...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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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 |