| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
We have developed several different ultrasound sensors and carried out the experience using bone to confirm that it is possible to detect reflection wave from opposite surface of bone. We have investigated the reflection waves from the bottom of drilling hole, opposite surface of bone, multiple reflection between the bottom of drilling hole and sensor, and scattering waves. We have develop a filter to remove the signal induced by input pulse by using polynomial function. Three types of sensors with a center frequency of 3.5MHz, 10MHz and 15MHz were manufactured and used to detect the thickness of bone, and it has been confirmed that the sensor with a center frequency of 3.5MHz is better to detect the bone thickness from 1mm to 3mm. We are preparing for a document to obtain the patent of a monitoring system including ultrasound reflection method.
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