| 摘要 |
Disclosed is an apparatus for the fixation of small bone fractures, comprising a washer with a central bore, the central bore having a diameter, and an external tapered thread for engaging an outer bone fragment, and a bone screw having a shaft with a thread with a mayor diameter less than the diameter of said central bore for engaging an inner bone fragment, and having a screw head larger than the central bore, wherein an upper portion near said screw head of the shaft is disposed within the central bore, and the screw head is disposed exterior the washer and engages a portion of the washer.
|
