Release and Capture Systems for Micro-Objects in Fluidic Environments: Design, Fabrication, and Comparative Evaluation
DOI:
https://doi.org/10.17979/ja-cea.2025.46.12208Keywords:
Micro and nano mechatronic systems, Smart structures, Robotics technologies, Microsystems: nano- and micro-technologies, Application of mechatronic principlesAbstract
Precise manipulation of micro-objects within the bloodstream is essential for various minimally invasive medical procedures. This work presents the development and comparative analysis of two microgripper designs suitable for integration at the tip of a catheter: one based on capillary forces and the other employing a bistable mechanical mechanism. The former uses a controlled silicone oil droplet for gentle and adaptable object capture; its working principles and capillary bridge simulations are detailed. The latter features a direct mechanical gripping system with two stable states, offering rapid response, robustness, and low energy consumption, as validated through simulation. A comparative discussion evaluates both systems in terms of gripping mechanism, adaptability, control, and endovascular suitability, highlighting their respective advantages and limitations
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Copyright (c) 2025 Enrique Mancha-Sánchez, Andrés J. Serrano-Balbontín, Inés Tejado, Blas M. Vinagre
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