Journal
MICROMACHINES
Volume 12, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/mi12101249
Keywords
microrobot; autonomous actuation system; medical imaging; system integration; in vivo
Categories
Funding
- National Key R&D program of China [2019YFB1309701]
- National Natural Science Foundation of China (NSFC) [61804009]
- Beijing Institute of Technology Research Fund Program for Young Scholars and Analysis& Testing Center, Beijing Institute of Technology
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This paper explores key components of microrobot's autonomous actuation systems, including actuation systems, medical imaging systems, and control systems, aiming to assist with their system integration. Hardware integration involves two situations based on sharing transmitting equipment or not, taking into account interference, efficiency, microrobot's material and structure. Additionally, system integration of hybrid actuation and multimodal imaging can enhance microrobot's navigation effect.
Microrobots have received great attention due to their great potential in the biomedical field, and there has been extraordinary progress on them in many respects, making it possible to use them in vivo clinically. However, the most important question is how to get microrobots to a given position accurately. Therefore, autonomous actuation technology based on medical imaging has become the solution receiving the most attention considering its low precision and efficiency of manual control. This paper investigates key components of microrobot's autonomous actuation systems, including actuation systems, medical imaging systems, and control systems, hoping to help realize system integration of them. The hardware integration has two situations according to sharing the transmitting equipment or not, with the consideration of interference, efficiency, microrobot's material and structure. Furthermore, system integration of hybrid actuation and multimodal imaging can improve the navigation effect of the microrobot. The software integration needs to consider the characteristics and deficiencies of the existing actuation algorithms, imaging algorithms, and the complex 3D working environment in vivo. Additionally, considering the moving distance in the human body, the autonomous actuation system combined with rapid delivery methods can deliver microrobots to specify position rapidly and precisely.
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