| Project/Area Number |
07455100
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Tohoku University |
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Principal Investigator |
CHONAN Seiji Tohoku University, Department of Mechatronics and Precision Engineering, Professor, 工学部, 教授 (20005424)
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| Co-Investigator(Kenkyū-buntansha) |
CHIBA Hiroshi Tohoku University, Department of Urology, Research Associate, 医学部, 助手 (00227331)
JIANG Zhongwei Tohoku University, Department of Mechatronics and Precision Engineering, Associa, 工学部, 助教授 (60225357)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1996: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1995: ¥4,100,000 (Direct Cost: ¥4,100,000)
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| Keywords | Palpation sensor / PVDF piezopolymer film / Detection / Prostatic cancer and bypertrophy / 2層型センサ / 柔軟センサ / 生態硬さ測定 / 生体硬さ測定 |
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| Research Abstract |
A tactile sensor that detects the prostatic cancer and hypertrophy has been proposed and its function as the palpation sensor has been studied experimentally. The sensor is an assembly of layred media with two PVDF (polyvinylidine fluoride) patches embedded in the soft matrix material. The fundamental characteristics of the sensor have been investigated by using a linear traslation stage that pushes the sensor against the object with constant stroke and oscillation frequency. It has been verified that the ratio of the integrated output voltage of inner PVDF film to that of the outer film becomes smaller as the stiffness of the object increases. The clinical test also revealed the favorable function of the present probe as a compact palpation sensor.
The sensor is still experimental, but the plan is to install the sensor onto an artificial robotic finger with the aim of developing an automatic sensing system for detecting the prostatic cancer and hypertrophy in vivo and non-invasively within 3-4 years.
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