Patents by Inventor Andrew O. Ransford

Andrew O. Ransford 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: 4841959
    Abstract: A device for fixation of the skull (15) to adjacent bones (18A . . . 18E) of the spine (19) comprises a loop (11) of substantially circular form connecting a pair of legs (12) generally perpendicular to the loop, outward kinks (14) being provided adjacent the junction of the loop and legs, whereby, with the loop secured to the skull by wires (16) and the legs secured to the spine by sublaminae wires (20), wires (20', 20") at both sides of the kinks (14) effect fixation of the skull in relation to the adjacent bones of the spine.
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: June 27, 1989
    Assignee: A. W. Showell (Surgicraft) Limited
    Inventor: Andrew O. Ransford
  • Patent number: 4836193
    Abstract: A device (10B) for fixation of a skull (20) to adjacent bones (21) of the spine has one generally circular bight (13B) in a curved plane starting generally perpendicular to the plane of two straight spaced complanar portions (11B) and curving away therefrom, and another bight (12B) of generally V-shape with its apex (14B) extending towards the substantially circular bight (13B) so that the apex (14B) of the V-shaped bight can be accommodated between the adjacent spinous processes (16D, 16E) closest to the skull (20) against which the generally circular bight (13B) lies.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: June 6, 1989
    Assignee: A. W. Showell (Surgicraft) Limited
    Inventor: Andrew O. Ransford