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- W3115655403 abstract "Objective: For the revascularization in small vessels such as coronary arteries, we present a guide-wired helical microrobot mimicking the corkscrew motion for mechanical atherectomy that enables autonomous therapeutics and minimizing the radiation exposure to clinicians. Methods: The microrobot is fabricated with a spherical joint and a guidewire. A previously developed external electromagnetic manipulation system capable of high power and frequency is incorporated and an autonomous guidance motion control including driving and steering is implemented in the prototype. We tested the validity of our approach in animal experiments under clinical settings. For the in vivo test, artificial thrombus was fabricated and placed in a small vessel and atherectomy procedures were conducted. Results: The devised approach enables us to navigate the helical robot to the target area and successfully unclog the thrombosis in rat models in vivo. Conclusion: This technology overcomes several limitations associated with a small vessel environment and promises to advance medical microrobotics for real clinical applications while achieving intact operation and minimizing radiation exposures to clinicians. Significance: Advanced microrobot based on multi-discipline technology could be validated in vivo for the first time and that may foster the microrobot application at clinical sites." @default.
- W3115655403 created "2021-01-05" @default.
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- W3115655403 date "2021-08-01" @default.
- W3115655403 modified "2023-10-07" @default.
- W3115655403 title "Guide-Wired Helical Microrobot for Percutaneous Revascularization in Chronic Total Occlusion <i>in-Vivo</i> Validation" @default.
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- W3115655403 doi "https://doi.org/10.1109/tbme.2020.3046513" @default.
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