Capsule-type microrobot and method of using the same

Capsule-type microrobot and method of use

This technology features a micro-scale actuation mechanism consisting of a body with an internal storage compartment and a magnetic layer, sealed by a cap. By applying an external rotating magnetic field, the device is propelled to a target location, where the cap is detached to release its contents.

Existing microrobots are limited to specific targets, such as cancer cells that secrete certain substances, and often require invasive procedures or the insertion of mechanical equipment for localized drug delivery.

This technology uses an external rotating magnetic field to generate propulsion for the magnetic-layered actuator, guiding it to a target site. By adjusting the characteristics (direction and intensity) of the magnetic field, the cap is detached from the actuator, allowing for the direct, localized release of drugs or other substances. Applicable to surgical robots, interventional systems, and medical automation, it enhances biocompatibility and reduces side effects during insertion and delivery.

‍

‍

Key Features:

• Actuator comprising a body with an internal storage compartment and an external magnetic layer
• Cap coupled to one side of the storage compartment to seal the internal space for content storage
• Actuator rotates relative to the cap through interaction between the external rotating magnetic field and the magnetic layer to detach the cap
• Structure that rotates while coupled to the cap and moves to a target location through interaction with a rotating magnetic field

‍

This invention was developed with support from the Ministry of Science, ICT and Future Planning for the development of 3D precision microstructures and cell/drug delivery-based technologies.