| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint sound measuring system capable of noninvasively diagnosing gonarthrosis, and accurately identifying an affected part of a patient.SOLUTION: A joint sound measuring system includes one or more vibration sensors 12a to 12d for detecting vibration accompanying a bending/stretching exercise of an object to be examined and outputting a vibration signal, an angle sensor 14 for detecting a bending/stretching angle of the object to be examined and outputting angle information, a signal dividing part 16 for dividing the vibration signal into two or more divided signals based on the angle information, and a frequency analysis part 18 for performing frequency analysis for the two or more divided signals respectively and outputting two or more analysis signals.SELECTED DRAWING: Figure 1 |
