Inventors:
Terry Johnston - Redwood City CA, US
Fred Geisler - Aurora IL, US
Assignee:
Rhausler, Inc. - San Carlos CA
International Classification:
A61B 17/56, A61B 17/58, A61B 17/60, A61B 17/84, A61B 17/80, A61B 17/86, A61B 17/88
US Classification:
606280, 606 86, 606 87, 606 96, 606 98, 606281, 606323, 606902, 606903, 606904, 606905, 606906, 606915
Abstract:
A device, system and method for securing a plate to a bone. An anchor device has a screw (with a head portion) and a locking disc. The head portion includes a slotted wall defining a plurality of petals disposed around a central opening. The screw further includes an internal bore. The locking disc is rotatably disposed within the central opening, such that in a first rotational position the petals may flex inwardly, and in a second rotational position the petals are substantially prevented from flexing inwardly. A tool for manipulating the anchor device has a shaft with its end configured to mate with the internal bore of the screw to permit selective rotation of the screw, and a sleeve member rotatably and slideably mounted on the shaft having an end that mates with the locking disc to permit selective rotation of the disc.