Clamping device for vertebral locking rod

A clamping device for a vertebral locking rod comprising:

• an outer clamping member having opposing ends, said outer clamping member being formed with a U-shaped damping mount portion that is located between opposing inner sides of said outer clamping member and extends between the opposing ends of said outer clamping member, each of said opposing inner sides including an inclined fitting slot, at least one of said opposing inner sides at its inclined fitting slot being formed with a first retaining member;
• and
• an inner clamping member having opposing ends, said inner clamping member including opposing inclined fitting members and an arcuate fastening mount portion located between said fitting members, at least one of said fitting members being provided with a second retaining member, wherein said inner clamping member is adapted to be inserted in a predetermined direction and slidably positioned within said outer clamping member with each of said fitting members mating with a respective one of said fitting slots, said U-shaped clamping mount portion and said arcuate fastening mount portion defining a substantially cylindrical clamping hole adapted to receive a vertebral locking rod, and said first and second retaining members being interengaged to retain said inner clamping member within said outer clamping member.