Patent ID: 8425566
Filing Date: 2013-04-23
Classification: A61B

Abstract:
1. An apparatus, comprising: a main central member; a first generally C-shaped lock nut member having an internal axial bore portion; the first generally C-shaped lock nut member being connected to a first end of the main central member; first connection means for axially connecting the first generally C-shaped lock nut member and the main central member to permit free relative rotation and limited axial displacement therebetween while preventing total separation thereof; a second generally C-shaped lock nut member having an internal axial bore portion; the second generally C-shaped lock nut member being connected to a second end of the main central member; second connection means for axially connecting the second generally C-shaped lock nut member and the main central member to permit free relative rotation and limited axial displacement therebetween while preventing total separation thereof; the main central member and the first and second generally C-shaped lock nut members are shaped and dimensioned to permit passage therethrough of an externally-threaded rod member; said internal axial bore portions threadedly engagable with the externally-threaded rod member; said main central member being provided with a smooth unthreaded axial bore portion which provides a predetermined clearance between said main central member and the externally-threaded rod member; an anchoring device extending from the main central member; and the anchoring device permitting anchoring the apparatus to an external member.