| abstract |
A surgical fixation device for fixation in a biological medium, the device comprising a first member having an internal longitudinal bore having an internal diameter, a second shaft member slidably disposed in the internal bore of the first member, the second shaft member having a distal end having an external diameter greater than the internal diameter of the first member, the distal end comprising a cam surface for engaging with an engaging surface of the first member, the first member being expandable adjacent a distal end thereof, the second shaft member having an engagement portion at a proximal end for engagement by an actuation tool for application of a proximally directed axial force to the shaft member, whereby application of the proximally directed axial force to the shaft member causes the cam surface to slidably engage the engaging surface and thereby cause the first member to expand radially thereby securing the first member with the shaft member therein in the biological medium. |