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Orthopedic measurement device and methodology to quantitatively and simultaneously measure distance and force during a passive stretching of the mandible
Orthopedic measurement device and methodology to quantitatively and simultaneously measure distance and force during a passive stretching of the mandible
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机译：骨科测量设备和方法，可在下颌骨被动拉伸过程中定量并同时测量距离和力
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摘要
Simultaneous measurement of a border position of a mandible joint opening and the "end-feel" force required to achieve the border position are effectuated through a single apparatus which applies a force to the upper and lower jaw of a patient and continuously measures the degree of opening of the jaw as the mandible joint opens. When a predetermined amount of force is achieved as measured by either a detected degree of spring compression within the device or release of a detent mechanism, the force is automatically or manually withdrawn leaving an indicator showing the maximum jaw opening. Simultaneous border position and "end- feel" force can also be measured in alternative embodiment through reverse scissors and a mechanical dial and slider for continuously measuring the degree of opening while an electrical transducer measures the force applied until the "end-feel" force has been achieved as digitally read out.
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