| 摘要 |
For the determination of stability of an implant in bone (K), a vibration effectuating unit (1) is used, which gives a frequency signal A corresponding to the stability. A receiving unit receives this signal and converts it to digital information signal (i2), which relates to the stability. A processing unit (4), receives the digital signal and processes it together with information relating to distortion factors from the current situation, such as implant dimension, surface, material, anatomical site etc. The processing unit gives as output a presentation information (i4), which disregards said factors and therefore representing only the stability. Alternatively, the processed information is stored for comparison with later information, to make it possible to follow the healing process, or otherwise monitor the function of the implant.
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