前立腺癌および前立腺肥大症触診用センサの開発研究 : センサの構造設計

Development of a palpation sensor for detecting prostatic cancer and hypertrophy : optimum structural design of sensor

Creators Chonan Seiji

Creators Jiang Zhong Wei

Creators Tanahashi Yoshikatu

Creators Tanaka Mami

Creators Kato Takuji

This paper is concerned with the development of a palpation sensor for detecting the prostatic cancer and hypertrophy. The sensor is a layered medium with two polyvinylidene fluoride (PVDF) films embedded in the matrix rubber block. The temporal mean values, I_1 and I_2, of absolute voltage signals from the polymer films are calculated and their ratio I_1/I_2 is used as the sensor output. First, the fundamental characteristics of sensor are examined on a rectangular sensor with a plane surface. Then, the surface geometry of sensor is designed so that the sensor output clearly extracts the features on the stiffness of the materials. Finally, a compact cylindrical sensor which is inset in the doctor's forefinger is presented and its characteristics as a palpation sensor are studied experimentally. Some representative clinical data on the hardened and normal prostate glands are also presented.

Copyright: 日本機械学会 (The Japan Society of Mechanical Engineers)()

[ISSN]0387-5024

[NCID]AN00187463

[isVersionOf] [URI]http://www.jsme.or.jp/publish/ronbun/