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A study on the beamforming system with reconfigurable focusing depth for ultrasound-enhanced thrombolysis
- A study on the beamforming system with reconfigurable focusing depth for ultrasound-enhanced thrombolysis
- Song, Hi Yuen; Kim, Min Kyoung; Cho, Min Gyu; Lee, Yang Hun; Oh, Inn Yeal; Jung, Joon Taek; Choi, Hong Soo; Park, Chul Soon
- DGIST Authors
- Choi, Hong Soo
- Issue Date
- 2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014
- Article Type
- Conference Paper
- In order to dissolve clots within blood vessels located in various parts of the human body with one sonothrombolysis application, the device employed should be able to control the focal depth where acoustic energy is focused. This paper presents such an ultrasound beamforming system with reconfigurable focal depth. It consists of an annular piezoelectric micromachined ultrasonic transducer (pMUT) array of 1 cm radius, and a beamforming unit that is composed of an ARM processor and a driving circuit. The measured peak intensity at the focal point of 13 mm is 1.35 W/cm2, and the average intensity of the -3 dB focal dimension from the peak intensity is 933 mW/cm. The proposed system operating at 1.21 MHz could be used for ultrasound-accelerated thrombolysis with an intensity that is above typical diagnostic levels at the focusing point, and also with a reconfigurable focusing depth. © 2014 IEEE.
- Institute of Electrical and Electronics Engineers Inc.
- Related Researcher
Choi, Hong Soo
Bio-Micro Robotics Lab
Micro/Nano robot; Neural prostheses; MEMS; BMI; MEMS/NEMS; BioMEMS; MEMS 초음파 트랜스듀스; 인공와우
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- Department of Robotics EngineeringBio-Micro Robotics Lab2. Conference Papers
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