On the afternoon of April 18, 2019, at the invitation of the School of Mechanical Engineering of Zhejiang University, Professor Albert Shih of the University of Michigan held a lecture on "Machining Inside the Blood Vessel: Grinding of Calcified Plaque and Cutting of Clots" at Shao Keguan 211, Yuquan Campus . More than 50 teachers and students from the School of Mechanical Engineering participated in the report meeting. This report was hosted by Academician Yang Huayong, dean of the School of Mechanical Engineering.

At the beginning of the meeting, Academician Yang Huayong first extended a warm welcome to Professor Shih for being able to conduct this report, and then introduced Professor Shih. Then he briefly introduced the theme of this report and invited Professor Shih to give a presentation.

The content of the report mainly revolves around two parts. The two parts respectively focus on the two methods of removing thrombus and clots. The first part mainly focuses on the removal of calcified plaques in blood vessels by grinding; the second part mainly focuses on the removal of calcified plaques in blood vessels. A clot in a blood vessel. Professor Shih's report is full of pictures and texts, and many of the key parts are assigned with videos, clearly expressing the basic principles of the two methods and the results achieved.

After Professor Shih's presentation, the students actively asked questions and raised their own doubts about some of the technical problems. Professor Shih expressed appreciation for the problems found by the students and answered their questions in detail.

Finally, Professor Shih said that blood vessel clots are still a major problem in medicine, and many countries and regions cannot cure them. At present, the method proposed by Professor Shih’s team still has some problems to be solved. Common efforts are needed so that unsolved problems can be dealt with in the near future.