Osteosynthesis screw
March 20, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3681963 3918345 Thread-forming fastener having dual lobulation and dies for making the same Thread forming screw Device comprising an implant and screws for fastening said implant to a bone, and a device for connecting two separated pieces of bone Bone screw Bolt for orthopaedic surgical use Cannulated orthopedic screw Headed screw construction for use in fixing the position of an intramedullary nail Tapping screw and mechanism of engaging member to be engaged using the same Patent #: 5772374 InventorsAssigneeApplicationNo. 09/743581 filed on 03/20/2001US Classes:606/73Threaded fastener elementExaminersPrimary: Shaver, KevinAssistant: Priddy, Michael B. Attorney, Agent or FirmInternational ClassesA61B 17/68 (20060101)A61B 17/86 (20060101) Foreign Application Priority Data1998-07-13 DEAbstractThe invention relates to an osteosynthesis screw (1) comprising a shaft (3) with a thread (2) and a head (4) formed at one end and having a notch (5) for a tool. The shaft region (3) with the thread has a configuration with a uniform thickness, ie. trilobular. This configuration prevents inverse rotation due to rapid further growth of tissue | |
