Developing a Compact Robotic Needle Driver for MRI-Guided Breast Biopsy in Tight Environments

David Navarro-Alarcon, Satwinder Singh, Tianxue Zhang, Hayley Louise Chung, Kwun Wang Ng, Man Kiu Chow, Yunhui Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review


In this letter, we present the design and development of a new robotic system for MRI-guided breast biopsy. The robot's structure is nonmagnetic, therefore, it can safely operate from within the scanner's magnetic bore; it has a compact Cartesian mechanism that allows it perform needle insertion tasks from both frontal and lateral directions inside an open bore scanner. A combination of piezoelectric and pneumatic actuators drive the motion of the proposed three degrees-of-freedom robot. To control the needle's insertion, we present an adaptive position regulator that uses the feedback from multiple sensors and that is robust to external disturbances. A detailed experimental study is presented to validate the performance and magnetic properties of the new mechanical prototype.
Original languageEnglish
Pages (from-to)1648 - 1655
Number of pages8
JournalIEEE Robotics and Automation Letters
Issue number3
Publication statusPublished - Jul 2017
Externally publishedYes

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