Patents by Inventor R. Charles Ray

R. Charles Ray 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: 6520990
    Abstract: An implant system for spinal fixation includes a fastener having an upper portion, a lower portion configured to engage a vertebra, and a shoulder between the upper and lower portions. A connector is provided for engaging the fastener to an elongated rod that is positionable along the spinal column laterally from a line containing the axis of the fastener. The connector includes a first portion for engaging the upper portion of the fastener adjacent the shoulder, and an integral second portion having a surface for engaging the elongated spinal rod. The connector further includes an elongated slot between the first portion and the second portion to permit relative lateral adjustment between the rod and the upper portion of the fastener. A threaded fastener is provided for clamping the rod against the surface of the connector. In one embodiment, the fastener includes an eyebolt defining an aperture for receiving the spinal rod.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: February 18, 2003
    Assignee: SDGI Holdings, Inc.
    Inventor: R. Charles Ray
  • Patent number: 6458131
    Abstract: An apparatus and method for the treatment of abnormal spinal curvature, such as, scoliosis, is disclosed. The apparatus includes a plurality of clamp sets and a single rail. The clamp set for affixing to a vertebra has a transverse plate having a center region and a first and a second end. The first end has a first pedicle extension, and the second end has a second pedicle extension. At least one pedicle extension is used to transmit a downward force during rotation of the vertebra. The clamp set also includes a first laminar hook located on the first end of the plate and is integral with the plate to hook on a superior portion of a first lamina of a vertebra. The clamp set also includes a second laminar hook to hook from an opposite direction on an inferior portion of a second lamina of the vertebra. The second hook is adjustable to allow clamping and unclamping of the clamp set. The clamp set includes a rail coupling member having a slot to receive a rail.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: October 1, 2002
    Assignee: Salut, Ltd.
    Inventor: R. Charles Ray
  • Publication number: 20020019633
    Abstract: A tool for correcting abnormal curvatures of the spine is described. The tool includes a first member having a handle portion, a hose portion, with a neck portion connecting the handle portion to the hose portion. A second member likewise has a handle portion, and a hose portion with a neck portion connecting the handle portion to the hose portion. The two members are connected at the neck portions, wherein the hose portions include an open-sided elongated arm with a locking element to lock onto a vertebral clamp set, wherein the clamp set has a longitudinal rail attached to it after adjustment with the tool.
    Type: Application
    Filed: August 27, 2001
    Publication date: February 14, 2002
    Inventor: R. Charles Ray
  • Patent number: 6197028
    Abstract: A sacral implant system includes first and second sacral plates that are affixed on opposite sides of the sacrum adjacent the lumbosacral junction. The sacral plates include at least a pedicle and an oblique mounting means for rigidly affixing the sacral plates to the sacrum. First and second fixation rods extend in a superior direction along the lumbar portion of the spine. One or more connecting members tie the rods together. The superior most vertebra to be fixed is tied to the implant system with a special fixation plate and pedicle screw. Conventional vertebra hooks can also be used as necessary. Intermediate vertebra are tied to the system with a straight fixation plate and pedicle screw.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: March 6, 2001
    Assignee: SDGI Holdings, Inc.
    Inventors: R. Charles Ray, Richard B. Ashman
  • Patent number: 5531747
    Abstract: A system for achieving reduction of curvature of the lumbar region of the spine associated with spondylolisthesis includes transverse plates affixed to vertebrae L4 and L5 and sacral plates affixed to opposite sides of the sacrum. These plates in combination with the longitudinal plate along the posterior anterior plane in which the spinous processes lie allows for effective reduction of the curvature and secure fixation of this region of the spine. The transverse plates include textured surfaces which allow them to mate in a manner which prevents undesirable slippage therebetween. The system is also compact and does not interfere with the paraspinal muscles which run along either side of the spinous processes.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 2, 1996
    Assignee: Danek Medical Inc.
    Inventor: R. Charles Ray
  • Patent number: 5531745
    Abstract: A system for achieving reduction of curvature of the lumbar region of the spine associated with spondylolisthesis includes transverse plates affixed to vertebrae L4 and L5 and sacral plates affixed to opposite sides of the sacrum. These plates in combination with the longitudinal plate along the posterior anterior plane in which the spinous processes lie allows for effective reduction of the curvature and secure fixation of this region of the spine. The transverse plates include textured surfaces which allow them to mate in a manner which prevents undesirable slippage therebetween. The system is also compact and does not interfere with the paraspinal muscles which run along either side of the spinous processes.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: July 2, 1996
    Assignee: Danek Medical, Inc.
    Inventor: R. Charles Ray
  • Patent number: 5527312
    Abstract: A spinal fixation system comprises a pair of facet screws that extend through the facet joint from the inferior facet of a superior vertebra and into the base of the transverse process of the immediately inferior vertebra. A pair of stabilizing bars are operatively coupled to the screws adjacent their heads. The bars carry fingers that extend in a superior direction and loop over the superior aspect of the pedicle of the superior vertebra. The stabilizing bars thus stabilize the facet screws and prevent their tendency to toggle, thereby conjunctively stabilizing the superior vertebra to the immediately inferior vertebra, for example, to facilitate the healing of a fusion.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: June 18, 1996
    Assignee: Salut, Ltd.
    Inventor: R. Charles Ray
  • Patent number: 5470333
    Abstract: A system for achieving reduction of curvature of the lumbar region of the spine associated with spondylolisthesis includes a hook assembly attached to vertebra L4, transverse plates affixed to vertebrae L4 and L5, and sacral plates affixed to opposite sides of the sacrum. The hooks and the plates in combination with the longitudinal plate along the posterior anterior plane in which the spinous processes lie allows for effective reduction of the curvature and secure fixation of this region of the spine. A related system for stabilizing the cervical region of the spine includes transverse plates affixed to vertebrae C3, C4, and C5. These plates in combination with a longitudinal plate allows for effective stabilization. The transverse plates include textured surfaces that allow them to mate in a manner which prevents undesirable slippage therebetween. The system is also compact and does not interfere with the paraspinal muscles which run along either side of the spinous processes.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: November 28, 1995
    Assignee: Danek Medical, Inc.
    Inventor: R. Charles Ray
  • Patent number: 5385565
    Abstract: A tool and method for derotating a scoliotic spine while it is being manipulated from a scoliotic configuration to a kyphotic configuration. The tool is used to apply a derotating force to the convex side of the scoliotic spine. The method uses the tool to reduce the derotation of a scoliotic spine.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: January 31, 1995
    Assignee: Danek Medical, Inc.
    Inventor: R. Charles Ray
  • Patent number: 5300073
    Abstract: A sacral implant system includes first and second sacral plates that are affixed on opposite sides of the sacrum adjacent the lumbosacral junction. The sacral plates include at least a pedicle and an oblique mounting means for rigidly affixing the sacral plates to the sacrum. First and second fixation rods extend in a superior direction along the lumbar portion of the spine. One or more connecting members tie the rods together. The superior most vertebra to be fixed is tied to the implant system with a special offset fixation plate and pedicle screw. Conventional vertebra hooks can also be used as necessary. Intermediate vertebra are tied to the system with a straight fixation plate and pedicle screw.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: April 5, 1994
    Assignee: Salut, Ltd.
    Inventors: R. Charles Ray, Richard B. Ashman
  • Patent number: 5282737
    Abstract: A candle snuffing apparatus and method are disclosed in the form of tongs having wettable snuffing surfaces and means for wetting the snuffing surfaces. Operation of the tongs upon a candle flame extinguishes the flame and simultaneously cools the wick, preventing smoking of the wick.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: February 1, 1994
    Inventor: R. Charles Ray
  • Patent number: 5281223
    Abstract: A tool and method for derotating a scoliotic spine while it is being manipulated from a scoliotic configuration to a kyphotic configuration. The tool is used to apply a derotating force to the convex side of the scoliotic spine. The method uses the tool to reduce the derotation of a scoliotic spine.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: January 25, 1994
    Inventor: R. Charles Ray
  • Patent number: 5127912
    Abstract: A sacral implant system includes first and second sacral plates that are affixed on opposite sides of the sacrum adjacent the lumbosacral junction. Pedicle, lateral and oblique mounting means are provided for rigidly affixing the sacral plates to the sacrum. First and second fixation rods extend in a superior direction along the lumbar portion of the spine. One or more connecting members tie the rods together. The superior most vertebra to be fixed is tied to the implant system with a special offset fixation plate and pedicle screw. Conventional vertebra hooks can also be used as necessary. Intermediate vertebra are tied to the system with a straight fixation plate and pedicle screw.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: July 7, 1992
    Assignee: R. Charles Ray
    Inventors: R. Charles Ray, Richard B. Ashman
  • Patent number: 5125396
    Abstract: A surgical retractor of the type used to retract tissue or muscles during a surgical operation. A retractor (20) comprises an outer ring (24) having a downwardly extending outer arcuate blade (24a) and an inner ring (22) having a downwardly extending inner arcuate blade (22a). The inner ring is nested within the outer ring such that the inner arcuate blade is rotatable from a first position overlapped to the outer arcuate blade, to a second position in which it is diametrically opposite the outer blade. A first handle (26) is used to hold the outer ring while a second handle (28) rotates the inner ring. The surgical retractor is inserted into an incision with the arcuate blades in the first position and the outer and inner rings are rotated to spread muscle and tissue.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: June 30, 1992
    Inventor: R. Charles Ray