end plate. The degree of rotational movement of the first end plate relative to the second end plate is determined by the range of motion the limiter exhibits within the cavity. The implant may include keels that extend in a lateral direction with respect to the vertebral bodies on which the end plates abut.
    Type: Application
    Filed: December 3, 2004
    Publication date: July 7, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu
  • Publication number: 20050149193
    Abstract: An intervertebral implant has a fusion body with at least one keel that anchors the implant into cancellous bone of at least one vertebral body. A method for implantation includes lateral implantation of the implant.
    Type: Application
    Filed: November 19, 2004
    Publication date: July 7, 2005
    Applicant: St. Francis Medical Technology, Inc.
    Inventors: James Zucherman, Ken Hsu, Henry Klyce, Charles Winslow, Scott Yerby, Steve Mitchell, John Flynn
  • Publication number: 20050149192
    Abstract: An intervertebral implant has a fusion body with at least one keel that anchors the implant into cancellous bone of at least one vertebral body. A method for implantation includes lateral implantation of the implant.
    Type: Application
    Filed: November 19, 2004
    Publication date: July 7, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Henry Klyce, Charles Winslow, Scott Yerby, Steve Mitchell, John Flynn
  • Publication number: 20050143738
    Abstract: A laterally insertable spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy and other spinal ailments by expanding the volume in the spine canal and/or neural foramen. The implant provides a deployable second arm that converts between a first position for insertion and a second position for retention of the implant between adjacent spinous processes.
    Type: Application
    Filed: February 28, 2005
    Publication date: June 30, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Henry Klyce
  • Publication number: 20050143820
    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: Application
    Filed: November 5, 2004
    Publication date: June 30, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Charles Winslow, Scott Yerby, Steven Mitchell, John Flynn
  • Publication number: 20050143826
    Abstract: The present invention is directed to a device that is used to repair an injury or defect in the anulus of the intervertebral disk. The implant is characterized by having a flexible structure that is anchored to the vertebral bone. The flexible structure is connected with a patch that the flexible structure sustains over the injury or defect.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 30, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu
  • Publication number: 20050125065
    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: Application
    Filed: November 5, 2004
    Publication date: June 9, 2005
    Applicant: St. Francis Medical Technologies Inc.
    Inventors: James Zucherman, Ken Hsu, Steven Mitchell
  • Patent number: 6902566
    Abstract: Insertion instruments and a main body assembly and a universal wing to be inserted are provided, along with methods of using these instruments for the insertion of the spinal implants in patients to relieve the symptoms of, for example, spinal stenosis, injuries, and degenerative diseases of the spine. The instruments are simply designed and can be disassembled, making cleaning and sterilization easy and convenient. The instruments are designed to engage with and disengage from spinal implants easily, and use of the instrument in spinal implant surgery can be carried out with minimal surgical intervention and does not require general anesthesia. The main body assembly and the universal wing are designed to conveniently be secured to the insertion instruments.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 7, 2005
    Assignee: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Henry A. Klyce
  • Publication number: 20050113926
    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: November 5, 2004
    Publication date: May 26, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Steven Mitchell
  • Publication number: 20050010298
    Abstract: An implant for positioning between the spinous processes of cervical vertebrae include first and second wings for lateral positioning and a spacer located between the adjacent spinous processes. The implant can be positioned using minimally invasive procedures without modifying the bone or severing ligaments. The implant is shaped in accordance with the anatomy of the spine.
    Type: Application
    Filed: April 1, 2004
    Publication date: January 13, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James Zucherman, Ken Hsu, Charles Winslow, John Flynn, Steve Mitchell, Scott Yerby, Jay Markwart
  • Publication number: 20050010296
    Abstract: The present invention is directed to a device that can be placed between two vertebrae. The implant is characterized by having a first plate and a second plate with a crossbar therebetween. The crossbar fits within cavities on each of the first and second plates and allows for pivotal or rotational motion and also for twisting motion.
    Type: Application
    Filed: August 11, 2004
    Publication date: January 13, 2005
    Applicant: St. Francis Medical Technologies, Inc.
    Inventor: Steve Mitchell
  • Publication number: 20040220568
    Abstract: A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion. Methods for the implantation of a spine distraction device using lateral insertion are also contemplated.
    Type: Application
    Filed: March 1, 2004
    Publication date: November 4, 2004
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce
  • Publication number: 20040193159
    Abstract: Insertion instruments and a main body assembly and a universal wing to be inserted are provided, along with methods of using these instruments for the insertion of the spinal implants in patients to relieve the symptoms of, for example, spinal stenosis, injuries, and degenerative diseases of the spine. The instruments are simply designed and can be disassembled, making cleaning and sterilization easy and convenient. The instruments are designed to engage with and disengage from spinal implants easily, and use of the instrument in spinal implant surgery can be carried out with minimal surgical intervention and does not require general anesthesia. The main body assembly and the universal wing are designed to conveniently be secured to the insertion instruments.
    Type: Application
    Filed: April 5, 2004
    Publication date: September 30, 2004
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Henry A. Klyce
  • Patent number: 6796983
    Abstract: A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: September 28, 2004
    Assignee: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, T. Wade Fallin, Henry A. Klyce
  • Publication number: 20040172135
    Abstract: The present invention is directed to a device with that can be placed between two vertebrae. The implant is characterized by having a first plate and a second plates with a crossbar therebetween. The crossbar fits within cavities on each of the first and second plate and allows for pivotal or rotational motion and also for twisting motion.
    Type: Application
    Filed: October 14, 2003
    Publication date: September 2, 2004
    Applicant: St. Francis Medical Technologies, Inc.
    Inventor: Steve Mitchell
  • Publication number: 20040167520
    Abstract: A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion.
    Type: Application
    Filed: March 1, 2004
    Publication date: August 26, 2004
    Applicant: St. Francis Medical Technologies, Inc.
    Inventors: James F. Zucherman, Ken Y. Hsu, Henry A. Klyce