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US Patent 5738685 - Osteosynthesis device
US Patent Issued on April 14, 1998
Estimated Patent Expiration Date:
January 29, 2016Estimated 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.
Estimated Patent Expiration Date:
January 29, 2016Estimated 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.AbstractAn osteosynthesis device having a bone screw, particularly a pedicle screw, a fork head that has a groove and a corrective pin seated in the groove of the fork head. A corrective pin is secured against twisting in that the bottom of the groove of the fork head is provided with a plurality of longitudinal slots lying parallel to one another. | InventorsAssigneeApplicationNo. 545576 filed on 01/29/1996US Classes:606/61, Spinal positioner or stabilizer411/308, Involving dissimilarities in the sectional configuration of the threads411/426, Tapered606/72, Orthopedic fastener606/73Threaded fastener elementField of Search606/61, Spinal positioner or stabilizer606/60, Internal fixation means606/73, Threaded fastener element606/72, Orthopedic fastener411/429, Having cap411/433, Including movable threaded segments411/430, Cap crimped onto nut411/432, Multipart411/427, INTERNALLY THREADED FASTENER ELEMENT, E.G., NUT, ETC.411/308, Involving dissimilarities in the sectional configuration of the threads411/426TaperedExaminersPrimary: Buiz, MichaelAssistant: Woo, Julian W. Attorney, Agent or FirmUS Patent References5176680, Device for the adjustable fixing of spinal osteosynthesis rodsIssued on: 01/05/1993 Inventor: Vignaud, et al.5226766, Bone screw with improved threads Issued on: 07/13/1993 Inventor: Lasner5261912, Implant for an osteosynthesis device, in particular for spinal column correction Issued on: 11/16/1993 Inventor: Frigg5306275, Lumbar spine fixation apparatus and method Issued on: 04/26/1994 Inventor: Bryan5443467, Bone screw Issued on: 08/22/1995 Inventor: Biedermann, et al.5496321, Rod anchor seat having a sliding interlocking rod connector Issued on: 03/05/1996 Inventor: Puno, et al.5499983, Variable angle spinal screw Issued on: 03/19/1996 Inventor: Hughes5562663Implant interconnection mechanism Issued on: 10/08/1996 Inventor: Wisnewski, et al. Foreign Patent References
International ClassA61B 017/56Foreign Application Priority Data1993-05-18 DE |
