Patents Assigned to Societe PSI
  • Application of an improved damper to an intervertebral stabilization device
    Patent number: 5375823
    Abstract: An improved damper, of the type comprising elements for progressively resisting, in exponential manner, the advance of a piston under the effect of a force of axial compression, which functions as a stop opposing any displacement of the piston beyond a predetermined value, in an intervertebral stabilization device.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: December 27, 1994
    Assignee: Societe PSI
    Inventor: Fernand Navas