Patents Represented by Attorney, Agent or Law Firm Joseph P. Erics, Esq.
  • Intervertebral spacer device having a slotted domed arch strip spring
    Patent number: 6669731
    Abstract: An intervertebral spacer device having a pair of opposing plates for seating against opposing vertebral bone surfaces, separated by a spring mechanism. The preferred spring mechanism is a slotted domed arch strip spring which is coupled to the upper plate by set screws. The spring includes a socket formed in the peak thereof and mounts onto a ball-shaped head extending outwardly from the lower plate. The spring and post members are thereby flexibly coupled such that the upper and lower plates may rotate relative to one another.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: December 30, 2003
    Assignee: Spinecore, Inc.
    Inventors: James D. Ralph, Stephen Tatar, Joseph P. Errico