Device for supporting the spinal column
First Claim
Patent Images
1. A device for supporting a spinal column, comprising:
- a screw having a U-shaped head, said head being internally threaded;
a joining element received within said head;
an externally threaded bolt received within and threadedly engaging said head, and engaging said joining element to block relative movement between said joining element and said screw; and
a cap covering an upper outer portion of said U-shaped head to avoid spreading of said head upon tightening of said bolt in said head.
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Abstract
A device for supporting a spinal column includes a screw having a U-shaped head, a joining element received within the head, a threaded bolt received within and threadedly engaging the head, and a cap covering an upper portion of the head. The head is internally threaded. The threaded bolt engages the joining element to block relative movement between the joining element and the screw. The cap avoids spreading of the head upon tightening of the bolt in the head.
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Citations
13 Claims
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1. A device for supporting a spinal column, comprising:
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a screw having a U-shaped head, said head being internally threaded; a joining element received within said head; an externally threaded bolt received within and threadedly engaging said head, and engaging said joining element to block relative movement between said joining element and said screw; and a cap covering an upper outer portion of said U-shaped head to avoid spreading of said head upon tightening of said bolt in said head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification