| 主权项 |
1. An orthopedic fixation device comprising:
a coupling element, wherein the coupling element comprises a bore there through; a bone fastener, wherein the bone fastener comprises a head and an extension that extends from the head, wherein the head is configured for loading into the coupling element through the bottom of the bore; a clamp configured to receive the head of the bone fastener; and a saddle configured to engage the clamp and disposed on the clamp, wherein, upon application of a force on top of the saddle, the saddle presses into the clamp to lock the coupling element to the bone fastener, and wherein prior to the application of the force, the coupling element may be moved in a polyaxial manner with respect to the bone fastener. |
