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Development of electric control catheter and tweezers for thrombosis sample in blood vessels using piezoelectric polymeric fibers

机译:使用压电聚合物纤维开发用于血管内血栓样本的电控导管和镊子

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Poly-L-lactic acid (PLLA) has recently attracted attention as a polymer which exhibits a high shear piezoelectric constant. In this study, it was possible to control the piezoelectric motion of the PLLA fiber by applying d.c. voltage and a.c. voltage similar to a piezoelectric actuator. Then, on the basis of the experimental results, an electric control catheter and tweezers, using PLLA fibers (PLLA fiber catheter/tweezers) was developed. In the demonstration, it was assumed that thrombosis in blood vessels occurred and it was attempted to remove the thrombosis from the affected area using the PLLA fiber catheter and tweezers. This very delicate operation was attempted under a microscope. Using the PLLA fiber catheter and tweezers, the affected area was excised. A video movie of the test demonstration was recorded using a CCD video camera. All stages proceeded well in this study.
机译:聚-L-乳酸(PLLA)最近作为具有高剪切压电常数的聚合物而引起了人们的注意。在这项研究中,有可能通过施加直流电来控制PLLA纤维的压电运动。电压和交流电电压类似于压电致动器。然后,根据实验结果,开发了使用PLLA纤维(PLLA纤维导管/镊子)的电控导管和镊子。在演示中,假设发生了血管中的血栓形成,并尝试使用PLLA纤维导管和镊子从患处去除血栓形成。在显微镜下尝试了这种非常精细的操作。使用PLLA纤维导管和镊子切除患处。使用CCD摄像机记录了测试演示的视频电影。这项研究的所有阶段都进展顺利。

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