Method of monitoring mandibular positions and movements
    2.
    发明授权
    Method of monitoring mandibular positions and movements 失效
    监测位置和运动的方法

    公开(公告)号:US3822694A

    公开(公告)日:1974-07-09

    申请号:US30042172

    申请日:1972-10-24

    申请人: JANKELSON BERNARD

    发明人: MILLS G

    IPC分类号: A61B5/11 A61C19/045 A61B5/10

    摘要: A method of monitoring mandibular movements whereby a permanent magnet is secured to the mandible and one or more fluxgate magnetometers are located relative to the permanent magnet so as to sense changes in magnetic field which result from mandibular movement. The outputs of the fluxgate magnetometers are linearized, if necessary, and then recorded to provide an indication of mandibular movement in one or more planes. The output from the magnetometers may be differentiated by associated electronics to provide an indication of velocity and/or acceleration of the mandible during closure.

    摘要翻译: 一种监测下颌骨运动的方法,其中永久磁铁被固定到下颌骨,并且一个或多个磁通门磁力计相对于永磁体定位,以便感测由下颌运动引起的磁场变化。 如果需要,磁通门磁力计的输出被线性化,然后被记录以提供在一个或多个平面中的下颌运动的指示。 来自磁力计的输出可以通过相关联的电子元件来区分,以提供关闭期间下颌骨的速度和/或加速度的指示。

    Mandible stimulator
    8.
    发明授权
    Mandible stimulator 失效
    下颚刺激器

    公开(公告)号:US4174706A

    公开(公告)日:1979-11-20

    申请号:US810507

    申请日:1977-06-27

    IPC分类号: A61N1/36 A61B5/05

    CPC分类号: A61N1/36014 A61N1/36003

    摘要: A stimulator for causing involuntary mandibular closure. In a "test" mode a constant voltage is applied to left and right electrode circuits, and the currents through the electrode circuits are measured to determine electrode circuit conductivity. A first comparator circuit flashes respective "open" circuit warning lamps if the current through either of the electrodes is less than a preset value, and it flashes a "good" connection indicator lamp if the current through both electrodes is greater than the preset value. A second comparator circuit determines if the current through one electrode exceeds the current through the other electrode by a preset value, and flashes respective "low" current warning lamps in response thereto. In the "pulse" mode an oscillator repetatively charges a capacitor to a high voltage through a pulse transformer, and the high voltage is then gated to a control circuit which generates a current pulse having an adjustable amplitude through the electrode circuits to produce involuntary mandibular closure. The amplitude of the current through one electrode circuit with respect to the current through the other electrode circuit may be adjusted with a balance control. In the "pulse" mode, the battery voltage is also measured, and respective lamps flash in synchronism with the current pulses to indicate whether the battery is producing the proper voltage or whether the battery must be replaced.

    摘要翻译: 刺激器引起不自主的下颌关闭。 在“测试”模式中,向左和右电极电路施加恒定电压,并且测量通过电极电路的电流以确定电极电路电导率。 如果通过任一电极的电流小于预设值,则第一个比较器电路会闪烁相应的“开路”电路警告灯,如果通过两个电极的电流大于预设值,它将闪烁“良好”的连接指示灯。 第二比较器电路确定通过一个电极的电流是否超过通过另一个电极的电流预设值,并且响应于此而闪烁相应的“低”电流警告灯。 在“脉冲”模式中,振荡器通过脉冲变压器将电容器重复地充电到高电压,然后将高电压门控到控制电路,该控制电路通过电极电路产生具有可调振幅的电流脉冲,以产生无意识的下颌闭合 。 可以通过平衡控制来调节通过一个电极电路相对于通过另一个电极电路的电流的电流的幅度。 在“脉冲”模式下,也测量电池电压,并且各个灯与电流脉冲同步闪烁,以指示电池是否产生适当的电压或电池是否必须更换。