A new depth-sense esthesiometer. A comparative study on sensitivity.
描述了一种新型深度感觉测量仪的结构与功能，相比Renfrew原型，该仪器能更好控制运动速度、方向和压力，自动测量阈值且准确性更高。对33名正常人和9名患者测试表明，新仪器可靠性显著提升。
The structure and functions of a depth-sense esthesiometer have been described. Unlike the prototype designed by Renfrew, the new instrument is so fabricated that the speed and the directions of its movements, and the pressure applied by the finger, can be constantly controlled. In addition, it provides an automatic measurement of depth-sense thresholds with greater accuracy. Thirty-three normal subjects and nine patients were examined with both instruments. With the new esthesiometer all normal hands, as expected, showed normal results, but, with the Renfrew instrument, 12 of these 66 hands (18%) showed abnormal results. Similarly, on examination of the hands of the nine patients, the new instrument showed equally improved reliability.