| 摘要 |
A bone plate apparatus of the present invention includes a plate having a slot extending between the superior and inferior surfaces of the plate, and a rim extending about the slot which includes an interrupted surface, a fastener including a shaft formed for extension into the bone, a collar coupled to the shaft having an interrupted surface which mates with the interrupted surface of the rim of the slot, and a head coupled to the collar for movement in the slot, and a nut forred to cooperate with the head of the fastener to couple the interrupted surfaces of the fastener and the rim together, thereby locking the head in a fixed position within the slot.
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