This technology is a microrobot system that includes a screw part driven by an external rotating magnetic field and a needle part coupled to a base part via an insert structure. Upon reaching the target, the protrusion length of the needle is adjusted through a mechanical groove-and-protrusion locking mechanism to ensure stable fixation.
In fluid environments, microrobots often drift from their target positions due to factors like blood flow. Preventing this typically requires continuous magnetic field control, which leads to reduced control efficiency and high computational loads.
This technology features a mechanical locking structure that houses the needle within the base during transit. Once the target is reached, the needle is extended and its length adjusted by engaging protrusions on the needle's outer surface with grooves inside the base, physically anchoring it to the target. Applicable to surgical robots, interventional systems, and medical automation, this design enhances drug delivery efficiency by increasing dosage capacity and providing an internal storage space within the microrobot.
This invention was developed with support from the Ministry of Science, ICT and Future Planning for the Intelligent Microrobot-based Body-on-a-Chip for Precision Medicine project.
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