DYNAMIC SCREW SYSTEM
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United States of America Patent
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-
N/A
Issued Date -
Mar 12, 2009
app pub date -
Sep 10, 2007
filing date -
Sep 10, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A dynamic screw system for stabilizing a vertebral body includes a bone screw adapted to connect to the vertebral body, the bone screw including an open concave head, a connecting element coupled to the bone screw, a joint element coupled around a middle cylindrical portion of the connecting element, an elongated bar element coupled to the upper spherical portion of the connecting element, and a pin adapted to fit inside the elongated bar element and a slot of the connecting element. The connecting element may include an upper spherical portion including a first diameter, a middle cylindrical portion including a second diameter less than the first diameter, and a lower spherical portion having a plurality of outwardly expandable legs adapted to lock into the open concave head of the bone screw.
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