【演講訊息】

題  目：Soft Tissue Cutting Mechanics and the Design and Manufacturing of Advanced Needles for Biopsy

講  者：Prof. Albert Shih

Professor of Mechanical Engineering, Biomedical Engineering, University of Michigan at Ann Arbor, USA

日  期：103年10月23日（星期四）

時  間：15:00-16:30

地  點：國立清華大學工程一館107演講廳

主持人：動機系 陳榮順教授

演講摘要：Needle is one of the most common features in medical devices and utilized widely in minimally invasive procedures. This presentation summarizes our research in needle design and manufacturing for biopsy, which is a key function of the needle. Biopsy is a tissue cutting process. Most of the current biopsy needles are sub-optimal to efficiently acquire adequate tissue samples. This has resulted the high non-diagnostic and false-negative rate in diagnosis. The tissue cutting mechanics, which study the sharp blade cutting the soft tissue, will first be introduced. Effects of the inclination angle and chip flow angle in oblique cutting of tissue are discussed. This research leads to better needle tip cutting edge geometry that enables more efficient biopsy. Grinding processes and mathematical modeling of the setup for needle tip grinding are presented to demonstrate the integration of design and manufacturing for needles. This talk is concluded by presenting a series of anatomically-accurate simulators validation of our advanced needle biopsy (and guidance) research as well as for clinical training.