現行台灣婦女做乳癌檢測主要以X光機攝影與超音波探測為主。但是東方女性因為乳房脂肪較少,組織較緻密。所以利用超音波來檢查可以比較清楚分辨腫塊為實質固體(如纖維瘤)或含有液體(囊腫),並且對年輕女性更易區分為纖維囊腫或纖維瘤,同時也可免除因罩杯較小被壓迫的不適,所以使用率較高,本論文著重於乳癌腫瘤探測之低成本機構開發,機構本體由一個2-DOF平面機構結合Z方向之上、下升降平台構成新型3-DOF機構,機構中2-DOF平面機構部分之平行四連桿運用Flexure Hinges構成,且以二個馬達傳動控制作為X軸與Y軸位移,配合力量感測器與上、下移動平台以及橫向探測乳癌生物力學模型,此低成本機構未來可應用於輔助探測腫瘤組織。
In Taiwan, most of the breast cancer diagnosis adopts diagnose tools such as X-ray photography and ultrasonic probe. However, for Asian women, using ultrasonic probe for breast cancer diagnosis is more beneficial since fabric and solid tumors are dramatically evident in fat-less and young women breast in comparison to western women. This paper aims to develop a low-cost mechanism for breast tumor exploration so as to help the diagnosis of breast cancer. This mechanism is comprised of a 2-D.O.F based planar mechanism in conjunction with a mechanism that could hoist and descend along Z-axis direction. The 2-D.O.F planar mechanism consists of four parallel links using Flexure Hinges that is associated with two control motors installed on X-axis and Y-axis motion. The advantages of four parallel links using Flexure Hinges can overcome the drawbacks of mechanical degradation against force and positioning error aroused by mechanical motion friction. The development of a low cost mechanism for breast tumor could alleviate breast cancer patient pain, save more cost for incorrect breast diagnosis and improve achieving the best medical service.