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    Multi-planar pre-curved rotary endodontic file
    71.
    发明授权
    Multi-planar pre-curved rotary endodontic file 有权

    公开(公告)号：US10136962B2

    公开(公告)日：2018-11-27

    申请号：US14790813

    申请日：2015-07-02

    申请人： William B. Johnson

    发明人： William B. Johnson

    IPC分类号： A61C5/42 ,  A61C5/02

    摘要： An improved rotary endodontic file includes a multi-planar pre-curved apical portion having a first and a second curvature. The pre-curved apical portion begins at about one-third to one-quarter of the working length as measured from the tip end of the endodontic instrument. The first and second curvature permit the file to continually search and engage the walls of a tooth root canal in a forced inside-forced outside manner. As the file works its way down, it breaks free of any ledges encountered, probes lateral- and delta-type openings, and does not allow the file to stray from the curvature of the canal.

    Tray system and method of preparing a customized information sheet
    77.
    发明授权
    Tray system and method of preparing a customized information sheet 有权

    公开(公告)号：US10028808B2

    公开(公告)日：2018-07-24

    申请号：US13960962

    申请日：2013-08-07

    申请人： DENTSPLY International Inc.

    发明人： Anders Johansson ,  Johan Bergelin

    IPC分类号： B65D83/10 ,  A61C8/00 ,  A61C3/04 ,  A61C19/02

    摘要： The invention discloses a tray system and a method for preparing such tray system. The tray system including a tray with a base having holding arrangements for holding implant components, instruments and/or instrument holders, at least a first and a second information sheet which both are adapted to be independently removably arranged on said base of said tray. Each information sheet has its own distribution of holes, which are placed in register with the holding arrangements of the base when the information sheet is arranged on the base, so that an implant component, instrument or instrument holder is arrangable into one of said holing arrangements through a respective one of said holes.

    MRI MACHINE AND METHOD FOR MEASURING A HEAD AREA OF A PATIENT
    78.
    发明申请
    MRI MACHINE AND METHOD FOR MEASURING A HEAD AREA OF A PATIENT 审中-公开

    公开(公告)号：US20180199852A1

    公开(公告)日：2018-07-19

    申请号：US15868179

    申请日：2018-01-11

    申请人： DENTSPLY SIRONA Inc.

    发明人： Erich HELL ,  Volker RASCHE ,  Johannes ULRICI

    IPC分类号： A61B5/055 ,  G01R33/30 ,  G01R33/385

    CPC分类号： A61B5/0555 ,  A61B5/0042 ,  G01R33/28 ,  G01R33/307 ,  G01R33/3802 ,  G01R33/381 ,  G01R33/385

    摘要： Described is an MRI machine for measuring a head area of a patient, comprising at least one primary magnetic field unit, at least one gradient coil assembly, a closed patient opening, at least one excitation coil and at least one receiver coil. In a first region, a closed patient opening of the MRI machine comprises a first inner diameter perpendicular to a center axis of the MRI machine and, in the second region, a second inner diameter, which is arranged parallel to the first inner diameter. The first inner diameter is smaller than the second inner diameter, wherein the first region at least partially comprises the head area of the patient, wherein the second region at least partially comprises a torso area of the patient. The MRI machine is arranged obliquely, wherein, in a z-direction relative to a direction of the gravitational force, the center axis of the MRI machine comprises an angle between 20° and 75°.